Hrt versus oct optic disc area

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Web1 dec. 2009 · OCT values were consistently larger than HRT values for disc and cup area. Compared with HRT, small rim areas and volumes tended to be minimized by OCT, and …

Comparison of optic disc parameters measured by RTVue-100 …

Web4 mei 2014 · A descriptive analysis was made using Statistical Package for the Social Sciences (SPSS) for Windows, version 19.0 (SPSS Inc., Chicago, USA). Results: The mean optic disc area was 3.41 ± 0.47... Web9 jul. 2012 · A portion of the difference in HRT and SD-OCT disc measurements is due to HRT's magnification correction algorithm. Rim area measurements from HRT were … fl dmv learners permit

Significance of the disc damage likelihood scale objectively …

WebAbstract . Optical coherence tomography (OCT) can aid in the differential diagnosis of optic nerve head (ONH) elevation. Specific OCT hallmarks, such as “V contour” and a “lumpy-bumpy” appearance, associated with … Web21 dec. 2024 · Compared to the emmetropic group, following HRT parameters were significantly smaller in the hyperopic group: Disc area (1.41 vs. 1.68 mm2, p = 0.023), … WebThe optic disk, cup, and peripapillary crescent areas were measured by marking their outlines with a cursor. The projected area was automatically calculated by the computer (Fig. 1). The optic disk was defined by the inner border surrounding the nerve tissue; care was taken not to include the white peripapillary scleral ring. fl dmv insurance verification

Measurement of Optic Disc Size and Rim Area with Spectral …

Comparison of OCT and HRT findings among normal, normal …

Web9 jul. 2012 · A portion of the difference in HRT and SD-OCT disc measurements is due to HRT's magnification correction algorithm. Rim area measurements from HRT were larger than from SD-OCT, likely a result of different definitions for the reference plane and differences in disc area measurements. Disc parameters from the two devices are not … WebMore advanced imaging technology such as optic disc by optical coherence tomography (OCT) and Heidelberg Retina Tomograph (HRT) are often used and yield more specific measurements. Correcting for disc size also improves the sensitivity of imaging techniques such as the (HRT) in identifying abnormal discs [4]. fl dmv lake countyWebThe two instruments showed no difference in mean optic disc area measurements (1.98 ± 0.37 for HD-OCT vs 1.98 ± 0.39 mm for HRT-3, p=0.95). HD-OCT showed smaller rim … fl dmv law enforcement block

"Web1 jan. 2004 · Very large LoA were observed: -0.29 to 0.70 mm for OCT and HRT, -0.07 to 0.71 mm for OCT and funduscopy, and -0.29 to 0.53 mm for HRT and funduscopy. There was poor agreement (kappa < 0.4)... " - Hrt versus oct optic disc area

Hrt versus oct optic disc area

Comparison the results of HRT and OCT in big and small optic disc …

Web22 jun. 2011 · OCT values were consistently larger than HRT values for disc and cup area. Compared with HRT, small rim areas and volumes tended to be minimized by OCT, and … Web6 sep. 2011 · Optic Disc Basic Examination. When assessing a disc for glaucoma there are many subtle characteristics which should be examined. There are also various ways to examine the optic disc. For an assessment of the optic disc, there is “the 3 Cs” rule- the cup, colour and contour. The Contour. The borders of the optic disc should be clear and ...

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WebVery large LoA were observed: -0.29 to 0.70 mm for OCT and HRT, -0.07 to 0.71 mm for OCT and funduscopy, and -0.29 to 0.53 mm for HRT and funduscopy. There was poor … WebPurpose: To compare optic disc measurements between the new Fourier-domain optical coherence tomography (RTVue-100) and the confocal scanning laser …

Web16 dec. 2015 · Figure 3.2 illustrates the linear regression line between log neuroretinal rim area and optic disc area (marked “50%”). This is the “average” or “predicted” relationship between log neuroretinal rim area … Precise optic disc size measurements based on anatomically exact disc margins are fundamental for a correct assessment of glaucoma suspects. Computerized imaging techniques, such as confocal-scanning-laser-tomography (CSLT), which applies operator defined boundaries and optical … Meer weergeven Retrospectively, patients that simultaneously received CSLT and BMO-OCT scans were included. Their images were … Meer weergeven Area measurements (CSLT optic disc area vs. BMO-area by OCT) showed a systematic deviation with a divergent tendency with increasing size. Our mathematical equation offers an estimated comparison of … Meer weergeven Our study included 373 eyes with a median optic disc area by CSLT/ BMO-area by OCT of 2.56 mm2 and 2.19 mm2 respectively. … Meer weergeven

WebPolarimeter, HRT II Confocal Scanning Laser Ophthalmoscope, and Stratus OCT Optical Coherence Tomograph for the Detection of Glaucoma Felipe A. Medeiros, MD; Linda M. Zangwill, PhD; Christopher Bowd, PhD; Robert N. Weinreb, MD Objective: To compare the abilities of current com-mercially available versions of 3 optical imaging tech- WebThe mean disc area as measured by HRT3 was 2.21±0.46 mm 2, and the mean disc area of the KOWA was 2.80±0.55 mm 2 in POAG patients (P<0.001, Table 1). ... Garweg JG. …

WebOptical coherence tomography (OCT) signal strength correlated with the image quality parameters of the HRT and GDx. The percentage of good quality images was the lowest …

WebThe relationship between disc area and vertical cup-disc ratio (VCDR). A, Scatterplot of disc area vs VCDR. The dotted lines represent mean disc area − 1 SD (1.436 mm2) and mean disc area + 1 SD (2.109 mm2). These values were used to define disc area size. The disc area mean is unadjusted for age for this figure. fl dmv license plate searchWebNov 2011 - Jul 20249 years 9 months. As a principal investigator at Devers Eye Institute (part of Legacy Research Institute), my role includes: … cheesecake factory illinoisWeb1 jul. 1995 · Measurements of Optic Disk Size With HRT II, Stratus OCT, and Funduscopy Are Not Interchangeable 2006, American Journal of Ophthalmology Citation Excerpt : We tried to minimize this optical effect by keeping the position of the lens constant as the examiner rested his hand on the subject’s face rather than holding it in the air. cheesecake factory i driveWeb1 dag geleden · Optical coherence tomography (OCT) is a non-invasive, non-contact method giving a cross sectional image of the retina and its substructures in a real time mode and in vivo. 2 The resolution of the OCT image is at about 1–15 μm. It provides details 10 times superior to an ultrasound-B scan. cheesecake factory in bakersfield caWeb25 nov. 2024 · Optical coherence tomography (OCT), a quick and reproducible imaging technique using low coherence interferometry to produce cross-sectional images of the … cheesecake factory in arrowhead in peoria azWebarea, disc area, average cup/disc (C/D) ratio, vertical C/D ratio, and cup volume. e equivalent ONH parameters were also measured using the Cirrus OCT (Optic Disc Cube 200 × 200 scanpro-tocol; so ware version .) following a standard procedure described elsewhere. Le eye data were converted to a right eye format. fl dmv driving schoolWeb9 jul. 2012 · PURPOSE To compare optic disc and neuroretinal rim area measurements from spectral-domain optical coherence tomography (SD-OCT) to those from confocal … fl dmv holiday schedule