静点硝酸甘油介入^(99m)Tc-MIBI心肌SPECT识别存活心肌

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

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。

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.