Pulsed tissue Doppler imaging for the detection of myocardial ischaemia, a comparison with myocardial perfusion SPECT

被引:5
|
作者
Blomstrand, P [1 ]
Maret, E
Ohlsson, J
Scheike, M
Karlsson, JE
Säfström, K
Swahn, E
Engvall, J
机构
[1] Cty Hosp Ryhov, Dept Clin Physiol, S-55185 Jonkoping, Sweden
[2] Univ Hosp, Linkoping Heart Ctr, Linkoping, Sweden
关键词
dobutamine; echocardiography; myocardial perfusion SPECT; tissue Doppler;
D O I
10.1111/j.1475-097X.2004.00564.x
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
In order to compare the diagnostic ability of pulsed tissue Doppler and myocardial perfusion Single Photon Emission Computed Tomography (SPECT) in patients with a history of unstable coronary artery disease, CAD, 26 patients, 22 men and four women, age 47-76 years, were investigated in a prospective study, 5-10 day after an episode of unstable angina. Tissue Doppler and two-dimensional echocardiography were performed during dobutamine stress testing and myocardial scintigraphy after bicycle exercise and at rest. Patients with a normal SPECT had higher peak systolic velocity during dobutamine infusion, 18.9 +/- 4.1 cm s(-1), than patients with ischaemia, 12.2 +/- 3.8 cm s(-1) (P<0.001) or scar, 8.8 +/- 3.0 cm s(-1) (P<0.01). In a territorial analysis the difference in peak systolic velocity between areas with a normal and abnormal SPECT was less apparent. Failure to achieve greater than or equal to13 cm s(-1) in mean-peak systolic velocity was the most accurate criterion for detection of significant CAD on SPECT. We conclude that pulsed tissue Doppler can be used for objective quantification of left ventricular wall motion during dobutamine stress testing and for identification of patients with CAD on SPECT but not for identification of regional ischaemia.
引用
收藏
页码:289 / 295
页数:7
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