Evaluation of Modified Look-Locker Inversion Recovery and Arrhythmia-Insensitive Rapid Cardiac T1 Mapping Pulse Sequences in Cardiomyopathy Patients

被引：3

作者：

Robison, Sean ^{[1
]}

Hong, KyungPyo ^{[2
]}

Kim, Daniel ^{[2
]}

Lloyd, Rachel ^{[3
]}

Ramchand, Jay ^{[3
,4
]}

Hornsey, Emma ^{[1
]}

Srivastava, Piyush ^{[3
,4
]}

Smith, Gerard ^{[1
,5
,6
]}

Kearney, Leighton ^{[3
,4
]}

Lim, Ruth ^{[1
,5
,6
]}

机构：

[1] Univ Melbourne, Melbourne Med Sch, Austin Hlth Dept, Dept Radiol,Austin Hosp, Heidelberg, Vic, Australia

[2] Northwestern Univ, Dept Radiol, Chicago, IL 60611 USA

[3] St Vincents Hosp, Dept Cardiol, Melbourne, Vic, Australia

[4] Univ Melbourne, Austin Hlth, Dept Med, Heidelberg, Vic, Australia

[5] Univ Melbourne, Dept Radiol, Parkville, Vic, Australia

[6] Univ Melbourne, Dept Surg, Parkville, Vic, Australia

来源：

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY | 2018年 / 42卷 / 05期

基金：

美国国家卫生研究院;

关键词：

arrhythmia-insensitive rapid; cardiac; MOLLI; MRI; T1; mapping; CARDIOVASCULAR MAGNETIC-RESONANCE; MYOCARDIAL EXTRACELLULAR VOLUME; DIASTOLIC HEART-FAILURE; DILATED CARDIOMYOPATHY; CONTRACTILE FUNCTION; BLOOD-FLOW; MOLLI; FIBROSIS; T-1; DYSFUNCTION;

D O I：

10.1097/RCT.0000000000000746

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：

Objective The aim of this study was to compare the performance of arrhythmia-insensitive rapid (AIR) and modified Look-Locker inversion recovery (MOLLI) T1 mapping in patients with cardiomyopathies. Methods In 58 patients referred for clinical cardiac magnetic resonance imaging at 1.5 T, we compared MOLLI and AIR native and postcontrast T1 measurements. Two readers independently analyzed myocardial and blood T1 values. Agreement between techniques, interreader agreement per technique, and intrascan agreement per technique were evaluated. Results The MOLLI and AIR T1 values were strongly correlated (r(2) = 0.98); however, statistically significantly different T1 values were derived (bias 80 milliseconds, pooled data, P < 0.01). Both techniques demonstrated high repeatability (MOLLI, r(2) = 1.00 and coefficient of repeatability [CR] = 72 milliseconds; AIR, r(2) = 0.99 and CR = 184.2 milliseconds) and produced high interreader agreement (MOLLI, r(2) = 1.00 and CR = 51.7 milliseconds; AIR, r(2) = 0.99 and CR = 183.5 milliseconds). Conclusions Arrhythmia-insensitive rapid and MOLLI sequences produced significantly different T1 values in a diverse patient cohort.

引用

页码：732 / 738

页数：7

共 34 条

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