Simultaneous measurement of oxygen saturation and vessel diameter by imaging spectrometry

1996 ◽  
Author(s):  
Dietrich Schweitzer ◽  
Lutz Leistritz ◽  
Martin Hammer ◽  
Ulrich Bartsch ◽  
Mateusz Scibor ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Simultaneous Measurement ◽  
Vessel Diameter ◽  
Imaging Spectrometry

Retinal vessel oxygen saturation and vessel diameter in high myopia

2015 ◽  
Vol 35 (5) ◽  
pp. 562-569 ◽  
Author(s):  
Qishan Zheng ◽  
Yao Zong ◽  
Li Li ◽  
Xia Huang ◽  
Leilei Lin ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
High Myopia ◽  
Retinal Vessel ◽  
Vessel Diameter

Retinal Vessel Oxygen Saturation and Vessel Diameter in Inactive Graves Ophthalmopathy

2017 ◽  
Vol 33 (6) ◽  
pp. 459-465 ◽  
Author(s):  
Xiaonan Yang ◽  
Danping Huang ◽  
Siming Ai ◽  
Xuanwei Liang ◽  
Jing Zhao ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Retinal Vessel ◽  
Vessel Diameter ◽  
Graves Ophthalmopathy

scholarly journals Automation improves repeatability of retinal oximetry measurements

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0260120
Author(s):  
Robert Arnar Karlsson ◽  
Olof Birna Olafsdottir ◽  
Vedis Helgadottir ◽  
Soumaya Belhadj ◽  
Thorunn Scheving Eliasdottir ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Intraclass Correlation ◽  
Retinal Vessel ◽  
Vessel Diameter ◽  
Automated Measurements ◽  
Automation Of Measurements ◽  
Image Pairs ◽  
The Right ◽  
Measurement Area ◽  
Retinal Oximetry

Purpose Retinal oximetry is a technique based on spectrophotometry where images are analyzed with software capable of calculating vessel oxygen saturation and vessel diameter. In this study, the effect of automation of measurements of retinal vessel oxygen saturation and vessel diameter is explored. Methods Until now, operators have had to choose each vessel segment to be measured explicitly. A new, automatic version of the software automatically selects the vessels once the operator defines a measurement area. Five operators analyzed image pairs from the right eye of 23 healthy subjects with semiautomated retinal oximetry analysis software, Oxymap Analyzer (v2.5.1), and an automated version (v3.0). Inter- and intra-operator variability was investigated using the intraclass correlation coefficient (ICC) between oxygen saturation measurements of vessel segments in the same area of the retina. Results For semiautomated saturation measurements, the inter-rater ICC was 0.80 for arterioles and venules. For automated saturation measurements, the inter-rater ICC was 0.97 for arterioles and 0.96 for venules. For semiautomated diameter measurements, the inter-rater ICC was 0.71 for arterioles and venules. For automated diameter measurements the inter-rater ICC was 0.97 for arterioles and 0.95 for venules. The inter-rater ICCs were different (p < 0.01) between the semiautomated and automated version in all instances. Conclusion Automated measurements of retinal oximetry values are more repeatable compared to measurements where vessels are selected manually.

Retinal vessel diameter affects oxygen saturation measurements

2010 ◽  
Vol 88 ◽  
pp. 0-0
Author(s):  
SH HARDARSON ◽  
HR BERGVINSSON ◽  
E STEFANSSON
Keyword(s):  
Oxygen Saturation ◽  
Retinal Vessel ◽  
Vessel Diameter ◽  
Retinal Vessel Diameter

Retinal vessel oxygen saturation and vessel diameter in healthy individuals during high‐altitude exposure

2018 ◽  
Vol 97 (3) ◽  
pp. 279-286 ◽  
Author(s):  
Yiquan Yang ◽  
Diya Yang ◽  
Yunxiao Sun ◽  
Yuan Xie ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
High Altitude ◽  
Retinal Vessel ◽  
Vessel Diameter ◽  
Healthy Individuals ◽  
Altitude Exposure

Noninvasive Measurement of Retinal Oxygen Saturation and Vessel Diameter Changes in Diabetes Mellitus Patients

2020 ◽  
Vol 57 (5) ◽  
pp. 051701
Author(s):  
邹达 Zou Da ◽  
王珂欣 Wang Kexin ◽  
刘刚军 Liu Gangjun ◽  
任秋实 Ren Qiushi ◽  
卢闫晔 Lu Yanye
Keyword(s):  
Diabetes Mellitus ◽  
Oxygen Saturation ◽  
Vessel Diameter ◽  
Noninvasive Measurement
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