Time-Resolved 3D Contrast-Enhanced MRA on 3.0T: a Non-Invasive Follow-Up Technique after Stent-Assisted Coil Embolization of the Intracranial Aneurysm
Korean Journal of Radiology
;
: 662-670, 2011.
Article
in English
| WPRIM
| ID: wpr-155128
ABSTRACT
OBJECTIVE:
To evaluate the usefulness of time-resolved contrast enhanced magnetic resonance angiography (4D MRA) after stent-assisted coil embolization by comparing it with time of flight (TOF)-MRA. MATERIALS ANDMETHODS:
TOF-MRA and 4D MRA were obtained by 3T MRI in 26 patients treated with stent-assisted coil embolization (EnterpriseNeuroform = 719). The qualities of the MRA were rated on a graded scale of 0 to 4. We classified completeness of endovascular treatment into three categories. The degree of quality of visualization of the stented artery was compared between TOF and 4D MRA by the Wilcoxon signed rank test. We used the Mann-Whitney U test for comparing the quality of the visualization of the stented artery according to the stent type in each MRA method.RESULTS:
The quality in terms of the visualization of the stented arteries in 4D MRA was significantly superior to that in 3D TOF-MRA, regardless of type of the stent (p < 0.001). The quality of the arteries which were stented with Neuroform was superior to that of the arteries stented with Enterprise in 3D TOF (p < 0.001) and 4D MRA (p = 0.008), respectively.CONCLUSION:
4D MRA provides a higher quality view of the stented parent arteries when compared with TOF.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Stents
/
Intracranial Aneurysm
/
Cerebral Arteries
/
Sensitivity and Specificity
/
Magnetic Resonance Angiography
/
Contrast Media
/
Imaging, Three-Dimensional
/
Embolization, Therapeutic
Type of study:
Diagnostic study
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
Language:
English
Journal:
Korean Journal of Radiology
Year:
2011
Type:
Article
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