Abstract
With advancing age renal function decreases. Estimation of renal function appears necessary to evaluate prognosis, and may be related to glomerular filtration rate (GFR). The physiological aging of the kidney depends on the reduced number of functioning glomeruli and an increased prevalence of nephrosclerosis and with a relative compensatory hypertrophy. These changes may be visible macroscopically with cortical volume reduction and a slight increase in the medulla until the appearance of numerous cystic formations. Ultrasonography is the first-choice technique in the morphological evaluation of the abdominal organs; in fact it can measure the size and volume of the kidney correlating it with renal function in patients with chronic kidney disease.
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Drudi, F.M. (2021). The Elderly Kidney. In: Granata, A., Bertolotto, M. (eds) Imaging in Nephrology. Springer, Cham. https://doi.org/10.1007/978-3-030-60794-4_12
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