Retinal Laser Lesion Visibility in Simultaneous Ultra-High Axial Resolution Optical Coherence Tomography
| العنوان: | Retinal Laser Lesion Visibility in Simultaneous Ultra-High Axial Resolution Optical Coherence Tomography |
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| المؤلفون: | Boris Povazay, Patrick Steiner, Christoph Meier, Volker Enzmann, Jens Kowal |
| المصدر: | Steiner, Patrick; Enzmann, Volker; Meier, Christoph; Povazay, Boris; Kowal, Horst Jens (2014). Retinal Laser Lesion Visibility in Simultaneous Ultra-High Axial Resolution Optical Coherence Tomography. IEEE Photonics Journal, 6(6), pp. 1-11. IEEE 10.1109/JPHOT.2014.2374594 <http://dx.doi.org/10.1109/JPHOT.2014.2374594Test> IEEE Photonics Journal, Vol 6, Iss 6, Pp 1-11 (2014) IEEE PHOTONICS JOURNAL |
| بيانات النشر: | IEEE, 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | lcsh:Applied optics. Photonics, Materials science, genetic structures, 610 Medicine & health, Fundus (eye), 01 natural sciences, law.invention, histology, 010309 optics, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Optics, Retinal laser therapy, Optical coherence tomography, law, 0103 physical sciences, medicine, lcsh:QC350-467, Laser power scaling, Electrical and Electronic Engineering, Image resolution, Retina, optical coherence tomography, medicine.diagnostic_test, business.industry, Visibility (geometry), lcsh:TA1501-1820, Retinal, Laser, 620 Engineering, Atomic and Molecular Physics, and Optics, eye diseases, medicine.anatomical_structure, chemistry, 030221 ophthalmology & optometry, sense organs, business, lcsh:Optics. Light, photocoagulation |
| الوصف: | Ex vivo porcine retina laser lesions applied with varying laser power (20 mW–2 W, 10 ms pulse, 196 lesions) are manually evaluated by microscopic and optical coherence tomography (OCT) visibility, as well as in histological sections immediately after the deposition of the laser energy. An optical coherence tomography system with 1.78 $\mu\hbox{m}$ axial resolution specifically developed to image thin retinal layers simultaneously to laser therapy is presented, and visibility thresholds of the laser lesions in OCT data and fundus imaging are compared. Optical coherence tomography scans are compared with histological sections to estimate the resolving power for small optical changes in the retinal layers, and real-time time-lapse scans during laser application are shown and analyzed quantitatively. Ultrahigh-resolution OCT inspection features a lesion visibility threshold 40–50 mW (17% reduction) lower than for visual inspection. With the new measurement system, 42% of the lesions that were invisible using state-of-the-art ophthalmoscopic methods could be detected. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e2fabcda9d3d6eac2d0b3e9accc24bbTest https://boris.unibe.ch/61132/1/steiner2014.pdfTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....8e2fabcda9d3d6eac2d0b3e9accc24bb |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |