Aorta Imaging with Multi-slice Spiral CT
- VernacularTitle:多层螺旋CT主动脉成像技术
- Author:
Hong YAN
;
Litong WANG
;
Jian CHEN
- Publication Type:Journal Article
- Keywords:
spiral CT aorta;
contrast medicine;
image reconstruction
- From:
Chinese Medical Equipment Journal
1989;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the optimum scanning parameters for multi-slice spiral CT aorta imaging so as to emphasize the contrast delay time and the method of image reconstruction.Methods 21 cases of patients were scanned with contrast enhancement by the method of bolus tracking.The contrast medicine was injected through elbow vein.Flow speed was 3.0ml/s,and contrast usage was 1.5 to 2ml/ kg.Scanning was triggered when the density of the enhancement at ROI arose to a prescribed value.After data acquisition and reconstruction,the aorta was displayed.Results The average time for the influx of contrast in aorta was 20 seconds.Data was reformatted with the thickness of 2.5mm and 50% overlapping.VR,CPR,MIP and SSD images were reconstructed.Conclusion With constant tracking of density by Smartprep software,the optimized scanning parameters and the proper image post-processing techniques,aorta can be clearly displayed.[Chinese Medical Equipment Journal,2008,29(2):88-89]
