Abstract
Objective
This study aimed to prospectively evaluate the difference in renal parenchymal stiffness, measured using MR elastography, between patients with chronic kidney disease (CKD) and healthy volunteers. In addition, differences in stiffness values were assessed among the five stages of CKD.
Materials and methods
Five healthy volunteers and 25 patients with CKD (five patients in each stage) were enrolled in the study. Each patient was positioned prone in a 3-T MR scanner and imaged with an abdominal 64-channel surface coil. Calculated tissue stiffness values were compared with the corresponding stage of CKD.
Results
The mean stiffnesses in normal healthy volunteers and patients with CKD (regardless of stage) were 4.35 kPa and 5.10 kPa, respectively (p = 0.027). The mean stiffness in patients with CKD significantly increased with the CKD stage (p = 0.013), although it decreased in stage 5 CKD.
Conclusion
Renal tissue stiffness measured using MR elastography can be used to distinguish between patients with CKD and healthy individuals; moreover, it can be useful in predicting the stage of CKD.
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The present study was conducted in accordance with the institutional ethical committee of Wonju Severance Christian Hospital.
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Han, J.H., Ahn, JH. & Kim, JS. Magnetic resonance elastography for evaluation of renal parenchyma in chronic kidney disease: a pilot study. Radiol med 125, 1209–1215 (2020). https://doi.org/10.1007/s11547-020-01210-1
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DOI: https://doi.org/10.1007/s11547-020-01210-1