title: Assessment of the coronary venous system using 256-slice computed tomography.
abstract: OBJECTIVE
  To investigate the coronary venous system and its relation to adjacent structures using 256-slice computed tomography (CT).
  
  
  METHODS
  The study consisted of 102 patients who underwent coronary CT angiography (CTA) using 256-slice CT. For each patient, the coronary venous system and its relation to adjacent structures were evaluated. The appropriate locations and diameters of the posterior interventricular vein (PIV), posterior vein of the left ventricle (PVLV) and the left marginal vein (LMV) were detected. The paired student's t test was used to evaluate the difference between the diameter of the coronary sinus (CS) ostium in anteroposterior direction and that in superoinferior direction.
  
  
  RESULTS
  The CS, great cardiac vein (GCV), PIV, and anterior interventricular vein (AIV) were visualized in all cases. It was possible to evaluate at least one main vein with adequate caliber and regular course for cardiac resynchronization therapy (CRT) in 96.1% of these cases. The diameter of the CS ostium in superoinferior direction (11.7±2.1 mm) was larger than that in anteroposterior direction (9.0±2.0 mm) (t = 13.511, P<0.05). For the majority of the cases, the CS-GCV was located above the level of the mitral valve annulus (MVA), while the left circumflex coronary artery (LCX) was coursed between the CS-GCV and the MVA. LMV had more intersection with the circumflex or circumflex marginal than PVLV.
  
  
  CONCLUSIONS
  256-slice CT provides superior noninvasive evaluation of the coronary venous system which has important clinical implications.
authors.affiliation: Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Diseases, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong, China; Department of Radiology, Yuhuangding Hospital, Yantai, Shandong, China.
authors.forename: Chunjuan
authors.initials: C
authors.lastname: Sun
authors.affiliation: Department of Radiology, Yuhuangding Hospital, Yantai, Shandong, China.
authors.forename: Yinghua
authors.initials: Y
authors.lastname: Pan
authors.affiliation: Department of Radiology, Yuhuangding Hospital, Yantai, Shandong, China.
authors.forename: Hongbo
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Radiology, Yuhuangding Hospital, Yantai, Shandong, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.affiliation: Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Diseases, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong, China.
authors.forename: Pei
authors.initials: P
authors.lastname: Nie
authors.affiliation: Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Diseases, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong, China.
authors.forename: Ximing
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Radiology, Yuhuangding Hospital, Yantai, Shandong, China.
authors.forename: Heng
authors.initials: H
authors.lastname: Ma
authors.affiliation: Department of Radiology, Yuhuangding Hospital, Yantai, Shandong, China.
authors.forename: Futao
authors.initials: F
authors.lastname: Huo
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography / Q000295:instrumentation / Q000379:methods*; D003331:Coronary Vessels / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000295:instrumentation / Q000379:methods*
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