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目的 :观察二硝酸异山梨醇酯 (isoket)介入后铊 2 0 1(2 0 1TI)和99mTc 甲氧基异丁基异腈 (MIBI)双核素心肌断层显像检测梗死后存活心肌的敏感性及两种核素间显像结果的一致性。方法 :将 4 0例陈旧性心肌梗死(OMI)患者 ,分为A(12例 )、B(16例 )及C(12例 )三组 ,A、B组分别进行isoket介入后2 0 1TI和99mTc MIBI单核素显像 ,C组进行isoket介入后2 0 1TI及99mTc MIBI双核素心肌显像。结果 :A组摄取2 0 1TI后出现不同程度的灌注异常节段共 6 5个 ,平均得分为 9.7± 1.2。B组摄取99mTc MIBI后出现不同程度的灌注异常节段共 87个 ,平均得分 10 .8± 1.6。C组以不同核素能窗双核素显像后结果2 0 1TI心肌显像检出灌注异常节段共 4 2个 ,平均得分 5 .8± 0 .6 ;99mTc MIBI心肌显像检出灌注异常节段共 4 8个 ,平均得分 6 .1± 0 .8。A组与B及C组两种结果比较 ,均P >0 .0 5。结论 :两种核素对梗死后心肌存活力的评估一致性良好 ;双核素心肌断层显像对梗死后心肌存活力的评估与单核素心肌断层显像是一致的 ,两种显像的结合可提高诊断的准确性
OBJECTIVE: To observe the sensitivity of thallium 2 0 1 (201) and 99mTc methoxycin isonicotinate (MIBI) dual nuclei myocardial perfusion imaging in detection of viable myocardium infarction after isoketone dinitrate infusion and two The consistency of the nuclide imaging results. Methods: Forty patients with old myocardial infarction (OMI) were divided into three groups: A (12 cases), B (16 cases) and C (12 cases) 99mTc MIBI mononuclear imaging, C group after isoket intervention 2 0 1TI and 99mTc MIBI dual nucleus myocardial imaging. Results: A total of 65 perfusion abnormalities were found in group A after 201 days of ingestion, with an average score of 9.7 ± 1.2. In group B, 99mTc MIBI showed a total of 87 perfusion abnormalities with an average score of 10.8 ± 1.6. C group with different radionuclide imaging of nuclear nuclide imaging results after 2 0 1TI myocardial perfusion detected a total of 42 anomalous segments, with an average score of 5. 8 ± 0. 6; 99mTc MIBI myocardial perfusion imaging was detected abnormalities A total of 48 segments, with an average score of 6 .1 ± 0 .8. The results of A and B and C were compared, both P> 0.05. CONCLUSION: The two radionuclides have a good agreement with the assessment of myocardial viability after infarction. The assessment of myocardial viability after infarction with dual nuclide myocardial imaging is consistent with that of mononuclear myocardial imaging. The combination of the two imaging modalities Can improve the diagnostic accuracy