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• Clinical Article •
Evaluation of renal artery with non-contrast magnetic resonance angiography for hypertension subjects: A SLEEK sequence comparison with CTA
LIAO Yun-jie  PEI Yi-gang  LI Li-feng  WANG Wei 

DOI:10.12015/issn.1674-8034.2017.10.008.


[Abstract] Objective: To explore the ability of NCE-MRA SLEEK (a non-contrast enhanced magnetic resonance angiography using spatial labeling with multiple inversion pulses) in showing renal arteries and displaying renal artery disease in those patients with hypertension.Materials and Methods: NCE-MRA SLEEK was performed for evaluating the ability of showing renal arteries and presenting renal artery disease in those hypertension patients. The renal arteries were assessed by two experienced radiologists. All patients performed computed tomography angiography (CTA) within 10 days after NCE-MRA SLEEK. The ability of displaying the renal arteries and delineating renal artery disease with NCE-MRA SLEEK were assessed with the comparison of CTA results.Results: NCE-MRA SLEEK was successfully undergone in 46 out of 52 patients. In these 46 hypertension patients, a total of 109 renal arteries were found with NCE-MRA SLEEK (CTA:114), including 77 normal (CTA: 82), 28 renal artery stenoses (RAS) (CTA: 26), 4 fibromuscular dysplasia (FMD) (CTA: 6). The ability of presenting the main renal artery between SLEEK and CTA was coincidence with an exception of not displaying 5 renal artery on NCE-MRA SLEEK; For presenting segmental branches in the renal parenchyma, NCE-MRA SLEEK was superior to CTA (P=0.001). The excellent correlation was found between NCE-MRA SLEEK and CTA in displaying the RAS degree (Rs=0.85, P<0.05).Conclusion: NCE-MRA SLEEK appears a good diagnostic method for presenting renal artery and assessing renal artery disease, especially for segmental branches in the renal parenchyma. It can be as an CTA alternative choice for screening renal artery diseases.
[Keywords] Hypertension；Renal artery；Renal artery disease；Computed tomography angiography；Magnetic resonance imaging

LIAO Yun-jie Department of Radiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China

PEI Yi-gang* Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China

LI Li-feng Department of Radiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China

WANG Wei Department of Radiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China

*Correspondence to: Pei YG, E-mail: xypyg0731@163.com

Conflicts of interest   None.

Received  2017-03-28
Accepted  2017-09-05
DOI: 10.12015/issn.1674-8034.2017.10.008
DOI:10.12015/issn.1674-8034.2017.10.008.

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