Background To compare computed tomography coronary angiography (CTCA) with
intravascular ultrasound (IVUS) in quantitative and qualitative plaque assessment. Methods
Patients who underwent IVUS and CTCA within 3 months for suspected coronary artery
disease were retrospectively studied. Plaque volumes on CTCA were quantified manually
and with automated-software and were compared to IVUS. High-risk plaque features were
compared between CTCA and IVUS. Results There were 769 slices in 32 vessels (27 …

Kiran Munnur; Serial Coronary Plaque Assessment Using Cardiac CT no significant
difference between CTCA and IVUS. The classification of progression or regression of PAV
was concordant in 7 vessels between CTCA and IVUS. TAV change (− 17.98±28.8 versus
12.3±22.2; P= 0.26, r= 0.84) was strongly correlated with no significant difference between
CTCA and IVUS. Eight vessels had TAV regression as assessed on CTCA and IVUS. The
classification of progression or regression of TAV was concordant in all 10 vessels between …