Shear wave elastography in early diabetic kidney disease

Area of Science:

• Nephrology
• Radiology
• Medical Imaging

Background:

• Diabetic kidney disease (DKD) is a major complication of type 2 diabetes mellitus.
• Early detection of DKD is crucial for effective management and preventing progression.
• Current diagnostic methods may be invasive or lack quantitative precision in early stages.

Purpose of the Study:

• To quantitatively analyze kidney stiffness in early-stage DKD using shear wave elastography (SWE).
• To compare SWE values between patients with DKD and healthy controls.
• To evaluate the diagnostic performance of SWE for early DKD detection.

Main Methods:

• 108 patients with type 2 DKD (stages 1-3) and 17 controls underwent grayscale ultrasound and SWE.
• Kidney size, depth, and SWE values were recorded.
• Statistical comparisons were made between groups and disease stages.

Main Results:

• Mean SWE values were significantly higher in the DKD group (10.156±1.75 kPa) versus controls (8.241±1.4 kPa).
• Elevated SWE values were observed in stages 2 and 3 DKD compared to controls, and in stage 3 versus stage 1 DKD.
• A SWE cutoff of 9.23 kPa showed 67% sensitivity and 82% specificity for early DKD detection.

Conclusions:

• Shear wave elastography offers a noninvasive, quantitative method for assessing kidney stiffness in early DKD.
• SWE can provide valuable diagnostic information for routine management of type 2 diabetes patients.
• SWE shows promise as a tool for early detection and monitoring of diabetic kidney disease.