Abstract
Purpose
To determine the optimal measurement method of 2D shear wave elastography (2D-SWE) for noninvasive quantitative assessment of renal fibrosis in chronic kidney disease (CKD) patients.
Methods
A total of 190 CKD patients were enrolled for 2D-SWE of right kidney. The success rates, coefficients of variation (CV), and pathological correlation of different measurement sites, body positions, and depths were compared.
Results
(1) Measurement sites: Success rate in the middle part (100%) was higher than that in the lower pole (97.3%, P > 0.05). CV in the middle part (10.2%) was lower than that in the lower pole (16.4%, P < 0.05). Pathological correlation of the middle part (r = − 0.452, P < 0.05) was higher than that of the lower pole (r = 0.097, P > 0.05). (2) Body positions: Success rate in left lateral decubitus position (100%) was higher than that in supine (99.4%, P > 0.05) and prone position (99.4%, P > 0.05). CV was lowest (11.9%) and pathological correlation was highest (r = -0.256, P < 0.05) in prone position. (3) Measurement depths: Success rate at depth < 4 cm (100%) was higher than that at depth ≥ 4 cm (98.8%, P > 0.05). CV at depth < 4 cm (11.1%) was lower than that at depth ≥ 4 cm (14.4%, P < 0.05). Pathological correlation at depth < 4 cm (r = − 0.303, P < 0.05) was higher than that at depth ≥ 4 cm (r = − 0.156, P > 0.05).
Conclusion
The optimal measurement method of 2D-SWE for renal fibrosis assessment was prone position, renal middle part, and measurement depth < 4 cm.
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Abbreviations
- 2D-SWE:
-
2D shear wave elastography
- BMI:
-
Body Mass Index
- CKD:
-
Chronic kidney disease
- CV:
-
Coefficients of variation
- eGFR:
-
Estimated glomerular filtration rate
- SD:
-
Standard deviation
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Conceptualization: ZS, YL, YH; Methodology: JC, YH, ZS; Formal analysis and investigation: YL, JC; Writing—original draft preparation: YL; Writing—review and editing: JC, YH, YL, ZS; Resources: ZS; Supervision: ZS, YL, YH.
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Lin, Y., Chen, J., Huang, Y. et al. A methodological study of 2D shear wave elastography for noninvasive quantitative assessment of renal fibrosis in patients with chronic kidney disease. Abdom Radiol 48, 987–998 (2023). https://doi.org/10.1007/s00261-022-03753-5
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DOI: https://doi.org/10.1007/s00261-022-03753-5