[Comparison of imaging characteristics of magnetic resonance myocardial delayed enhancement between ischemic and nonischemic myocardial diseases].
OBJECTIVE
To compare the imaging characteristics of magnetic resonance (MR) delayed enhancement between ischemic and nonischemic myocardial diseases.


METHODS
We retrospectively analyzed the imaging and clinical characteristics of 25 patients who had MR delayed enhancement.


RESULTS
Among the 25 cases, 19 cases were ischemic heart diseases, in which the delayed enhancement was subendocardium, non-transmural or transmural; two cases were hypertrophic cardiomyopathy, in which the delayed enhancement was midwall in the hypertrophic myocardium, strip- and patch-shaped; one case was dilated cardiomyopathy, in which the delayed enhancement was diffuse small midwall spots two cases was restrictive cardiomyopathy, in which the delayed enhancement was located in the area of the subendocardium both of the right and left ventricles; and one case was a mass of the lateral wall of the left ventricle, in which the delayed enhancement with a clumpy shape was shown.


CONCLUSIONS
MR myocardial delayed enhancement is not a specific sign of myocardial infarction of ischeminc heart disease. The differentiation of the etiology of the delayed enhancement relies upon both the MR images and the clinical history.
Lin
Song-Bai
SB
Special Medical Care Center, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
Zhang
Zhu-Hua
ZH
Li
Dong-Jing
DJ
Zhang
Shu-Yang
SY
Chen
Li-Bo
LB
Feng
Feng
F
Jin
Zheng-Yu
ZY