Výsledky vyhledávání

Comparison of the VetGate and SurgiGATE 1.0 computer assisted surgery systems for insertion of cortex screws across the distal phalanx in horses – an in vitro study

Autor: Jörg A Auer, Cornelia S Schwarz, Tobias Rudolph, Jens Kowal

Publikováno v: Pferdeheilkunde Equine Medicine. 33:120-126

The In vitro experimental study on five cadaveric equine limb pairs (n=10) was conducted to evaluate the functionality and precision of the VetGate Computer Assisted Surgery (CAS) system during insertion of two 4.5mm cortex screws across virtual mids

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58877acc6ea16b7a80181899b0406008
https://doi.org/10.21836/pem20170202

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Feasibility of support vector machine learning in age-related macular degeneration using small sample yielding sparse optical coherence tomography data

Autor: Sandrine Zweifel, Jens Kowal, Pascal W. Hasler, Peter Maloca, Balaskas Konstantinos, Catherine A Egan, João Emanuel Ramos de Carvalho, Adnan Tufail, Tjebo F. C. Heeren, Gwenole Quellec, Hendrik P. N. Scholl

Publikováno v: Acta ophthalmologica. 97(5)

Purpose A retrospective pilot study is conducted to demonstrate the utility of a novel support vector machine learning (SVML) algorithm in a small three-dimensional (3D) sample yielding sparse optical coherence tomography (spOCT) data for the automat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42e23732ea1951ee609e3cace851b552
https://pubmed.ncbi.nlm.nih.gov/30839157

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Time-Resolved Ultra-High Resolution Optical Coherence Tomography for Real-Time Monitoring of Selective Retina Therapy

Autor: Sebastian Wolf, Jens Kowal, Andreas Ebneter, Patrick Steiner, Raphael Sznitman, Carsten Framme, Martin Zinkernagel, Boris Považay, Ralf Brinkmann, Christoph Meier, Lieselotte Berger

Publikováno v: Investigative ophthalmology & visual science
Investigative Ophthalmology & Visual Science
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE

Purpose Selective retina therapy (SRT) has shown great promise compared to conventional retinal laser photocoagulation as it avoids collateral damage and selectively targets the retinal pigment epithelium (RPE). Its use however is challenging in term

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08e50c1a836423c9283668b7804a957b

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Microcystic Macular Edema

Autor: Jens Kowal, Mathias Abegg, Martin S. Zinkernagel, Pascal Dufour, Sebastian Wolf, Muriel Dysli

Publikováno v: Ophthalmology. 121:142-149

Purpose To investigate retrograde axonal degeneration for its potential to cause microcystic macular edema (MME), a maculopathy that has been previously described in patients with demyelinating disease. To identify risk factors for MME and to expand

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32a87b64204def7416e506c55fbe2146
https://doi.org/10.1016/j.ophtha.2013.08.045

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Graph-Based Multi-Surface Segmentation of OCT Data Using Trained Hard and Soft Constraints

Autor: Jens Kowal, Pascal Dufour, S. De Dzanet, S. Schroder, Ute E. K. Wolf-Schnurrbusch, Lala Ceklic, Hannan Abdillahi

Publikováno v: IEEE Transactions on Medical Imaging. 32:531-543

Optical coherence tomography (OCT) is a well-established image modality in ophthalmology and used daily in the clinic. Automatic evaluation of such datasets requires an accurate segmentation of the retinal cell layers. However, due to the naturally l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c09ce118a1419c7b87a435b8e8b69c7
https://doi.org/10.1109/tmi.2012.2225152

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Intraoperative Localization of Tantalum Markers for Proton Beam Radiation of Choroidal Melanoma by an Opto-Electronic Navigation System: A Novel Technique

Autor: Michael H. Foerster, Jens Kowal, Jens Heufelder, Nikolaos E. Bechrakis, Christoph Amstutz

Publikováno v: International Journal of Radiation Oncology*Biology*Physics. 82:1361-1366

Purpose External beam proton radiation therapy has been used since 1975 to treat choroidal melanoma. For tumor location determination during proton radiation treatment, surgical tantalum clips are registered with image data. This report introduces th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6e4c791fbaaffe27113fe364dd9f89a
https://doi.org/10.1016/j.ijrobp.2011.04.049

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Real-Time Multimodal Retinal Image Registration for a Computer-Assisted Laser Photocoagulation System

Autor: Christoph A. Amstutz, A. Martina Broehan, Jens Kowal, Tobias Rudolph

Publikováno v: IEEE Transactions on Biomedical Engineering. 58:2816-2824

An algorithm for the real-time registration of a retinal video sequence captured with a scanning digital ophthal moscope (SDO) to a retinal composite image is presented. This method is designed for a computer-assisted retinal laser photocoagulation s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61167706b5a7efc30c7721931e0f3f6d
https://doi.org/10.1109/tbme.2011.2159860

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Automated detection of the osseous acetabular rim using three-dimensional models of the pelvis

Autor: Jens Kowal, Timo M. Ecker, Simon D. Steppacher, Moritz Tannast, Marc Puls, Klaus A. Siebenrock

Publikováno v: Computers in Biology and Medicine. 41:285-291

An automated algorithm for detection of the acetabular rim was developed. Accuracy of the algorithm was validated in a sawbone study and compared against manually conducted digitization attempts, which were established as the ground truth. The latter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::144430266c7a0812ac3a90ccb73c2af4
https://doi.org/10.1016/j.compbiomed.2011.03.004

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