Indications:
Renal insufficiency
Nephrolithiasis
Renal mass
Polycystic kidney disease
Acquired cystic renal disease
Hydronephrosis
Pyelonephritis
Renal infarction
Acute or chronic renal failure
Strengths:
Noninvasive
Can be performed at bedside
Fast
No ionizing radiation
Readily available
Weaknesses:
Affected by body habitus