Authors: Kai Lin Donald M LloydJones Ying Liu Xiaoming Bi Biao Lu Debiao Li James C Carr
Publish Date: 2015/01/09
Volume: 31, Issue: 3, Pages: 621-627
Abstract
The aim of the present study was to determine the effects of the latency period on the performance of freebreathing coronary wall MRI With the approval of IRB 70 participants were recruited for coronary wall magnetic resonance imaging MRI and provided written informed consent In 35 subjects right coronary segments RCA1–3 were imaged first in the remaining subjects the left coronary segments LM and LAD1–3 were imaged first The images were classified into groups group 1 contained right coronary images from the subjects whose right coronary segments were imaged first and left coronary images from the subjects whose left coronary segments were imaged first Group 2 contained the other coronary segments The image scores ranked1–3 latency periods drift of the position of the navigator NAV scan efficiency were compared between image groups Image group 1 has higher scores 166 ± 055 vs 146 ± 051 shorter latency periods 3204 ± 424 vs 4422 ± 557 min lower drift in the location of the NAV 190 ± 127 mm vs 261 ± 171 mm and higher scan efficiency 327 ± 76 vs 299 ± 79 than group 2 Long latency periods have a significantly negative impact on the image quality of coronary wall MRI
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