Optimization of scanning parameters in dual-source computer tomography angiography on carotid
- VernacularTitle:双源CT颈动脉成像扫描参数的优化研究
- Author:
Haifeng GU
;
Peng CHEN
;
Longjiang ZHANG
;
Lin LI
;
Changsheng ZHOU
;
Ling ZHENG
- Publication Type:Journal Article
- Keywords:
Dual-source computer tomography;
Multi-slice CT angiography;
Carotid angiography;
Scanning parameters optimization
- From:
Journal of Medical Postgraduates
2003;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:Rudimental contrast media in the subclavian vein often influence the display of carotid on dual-source computer tomography angiography.This article aimed to investigate this influence,and find a best solution.Methods:One hundred patients were randomly divided into Groups A(n=52) and B(n=48).The former received traditional imaging,with 65 ml contrast media,4.0 ml/s injection flow and caudocranial scanning direction,while the latter kept all the parameters unchanged except the scanning direction,from caudocranial to craniocaudal.Each group was graded by original axial images,maximum intensity projection(MIP),silhouette images and VR images for vascular delineation of the carotid.Results: The carotid artery was clearly displayed in Group B,while the subclavian vein was unsatisfactorily revealed in Group A,with statistically significant differences in extent scores between the two groups(P
