[Clinical characterizations of patients with isolated left ventricular noncompaction diagnosed by magnetic resonance imaging].
OBJECTIVE
To observe the clinical and magnetic resonance imaging (MRI) characterizations in patients with isolated left ventricular noncompaction (LVNC).


METHODS
All patients were examined by MRI. The LV was divided into 9 segments for localizing non compacted segments. A new value, C/VS, was introduced to assess the degree of non compacted segments.


RESULTS
A total of 31 patients was diagnosed as LVNC (23 males; 39.9 +/- 15.7 years). Palpitations presented in 74% of patients, abnormal EKG found in 93.5% of patients, 33.3% segments were affected and most commonly in the mid-ventricular and apical segments, 84% of patients had > or = 2 affected segments. Right ventricle was affected in 2 patients. Left ventricular thrombi were detected in 3 patients. LVEF was 37.2% +/- 16.5% (14% - 70%), N/C was 3.6 +/- 1.4 (2.2 - 9.2) and C/VS was 0.43 +/- 0.11 (0.27 - 0.69).


CONCLUSIONS
Cardiac MRI allows accurate LVNC assessment.
Yan
Chao-Wu
CW
Department of Radiology, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
Zhao
Shi-Hua
SH
Lu
Min-Jie
MJ
Jiang
Shi-Liang
SL
Wei
Yun-Qing
YQ
Li
Shi-Guo
SG
Qi
Xiao-Ou
XO
Zhang
Yan
Y
Liu
Yu-Qing
YQ
D000293:Adolescent; D000328:Adult; D009202:Cardiomyopathies / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis*; D055815:Young Adult