Reevaluation of cardiac neuronal function: Compari son with

为了便于了解心脏神经元的功能，我们将MIBG成像估计的参数与心脏PET研究获得的定量突触前和突触后功能参数进行比较。MIBG心肌摄取与PET估计的突触前功能密切相关。区域心肌分析显示PET突触前功能比MIBG摄取更同质分布。此外，PET估计的突触后（受体）功能与心肌MIBG洗脱密切相关，但与MIBG心肌摄取无关。这些比较研究可能有助于更好地了解各种心肌MIBG参数。

In order to facilitate understanding of cardiac ne uronal function, the parameters estimated by MIBG imaging was compared with qua ntitative presynaptic and postsynaptic functional parameters obtained by cardia c PET studies. MIBG myocardial uptake was closely correlated with presynaptic f unction estimated by PET. Regional myocardial analysis indicated that more homo genous distribution on PET presynaptic function than MIBG uptake. Furthermore, postsynaptic (receptor) function estimated by PET closely correlated with MIBG washout from the myocardium but not MIBG myocardial uptake. These comparative s tudies may help better understanding of variousmyocardial MIBG parameters.