title: [Clinical characterizations of patients with isolated left ventricular noncompaction diagnosed by magnetic resonance imaging].
abstract: 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.
authors.affiliation: Department of Radiology, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
authors.forename: Chao-Wu
authors.initials: CW
authors.lastname: Yan
authors.forename: Shi-Hua
authors.initials: SH
authors.lastname: Zhao
authors.forename: Min-Jie
authors.initials: MJ
authors.lastname: Lu
authors.forename: Shi-Liang
authors.initials: SL
authors.lastname: Jiang
authors.forename: Yun-Qing
authors.initials: YQ
authors.lastname: Wei
authors.forename: Shi-Guo
authors.initials: SG
authors.lastname: Li
authors.forename: Xiao-Ou
authors.initials: XO
authors.lastname: Qi
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yu-Qing
authors.initials: YQ
authors.lastname: Liu
mesh_terms: 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