DMSA scan
Also written as: DMSA — dimercaptosuccinic acid
Nuclear medicine imaging study using dimercaptosuccinic acid to evaluate kidney function and detect renal scarring in children.
Full Definition
Dimercaptosuccinic acid scintigraphy is a nuclear imaging technique that provides detailed assessment of individual kidney function and morphology. The radiopharmaceutical DMSA is taken up by functioning renal tubular cells, allowing visualization of renal cortex and identification of scarring, particularly following urinary tract infections. In pediatric urology, DMSA scans are considered the gold standard for detecting renal scarring and assessing differential renal function. The study typically requires sedation in young children and involves delayed imaging 2-3 hours post-injection.
Usage
Usage note: Always capitalize as DMSA; do not confuse with other nuclear medicine renal studies.
In Context
- "The DMSA scan revealed extensive scarring in the upper pole of the left kidney." — Nuclear medicine report
- "Follow-up DMSA scan showed no new renal scarring six months post-pyelonephritis." — Pediatric urology consultation