Current Status in Technique and Clinical Application of CO_2-DSA
- VernacularTitle:二氧化碳数字减影血管造影技术现状及临床应用
- Author:
Wei LU
;
Yanhao LI
;
- Publication Type:Journal Article
- Keywords:
Carbon dioxide;
Digital subtraction angiography
- From:
Journal of Interventional Radiology
1994;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Purpose:To evaluate clinical utility of carbon dioxide digital subtraction angiography(CO_2-DSA).Materials anti Methods:CO_2-DSA was performed in 85 patients including hepatic.renal,splenic,and super mesenterie arteriography in 75 cases,abdominal artefiography and extremity arteriography in 3 cases,direct portography in 6 cases, hepatic venography in 1 case.Delivery method met the behavior of the gas combination with optimal imaging technique and postprocessing method were applied in order to obtain image accuracy. The images quality of CO_2-DSA was then compared with that of conventional contrast agent arteriograms.Results:CO_2-DSA provided good visualization of the large vascular trunks and their 1st,2nd.grade branches of the target vessels,which could be beneficial for guiding interventional procedures.It was inferior to the conventional DSA in visualization of small vessels, however,CO_2-DSA was superior to conventional DSA in the detection of arterioportal shunts (APS),tumor blood sinuses(including Cavernous hemangioma),retrograde visualization of portal vein.The side effects were minimal.Conclusion:CO_2-DSA could provide accurate, clinical useful veseular images.CO_2-DSA is believed to be a safe and effective alternative to iodine contrast agent.
