Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Clinical Investigation
ECG-Edit Function in Multidetector-Row Computed Tomography Coronary Arteriography for Patients With Arrhythmias
Hideyuki MatsutaniTomonari SanoTakeshi KondoHitomi MoritaTakehiro AraiTakako SekineShinichi TakaseAkitsugu OidaHiroshi FukazawaMasahiko SugutaMakoto KondoTakahide KodamaTadaaki OriharaNorikazu YamadaMasaharu TsuyukiJagat Narula
Author information
JOURNALS FREE ACCESS

2008 Volume 72 Issue 7 Pages 1071-1078

Details
Abstract

Background ECG-gating is necessary for cardiac computed tomography, but is not suitable for arrhythmias, so the aim of this study was to evaluate the usefulness of the ECG-edit function for this purpose. Methods and Results Of 1,221 patients undergoing 64-row multidetector-row computed tomography coronary angiography (coronary MDCT), 123 patients (28 atrial fibrillation (Af), 39 premature atrial contractions (PAC), 42 premature ventricular contractions (PVC), 3 PAC + PVC, 10 sinus arrhythmias (SA), and a second-degree atrioventricular block (2°AVB)) had arrhythmias necessitating the ECG-edit function. Short R-R interval was deleted and mid-diastolic phases were selected from the long R-R intervals using the "R+absolute time" method. In the present study, the reconstructed images were evaluated using a triple-grade scale A-C, representing excellent, acceptable, and unacceptable image quality. Image quality, categorized as A, B and C, respectively, was 50%, 36% and 14% for the 28 patients with Af; 56%, 36% and 8% for the 39 PAC patients, and 65%, 33% and 2% in the 42 PVC patients. None of the scans of the PAC + PVC, SA, and 2°AVB patients was ranked as C. Conclusions The ECG-edit function is useful for reconstructing coronary MDCT images in many arrhythmias, and provides clinically acceptable images in most cases. (Circ J 2008; 72: 1071 - 1078)

Information related to the author
© 2008 THE JAPANESE CIRCULATION SOCIETY
Previous article Next article
feedback
Top