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Injection of contrast media using a large-bore angiography catheter with a guidewire in place: Physical factors influencing injection pressure in cerebral angiography

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Alternative Title
Injection of contrast media using a large-bore angiography catheter with a guidewire in place: Physical factors influencing injection pressure in cerebral angiography
Abstract
Background: We have used a contrast injection scheme termed as "guided catheterization method (guided method)." By using a large-bore 5-Fr catheter and 0.032-in guidewire, a contrast medium could be injected without removing the guidewire. Using a neurovascular phantom, we studied the influence of leaving the guidewire on the contrast injection pressure. Image quality was compared with that obtained using a 4-Fr regular angiography catheter (conventional method).

Methods: Actual contrast injection pressure, flow rate, flow volume, and several variables from the time-density curve (TDC) were obtained using the guided method and the conventional method. Catheterization parameters included flow rate, the viscosity of a contrast medium (CM), and catheter length. The pressure limit of a contrast injector was set as 1200 psi. Digital subtraction angiography (DSA) images on the neurovascular phantom were acquired. The DSA images were processed, and TDC on a specific region of interest was obtained. Variables from TDC were calculated and compared between the different catheters.

Results: The ranges of actual contrast injection pressure with the conventional and the guided method were 138-299 psi and 184-451 psi, respectively. A minimal reduction of the actual flow rate was found under some conditions with the guided method. Comparable opacifications in DSA images were achieved in all conditions. Although peak intensity was different by flow rate or CM, all TDC variables did not differ based on the catheter. There were no significant harmful events during the 90 experiments.

Conclusions: With adjustment of the pressure limit, cerebral angiography using the 5-Fr, large-bore catheter without removal of the guidewire is feasible, safe, and expected to provide image quality comparable to that of the 4-Fr regular catheter.
Author(s)
권보성맹준영송윤선이덕희최준호황선문
Issued Date
2021
Type
Article
Keyword
Angiography catheterdigital subtraction angiographyinjection pressure
DOI
10.1177/1591019920980876
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8157
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2470034695&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Injection%20of%20contrast%20media%20using%20a%20large-bore%20angiography%20catheter%20with%20a%20guidewire%20in%20place:%20Physical%20factors%20influencing%20injection%20pressure%20in%20cerebral%20angiography&offset=0&pcAvailability=true
Publisher
INTERVENTIONAL NEURORADIOLOGY
Location
미국
Language
영어
ISSN
1591-0199
Citation Volume
27
Citation Number
4
Citation Start Page
558
Citation End Page
565
Appears in Collections:
Medicine > Medicine
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