RENAL PARENCHYMAL THICKNESS IN CHILDREN MEASURED BY COMPUTED-TOMOGRAPHY

Renal parenchymal thickness was measured at different regions and leve ls through the kidney in 162 abdominal computed tomography (CT) examin ations of children 5 months to 14 years old. The transverse diameter o f the first lumbar vertebra (L1) was also measured, in order to take i nto account the child's body habitus. All patients were examined with an indication other than renal disease and had no abnormal CT findings in the retroperitoneum. Renal parenchyma increased in parallel with t he transverse diameter of L1 and did not depend on age or sex in child ren of the same body format. There were no significant differences in size between the right and the left kidneys. Renal measurements were t abulated on reference tables, as an aid in the assessment of renal par enchymal thickness in children undergoing abdominal CT examination.