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Renal shear wave velocity by acoustic radiation force impulse did not reflect advanced renal impairment
Author(s) -
Takata Tomoaki,
Koda Masahiko,
Sugihara Takaaki,
Sugihara Shinobu,
Okamoto Toshiaki,
Miyoshi Kenichi,
Matono Tomomitsu,
Hosho Keiko,
Mae Yukari,
Iyama Takuji,
Fukui Takeaki,
Fukuda Satoko,
Munemura Chishio,
Isomoto Hajime
Publication year - 2016
Publication title -
nephrology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 61
eISSN - 1440-1797
pISSN - 1320-5358
DOI - 10.1111/nep.12701
Subject(s) - medicine , acoustic radiation force , kidney disease , end stage renal disease , urology , kidney , wave velocity , ultrasound , shear (geology) , cardiology , disease , radiology , geology , petrology
Aim Acoustic radiation force impulse is a noninvasive method for evaluating tissue elasticity on ultrasound. Renal shear wave velocity measured by this technique has not been fully investigated in patients with renal disease. The aim of the present study was to compare renal shear wave velocity in end‐stage renal disease patients and that in patients without chronic kidney disease and to investigate influencing factors. Methods Renal shear wave velocities were measured in 59 healthy young subjects (control group), 31 subjects without chronic kidney disease (non‐CKD group), and 39 end‐stage renal disease patients (ESRD group). Each measurement was performed 10 times at both kidneys, and the mean value of eight of 10 measurements, excluding the maximum and minimum values, was compared. Results Renal shear wave velocity could be measured in all subjects. Renal shear wave velocity in the control group was higher than in the non‐CKD group and in the ESRD group, and no difference was found between the non‐CKD group and the ESRD group. Age and depth were negatively correlated to the renal shear wave velocity. In multiple regression analysis, age and depth were independent factors for renal shear wave velocity, while renal impairment was not. There was no difference between the non‐CKD group and the ESRD group, even when ages were matched and depth was adjusted. Conclusion Renal shear wave velocity was not associated with advanced renal impairment. However, it reflected alteration of renal aging, and this technique may be useful to detect renal impairment in the earlier stages.