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本文报告56例正常人和42例冠心痫患者(冠状动脉狭窄≥50%)的 T 波等电位图(BSPM)变化特点,探讨 T 波 BSPM 对冠脉狭窄的诊断和定位诊断价值。结果表明:正常人 T 波等电位图不受年龄和性别的影响,正区占居前胸和后背大部,形如“伞”状。负区仅位于右前胸和右肩部。左前降支狭窄时,T 波 BSPM 在左前胸锁骨中线附近出现,伸向正区的负区带或岛状负区。右冠脉狭窄的 T 波 BSPM,左前胸和后背部出现异常负区。而冠脒左旋支狭窄时,异常负区占居整个下胸背部,正区仪占居左前胸上部和左肩部,形如“碗”状。T 波 BSPM 异常检测冠心病慢性心肌缺血的灵敏发为81.0%,特异度为90.0%,准确度为83.9%。
In this paper, we report the changes of T wave potential isotherm (BSPM) in 56 normal subjects and 42 patients with coronary heart disease (coronary artery stenosis≥50%), and discuss the value of T-wave BSPM in the diagnosis and localization of coronary artery stenosis. The results show that the normal T-wave isoelectric map is not affected by age and gender, the positive area occupies the front chest and back most, shaped like “umbrella” -like. Negative zone is located only in the right chest and right shoulder. When the left anterior descending branch is stenosed, T-wave BSPM appears near the midline of the left anterior chest clavicle and extends toward the negative zone or the island-shaped negative zone in the positive zone. Right coronary stenosis of T wave BSPM, left anterior chest and back abnormal abnormalities. When the crown amidine L-stenosis, abnormal negative area occupy the lower chest and back, positive area instrument occupies left upper chest and left shoulder, shaped like “bowl” shape. The detection of T wave BSPM abnormality in CHD patients with chronic myocardial ischemia was 81.0%, specificity was 90.0% and accuracy was 83.9%.