Usefulness of previsualization of the cardiac venous system by 64-slice computed tomography in patients with heart failure underwent cardiac resynchronization therapy.
- Author:
Wei HUA
1
;
Li-gang DING
;
Shu ZHANG
;
Ke-ping CHEN
;
Jin WANG
;
Fang-zheng WANG
Author Information
- Publication Type:Journal Article
- MeSH: Aged; Cardiac Pacing, Artificial; Cardiac Resynchronization Therapy; Coronary Angiography; Female; Heart Failure; diagnostic imaging; therapy; Humans; Male; Middle Aged; Tomography, Spiral Computed
- From: Chinese Journal of Cardiology 2010;38(7):610-613
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the value of 64-slice computed tomography (MDCT) in previsualization the cardiac veins anatomy before the implantation of cardiac resynchronization therapy (CRT).
METHODSThe 64-slice CT scans of 21 patients [10 men, age (61.6 ± 9.7) years] were obtained and analyzed before the implantation of CRT. Retrograde coronary venography was performed during intraoperational fluoroscopy. The coronary sinus (CS) and the main tributaries were measured.
RESULTSSimilar images to those obtained during the CRT implantation procedure were obtained by MDCT in 71% of the patients. The coronary sinus was clearly visible in all cases, the measured ostium was (12.1 ± 4.2) mm, and the angle between the CS and the vertical plane was (99 ± 12) degrees. In 90% of patients, at least one vein was clearly visible in the target area. Among the target veins, the posterolateral vein was visible in most cases (86%) and the lateral vein was visible in 48% of the patients.
CONCLUSIONMDCT is an effective and noninvasive method for previsualization of the cardiac venous system, which may facilitate optimal left ventricular lead positioning for CRT implantation.
