CO2 Digital Angiography: A Safer Contrast Agent for Renal Vascular Imaging?

Hawkins, Irvin F.; Wilcox, Christopher S.; Kerns, Scott R.; Sabatelli, Frank W.

doi:10.1016/s0272-6386(12)80232-0

Cited by 86 publications

(39 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For example, filling of a renal artery may be improved by elevating the side of inter estsothatthegasrisesinto thatvessel. Likewise, thelegsmaybeelevated to improveflow of the gas into the distal arteries [16,20,21]. In ourex perience, vessel opacification with CO2 is often poor distal to anarterialocclusion.…”

Section: Discussionmentioning

confidence: 96%

Carbon dioxide as a contrast agent to guide vascular interventional procedures.

Eschelman¹,

Sullivan²,

Bonn³

et al. 1998

American Journal of Roentgenology

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 96%

Carbon dioxide as a contrast agent to guide vascular interventional procedures.

Eschelman¹,

Sullivan²,

Bonn³

et al. 1998

American Journal of Roentgenology

View full text Add to dashboard Cite

“…Although CO 2 venography has been extensively used in other areas, such as renal vascular imaging,23 there are few reports in patients with portal hypertension. Preliminary studies suggested that CO 2 wedged hepatic venography would be superior than ICM in the evaluation of the intrahepatic portal vein during a TIPS procedure 20.…”

Section: Discussionmentioning

confidence: 99%

CO2 wedged hepatic venography in the evaluation of portal hypertension

Debernardi-Venon

Bandi²,

García-Pagán³

et al. 2000

Gut

View full text Add to dashboard Cite

Background/aims/methods-During hepatic vein catheterisation, in addition to measurement of hepatic venous pressure gradient (HVPG), iodine wedged retrograde portography can be easily obtained. However, it rarely allows correct visualisation of the portal vein. Recently, CO 2 has been suggested to allow better angiographic demonstration of the portal vein than iodine. In this study we investigated the eYcacy of CO 2 compared with iodinated contrast medium for portal vein imaging and its role in the evaluation of portal hypertension in a series of 100 patients undergoing hepatic vein catheterisation, 71 of whom had liver cirrhosis. Results-In the overall series, CO 2 venography was markedly superior to iodine, allowing correct visualisation of the different segments of the portal venous system. In addition, CO 2 , but not iodine, visualised portal-systemic collaterals in 34 patients. In cirrhosis, non-visualisation of the portal vein on CO 2 venography occurred in 11 cases; four had portal vein thrombosis and five had communications between diVerent hepatic veins. Among non-cirrhotics, lack of portal vein visualisation had a 90% sensitivity, 88% specificity, 94% negative predictive value, and 83% positive predictive value in the diagnosis of pre-sinusoidal portal hypertension. Conclusions-Visualisation of the venous portal system by CO 2 venography is markedly superior to iodine. The use of CO 2 wedged portography is a useful and safe complementary procedure during hepatic vein catheterisation which may help to detect portal thrombosis. Also, lack of demonstration of the portal vein in non-cirrhotic patients strongly suggests the presence of pre-sinusoidal portal hypertension. (Gut 2000;46:856-860)

show abstract

“…Currently the most commonly employed methodology is intra-arterial digital subtraction angiography (DSA). (8) Carbon dioxide can be utilized for intra-arterial angiography (9), but image quality is reduced and this may create greater uncertainty about lesion severity unless combined with judicious use of iodinated contrast (10). …”

Section: Diagnostic Methodsmentioning

confidence: 99%

Renal Artery Stenosis: Optimizing Diagnosis and Treatment

Colyer

Eltahawy

Cooper

2011

Progress in Cardiovascular Diseases

View full text Add to dashboard Cite

Renal artery stenosis (RAS) most commonly due to atherosclerosis, with fibromuscular dysplasia (FMD) the most frequent among other less common etiologies. A high index of suspicion based upon clinical features is essential for diagnosis. Revascularization strategies are currently a topic of discussion and debate. When revascularization is deemed appropriate atherosclerotic RAS is most often treated with stent placement while patients with fibromuscular dysplasia are usually treated with balloon angioplasty. Ongoing randomized trials should help to better define the optimal management of RAS.

show abstract

CO2 Digital Angiography: A Safer Contrast Agent for Renal Vascular Imaging?

Cited by 86 publications

References 13 publications

Carbon dioxide as a contrast agent to guide vascular interventional procedures.

Carbon dioxide as a contrast agent to guide vascular interventional procedures.

CO2 wedged hepatic venography in the evaluation of portal hypertension

Renal Artery Stenosis: Optimizing Diagnosis and Treatment

Contact Info

Product

Resources

About