title: Non-invasive assessment of atherosclerotic coronary lesion length using multidetector computed tomography angiography: comparison to quantitative coronary angiography.
abstract: Multidetector computed tomography angiography (CTA) provides information on plaque extent and stenosis in the coronary wall. More accurate lesion assessment may be feasible with CTA as compared to invasive coronary angiography (ICA). Accordingly, lesion length assessment was compared between ICA and CTA in patients referred for CTA who underwent subsequent percutaneous coronary intervention (PCI). 89 patients clinically referred for CTA were subsequently referred for ICA and PCI. On CTA, lesion length was measured from the proximal to the distal shoulder of the plaque. Quantitative coronary angiography (QCA) was performed to analyze lesion length. Stent length was recorded for each lesion. In total, 119 lesions were retrospectively identified. Mean lesion length on CTA was 21.4 ± 8.4 mm and on QCA 12.6 ± 6.1 mm. Mean stent length deployed was 17.4 ± 5.3 mm. Lesion length on CTA was significantly longer than on QCA (difference 8.8 ± 6.7 mm, P < 0.001). Moreover, lesion length visualized on CTA was also significantly longer than mean stent length (CTA lesion length-stent length was 4.2 ± 8.7 mm, P < 0.001). Lesion length assessed by CTA is longer than that assessed by ICA. Possibly, CTA provides more accurate lesion length assessment than ICA and may facilitate improved guidance of percutaneous treatment of coronary lesions.
authors.affiliation: Department of Cardiology, Leiden University Medical Center, Postal Zone: C5-P, P. O. Box 9600, 2333 ZA Leiden, The Netherlands.
authors.forename: J E
authors.initials: JE
authors.lastname: van Velzen
authors.forename: M A
authors.initials: MA
authors.lastname: de Graaf
authors.forename: A
authors.initials: A
authors.lastname: Ciarka
authors.forename: F R
authors.initials: FR
authors.lastname: de Graaf
authors.forename: M J
authors.initials: MJ
authors.lastname: Schalij
authors.forename: L J
authors.initials: LJ
authors.lastname: Kroft
authors.forename: A
authors.initials: A
authors.lastname: de Roos
authors.forename: J W
authors.initials: JW
authors.lastname: Jukema
authors.forename: J H C
authors.initials: JH
authors.lastname: Reiber
authors.forename: J D
authors.initials: JD
authors.lastname: Schuijf
authors.forename: J J
authors.initials: JJ
authors.lastname: Bax
authors.forename: E E
authors.initials: EE
authors.lastname: van der Wall
mesh_terms: D000368:Aged; D017023:Coronary Angiography / Q000379:methods*; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D003331:Coronary Vessels / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography; D062645:Percutaneous Coronary Intervention / Q000295:instrumentation; D058226:Plaque, Atherosclerotic; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D012189:Retrospective Studies; D015607:Stents