scholarly journals Comparison of time domain Stratus OCT and spectral domain SLO/OCT for assessment of macular thickness and volume

Eye ◽  
2008 ◽  
Vol 23 (11) ◽  
pp. 2071-2078 ◽  
Author(s):  
R Forte ◽  
G L Cennamo ◽  
M L Finelli ◽  
G de Crecchio
Keyword(s):  
Time Domain ◽  
Macular Thickness ◽  
Spectral Domain ◽  
Stratus Oct

scholarly journals Comparison of Central Macular Thickness Measured by Three OCT Models and Study of Interoperator Variability

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Zaïnab Bentaleb-Machkour ◽  
Eléonore Jouffroy ◽  
Muriel Rabilloud ◽  
Jean-Daniel Grange ◽  
Laurent Kodjikian
Keyword(s):  
Time Domain ◽  
Macular Thickness ◽  
Spectral Domain ◽  
Clinical Monitoring ◽  
Central Macular Thickness ◽  
Healthy Patient ◽  
Cirrus Oct ◽  
Significant Difference ◽  
Stratus Oct

Purpose. To compare central macular thickness (CMT) measurement on healthy patient using 3 different OCT devices by two operators.Methods. Prospective, monocentricstudy. Right eye’s central macular thickness (CMT) of 30 healthy patients has been measured three times using a time-domain (TD) OCT (Stratus OCT, Carl Zeiss Meditec, Dublin, Ca) and two spectral domain (SD) OCTs (Cirrus HD-OCT, Carl ZeissMeditec, Dublin, Ca) and 3D-OCT 1000 (Topcon, Tokyo, Japan) by two operators. Six measurements were taken randomly for each patient the same day.Results. No significant difference between measurements obtained by the two operators has been observed, whatever the studied OCT.Pvalue was 0.164, 0.193, and 0.147 for Stratus OCT, Cirrus HD-OCT and 3D-OCT, respectively. Mean CMT significantly differed from instrument to instrument (P<0.001) and was, respectively, 197 μm, 254 μm, and 236 μm using Stratus OCT, Cirrus HD-OCT, and 3D-OCT 1000. Using Cirrus OCT and 3D-OCT 1000, CMT was, respectively, 57 μm and 39 μm thicker than using Stratus OCT (P<0.05).Conclusions. Whatever the OCT device, on healthy patients CMT was not operator dependent. CMT measurements obtained by SD-OCTs are greater than those obtained by TD-OCT. These data imply that the different OCT devices cannot be used interchangeably in clinical monitoring.

scholarly journals Comparison of Time Domain and Spectral Domain Optical Coherence Tomography in Measurement of Macular Thickness in Macular Edema Secondary to Diabetic Retinopathy and Retinal Vein Occlusion

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Elham Hatef ◽  
Afsheen Khwaja ◽  
Zubir Rentiya ◽  
Mohamed Ibrahim ◽  
Matthew Shulman ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Diabetic Retinopathy ◽  
Macular Edema ◽  
Time Domain ◽  
Macular Thickness ◽  
Spectral Domain ◽  
Vein Occlusion ◽  
Spectralis Oct ◽  
Stratus Oct ◽  
Sd Oct

Purpose. To evaluate macular thickness, agreement, and intraclass repeatability in three optical coherence tomography (OCT) devices: the time domain (TD) Stratus OCT and two spectral domain (SD) OCTs, Spectralis and Cirrus SD-OCT, in eyes with macular edema secondary to diabetic retinopathy (DR) and retinal vein occlusion (VO).Methods. In a prospective observational study at a university-based retina practice, retinal thickness tomography was performed simultaneously for fifty-eight patients (91 eyes) with DR and VO employing a time domain and two spectral domain OCTs. Agreement in macular measurements was assessed by constructing Bland-Altman plots. Intraclass repeatability was assessed by intraclass correlation coefficients (ICCs).Results. Based on the Bland-Altman plots for central macular thickness, there was low agreement between the measurements of Cirrus SD-OCT and Stratus OCT, Spectralis OCT and Stratus OCT, as well as Spectralis OCT and Cirrus SD-OCT among DR and RVO patients. All three devices demonstrated high intraclass repeatability, with ICC of 98% for Stratus OCT, 97% for Cirrus SD-OCT, and 100% for Spectralis OCT among DR patients. The ICC was 97% for Stratus OCT, 79% for Cirrus SD-OCT, and 91% for Spectralis OCT among RVO patients.Conclusion. There are low agreements among interdevice measurements. However, intraclass repeatability is high in both TD and SD-OCT devices.

scholarly journals Time-domain versus spectral-domain optical coherence tomography: Findings in acute central serous chorioretinopathy*

2012 ◽  
Vol 71 (4) ◽  
Author(s):  
O. B. Selver ◽  
H. Aslankara ◽  
F. H. Oner ◽  
A. O. Saatci
Keyword(s):  
Time Domain ◽  
Central Serous Chorioretinopathy ◽  
Spectral Domain ◽  
Spectral Domain Oct ◽  
Department Of Ophthalmology ◽  
Spectral Oct ◽  
Neurosensory Retina ◽  
Acute Central Serous Chorioretinopathy ◽  
Ink Blot ◽  
Stratus Oct

Aims: To evaluate the optic coherence tomographic (OCT) features in acute central serous chorioretinopathy (ACSC) with time-domain or spectral-domain OCT at Dokuz Eylul University, Department of Ophthalmology, Izmir, Turkey.Subjects and Methods: Clinical data from the Department of Ophthalmology (of Dokuz Eylul University) including fluorescein angiography (FA) and OCT findings of 39 eyes of 34 patients with ACSC were retrospectively analyzed. Eleven eyes (Ntd =11) were examined with time-domain (Stratus OCT 3, Version 4.0) and 28 eyes (Nsd =28) with spectral-domain OCT (Heidelberg HRA2 Spectralis).Results: Of the sample of 34, twenty-four patients (70.6%) were men and 10 women (29.4%). FA demonstrated smokestack type hyperfluorescence in five eyes (12.8%), a round ink blot type hyperfluorescence in 32 eyes (82.1%) and diffuse leak-age in two (5.1%) eyes. Twenty-five eyes (64.1%) had only one leakage site, five eyes (12.8%) hadtwo leakage sites and nine eyes (23.1%) had three or more leakage sites. Detachment of the neurosensory retina was detected in 37 eyes (94.9%, 11 eyes with Stratus OCT and 26 eyes with Spectral OCT). Pigment epithelial detachment (PED) was detected in nine eyes (23.1%, one eye with Stratus OCT and eight eyes with Spectral OCT). Protrusion of the RPE layer was detected in 10 eyes (25.6%, all eyes with Spectral OCT). Both fibrinous exudates and bridging between the neurosensory retina and PED was detected with Spectral OCT in four eyes (10.2%). Retinal dipping was detected with Spectral OCT in two eyes (5.1%).Conclusion: Spectral-domain OCT seems to yield more information and depicts RPE layer protrusion, fibrinous exudates and bridging better when compared to conventional time-domain OCT.  (S Afr Optom 2012 71(4) 166-170)

Comparison of Macular Thickness Measurements between Time Domain and Spectral Domain Optical Coherence Tomography

2008 ◽  
Vol 49 (11) ◽  
pp. 4893 ◽  
Author(s):  
Christopher Kai-shun Leung ◽  
Carol Yim-lui Cheung ◽  
Robert N. Weinreb ◽  
Gary Lee ◽  
Dusheng Lin ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Time Domain ◽  
Macular Thickness ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Thickness Measurements

COMPARISON OF MACULAR THICKNESS MEASUREMENTS BETWEEN TIME-DOMAIN AND SPECTRAL-DOMAIN OPTICAL COHERENCE TOMOGRAPHIES IN EYES WITH AND WITHOUT MACULAR ABNORMALITIES

Retina ◽  
2011 ◽  
Vol 31 (4) ◽  
pp. 707-716 ◽  
Author(s):  
Daniele Giammaria ◽  
Alfonso Ioni ◽  
Beatrice Bartoli ◽  
Vincenza Cofini ◽  
Giacomo Pellegrini ◽  
...  
Keyword(s):  
Time Domain ◽  
Macular Thickness ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Thickness Measurements

Comparison between time-domain and spectral-domain OCT in the detection of retinal nerve fiber layer defects in glaucoma patients

2020 ◽  
Vol 1 (2) ◽  
pp. 89-94
Author(s):  
Jae Keun Chung ◽  
Keyword(s):  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Time Domain ◽  
Spectral Domain ◽  
Fiber Layer ◽  
Nerve Fiber Layer ◽  
Spectral Domain Oct ◽  
Spectralis Oct ◽  
Stratus Oct ◽  
Retinal Nerve Fiber

AIM: To compare, using the instruments’ built-in normative databases, the sensitivities of time-domain optical coherence tomography (Stratus OCT) and spectral-domain OCT (Spectralis OCT) in the detection of retinal nerve fiber layer (RNFL) defects in patients with glaucoma. METHODS: Fifty-two eyes of 35 patients with open angle glaucoma were included. A total of 69 hemiretinas with photographically identified RFNL defects were analyzed using the fast RNFL scan of Stratus OCT and the circle scan in Spectralis OCT. The OCT parameters were evaluated at 5% and 1% abnormality levels using the instruments’ built-in normative databases. The diagnostic sensitivity of each parameter was compared between the two devices. RESULTS: The Spectralis OCT detected RNFL defects within each quadrant more frequently than the Stratus OCT at both the 5% (79.7% vs 63.8%, P=0.01) and 1% (56.5% vs 40.6%, P=0.01) abnormality levels. At the 1% abnormality level, the sensitivity was significantly higher in the standard sector of Spectralis OCT than in the clock-hour sector of the Stratus OCT (68.1% vs 39.1%, P<0.01).

Sign in / Sign up

Export Citation Format

Share Document