Intravoxel incoherent motion diffusion weighted imaging of normal adult kidney
10.3969/j.issn.1002-1671.2016.04.017
- VernacularTitle:成人正常肾脏体素内不相干运动扩散加权成像
- Author:
Yuqin DING
;
Xiyin MIAO
;
Renchen LI
;
Yingli CAO
;
Mengsu ZENG
;
Jianjun ZHOU
- Publication Type:Journal Article
- Keywords:
intravoxel incoherent motion;
diffusion weighted imaging;
adult;
normal kidney
- From:
Journal of Practical Radiology
2016;32(4):558-561
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze quantitatively intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI)of normal adult kidney and to evaluate the effects of the location of the kidney,gender and age on IVIM-DWI parameters.Methods Thirty healthy adult volunteers were recruited to undergo IVIM-DWI examination.Two radiologists measured the D ,D? and f values of renal parenchyma in both the upper pole,middle part and lower pole of the kidneys separately.Results The D ,D? and f values of the middle part of kidneys in healthy adult were(1.61±0.1 6)×10 -3 mm2/s,(1 7.45 ±3.78)×10 -3 mm2/s and (26.88 ±5.1 9)%, respectively.The D values of right kidney were higher than that of left kidney (P <0.05).The f values of normal kidney in male volunteers were higher than that of female (t = 3.321,P =0.001).The D values of normal kidney in > 50 years group were lower than that of ≤50 years group (t = 3.548,P=0.001).D value of the kidney and age was negatively correlated (r=-0.406).Intraclass correlation coefficient of D,D? and f values between two observers were 0.881,0.56 and 0.741,respectively.The consistency of two observers in measurement of IVIM-DWI parameters in the middle part of kidneys was higher than that of the upper pole and lower pole of the kidneys.Conclusion The IVIM-DWI parameters of adult normal kidneys are influenced by different parts of the kidney,gender and age.
