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Echocardiogram-gated computed tomographic and magnetic resonance angiographies for the detection of pulsatile expansion at the intracranial arterial bifurcation

Authors
 Young-Jun Lee  ;  Tae-Sub Chung  ;  Yoon-Chul Rhim  ;  Sang-Hyun Suh  ;  Thomas K.F. Foo 
Citation
 JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, Vol.34(6) : 842-846, 2010 
Journal Title
 JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY 
ISSN
 0363-8715 
Issue Date
2010
MeSH
Aged ; Aged, 80 and over ; Contrast Media ; Echocardiography* ; Electrocardiography ; Female ; Humans ; Imaging, Three-Dimensional ; Intracranial Aneurysm/diagnosis* ; Iohexol ; Magnetic Resonance Angiography/methods* ; Male ; Middle Aged ; Prospective Studies ; Pulsatile Flow ; Tomography, X-Ray Computed/methods*
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 × 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
Full Text
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00004728-201011000-00007&LSLINK=80&D=ovft
DOI
10.1097/RCT.0b013e3181ecc265
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Suh, Sang Hyun(서상현) ORCID logo https://orcid.org/0000-0002-7098-4901
Chung, Tae Sub(정태섭)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/102673
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