含服硝苯吡啶对99mTc-MIBI心肌显像的影响

为观察硝苯吡啶对＾９９ｍＴｃ－ＭＩＢＩ心肌断层显像的影响，把３５例冠心病患者分成硝苯吡啶组和硝酸甘油组，隔日行介入心肌断层显像，静注＾９９ｍＴｃ－ＭＩＢＩ后１ｈ和５ｈ时分别采集图象，分析结果显示硝苯吡啶组虽有４０．０％的心肌节段摄取较用药前改善，但１ｈ显像有３３个节段出现逆向性摄取减少，其中２９个节段５ｈ显像又恢复正常。硝酸甘油组有６９．５％心肌节段较用药前摄取改善，１ｈ显像未见有逆向性摄取减少，

Influence of nifedipine in 99mTc-MIBI myocardial imaging

To observe the influence of nifidipine(NIF) in 99mTc-MIBI myocardial tomography imaging. 35 patients with coronary artery disease were divided into NIF group and nitr oglycerine(NTC) group. 48 hours after rest imaging, each patient was administrated NIF or NTC sublingually, then myocardial imaging was performed at 1 and 5 hours after injection of 99mTc-MIBI, these imagings were compared and analyzed. In NIF group, 40.0% segments of low intake in rest imaging had improvement. But 33 segments at 1 hour imaging had lower intake than rest imaging, and 29 segments returned to normal at 5 hour. In NTC group, 6 9.5% segments of low intake in rest imaging had improvement. It was not seen at 1 hour that segments had lower intake than rest imaging. 99mTc-MIBI NIF myocardial tomography imaging revealed some myocardial segments had transient low intake at 1 hour imaging, the exact explaination requires more studies.