ObjectiveTo evaluate the microcirculatory perfusion function of the thickened and adjacent myocardiumby quantitative analysis of myocardial contrast echocardiography（MCE）.MethodsA total of 32 patients with chest pain andchest distress were selected

there were 16 patients with thickened interventricular septum basal segment（IVSB）as case group

and 16 patients with normal left ventricular wall as control group. The peak intensity（A）

ascending slope（k）

peak time（T）

A*k and time-intensity curve of myocardial perfusion in IVSB and the interventricular septum middle segments（IVSM）betweentwo groups were analyzed and compared by quantitative analysis of MCE. The differences in the ratios of the parameters of IVSBand IVSM between the two groups were compared.ResultsThe T

A

k and A*k of IVSB in case group were statisticallysignificant compared with those of IVSB in control group and IVSM in two groups（all P<0.05）. There were statisticallysignificant differences in T and A*k of the IVSM between the case group and the control group（all P<0.05）

there werestatistically significant differences in the ratios of A

k

T and A*k of IVSB and IVSM between the case group and thecontrol group（all P<0.05）

and the time-intensity curve separation of case group was more distinct than that of IVSB andIVSM in control group.ConclusionMCE can early assess the segmental hypertrophic myocardium and adjacent myocardialmicrocirculation function quantitatively.