Hrt versus oct optic disc area

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Webarea, 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. WebIn the present study, the mean difference between the HRT and the magnification-corrected OCT disc area was 0.48 mm 2 and the span of 95% limits of agreement was 2.04 mm 2 (1.5 to −0.54 mm 2 ). Consistent with previous studies, the OCT measured a larger disc area compared with the HRT.

Measurement of Optic Disc Size and Rim Area with Spectral …

WebPurpose: To evaluate the relationship between optic disc and retinal nerve fiber layer (RNFL) measurements obtained with the optical coherence tomography (OCT) and … Web2 okt. 2015 · There were no statistically significant differences between the second and the normal group in the OCT and HRT measurements. In Figures 1 – 5, we observe higher … how to download on toxicwap

Comparison of Optic Disc Parameters in Hyperopic and

Web9 jul. 2012 · PURPOSE To compare optic disc and neuroretinal rim area measurements from spectral-domain optical coherence tomography (SD-OCT) to those from confocal … 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. WebNov 2011 - Jul 20249 years 9 months. As a principal investigator at Devers Eye Institute (part of Legacy Research Institute), my role includes: … leather for sale in australia

Megalopapilla - EyeWiki

Web3 sep. 2013 · HRT-II and OCT optic disc parameters both reflect morphological changes of the optic disc. These current findings suggest that they can both detect glaucomatous … 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 how to download on to a firestickWeb10 mei 2012 · HRT overestimated optic disc area as compared to SD-OCT. A portion of the difference in HRT and SD-OCT disc measurements is due to HRT's magnification … how to download onto a flash drive stick

"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 … " - Hrt versus oct optic disc area

Hrt versus oct optic disc area

Optic Disk Cup - an overview ScienceDirect Topics

Web: HRT overestimated optic disc area as compared to SD-OCT. A portion of the difference in HRT and SD-OCT disc measurements is due to HRT's magnification correction … Web1 dag geleden · Unlike glaucoma, MP eyes have preserved optic disc area, rim area, and rim volume.1,3,10,11 The results of one study of 50 MP eyes and 80 normals eyes show rim area (mm2) of 1.96 +/- 0.36 in the megalopapilla group and 1.90 +/- 0.22 in the normal group (p-vaule = 0.25) and rim volume (mm3) of 0.15 +/- 0.07 in the megalopapilla group …

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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 … 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].

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 … http://www.esinbaser.com/wp-content/uploads/2024/12/OCT-HRT-Ophthalmologica.pdf

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... 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 …

WebPurpose: To compare optic disc measurements between the new Fourier-domain optical coherence tomography (RTVue-100) and the confocal scanning laser …

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 ... leather for sheathWebThe sensitivity of the two apparatuses increases with the depth of the defect but remains higher with the HRT. Conclusion There is not a difference between the two analyzers from - 2,1 Decibels The GPS appears to be an algorithm more sensitive than analysis RNFL on OCT in detecting preperimetric glaucoma. Volume92, Issues253 how to download on soundcloud on a pcWeb1 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)... leather for sharpeningWeb6 feb. 2007 · HRT data were mailed to each expert for analysis and sent back after drawing of the contourline defining the optic disc margin. Each expert was given the definition of the border of the optic disc defined as the inner edge of the scleral ring of Elschnig [ 7 ]. how to download on twitterWebComparison of Optic Disc Parameters in Hyperopic and Emmetropic Eyes of Healthy Children with HRT and OCT. In children, ONH of highly hyperopic eyes are smaller than … how to download on tubiWeb1 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 … how to download onto a flash drive windows 10Web1 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. leather for pitless adapter