Strengths of Ultrasound in the evaluation of kidney disease

What are the strengths of Ultrasound in the evaluation of kidney disease?

• Sensitive for detection of perirenal fluid collections, pelvicalyceal dilatation, and cysts

• Differentiates cortex and medulla

• Differentiates cystic and solid masses

• Shows the kidney contour and perinephric space

• Demonstrates kidney blood flow by Doppler technique

• Provides good kidney imaging irrespective of kidney function; may be used in patients with elevated serum creatinine

• Can evaluate resistive indices to monitor chronic kidney disease and kidney transplants

• Can be used portably at the bedside in the intensive care unit

• Safe: no ionizing radiation or nephrotoxic contrast medium

• Low cost

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