AIM: To compare the clinical performance of 4 spectraldomain(SD) optical coherence tomography angiography(OCTA) systems: AngioVueTM, AngioPlexTM, Spectralis? OCTA, AngioScan, and 1 swept-source(SS) OCTA SS OCT AngioTM...AIM: To compare the clinical performance of 4 spectraldomain(SD) optical coherence tomography angiography(OCTA) systems: AngioVueTM, AngioPlexTM, Spectralis? OCTA, AngioScan, and 1 swept-source(SS) OCTA SS OCT AngioTM. METHODS: Twenty-seven undilated right eyes of 27 participants underwent OCTA examination using five different systems respectively for both 3×3 and 6×6 mm2 scan pattern(Spectralis OCTA for 3×3 mm2 scan only). Image quality, including vessel valid visibility and the number of motion artifacts, and acquisition time were evaluated. Repeated measures analysis of variance(ANOVA) with Bonferroni's post-test and Friedman test with Dunn's posttest were used to compare measurements.RESULTS: The age of the subjects was 28.19±5.55 y(range, 23-49 y). The spherical equivalent refraction was-2.55±1.84 D(range, 0.00 to-5.25 D). Significant difference was observed in the evaluation of vessel valid visibility(Angio Vue the highest: 0.111±0.031 for 3×3 mm2 scan and 0.128±0.020 for 6×6 mm2 scan), number of motion artifacts(AngioVue the fewest: 0.778±1.086 for 3×3 mm2 scan and 0.333±0.620 for 6×6 mm2 scan) and acquisition time(AngioPlex the shortest: 8.537±1.921 s for 3×3 mm2 scan and 8.298±1.741 s for 6×6 mm2 scan; all P<0.001). CONCLUSION: There is poor agreement of measurements among systems. AngioVue provides images with the highest vessel valid visibility and the fewest motion artifacts. AngioPlex achieves the shortest acquisition.展开更多
基金Supported by National Key Research and Development Program for Precision Medicine of China (No.2016YFC0904800)
文摘AIM: To compare the clinical performance of 4 spectraldomain(SD) optical coherence tomography angiography(OCTA) systems: AngioVueTM, AngioPlexTM, Spectralis? OCTA, AngioScan, and 1 swept-source(SS) OCTA SS OCT AngioTM. METHODS: Twenty-seven undilated right eyes of 27 participants underwent OCTA examination using five different systems respectively for both 3×3 and 6×6 mm2 scan pattern(Spectralis OCTA for 3×3 mm2 scan only). Image quality, including vessel valid visibility and the number of motion artifacts, and acquisition time were evaluated. Repeated measures analysis of variance(ANOVA) with Bonferroni's post-test and Friedman test with Dunn's posttest were used to compare measurements.RESULTS: The age of the subjects was 28.19±5.55 y(range, 23-49 y). The spherical equivalent refraction was-2.55±1.84 D(range, 0.00 to-5.25 D). Significant difference was observed in the evaluation of vessel valid visibility(Angio Vue the highest: 0.111±0.031 for 3×3 mm2 scan and 0.128±0.020 for 6×6 mm2 scan), number of motion artifacts(AngioVue the fewest: 0.778±1.086 for 3×3 mm2 scan and 0.333±0.620 for 6×6 mm2 scan) and acquisition time(AngioPlex the shortest: 8.537±1.921 s for 3×3 mm2 scan and 8.298±1.741 s for 6×6 mm2 scan; all P<0.001). CONCLUSION: There is poor agreement of measurements among systems. AngioVue provides images with the highest vessel valid visibility and the fewest motion artifacts. AngioPlex achieves the shortest acquisition.
