Reproducibility of Coronary Optical Coherence Tomography for Lumen and Length Measurements in Humans (The CLI-VAR [Centro per la Lotta contro l'Infarto-VARiability] Study)

Impact of stent platform on longitudinal stent deformation: an in vivo frequency domain optical coherence tomography study

“…FD-OCT not only has higher spatial resolution but also is more reliable than angiography or intravascular ultrasound for length measurements. This is due to the fact that spatial resolution technology has a higher pullback speed that reduces the chance of motion artifact during the cardiac cycle [16,17]. In addition, threedimensional reconstruction of the FD-OCT data may allow for better visualization of the stent strut with stent deformation [10].…”

“…After stenting, stent length and minimum stent area were measured [15]. In vivo, actual stent length was measured using longitudinally reconstructed FD-OCT images [16,17]. The length of the stent according to the FD-OCT analysis was calculated as the distance between the first and last three-quarters circumferential appearance of stent struts.…”

Technical Considerations and Practical Guidance for Intracoronary Optical Coherence Tomography

“…8 OCT, similar to IVUS, can provide highly accurate and reproducible lumen area measurements. 9 The relationships between OCT-derived MLA, IVUS-derived MLA, and FFR have also been examined. 10 The optimal cutoff to predict an FFR less than or equal to 0.80 was an OCT-derived MLA threshold less than or equal to 1.95 mm 2 , which provided a sensitivity of 82%, specificity of 67%, positive predictive value of 68%, and negative predictive value of 80%.…”

Percutaneous Coronary Intervention Planning and Optimization with Optical Coherence Tomography

“…The reproducibility of lumen area and length measurements obtained by OCT has been demonstrated repeatedly. [19][20][21][22] In the prospective multicenter study, OPUS-CLASS (OCT Compared With IVUS in a Coronary Lesion Assessment) Fourier domain-OCT was compared with quantitative coronary angiography and IVUS in 100 consecutive patients to assess the relative accuracy of MLA and minimal lumen diameter measurements. 21 OCT underestimated the MLA by approximately 9% compared with IVUS, but OCT was significantly more accurate in measuring the actual phantom lumen area (P<.001), suggesting that Fourier domain -OCT is superior with respect to real measurements.…”