title: Ultrasonic assessment of hydronephrosis of pregnancy.
abstract: Real-time renal ultrasonographic scans were obtained of 204 subjects, comprising 159 pregnant and 45 control subjects. A classification of hydronephrosis based on calyceal diameters was established, and the overall incidence of hydronephrosis was found to be 90% on the right side and 67% on the left side. Calyceal diameters for both kidneys were found to increase gradually throughout pregnancy, the right more rapidly than the left. Neither parity nor a history of urinary tract problems was found to be relevant to the degree of dilatation.
mesh_terms: D004108:Dilatation, Pathologic; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000150:complications / Q000175:diagnosis*; D007670:Kidney Calices; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D014463:Ultrasonography; D014552:Urinary Tract Infections / Q000150:complications