The Performance of Noncontrast Magnetic Resonance Angiography in Detecting Renal Artery Stenosis as Compared With Contrast Enhanced Magnetic Resonance Angiography Using Conventional Angiography as a Reference

作者：Liang Keng Wei; Chen Jhih Wei; Huang Hsin Hui; Su Chun Hung; Tyan Yeu Sheng; Tsao Teng Fu^*

来源：Journal of Computer Assisted Tomography, 2017, 41(4): 619-627.

DOI：10.1097/RCT.0000000000000574

• feasibility
• magnetic resonance angiography
• quality
• diagnostic ability
• renal artery stenosis

Objective: The aims of this study were to evaluate the performance of noncontrast magnetic resonance angiography (NC MRA) for detecting renal artery stenosis (RAS) as compared with contrast-enhanced magnetic resonance angiography (CE MRA) and to evaluate the clinical feasibility, technical success rate, and performance of NC MRA for detecting RAS as compared with CE MRA.
Methods: Thirty-six subjects who underwent NC MRA and/or CEMRA were enrolled. Feasibility, technical success rate, and image quality scores were compared. Diagnostic ability was calculated using conventional angiography as a reference.
Results: Noncontrast MRA had higher feasibility and technical success rates than CE MRA did (100% and 97.2% vs 83.3% and 90%, respectively). Noncontrast MRA yielded significantly better image quality in motion artifact (P = 0.016). The diagnostic ability for detecting RAS is without significant difference between NC MRA and CE MRA.
Conclusion: Although NC MRA and CE MRA demonstrated comparable ability in diagnosing RAS, NC MRA achieved better technical success rates, feasibility, and image quality in motion artifacts than CE MRA did.

• 出版日期2017-8