• Chenyang Qiu, Jiang Shao, Xiu Liu, and Bao Liu.
• Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China.
• Medicine (Baltimore). 2017 Nov 1; 96 (47): e8654.

RationaleTraditional digital subtraction angiography (DSA) provides lumen morphology of renal artery as indicators for vascular patency in patients with renal artery stenosis (RAS). It, however, lacks hemodynamic information toward target kidney. To solve this shortcoming, a novel technique, flat-panel detector parenchymal blood volume imaging (FD-PBV), is introduced, which is able to evaluate hemodynamic changes of target kidney intraoperatively.Patients ConcernsA 77-year-old female presented with hypertension, intermittent dizziness, nausea, and fatigue.DiagnosesNinety-nine percent stenosis of left RAS was found.InterventionsPercutaneous transluminal renal angioplasty was performed, along with FD-PBV acquisition protocol.OutcomesHer symptoms relieved gradually after procedure. Intuitive FD-PBV maps showed her renal perfusion improved remarkably. Quantitative analysis of FD-PBV showed her kidney volume was 47.02 and 75.61 cm with average density of contrast medium (CM) 58.1 HU and 311.5 HU before and after stenting. Follow-up at 6 months showed patency of the stent and stable kidney blood perfusion.LessonsFD-PBV technique possesses a remarkable value in quantitatively assessing the changes of kidney blood perfusion and can be a useful auxiliary technique for DSA.Copyright © 2017 The Authors. Published by Wolters Kluwer Health, Inc. All rights reserved.

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