What is a normal kidney ultrasound? A kidney ultrasound is a noninvasive diagnostic exam that produces images, which are used to assess the size, shape, and location of the kidneys. Ultrasound may also be used to assess blood flow to the kidneys. Ultrasound uses a transducer that sends out ultrasound waves at a frequency too high to be heard.
Can an ultrasound show kidney problems? Doctors order renal ultrasounds when there’s a concern about some types of kidney or bladder problems. Renal ultrasound tests can show: the size of the kidneys. signs of injury to the kidneys.
What is the red and blue on kidney ultrasound? Strain elastography of a normal kidney. Red depicts soft areas, and blue depicts hard areas relative to the entire elastography image. Note that the medulla is softer than the cortex. A color bar is shown to the left of the image, where ‘S’ and ‘H’ denote soft and hard tissue, respectively.
Can you have kidney disease with a normal kidney ultrasound? Ultrasound findings can be normal in patients with renal disease, especially in prerenal azotemia and acute parenchymal renal disease. Echogenic kidneys indicate the presence of parenchymal renal disease; the kidneys may be of a normal size or enlarged. Small kidneys suggest advanced stage chronic kidney disease.