Stefan Ploner, M. Sc.

Chair of Computer Science 5 (Pattern Recognition)

Research associates

Address

Martensstraße 3
91058 Erlangen

Contact

stefan.ploner@fau.de

Since 08/2017: PhD Student, Pattern Recognition Lab, Friedrich-Alexander University Erlangen-Nürnberg

Research focus on motion correction and enhanced signal reconstruction in the field
of Optical Coherence Tomography (OCT) and OCT angiography (OCTA)
In collaboration with the Biomedical Optical Imaging and Biophotonics Group, MIT
Published first-authored articles at MICCAI, ISBI and in Biomedical Optics Express
Developed image processing methods that enabled clinical studies published in IOVS and TVST (1, 2)
Journal reviewer for BOE, OE, IOVS, TVST, MedPhys, JBio, JBO, Optics Letters, and others

10/2014 - 05/2017: Master of Science with distinction in Computer Science, Friedrich-Alexander University Erlangen-Nürnberg

Focus on medical image processing, pattern recognition and high-performance computing
Master thesis: Improving 3D OCT motion correction (oral presentation at the ARVO annual meeting)

10/2015 - 05/2016: Visiting student, Massachusetts Institute of Technology, Cambridge, USA

Member of the Biomedical Optical Imaging and Biophotonics Group under supervision of Prof. James Fujimoto
Pioneering research in chorioretinal blood flow quantification based on VISTA-OCTA (oral presentation at the ARVO annual meeting)

04/2011 - 03/2015: Bachelor of Science in Computer Science, Friedrich-Alexander University Erlangen-Nürnberg

Focus on pattern recognition, computer architecture, discrete optimization and computer graphics
Student research assistant at the Pattern Recognition Lab, research on false
color visualization in the multispectral imaging software framework Gerbil

Teaching Experience

10/2014 - 01/2015: Student teaching assistant, Friedrich-Alexander University Erlangen-Nürnberg
- Exercises in Theory of Computation and Formal Languages
10/2011 - 09/2012: Student teaching assistant, Friedrich-Alexander University Erlangen-Nürnberg
- Exercises in Algorithms and Data Structures

2022

Temporally resolved 3-D retinal blood flow quantification using advanced motion correction and signal reconstruction in optical coherence tomography angiography

(Third Party Funds Single)

Project leader: Stefan Ploner, Andreas Maier
Term: since November 15, 2022
Acronym: 4D-OCTA
Funding source: DFG-Einzelförderung / Sachbeihilfe (EIN-SBH)

Abstract

Die optische Kohärenztomographie (OCT) erzeugt volumetrische 3-D-Bilder von Gewebe mit Mikrometerauflösung, indem sie einen Laserstrahl zum Scannen verwendet und die Amplitude und Zeitverzögerung von zurückgestreutem Licht misst. Die OCT hat einen großen Einfluss auf die Augenheilkunde und wurde zu einer Standard-Bildgebungsmodalität für die Diagnose, die Überwachung des Krankheitsverlaufs und das Ansprechen auf die Behandlung sowie für die Untersuchung der Pathogenese von Krankheiten wie diabetischer Retinopathie, altersbedingter Makuladegeneration und Glaukom. Die jüngste Entwicklung der OCT-Angiographie (OCTA) hat die grundlegende und klinische Forschung dramatisch beschleunigt. OCTA führt eine tiefenaufgelöste (3-D) Bildgebung der retinalen Mikrovaskulatur durch, indem es wiederholt die gleiche Netzhautposition abbildet und den Bewegungskontrast von sich bewegenden Blutzellen erkennt. Im Vergleich zu herkömmlichen Ansätzen, die auf injizierten Kontrastmitteln basieren, hat OCTA den Vorteil, dass es nicht invasiv ist, sodass die Bildgebung bei jedem Patientenbesuch durchgeführt werden kann, was Längsschnittstudien ermöglicht. Allerdings hat OCTA auch einige Einschränkungen. Da eine wiederholte Bildgebung erforderlich ist, um den Blutfluss zu erkennen, sind die Aufnahmezeiten lang und die Daten können durch Augenbewegungen und Bildartefakte verzerrt werden, was eine quantitative Längsschnittanalyse erschwert. OCTA-Algorithmen können das Vorhandensein eines Blutflusses erkennen, sind jedoch nur begrenzt in der Lage, subtile Veränderungen des Flusses aufzulösen, die frühe Anzeichen einer Krankheit sein können. Zeitliche Schwankungen des Flusses, die durch den Herzzyklus oder die funktionelle Reaktion der Netzhaut verursacht werden, sind schwer zu untersuchen. Wir schlagen vor, ein neues Framework für OCTA zu entwickeln, das eine Bewegungskorrektur auf Kapillarebene ermöglicht, Blutflussgeschwindigkeiten differenziert und eine Analyse auf mehreren Zeitskalen ermöglicht (4-D OCTA). Die Fähigkeit, über die Visualisierung der Mikrovaskulatur hinauszugehen und den Fluss und seine zeitlichen Schwankungen zu beurteilen, ermöglicht die Beurteilung subtiler Beeinträchtigungen der mikrovaskulären Perfusion sowie des Herzzyklus und der Reaktion auf funktionelle Stimulation. In Kombination mit der vaskulären strukturellen Bildgebung versprechen diese Fortschritte, neue Krankheitsmarker in früheren Krankheitsstadien bereitzustellen, eine genauere Messung des Krankheitsverlaufs und des Ansprechens auf die Therapie in pharmazeutischen Studien zu ermöglichen und zur Aufklärung der Pathogenese bei Netzhauterkrankungen beizutragen.

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2017

Joint Iterative Reconstruction and Motion Compensation for Optical Coherence Tomography Angiography

(Third Party Funds Single)

Project leader: Andreas Maier, Stefan Ploner
Term: August 1, 2017 - July 31, 2019
Acronym: Joint Reco & MoCo for OCT(A)
Funding source: DFG-Einzelförderung / Sachbeihilfe (EIN-SBH)

Abstract

Optical coherence tomography (OCT) is a non-invasive 3-D optical imagingmodality that is a standard of care in ophthalmology [1,2]. Since the introduction of Fourier-domain OCT [3], dramatic increases in imaging speedbecame possible, enabling 3-D volumetric data to be acquired. Typically, aregion of the retina is scanned line by line, where each scanned lineacquires a cross-sectional image or a B-scan. Since B-scans are acquiredin milliseconds, slices extracted along a scan line, or the fast scanaxis, are barely affected by motion. In contrast, slices extractedorthogonally to scan lines, i. e. in slow scan direction, areaffected by various types of eye motion occurring throughout the full,multi-second volume acquisition time. The most relevant types of eyemovements during acquisition are (micro-)saccades, which can introducediscontinuities or gaps between B-scans, and slow drifts, which causesmall, slowly changing distortion [4]. Additional eye motion is caused by pulsatile blood flow,respiration and head motion. Despite ongoing advances in instrumentscanning speed [5,6] typical volume acquisition times havenot decreased. Instead, the additional scanning speed is used for densevolumetric scanning or wider fields of view [7]. OCT angiography (OCTA) [8–11] multiplies therequired number of scans by at least two, and even more scans are neededto accommodate recent developments in blood flow speed estimation whichare based on multiple interscan times [12,13]. As a consequence,there is an ongoing need for improvement in motion compensation especiallyin pathology [14–16].

We develop novel methods for retrospective motion correction of OCT volume scans of the anterior and posterior eye, and widefield imaging. Our algorithms are clinically usable due to their suitability for patients with limited fixation capabilities and increased amount of motion, due to their fast processing speed, and their high accuracy, both in terms of alignment and motion correction. By merging multiple accurately aligned scans, image quality can be increased substantially, enabling the inspection of novel features.

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2025

Journal Articles

Won J., Yaghy A., Ploner S., Kaiser S., Girgis JM., Hwang Y., Jamil MU., Maier A., Waheed NK., Fujimoto JG.:
High-Resolution, Motion-Corrected, Volume-Fused OCT for Investigating Longitudinal Changes in Subretinal Drusenoid Deposits in Intermediate AMD
In: Translational Vision Science & Technology 14 (2025), Article No.: 15
ISSN: 2164-2591
DOI: 10.1167/tvst.14.6.15
BibTeX: Download
Jamil MU., Won J., Ploner S., Marmalidou A., Takahashi H., Kaiser S., Hwang Y., Abu-Qamar O., Yaghy A., Witkin AJ., Zhao PY., Desai S., Duker JS., Maier A., Fujimoto JG., Waheed NK.:
High-Resolution OCT Reveals Age-Associated Variation in the Region Posterior to the External Limiting Membrane
In: Translational Vision Science & Technology 14 (2025), p. 16-
ISSN: 2164-2591
DOI: 10.1167/tvst.14.1.16
BibTeX: Download

2024

Journal Articles

Schottenhamml J., Würfl T., Ploner S., Husvogt L., Lämmer R., Hohberger B., Maier A., Mardin C.:
Glaucoma detection using non-perfused areas in OCTA
In: Scientific Reports 14 (2024), Article No.: 10306
ISSN: 2045-2322
DOI: 10.1038/s41598-024-60839-4
BibTeX: Download
Husvogt L., Yaghy A., Camacho A., Lam K., Schottenhamml J., Ploner S., Fujimoto JG., Waheed NK., Maier A.:
Ensembling U-Nets for microaneurysm segmentation in optical coherence tomography angiography in patients with diabetic retinopathy
In: Scientific Reports 14 (2024), Article No.: 21520
ISSN: 2045-2322
DOI: 10.1038/s41598-024-72375-2
URL: https://rdcu.be/dT0FK
BibTeX: Download
Schottenhamml J., Würfl T., Ploner S., Husvogt L., Lämmer R., Hohberger B., Maier A., Mardin C.:
Impact of acquisition area on deep-learning-based glaucoma detection in different plexuses in OCTA
In: Scientific Reports 14 (2024), Article No.: 20414
ISSN: 2045-2322
DOI: 10.1038/s41598-024-71235-3
BibTeX: Download
Won J., Takahashi H., Ploner S., Karbole W., Abu-Qamar O., Yaghy A., Marmalidou A., Kaiser S., Hwang Y., Lin J., Witkin A., Desai S., Baumal CR., Maier A., Curcio CA., Waheed NK., Fujimoto JG.:
Topographic Measurement of the Subretinal Pigment Epithelium Space in Normal Aging and Age-Related Macular Degeneration Using High-Resolution OCT
In: Investigative Ophthalmology & Visual Science 65 (2024), Article No.: 18
ISSN: 0146-0404
DOI: 10.1167/iovs.65.10.18
BibTeX: Download

Conference Contributions

Karbole W., Ploner S., Won J., Marmalidou A., Takahashi H., Waheed NK., Fujimoto JG., Maier A.:
3D Deep Learning-based Boundary Regression of an Age-related Retinal Biomarker in High Resolution OCT
German Conference on Medical Image Computing, BVM 2024 (Erlangen, March 10, 2024 - March 12, 2024)
In: Andreas Maier, Thomas M. Deserno, Heinz Handels, Klaus Maier-Hein, Christoph Palm, Thomas Tolxdorff (ed.): Bildverarbeitung für die Medizin 2024. BVM 2024, Wiesbaden: 2024
DOI: 10.1007/978-3-658-44037-4_90
BibTeX: Download
Jamil MU., Won J., Ploner S., Marmalidou A., Kaiser S., Takahashi H., Hwang Y., Yaghy A., Maier A., Fujimoto JG., Waheed N.:
Age-Related Variations in the External Limiting Membrane and the Ellipsoid Zone
ARVO annual meeting (Seattle, WA, May 5, 2024 - May 9, 2024)
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2793996
URL: https://iovs.arvojournals.org/article.aspx?articleid=2793996
BibTeX: Download
Ploner S., Won J., Takahashi H., Karbole W., Yaghy A., Marmalidou A., Schottenhamml J., Waheed NK., Fujimoto JG., Maier A.:
A reliable, fully-automatic pipeline for 3D motion correction and volume fusion enables investigation of smaller and lower-contrast OCT features
ARVO annual meeting 2024 (Seattle, WA, May 5, 2024 - May 9, 2024)
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2794904
URL: https://iovs.arvojournals.org/article.aspx?articleid=2794904
BibTeX: Download
Won J., Karbole W., Takahashi H., Ploner S., Marmalidou A., Yaghy A., Hwang Y., Lin J., Baumal CR., Witkin AJ., Liang M., Maier A., Waheed NK., Curcio C., Fujimoto JG.:
Topographic measurement of the sub-retinal pigment epithelium space in normal aging and age-related macular degeneration using volumetric high-resolution OCT
ARVO imaging in the eye conference (Seattle, WA, May 4, 2024 - May 4, 2024)
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2800456
URL: https://iovs.arvojournals.org/article.aspx?articleid=2800456
BibTeX: Download
Kaiser S., Won J., Yaghy A., Ploner S., Jamil MU., Marmalidou A., Takahashi H., Hwang Y., Maier A., Fujimoto JG., Waheed N.:
Volumetric High-Resolution Optical Coherence Tomography Reveals Longitudinal Changes in Subretinal Drusenoid Deposits in Intermediate Dry Age-related Macular Degeneration
ARVO annual meeting 2024 (Seattle, WA, May 5, 2024 - May 9, 2024)
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2795385
URL: https://iovs.arvojournals.org/article.aspx?articleid=2795385
BibTeX: Download

2023

Journal Articles

Hwang Y., Won J., Yaghy A., Takahashi H., Girgis JM., Lam K., Chen S., Moult EM., Ploner S., Maier A., Waheed NK., Fujimoto JG.:
Retinal blood flow speed quantification at the capillary level using temporal autocorrelation fitting OCTA [Invited]
In: Biomedical Optics Express 14 (2023), p. 2658-2677
ISSN: 2156-7085
DOI: 10.1364/BOE.488103
BibTeX: Download

Conference Contributions

Ploner S., Won J., Schottenhamml J., Girgis J., Lam K., Waheed N., Fujimoto J., Maier A.:
A Spatiotemporal Illumination Model for 3d Image Fusion in Optical Coherence Tomography
IEEE International Symposium on Biomedical Imaging (Cartagena, April 18, 2023 - April 21, 2023)
In: 2023 IEEE 20th International Symposium on Biomedical Imaging 2023
DOI: 10.1109/ISBI53787.2023.10230526
BibTeX: Download
Ploner S., Won J., Yaghy A., Lam K., Girgis JM., Schottenhamml J., Husvogt L., Waheed NK., Fujimoto JG., Maier A.:
Advanced volume rebuilding overcomes quilting, stretching, and banding image artifacts in orthogonally-scanned OCT
Arvo Annual Meeting 2023 (New Orleans)
In: Investigative Ophthalmology & Visual Science 2023
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2789933
BibTeX: Download
Schottenhamml J., Würfl T., Ploner S., Husvogt L., Maier A., Hohberger B., Mardin C.:
Impact of acquisition area on deep-learning-based glaucoma detection in OCTA
ARVO annual meeting 2023 (New Orleans)
In: Investigative Ophthalmology & Visual Science 2023
BibTeX: Download
Ploner S., Chen S., Won J., Husvogt L., Breininger K., Schottenhamml J., Fujimoto JG., Maier A.:
Abstract: A Spatiotemporal Model for Precise and Efficient Fully-automatic 3D Motion Correction in OCT
Bildverarbeitung für die Medizin Workshop, BVM 2023 (Braunschweig, DEU, July 2, 2023 - July 4, 2023)
In: Thomas M. Deserno, Heinz Handels, Andreas Maier, Klaus Maier-Hein, Christoph Palm, Thomas Tolxdorff (ed.): Informatik aktuell 2023
DOI: 10.1007/978-3-658-41657-7_57
BibTeX: Download
Won J., Yaghy A., Ploner S., Takahashi H., Reimann MK., Girgis JM., Lam K., Hwang Y., Chen S., Maier A., Waheed NK., Fujimoto JG.:
Motion correction and volume merging of ultrahigh resolution OCT enable 3D visualization and longitudinal tracking of hyperreflective foci
ARVO imaging in the eye (New Orleans, April 22, 2023 - April 22, 2023)
In: Investigative Ophthalmology & Visual Science 2023
URL: https://iovs.arvojournals.org/article.aspx?articleid=2791149
BibTeX: Download

2022

Journal Articles

Wagner F., Thies M., Denzinger F., Gu M., Patwari M., Ploner S., Maul N., Pfaff L., Huang Y., Maier A.:
Trainable joint bilateral filters for enhanced prediction stability in low-dose CT
In: Scientific Reports 12 (2022), Article No.: 17540
ISSN: 2045-2322
DOI: 10.1038/s41598-022-22530-4
BibTeX: Download
Wagner F., Thies M., Gu M., Huang Y., Pechmann S., Patwari M., Ploner S., Aust O., Uderhardt S., Schett G., Christiansen SH., Maier A.:
Ultra low‐parameter denoising: Trainable bilateral filter layers in computed tomography
In: Medical Physics 49 (2022), p. 5107-5120
ISSN: 0094-2405
DOI: 10.1002/mp.15718
BibTeX: Download

Conference Contributions

Ploner S., Chen S., Won J., Husvogt L., Breininger K., Schottenhamml J., Fujimoto J., Maier A.:
A Spatiotemporal Model for Precise and Efficient Fully-Automatic 3D Motion Correction in OCT
25th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2022 (Singapore, SGP, September 18, 2022 - September 22, 2022)
In: Linwei Wang, Qi Dou, P. Thomas Fletcher, Stefanie Speidel, Shuo Li (ed.): Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2022
DOI: 10.1007/978-3-031-16434-7_50
BibTeX: Download
Ploner S., Chen S., Moult E., Husvogt L., Schottenhamml J., Waheed NK., Fujimoto JG., Maier A.:
Ultrahigh resolution OCT, volume merging, and advanced signal reconstruction improve visualization of the RPE-Bruch's complex
In: Investigative Ophthalmology & Visual Science, Rockville: 2022
URL: https://iovs.arvojournals.org/article.aspx?articleid=2782224
BibTeX: Download
Schottenhamml J., Würfl T., Ploner S., Husvogt L., Hohberger B., Fujimoto JG., Maier A.:
Unsupervised OCT Denoising using speckle split
ARVO annual meeting 2022 (Denver)
In: INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ROCKVILLE: 2022
DOI: 10.1038/s41598-023-37324-5
BibTeX: Download

2021

Journal Articles

Schottenhamml J., Wuerfl T., Mardin S., Ploner S., Husvogt L., Hohberger B., Lämmer R., Mardin C., Maier A.:
Glaucoma classification in 3 x 3 mm en face macular scans using deep learning in a different plexus
In: Biomedical Optics Express 12 (2021), p. 7434-7444
ISSN: 2156-7085
DOI: 10.1364/BOE.439991
URL: https://opg.optica.org/boe/fulltext.cfm?uri=boe-12-12-7434&id=464725
BibTeX: Download
Ploner S., Kraus M., Moult EM., Husvogt L., Schottenhamml J., Yasin Alibhai A., Waheed NK., Duker JS., Fujimoto JG., Maier A.:
Efficient and high accuracy 3-D OCT angiography motion correction in pathology
In: Biomedical Optics Express 12 (2021), p. 125-146
ISSN: 2156-7085
DOI: 10.1364/BOE.411117
URL: https://www.osapublishing.org/boe/fulltext.cfm?uri=boe-12-1-125
BibTeX: Download
Husvogt L., Ploner S., Chen S., Stromer D., Schottenhamml J., Alibhai AY., Moult E., Waheed NK., Fujimoto JG., Maier A.:
Maximum a posteriori signal recovery for optical coherence tomography angiography image generation and denoising
In: Biomedical Optics Express 12 (2021), p. 55-68
ISSN: 2156-7085
DOI: 10.1364/BOE.408903
URL: https://www.osapublishing.org/boe/fulltext.cfm?uri=boe-12-1-55&id=444277
BibTeX: Download
Schottenhamml J., Moult EM., Ploner S., Chen S., Novais E., Husvogt L., Duker JS., Waheed NK., Fujimoto JG., Maier A.:
OCT-OCTA segmentation: Combining structural and blood flow information to segment bruch's membrane
In: Biomedical Optics Express 12 (2021), p. 84-99
ISSN: 2156-7085
DOI: 10.1364/BOE.398222
BibTeX: Download

Conference Contributions

Husvogt L., Abu-Qamar O., Levine E., Schottenhamml J., Ploner S., Breininger K., Moult E., Waheed NK., Fujimoto JG., Maier A.:
Applying nnU-Net to the segmentation of microaneurysms in OCTA data in patients with non-proliferative diabetic retinopathy
ARVO Annual Meeting 2021
URL: https://iovs.arvojournals.org/article.aspx?articleid=2773716
BibTeX: Download
Schottenhamml J., Ploner S., Husvogt L., Mardin S., Hohberger B., Mardin C., Maier A.:
Deep Learning Glaucoma Classification in enface OCTA scans of the human macular region
ARVO Annual Meeting 2021
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2773575
URL: https://iovs.arvojournals.org/article.aspx?articleid=2773575
BibTeX: Download
Ploner S., Schottenhamml J., Moult E., Husvogt L., Waheed NK., Duker JS., Fujimoto JG., Maier A.:
Improved OCT motion correction in pathology using advanced eye motion modeling
In: INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ROCKVILLE: 2021
BibTeX: Download
Husvogt L., Ploner S., Chen S., Stromer D., Schottenhamml J., Alibhai Y., Moult E., Waheed NK., Fujimoto JG., Maier A.:
Abstract: Maximum A-posteriori Signal Recovery for OCT Angiography Image Generation
German Workshop on Medical Image Computing, 2021 (Regensburg, March 7, 2021 - March 9, 2021)
In: Christoph Palm, Heinz Handels, Klaus Maier-Hein, Thomas M. Deserno, Andreas Maier, Thomas Tolxdorff (ed.): Informatik aktuell 2021
DOI: 10.1007/978-3-658-33198-6_61
BibTeX: Download

2020

Journal Articles

Moult EM., Alibhai AY., Lee BK., Yu Y., Ploner S., Chen S., Maier A., Duker JS., Waheed NK., Fujimoto JG.:
A Framework for Multiscale Quantitation of Relationships Between Choriocapillaris Flow Impairment and Geographic Atrophy Growth
In: American Journal of Ophthalmology (2020)
ISSN: 0002-9394
DOI: 10.1016/j.ajo.2019.12.006
BibTeX: Download

Conference Contributions

Chen S., Abu-Qamar O., Moult E., Ploner S., Lee B., Maier A., Waheed N., Fujimoto J.:
Ultrahigh-Resolution Optical Coherence Tomography Investigation of Age-Related Changes in the Photoreceptors, Retinal Pigment Epithelium and Bruch's Membrane
Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) (Online, May 1, 2020 - May 7, 2020)
In: INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ROCKVILLE: 2020
BibTeX: Download
Schottenhamml J., Ploner S., Moult E., Duker JS., Waheed NK., Fujimoto JG., Maier A.:
Fully automatic separation of three capillary plexuses in the macular region
Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) (ONLINE, May 1, 2020 - May 7, 2020)
In: INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ROCKVILLE: 2020
BibTeX: Download
Chen S., Abu-Qmar O., Moult E., Lee B., Ploner S., Maier A., Waheed NK., Fujimoto JG.:
Investigating Subtle Structural Changes in Eyes with Age-Related Macular Degeneration: A Pilot Study Using Ultrahigh-Resolution Optical Coherence Tomography
Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) (ONLINE, May 1, 2020 - May 7, 2020)
In: INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ROCKVILLE: 2020
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2769686
URL: https://iovs.arvojournals.org/article.aspx?articleid=2769686
BibTeX: Download
Ploner S., Schottenhamml J., Moult EM., Waheed NK., Duker JS., Fujimoto JG., Maier A.:
3-D tracing of capillaries through three retinal vascular plexuses toward their closest superficial artery and vein in OCT angiography volumes
ARVO annual meeting 2020
In: Investigative Ophthalmology & Visual Science 2020
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2770859
URL: https://iovs.arvojournals.org/article.aspx?articleid=2770859
BibTeX: Download
Husvogt L., Ploner S., Stromer D., Schottenhamml J., Moult E., Fujimoto JG., Maier A.:
Compressed sensing for optical coherence tomography angiography volume generation
International workshop on Algorithmen - Systeme - Anwendungen, 2020 (Berlin, March 15, 2020 - March 17, 2020)
In: Thomas Tolxdorff, Thomas M. Deserno, Heinz Handels, Andreas Maier, Klaus H. Maier-Hein, Christoph Palm (ed.): Informatik aktuell 2020
DOI: 10.1007/978-3-658-29267-6_19
BibTeX: Download
Fu WL., Husvogt L., Ploner S., Fujimoto JG., Maier A.:
Modularization of deep networks allows cross-modality reuse: lesson learnt
International workshop on Algorithmen - Systeme - Anwendungen, 2020 (Berlin, March 15, 2020 - March 17, 2020)
In: Thomas Tolxdorff, Thomas M. Deserno, Heinz Handels, Andreas Maier, Klaus H. Maier-Hein, Christoph Palm (ed.): Informatik aktuell 2020
DOI: 10.1007/978-3-658-29267-6_61
BibTeX: Download
Nau MA., Nau M., Moult EM., Fujimoto JG., Maier A.:
Open source simulation of fixational eye drift motion in oct scans: Towards better comparability and accuracy in retrospective OCT motion correction
International workshop on Algorithmen - Systeme - Anwendungen, 2020 (Berlin, March 15, 2020 - March 17, 2020)
In: Thomas Tolxdorff, Thomas M. Deserno, Heinz Handels, Andreas Maier, Klaus H. Maier-Hein, Christoph Palm (ed.): Informatik aktuell 2020
DOI: 10.1007/978-3-658-29267-6_56
BibTeX: Download

2019

Journal Articles

Syben-Leisner C., Michen M., Stimpel B., Seitz S., Ploner S., Maier A.:
Technical Note: PYRO-NN: Python reconstruction operators in neural networks
In: Medical Physics 46 (2019), p. 5110-5115
ISSN: 0094-2405
DOI: 10.1002/mp.13753
URL: https://aapm.onlinelibrary.wiley.com/doi/abs/10.1002/mp.13753
BibTeX: Download
Moult EM., Alibhai AY., Rebhun CB., Lee B., Ploner S., Schottenhamml J., Husvogt L., Baumal CR., Witkin AJ., Maier A., Duker JS., Rosenfeld P., Waheed NK., Fujimoto JG.:
Spatial Distribution of Choriocapillaris Impairment in Eyes with Choroidal Neovascularization Secondary to Age-Related Macular Degeneration
In: Retina-The Journal of Retinal and Vitreous Diseases (2019)
ISSN: 0275-004X
DOI: 10.1097/IAE.0000000000002556
URL: https://journals.lww.com/retinajournal/Abstract/publishahead/SPATIAL_DISTRIBUTION_OF_CHORIOCAPILLARIS.96058.aspx
BibTeX: Download

Conference Contributions

Ploner S., Schottenhamml J., Moult EM., Husvogt L., Alibhai AY., Waheed NK., Duker JS., Fujimoto JG., Maier A.:
Correction of artifacts from misregistered B-scans in orthogonally scanned and registered OCT angiography
ARVO Annual Meeting 2019 (Vancouver, B.C., Canada, April 28, 2019 - May 2, 2019)
In: Investigative Ophthalmology & Visual Science 2019
URL: https://iovs.arvojournals.org/article.aspx?articleid=2745781&resultClick=1
BibTeX: Download
Schottenhamml J., Ploner S., Moult EM., Duker JS., Waheed NK., Fujimoto JG., Maier A.:
Deep learning based hybrid OCT-OCTA segmentation of Bruch's membrane in pathology
Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) (Vancouver, April 28, 2019 - May 2, 2019)
In: INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ROCKVILLE: 2019
BibTeX: Download
Moult E., Alibhai AY., Lee B., Ploner S., Maier A., Duker JS., Waheed NK., Fujimoto JG.:
Relationship between CC Impairment and GA Growth: An Optical Coherence Tomography Angiography Study
Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) (Vancouver, April 28, 2019 - May 2, 2019)
In: INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ROCKVILLE: 2019
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Husvogt L., Ploner S., Moult EM., Alibhai AY., Schottenhamml J., Duker JS., Waheed NK., Fujimoto JG., Maier A.:
Using Medical Image Reconstruction Methods for Denoising of OCTA Data
ARVO Annual Meeting 2019 (Vancouver, B.C., Canada, April 28, 2019 - May 2, 2019)
In: Investigative Ophthalmology & Visual Science 2019
URL: https://iovs.arvojournals.org/article.aspx?articleid=2746928&resultClick=1
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Geimer T., Ploner S., Keall P., Bert C., Maier A.:
Respiratory Deformation Estimation in X-Ray-Guided IMRT Using a Bilinear Model
Workshop on Bildverarbeitung fur die Medizin, 2019 (Lübeck, DEU, March 17, 2019 - March 19, 2019)
In: Thomas M. Deserno, Andreas Maier, Christoph Palm, Heinz Handels, Klaus H. Maier-Hein, Thomas Tolxdorff (ed.): Informatik aktuell 2019
DOI: 10.1007/978-3-658-25326-4_70
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2018

Journal Articles

Rebhun CB., Moult EM., Ploner S., Moreira-Neto C., Alibhai AY., Schottenhamml J., Lee B., Choi W., Rifai FA., Tams M., Husvogt L., Baumal CR., Witkin AJ., Maier A., Rosenfeld P., Duker JS., Fujimoto JG., Waheed NK.:
Analyzing relative blood flow speeds in choroidal neovascularization using variable interscan time analysis OCT angiography
In: Ophthalmology Retina 2 (2018), p. 306-319
ISSN: 2468-7219
DOI: 10.1016/j.oret.2017.08.013
URL: https://www.sciencedirect.com/science/article/abs/pii/S2468653017303561?via=ihub
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Book Contributions

Husvogt L., Ploner S., Maier A.:
Optical Coherence Tomography
In: Andreas MaierStefan SteidlVincent ChristleinJoachim Hornegger (ed.): Medical Imaging Systems, Cham: Springer, 2018, p. 251-261 (Lecture Notes in Computer Science book series (LNCS), Vol.11111)
ISBN: 978-3-319-96520-8
DOI: 10.1007/978-3-319-96520-8_12
URL: https://link.springer.com/chapter/10.1007/978-3-319-96520-8_12
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Conference Contributions

Ploner S., Riess C., Schottenhamml J., Moult EM., Waheed NK., Fujimoto JG., Maier A.:
A Joint Probabilistic Model for Speckle Variance, Amplitude Decorrelation and Interframe Variance (IFV) Optical Coherence Tomography Angiography
Bildverarbeitung für die Medizin 2018 - Algorithmen - Systeme - Anwendungen (Erlangen, March 11, 2018 - March 13, 2018)
In: Proceedings des Workshops Bildverarbeitung für die Medizin 2018 - Algorithmen - Systeme - Anwendungen 2018
DOI: 10.1007/978-3-662-56537-7_37
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Schottenhamml J., Moult EM., Novais EA., Kraus M., Lee B., Choi W., Ploner S., Husvogt L., Lu CD., Yiu P., Rosenfeld P., Duker JS., Maier A., Waheed NK., Fujimoto JG.:
OCT-OCTA Segmentation
Bildverarbeitung für die Medizin 2018 (Erlangen, March 11, 2018 - March 13, 2018)
In: Maier, Andreas Deserno, Thomas Martin Handels, Heinz Maier-Hein, Klaus C., Palm Tolxdorff, Thomas (ed.): Bildverarbeitung für die Medizin 2018, Berlin: 2018
DOI: 10.1007/978-3-662-56537-7_76
URL: https://link.springer.com/chapter/10.1007/978-3-662-56537-7_76
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Ploner S., Kraus MF., Husvogt L., Moult EM., Alibhai AY., Schottenhamml J., Geimer T., Rebhun CB., Lee B., Baumal CR., Waheed NK., Duker JS., Fujimoto JG., Maier A.:
3-D OCT Motion Correction Efficiently Enhanced with OCT Angiography
ARVO annual meeting 2018
In: Investigative Ophthalmology & Visual Science 2018
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2694583
URL: https://iovs.arvojournals.org/article.aspx?articleid=2694583
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2017

Journal Articles

Cole ED., Moult EM., Dang S., Choi W., Ploner S., Lee B., Louzada RN., Novais EA., Schottenhamml J., Husvogt L., Maier A., Fujimoto JG., Waheed NK., Duker JS.:
The Definition, Rationale, and Effects of Thresholding in OCT Angiography
In: Ophthalmology Retina 1/2017 (2017), p. 435-447
ISSN: 2468-7219
DOI: 10.1016/j.oret.2017.01.019
URL: https://www.sciencedirect.com/science/article/abs/pii/S2468653017300283
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Rebhun CB., Moult EM., Novais EA., Moreira-Neto C., Ploner S., Louzada RN., Lee B., Baumal CR., Fujimoto JG., Duker JS., Waheed NK., Ferrara D.:
Polypoidal Choroidal Vasculopathy on Swept-Source Optical Coherence Tomography Angiography with Variable Interscan Time Analysis
In: Translational Vision Science & Technology 6 (2017)
ISSN: 2164-2591
DOI: 10.1167/tvst.6.6.4
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2017/Rebhun17-PCV.pdf
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Conference Contributions

Ploner S., Moult EM., Schottenhamml J., Husvogt L., Lu CD., Rebhun CB., Alibhai AY., Duker JS., Waheed NK., Maier A., Fujimoto JG.:
Hybrid OCT-OCTA Vessel Visualization for Projection-Free Display of the Intermediate and Deep Retinal Plexuses
ARVO Annual Meeting 2017 (Baltimore, MD, USA, May 7, 2017 - May 11, 2017)
In: Investigative Ophthalmology & Visual Science 2017
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2017/Ploner17-HOV.pdf
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Schottenhamml J., Moult EM., Novais EA., Kraus M., Lee B., Choi W., Ploner S., Husvogt L., Lu CD., Yiu P., Rosenfeld P., Duker JS., Maier A., Waheed NK., Fujimoto JG.:
OCT-OCTA Segmentation: a Novel Framework and an Application to Segment Bruch's Membrane in the Presence of Drusen
ARVO Annual Meeting 2017 (Baltimore, MD, USA, May 7, 2017 - May 11, 2017)
In: Investigative Ophthalmology & Visual Science 2017
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2017/Schottenhamml17-OSA.pdf
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Lee B., Moult EM., Ploner S., Alibhai AY., Rebhun CB., Moreira-Neto C., Husvogt L., Maier A., Wollstein G., Schuman J., Waheed NK., Duker JS., Fujimoto JG.:
Parallel Variable Interscan Time Analysis (VISTA) OCTA and en Face Doppler OCT of Optic Disc and Peripapillary Vasculature
ARVO Annual Meeting 2017 (Baltimore, MD, USA, May 7, 2017 - May 11, 2017)
In: Investigative Ophthalmology & Visual Science 2017
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2017/Lee17-PVI.pdf
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Yiu P., Moult EM., Ploner S., Lee B., Husvogt L., Maier A., Spaide RF., Duker JS., Waheed NK., Fujimoto JG.:
Smoothed and Resolved Thresholding (SmaRT-) Display: A New OCTA Display Technique to Resolve the Low Flow Ambiguity
ARVO Annual Meeting 2017 (Baltimore, MD, USA, May 7, 2017 - May 11, 2017)
In: Investigative Ophthalmology & Visual Science 2017
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2017/Yiu17-SAR.pdf
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Moult EM., Ploner S., Choi W., Lee B., Husvogt L., Lu CD., Novais EA., Cole ED., Potsaid BM., Duker JS., Hornegger J., Maier A., Waheed NK., Fujimoto JG.:
Visualizing microvascular flow variation in OCTA using variable interscan time analysis (VISTA)
SPIE BiOS (San Francisco, CA, USA, January 28, 2017 - February 2, 2017)
In: Proc. SPIE 10053, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI 2017
DOI: 10.1117/12.2254845
URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10053/1/Visualizing-microvascular-flow-variation-in-OCTA-using-variable-interscan-time/10.1117/12.2254845.full?SSO=1
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Moreira-Neto C., Rebhun CB., Ploner S., Moult EM., Novais EA., Alibhai AY., Schottenhamml J., Louzada RN., Waheed NK., Witkin AJ., Baumal CR., Duker JS., Fujimoto JG., Ferrara D.:
Analysis of Polypoidal Choroidal Vasculopathy Using Swept Source Optical Coherence Tomography Angiography with Variable Interscan Time Analysis
ARVO Annual Meeting 2017 (Baltimore, MD, USA)
In: Investigative Ophthalmology & Visual Science, ARVO: 2017
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2017/Moreira-Neto17-AOP.pdf
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Despotovic I., Moult EM., Rebhun CB., Ploner S., Zacharia J., Alibhai AY., Moreira-Neto C., Lee B., Baumal CR., Rosenfeld P., Duker JS., Fujimoto JG., Waheed NK.:
Correlation of Vascular Impairment with Geographic Atrophy Progression Analyzed with Swept Source OCT Angiography and Variable Interscan Time Analysis
ARVO annual meeting 2017 (Baltimore)
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Moult EM., Ploner S., Rebhun CB., Alibhai AY., Lee B., Moreira-Neto C., Novais EA., Schottenhamml J., Husvogt L., Maier A., Rosenfeld P., Duker JS., Waheed NK., Fujimoto JG.:
Variable Interscan Time Analysis (VISTA-) Optical Coherence Tomography Angiography (OCTA) of Blood Flow Speeds in Eyes with Diabetic Retinopathy
ARVO Annual Meeting 2017 (Baltimore, MD, USA, May 7, 2017 - May 11, 2017)
In: Investigative Ophthalmology & Visual Science, ARVO: 2017
URL: https://iovs.arvojournals.org/article.aspx?articleid=2637998&resultClick=1
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Rebhun CB., Moult EM., Ploner S., Fareed R., Moreira-Neto C., Alibhai AY., Schottenhamml J., Lee B., Baumal CR., Rosenfeld P., Duker JS., Fujimoto JG., Waheed NK.:
Visualizing Relative Blood Flow Speeds in Choroidal Neovascularization Using Variable Interscan Time Analysis (VISTA-) Optical Coherence Tomography Angiography (OCTA)
ARVO Annual Meeting 2017 (Baltimore, MD, USA, May 7, 2017 - May 11, 2017)
In: Investigative Ophthalmology & Visual Science 2017
Open Access: https://iovs.arvojournals.org/article.aspx?articleid=2637740
URL: https://iovs.arvojournals.org/article.aspx?articleid=2637740
BibTeX: Download

2016

Journal Articles

Schottenhamml J., Moult EM., Ploner S., Lee B., Novais EA., Cole ED., Dang S., Lu CD., Husvogt L., Waheed NK., Duker JS., Hornegger J., Fujimoto JG.:
An Automatic, Intercapillary Area-based Algorithm for Quantifying Diabetes-related Capillary Dropout Using Optical Coherence Tomography Angiography
In: Retina (Philadelphia, Pa.) 36 (2016), p. S93-S101
ISSN: 1539-2864
DOI: 10.1097/IAE.0000000000001288
URL: https://www.ncbi.nlm.nih.gov/pubmed/28005667
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Moult EM., Waheed NK., Novais EA., Choi W., Lee B., Ploner S., Cole ED., Louzada RN., Lu CD., Rosenfeld P., Duker JS., Fujimoto JG.:
Swept-source optical coherence tomography angiography reveals choriocapillaris alterations in eyes with nascent geographic atrophy and drusen-associated geographic atrophy
In: Retina-The Journal of Retinal and Vitreous Diseases 36 (2016), p. S2-S11
ISSN: 0275-004X
DOI: 10.1097/IAE.0000000000001287
URL: https://journals.lww.com/retinajournal/Fulltext/2016/12001/SWEPT_SOURCE_OPTICAL_COHERENCE_TOMOGRAPHY.2.aspx
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Ploner S., Moult EM., Choi W., Waheed NK., Lee B., Novais EA., Cole ED., Potsaid B., Husvogt L., Schottenhamml J., Maier A., Rosenfeld P., Duker JS., Hornegger J., Fujimoto JG.:
Toward Quantitative Optical Coherence Tomography Angiography: Visualizing Blood Flow Speeds in Ocular Pathology Using Variable Interscan Time Analysis
In: Retina (Philadelphia, Pa.) 32 (2016), p. S118-S126
ISSN: 1539-2864
DOI: 10.1097/IAE.0000000000001328
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Conference Contributions

Schottenhamml J., Moult EM., Ploner S., Lee B., Lu CD., Husvogt L., Waheed NK., Duker JS., Hornegger J., Fujimoto JG.:
An automatic algorithm measuring the retinal intercapillary area to assess diabetic retinopathy
ARVO Annual Meeting 2016 (Seattle, WA, USA, May 1, 2016 - May 5, 2016)
In: Investigative Ophthalmology & Visual Science 2016
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2016/Schottenhamml16-AAA.pdf
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Ploner S., Moult EM., Waheed NK., Husvogt L., Schottenhamml J., Lee B., Hornegger J., Duker JS., Rosenfeld P., Fujimoto JG.:
Toward quantitative OCT angiography: visualizing flow impairment using variable interscan time analysis (VISTA)
ARVO Annual Meeting 2016 (Seattle, WA, USA, May 1, 2016 - May 5, 2016)
In: Investigative Ophthalmology & Visual Science 2016
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2016/Ploner16-TQO.pdf
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Stefan Ploner, M. Sc.

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Academic CV

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2022

Temporally resolved 3-D retinal blood flow quantification using advanced motion correction and signal reconstruction in optical coherence tomography angiography

2017

Joint Iterative Reconstruction and Motion Compensation for Optical Coherence Tomography Angiography

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2025

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2024

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2023

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2022

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2021

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2020

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2019

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2018

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2017

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2016

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