On the IVUS plaque volume error in coronary arteries when neglecting curvature

Citation
Jch. Schuurbiers et al., On the IVUS plaque volume error in coronary arteries when neglecting curvature, ULTRASOUN M, 26(9), 2000, pp. 1403-1411
Citations number
23
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging
Journal title
ULTRASOUND IN MEDICINE AND BIOLOGY
ISSN journal
03015629 → ACNP
Volume
26
Issue
9
Year of publication
2000
Pages
1403 - 1411
Database
ISI
SICI code
0301-5629(200011)26:9<1403:OTIPVE>2.0.ZU;2-X
Abstract
Plaque volume determined by common linear 3-D IVUS analysis systems will sh ow under- or overestimation in curved vessel segments because these systems approximate the true 3-D transducer pull-back trajectory by a straight lin e. We developed a mathematical model that showed that the error is primaril y dependent on the curvature of the pull-back trajectory and not on vessel tortuosity. Furthermore, we measured this error in vivo in the coronary art eries of 15 patients, comparing the plaque volume using a true 3-D reconstr uction method with that of the linear approach. The in vivo plaque volume e rror ranged from 2.3% to -1.2% for 15 coronary segments with lengths rangin g from 38.8 to 89.1 mm (62.2 +/- 13 mm). The volume error introduced by lin ear 3-D IVUS analysis systems is dependent on the curvature of the pull-bac k trajectory. The error measured in vivo was small and inversely related to segment length. (C) 2001 World Federation for Ultrasound in Medicine & Bio logy.