静点硝酸甘油介入~(99m)Tc-MIBI心肌SPECT识别存活心肌

为探讨静脉点滴硝酸甘油（ＮＴＧ）介入９９ｍＴｃ 甲氧基异丁基异腈（ＭＩＢＩ）心肌断层显像在心肌存活估测中的价值，对５７例心肌梗塞病人进行９９ｍＴｃ ＭＩＢＩ静态心肌显像及静脉点滴ＮＴＧ后显像。静态心肌显像有２０７／５１３（４０．４％）的节段灌注异常，ＮＴＧ滴注后有７５／２０７（３６．２％）的静态灌注异常节段得到改善。表明ＮＴＧ静脉介入能提高静态９９ｍＴｃ ＭＩＢＩ对存活心肌的检测率

Assessment of Myocardial Viability of Patients with Myocardial Infarction by ~(99m) Tc MIBI SPECT after Intravenous NTG Infusion

To compare the clinical effect rest ~(99m) Tc MIBI myocardial tomography with that folling intravenous infusion of nitroglycerin (NTG) in assessing myocardial viability. Rest~(99m) Tc MIBI myocardial tomograthy imagings were performed in 57 patients with myocardial infarction. There were 207(40.4%, of 513) segments of hypoperfusion in the rest imagings of the 57 patients. The improvements of perfusion after NTG infusions were revealed to be in 75 (36.2%) of the 207 segments. Combination of rest 99m Tc MIBI myocardial tomography imaging with intravenous NTG infusion could efficiently detect the residual survival myocardium in the patient with myocardial infarction.