Comparison of gated single-photon emission computed tomography with magnetic resonance imaging for evaluation of left ventricular function in ischemic cardiomyopathy

被引:124
作者
Bax, JJ
Lamb, H
Dibbets, P
Pelikan, H
Boersma, E
Viergever, EP
Germano, G
Vliegen, HW
de Roos, A
Pauwels, EKJ
Van der Wall, EE
机构
[1] Leiden Univ, Med Ctr, Dept Cardiol, NL-2333 AA Leiden, Netherlands
[2] Leiden Univ, Med Ctr, Dept Radiol, NL-2333 AA Leiden, Netherlands
[3] Leiden Univ, Med Ctr, Dept Nucl Med, NL-2333 AA Leiden, Netherlands
[4] Univ Rotterdam Hosp, Dept Epidemiol & Stat, Rotterdam, Netherlands
[5] Cedars Sinai Med Ctr, Dept Nucl Med, Los Angeles, CA 90048 USA
关键词
D O I
10.1016/S0002-9149(00)01231-5
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
To perform a head-to-head comparison between magnetic resonance imaging (MRI) and gated single-photon emission computed tomography (SPECT) for the evaluation of left ventricular (LV) function (LV ejection fraction [LVEF], LV volumes, and regional wall motion) in patients with ischemic cardiomyopathy, we studied 22 patients with chronic coronary artery disease and LV dysfunction. Multislice, multiphase echoplanar MRI was performed with Philips Gyroscan ACS-NT15. image analysis was performed using the MASS software package to determine LV end-systolic volume, LV end-diastolic volume, and LVEF. The same parameters were calculated using quantitative gated SPECT software (QGS, Cedars-Sinai Medical Center). The different parameters were compared using linear regression, and correlation coefficients were calculated. Regional wall motion was also determined from both techniques, according to a 13-segment model and a 3-point scoring system (from 1 = normakinesia to 3 = akinesia or dyskinesia). A summed wall motion score was also calculated for MRI and gated SPECT. Good correlations were found between MRI and gated SPECT for all parameters: (1) summed wall motion score(MRI) versus summed wall motion score(SPECT): Y 0.74x + 8.0, r = 0.88, p <0.01; (2) LV end-systolic volume(MRI) versus LV end-systolic volume(SPECT): y = 0.94x - 12.3, r = 0.87, p <0.01; (3) LV end-diastolic volume(MRI) versus LV end-diastolic volume(SPECT): y 0.93x - 18.4, r = 0.84, p <0.01; and (4) LVEFMRI versus LVEFSPECT: Y = 0.97x + 0.68, r = 0.90, p <0.01. For regional wall motion, an exact agreement of 83% was found, with a kappa statistic of 0.77 (95% confidence intervals 0.71 to 0.83, SE 0.03), indicating essentially excellent agreement. Thus, close and significant correlations were observed for assessment of LVEF, LV volumes, and regional wall motion by MRI and gated SPECT in patients with ischemic cardiomyopathy. (C) 2000 by Excerpta Medica, Inc.
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收藏
页码:1299 / 1305
页数:7
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