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Value of non-contrast sequences in magnetic resonance angiography of hepatic arterial vasculature.
- Source :
-
European Journal of Radiology . Jun2014, Vol. 83 Issue 6, p905-908. 4p. - Publication Year :
- 2014
-
Abstract
- Abstract: Objective: To evaluate value of adding non-contrast MR angiographic sequence (In-Flow Inversion Recovery [IFIR]) to standard fat-suppressed T1-weighted postcontrast sequence (3D spoiled gradient echo [3D-GRE]) for evaluating hepatic arterial anatomy. Methods: Retrospective evaluation of 30 consecutive patients undergoing multiphase liver MRI. Individual vessels for IFIR/3D-GRE sequences were evaluated by two blinded readers using a four-point scale. Statistical analysis was performed using the Wilcoxon signed-rank test for vessel conspicuity between IFIR/3D-GRE sequences. Results: IFIR alone diagnostically imaged 8.1% of vessels, 3D-GRE alone 25.8%, 55.8% by both 3D-GRE/IFIR, and 10.3% of vessels by neither. Two patients with variant vascular anatomy were visualized with both sequences. Addition of IFIR to 3D-GRE resulted in statistically significant increase in arterial visualization (p <0.001), 10% relative increase in identified vessels, and 3–5mi increase in acquisition time for total scan time of 30–35min. Conclusions: IFIR may be a useful adjunct to 3D-GRE in hepatic angiography without adding considerably to scan time. 10% more hepatic arteries were seen when combining information from IFIR/3D-GRE vs. 3D-GRE alone. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0720048X
- Volume :
- 83
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- European Journal of Radiology
- Publication Type :
- Academic Journal
- Accession number :
- 95813075
- Full Text :
- https://doi.org/10.1016/j.ejrad.2014.03.013