Asset Details
Do you wish to reserve the book?
The accuracy and utility of contrast-enhanced MR angiography for localization of spinal dural arteriovenous fistulas: the Toronto experience
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
The accuracy and utility of contrast-enhanced MR angiography for localization of spinal dural arteriovenous fistulas: the Toronto experience
Do you wish to request the book?
The accuracy and utility of contrast-enhanced MR angiography for localization of spinal dural arteriovenous fistulas: the Toronto experience
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
The accuracy and utility of contrast-enhanced MR angiography for localization of spinal dural arteriovenous fistulas: the Toronto experience
2014
Overview
Objectives
The purpose of this study was to determine the accuracy and utility of contrast-enhanced MR angiography (CE-MRA) in spinal dural arteriovenous fistulas (SDAVF).
Methods
A retrospective analysis from 1999–2012 identified 70 patients clinically suspected of harboring a SDAVF. Each patient underwent consecutive conventional MR-imaging, CE-MRA, and digital subtraction angiography (DSA). The presence or absence of serpentine flow voids, T2-weighted hyperintensity, and cord enhancement were evaluated, as well as location of the fistula as predicted by CE-MRA. DSA was used as the reference standard.
Results
Of the 70 cases, 53 were determined to be a SDAVF, 10 cases were shown to be other forms of vascular malformation, and 7 were DSA-negative. On MRI, all reported cases of SDAVF showed serpentine flow voids (100 %). T2-weighted hyperintensity was seen in 48 of 50 cases (96 %), extending to the conus in 41 of 48 cases (85 %). Cord enhancement was seen in 38 of 41 cases (93 %). CE-MRA correctly localized the SDAVF in 43 of the 53 cases (81 %).
Conclusions
CE-MRA is a useful non-invasive examination for the detection and localization of SDAVF. CE-MRA facilitates but does not replace DSA as confirmation of location, fistula type, and arterial detail, which are required before treatment.
Key Points
•
CE-MRA correctly localized the site of the SDAVF in over 80 % of cases.
•
CE-MRA facilitates diagnostic DSA and expedites the diagnostic process.
•
CE-MRA does not replace diagnostic DSA in SDAVF cases as confirmative test.
•
CE-MRA provides better understanding of missed or mislocalized SDAVF cases.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
/ Adult
/ Aged
/ Angiography, Digital Subtraction
/ Central Nervous System Vascular Malformations - diagnosis
/ Child
/ Edema
/ Female
/ Fistula
/ Humans
/ Imaging
/ Iohexol
/ Magnetic Resonance Angiography - methods
/ Magnetic Resonance Angiography - statistics & numerical data
/ Male
/ Medicine
/ Neuro
/ Ontario
/ Patients
