Myocardial viability: Breath-hold 3D MR imaging of delayed hyperenhancement with variable sampling in time

被引：47
|
作者：
Foo, TKF [1 ]
Stanley, DW
Castillo, E
Rochitte, CE
Wang, Y
Lima, JAC
Bluemke, DA
Wu, KC
机构：
[1] GE Med Syst, Appl Sic Lab, Baltimore, MD USA
[2] Johns Hopkins Univ, Dept Radiol, Baltimore, MD 21287 USA
[3] Johns Hopkins Univ, Dept Cardiol, Baltimore, MD 21287 USA
[4] Inst Coracao, Dept Cardiol, Sao Paulo, Brazil
[5] Peoples Hosp, Dept Radiol, Beijing, Peoples R China
来源：
RADIOLOGY | 2004年 / 230卷 / 03期
关键词：
heart; MR; magnetic resonance (MR); contrast enhancement; three-dimensional; myocardium; infarction;
D O I：
10.1148/radiol.2303021411
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
A method for visualizing myocardial infarction with a three-dimensional (3D) breath-hold gated acquisition was examined. By using variable sampling in time, whole heart coverage with a single volume acquisition was achieved in 24 heart beats. In a study of 35 patients, in whom 3D volume acquisition was compared with a two-dimensional (2D) acquisition, all regions of myocardial infarction were correctly identified at 3D examination. The mean imaging time for 12 section locations was 8.0 minutes +/- 3.0 with a 2D approach compared with 22 seconds +/- 4 with a 3D approach (P < .001). Advantages were also noted for infarct contrast-to-noise ratio: 60 +/- 37 for 3D versus 33 +/- 20 for 2D imaging (P < .001). No significant differences (P > .05) were noted at qualitative assessment of myocardial suppression, endocardial border visualization, respiratory and cardiac motion artifacts, or confidence of transmurality of the infarct. (C) RSNA, 2004.
引用
收藏
页码：845 / 851
页数：7
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