通过门控图像的计数率计算射血分数。
Ejection fraction by count rate from gated images.
作者信息
Green M V, Brody W R, Douglas M A, Borer J S, Ostrow H G, Line B R, Bacharach S L, Johnston G S
出版信息
J Nucl Med. 1978 Aug;19(8):880-3.
Left-ventricular (LV) ejection fraction (EF) was determined from ECG-gated images of the cardiac blood pool, by computing the relative change in net LV counts occurring in these images during systole. EFs obtained with this method gave satisfactory interobserver agreement in 20 studies reviewed by three independent observers (average r = 0.95) and also compared favorably with EFs obtained by contrast ventriculography in 39 patients (r = 0.92). The technique appears suitable for use in the evaluation of systolic function in patients with heart disease.
左心室（LV）射血分数（EF）通过计算心脏血池心电图门控图像在收缩期净LV计数的相对变化来确定。在三位独立观察者审查的20项研究中，用该方法获得的EF在观察者间一致性良好（平均r = 0.95），并且在39例患者中与通过造影剂心室造影获得的EF相比也具有优势（r = 0.92）。该技术似乎适用于评估心脏病患者的收缩功能。
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