OBJECTIVE: To determine the accuracy of dual-source CT (DSCT) to quantify coronary stenosis compared to intravascular ultrasound (IVUS) and quantitative coronary angiography (QCA). METHODS: 21 patients (23 vessels) were examined with DSCT, IVUS and invasive coronary angiography. Coronary minimal luminal diameter (MLD) and area (MLA) were measured in cross-sectional multi-planar reformatted images perpendicular to the vessel long-axis. The vessel cross-sectional area stenosis (MLA/CSA ratio) was calculated. DSCT results were compared with IVUS and QCA. RESULTS: A good correlation between DSCT and IVUS was noted for diameter and area stenosis (r=0.69 and r=0.73), with an overestimation of MLD stenosis by DSCT (+9.1%) and an underestimation of MLA stenosis (-5.8%). For MLD and MLA, high correlation coefficients (r=0.78 and r=0.90, respectively) were found between DSCT and IVUS; and the bias was almost zero (-0.41 mm and +0.1mm(2), respectively). The correlation between DSCT and QCA was moderate (r=0.60) for MLD stenosis with minor overestimation by DSCT (+4.0%) and moderate (r=0.59) for MLD (bias, +0.01 mm). The cross-sectional area stenosis showed a moderate correlation (r=0.59) between DSCT and IVUS (+0.00). CONCLUSIONS: DSCT allows accurate quantification of coronary stenosis as compared to IVUS. An excellent correlation was found for the MLA between DSCT and IVUS.
OBJECTIVE: To determine the accuracy of dual-source CT (DSCT) to quantify coronary stenosis compared to intravascular ultrasound (IVUS) and quantitative coronary angiography (QCA). METHODS: 21 patients (23 vessels) were examined with DSCT, IVUS and invasive coronary angiography. Coronary minimal luminal diameter (MLD) and area (MLA) were measured in cross-sectional multi-planar reformatted images perpendicular to the vessel long-axis. The vessel cross-sectional area stenosis (MLA/CSA ratio) was calculated. DSCT results were compared with IVUS and QCA. RESULTS: A good correlation between DSCT and IVUS was noted for diameter and area stenosis (r=0.69 and r=0.73), with an overestimation of MLD stenosis by DSCT (+9.1%) and an underestimation of MLA stenosis (-5.8%). For MLD and MLA, high correlation coefficients (r=0.78 and r=0.90, respectively) were found between DSCT and IVUS; and the bias was almost zero (-0.41 mm and +0.1mm(2), respectively). The correlation between DSCT and QCA was moderate (r=0.60) for MLD stenosis with minor overestimation by DSCT (+4.0%) and moderate (r=0.59) for MLD (bias, +0.01 mm). The cross-sectional area stenosis showed a moderate correlation (r=0.59) between DSCT and IVUS (+0.00). CONCLUSIONS: DSCT allows accurate quantification of coronary stenosis as compared to IVUS. An excellent correlation was found for the MLA between DSCT and IVUS.
Authors: Stefan B Puchner; Maros Ferencik; Pal Maurovich-Horvat; Masataka Nakano; Fumiyuki Otsuka; Hans-Ulrich Kauczor; Renu Virmani; Udo Hoffmann; Christopher L Schlett Journal: Eur Radiol Date: 2014-09-03 Impact factor: 5.315
Authors: Marc Dewey; Carlos E Rochitte; Mohammad R Ostovaneh; Marcus Y Chen; Richard T George; Hiroyuki Niinuma; Kakuya Kitagawa; Roger Laham; Klaus Kofoed; Cesar Nomura; Hajime Sakuma; Kunihiro Yoshioka; Vishal C Mehra; Masahiro Jinzaki; Sachio Kuribayashi; Michael Laule; Narinder Paul; Arthur J Scholte; Rodrigo Cerci; John Hoe; Swee Yaw Tan; Frank J Rybicki; Matthew B Matheson; Andrea L Vavere; Andrew E Arai; Julie M Miller; Christopher Cox; Jeffrey Brinker; Melvin E Clouse; Marcelo Di Carli; João A C Lima; Armin Arbab-Zadeh Journal: J Cardiovasc Comput Tomogr Date: 2021-05-12
Authors: Christoph A Karlo; Sebastian Leschka; Paul Stolzmann; Nicola Glaser-Gallion; Simon Wildermuth; Hatem Alkadhi Journal: Insights Imaging Date: 2012-05-01