ASSESSMENT OF LEFT-VENTRICULAR REGIONAL WALL-MOTION WITH BLOOD-POOL TOMOGRAPHY - COMPARISON OF 11CO PET WITH TC-99M SPECT

被引:8
作者
CROSS, SJ [1 ]
LEE, HS [1 ]
METCALFE, MJ [1 ]
NORTON, MY [1 ]
EVANS, NTS [1 ]
WALTON, S [1 ]
机构
[1] UNIV ABERDEEN, DEPT BIOMED PHYS, ABERDEEN AB9 2ZD, SCOTLAND
关键词
D O I
10.1097/00006231-199404000-00160
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
Left ventricular contraction is routinely assessed by radionuclide ventriculography. Although a planar image is conventionally used, tomography has been shown to improve the detection of wall motion abnormalities. A blood pool image is often used in positron emission tomography on which to superimpose metabolic tracers. Can this image also be used to assess left ventricular contraction? Nine healthy controls, mean (S.D.) age 55 (5) years, and 12 patients, mean (S.D.) age 61 (8) years, with normal, proven or suspected left ventricular damage underwent blood pool tomography with (CO)-C-11 positron emission tomography (PET) and Tc-99m single photon emission computed tomography (SPECT). A normal value of ejection fraction and range of phase were defined. The normal left ventricular ejection fraction was greater-than-or-equal-to 37% for PET and greater-than-or-equal-to 40% for SPECT. The ejection fractions obtained by the two methods in the patient group were positively correlated (r = 0.89, P < 0.001). Abnormalities of left ventricular contraction were detected in nine patients by PET and 10 patients by SPECT imaging. The discrepancy was in a patient with a previous inferior myocardial infarction. Blood pool imaging with (CO)-C-11 PET can be used to assess left ventricular ejection fraction and regional wall motion.
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页码:283 / 288
页数:6
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