Clinical utility of ultrasonographic evaluation in acute kidney injury

Translational Andrology and Urology
Caijie Liu, Xiuzhen Wang

Abstract

This study aimed to evaluate ultrasonography (US) in patients with acute kidney injury (AKI) and the association of US findings with its clinical characteristics. This single-center retrospective study evaluated US in AKI patients. A healthy control group was matched by sex and age at a ratio of 2:1 with the AKI group. The US characteristics were compared between the two groups. The US characteristics of 111 patients with AKI were evaluated. Compared with the control group, AKI patients had greater kidney length and kidney volume (P<0.05). Patients with AKI also displayed thicker parenchyma than those in the control group, but only the difference in the right kidney was found to be significant. Of the 111 AKI patients, 38 had positive US findings including increased parenchymal echogenicity, increased renal resistance index (RRI), and hydronephrosis, while only 5 patients had increased RRI. The cause of AKI was attributed to obstructive nephropathy in eight patients. Although US evaluation indicated that most of the patients with AKI were "normal ultrasound imaging", abnormal findings beyond obstructive nephropathy were still detected in some cases. Aside from its ability to exclude obstructive nephropathy, US evaluation might ...Continue Reading

Citations

Apr 10, 2021·Clinical and Experimental Nephrology·Daisuke KatagiriTakamune Takahashi

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