I want to know about the role of dmsa test in kidney?

Scarring, pyelo. Dmsa test is usually ordered to evaluate for renal scarring or pyelonephritis.
Measure renal cortex. Radiolabeled dmsa is administered to estimate the amount of functional renal tissue present. It is sometimes used to monitor children who may have disorders (eg, vesicoureteral reflux) which may cause loss of renal tissue. Other molecules (eg, dtpa or mag-3) are intended to estimate actual renal function or look for the presence of obstruction.