Detection of intracardiac shunt flow in atrial septal defect using a real-time two-dimensional color-coded Doppler flow imaging system and comparison with contrast two-dimensional echocardiography.
Detection of intracardiac shunt flow in atrial septal defect using a real-time two-dimensional color-coded Doppler flow imaging system and comparison with contrast two-dimensional echocardiography.
复制标题
使用实时二维彩色编码多普勒血流成像系统检测房间隔缺损的心内分流，并与对比二维超声心动图进行比较。
DOI：
10.1016/0002-9149(85)90862-8
复制
发表时间：
1985
影响因子：
2.8
通讯作者：
C. Kawai
中科院分区：
文献类型：
--
作者：
Y. Suzuki;H. Kambara;K. Kadota;S. Tamaki;A. Yamazato;R. Nohara;G. Osakada;C. Kawai
为了评价新研制的实时二维彩色多普勒血流成像系统(D-2DE)对分流血流的无创检测价值，对20例患者进行了检查，其中继发孔型房间隔缺损(ASD)患者10例，对照组10例。并与声学造影二维超声心动图(C-2DE)进行比较。彩色多普勒2DE显示流向探头的血流为红色，远离探头的血流为蓝色，根据多普勒频率的不同，每种阴影加绿色。在ASD患者中，D-2DE清晰地显示了10例患者中7例左向右分流。7例患者中5例右房同一部位C-2DE显影为阴性。因此，D-2DE检测左向右分流血流的灵敏度比C-2DE高(从50%提高到70%)。但D-2DE的特异度(90%)略低于C-2DE(100%)。超声心动图显示10例ASD患者中9例左侧心脏显影阳性，但多普勒2DE不能显示所有ASD患者的右向左分流血流。因此，D-2DE可用于检测ASD患者的左向右分流血流。
To evaluate the noninvasive detection of shunt flow using a newly developed real-time 2-dimensional color-coded Doppler flow imaging system (D-2DE), 20 patients were examined, including 10 with secundum atrial septal defect (ASD) and 10 control subjects. These results were compared with contrast 2-dimensional echocardiography (C-2DE). Doppler 2DE displayed the blood flow toward the transducer as red and the blood flow away from the transducer as blue in 8 shades, each shade adding green according to the degree of variance in Doppler frequency.In the patients with ASD, D-2DE clearly visualized left-to-right shunt flow in 7 of 10 patients. In 5 of these 7 patients, C-2DE showed a negative contrast effect in the same area of the right atrium. Thus, D-2DE increased the sensitivity over C-2DE for detecting left-to-right shunt flow (from 50% to 70%). However, the specificity was slightly less in D-2DE (90%) than C-2DE (100%). Doppler 2DE could not visualize right-to-left shunt flow in all patients with ASD, though C-2DE showed a positive contrast effect in the left-sided heart in 9 of 10 patients with ASD. Thus, D-2DE is clinically useful for detecting left-to-right shunt flow in patients with ASD.