Echocardiogram-Gated Computed Tomographic and Magnetic Resonance Angiographies for the Detection of Pulsatile Expansion at the Intracranial Arterial Bifurcation
- Authors
- Lee, Young-Jun; Chung, Tae-Sub; Rhim, Yoon-Chul; Suh, Sang-Hyun; Foo, Thomas K. F.
- Issue Date
- Nov-2010
- Publisher
- LIPPINCOTT WILLIAMS & WILKINS
- Keywords
- aneurysm; angiography; brain; cerebrovascular disorders; magnetic resonance imaging
- Citation
- JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, v.34, no.6, pp.842 - 846
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
- Volume
- 34
- Number
- 6
- Start Page
- 842
- End Page
- 846
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173504
- DOI
- 10.1097/RCT.0b013e3181ecc265
- ISSN
- 0363-8715
- Abstract
- Objective: To identify the pulsatile small vascular lesion by echocardiogram (ECG)-gated computed tomographic (CT) and magnetic resonance (MR) angiographies. Methods: Seven patients who exhibited small evagination at the cerebral artery bifurcations on 3-dimensional (3D) time-of-flight MR angiogram were enrolled. They were examined by conventional/ECG-gated CT angiogram (n = 6) and ECG-gated MR angiogram (n = 5). Echocardiogram-gated MR angiogram was performed with 3D time of flight, triggered after each time window. From ECG-gated CT and MR angiograms, consecutive 10-phase images within a single cardiac cycle were obtained. Results: The pulsatile change of evagination was demonstrated on both ECG-gated CT angiogram (5 of 6 patients) and ECG-gated MR angiogram (all 5 patients). Flattening of the evagination during the diastolic phase was observed in 4 of 6 ECG-gated CT angiograms and 3 of 5 ECG-gated MR angiograms. Of note was a patient with a tiny evagination (<2 x 1 mm); pulsatile change was demonstrated only by ECG-gated MR angiogram. Conclusion: The pulsatile expansion of evagination at the cerebral artery bifurcation can be demonstrated on ECG-gated CT/MR angiograms.
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