Journal article
MR angiography of saccular aneurysms after treatment with Guglielmi detachable coils : Preliminary experience
American journal of neuroradiology : AJNR, Vol.18(2), pp.279-286
1997
PMID: 9111664
Abstract
Purpose: To review our experience using MR angiography to assess the cerebral vasculature after aneurysmal treatment with Guglielmi detachable coils (GDCs). Methods: Forty three-dimensional time-of-flight MR angiographic studies were performed in 23 patients after endovascular aneurysmal therapy with GDCs. Digital subtraction angiographic (DSA) studies were evaluated retrospectively for the following findings: parent artery patency, branch vessel patency, residual flow within the aneurysm, and residual aneurysmal neck. The MR angiographic examinations were inspected for the same findings, as well as for the degree of signal loss surrounding the coil mass. Clinical histories were reviewed to determine the impact of MR angiographic findings on therapy. Results: Patency status of the parent artery was correctly identified on 25 of 26 MR angiographic examinations with DSA confirmation. Thirty-four of 37 patent branch vessels were identified by MR angiography. Residual neck was correctly identified in seven studies of six aneurysms, with no false-negative or false-positive results. Intraaneurysmal flow was correctly identified in five of eight studies of six aneurysms with residual flow shown by DSA. Artifact and hemorrhage mimicked residual flow in two of 18 MR angiographic studies of aneurysms with no residual flow shown by DSA. In eight patients, MR angiography provided clinically useful information that affected therapy. Conclusions: MR angiography can identify flow within an aneurysm after treatment with GDCs as well as in the adjacent parent and branch vessels. This technique may be a useful adjunct to DSA in some clinical situations.
Details
- Title: Subtitle
- MR angiography of saccular aneurysms after treatment with Guglielmi detachable coils : Preliminary experience
- Creators
- Colin P Derdeyn - Department of Radiology, University of Wisconsin Hospitals and Clinics, Madison, United StatesVirgil B GRAVES - Department of Radiology, University of Wisconsin Hospitals and Clinics, Madison, United StatesPatrick A Turski - Department of Radiology, University of Wisconsin Hospitals and Clinics, Madison, United StatesAnthony M Masaryk - Department of Radiology, University of Wisconsin Hospitals and Clinics, Madison, United StatesCharles M Strother - Department of Radiology, University of Wisconsin Hospitals and Clinics, Madison, United States
- Resource Type
- Journal article
- Publication Details
- American journal of neuroradiology : AJNR, Vol.18(2), pp.279-286
- Publisher
- American Society of Neuroradiology; Oak Brook, IL
- PMID
- 9111664
- ISSN
- 0195-6108
- eISSN
- 1936-959X
- Language
- English
- Date published
- 1997
- Academic Unit
- Neurology; Radiology; Iowa Neuroscience Institute; Neurosurgery
- Record Identifier
- 9984020870502771
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