Highlights
Ultrasound viscoelastic imaging demonstrates exceptional diagnostic accuracy for Henoch-Schönlein purpura nephritis (HSPN) in pediatric patients, with a combined area under the curve (AUC) of 0.95 for elasticity, viscosity, and dispersion parameters.
The viscosity coefficient (Vmean) serves as a sensitive noninvasive marker for inflammatory activity, showing significant correlations with urinary white blood cell counts and serum albumin levels.
