Adequate clinical evaluation of patients with dif
نویسنده
چکیده
rates and residual bladder urine volume. These tests require urethral catheterization. The disadvantages of catheterization have been amply described (1,2) and justify the need to develop a method to evaluate the lower urinary tract without recourse to catheter ization. Mulrow and associates (3) used 131I-labeled diodrast to estimate residual bladder urine volume without catheterization. They administered radio diodrast intravenously and after 1—3hr the radioac tivity over the urinary bladder was measured before and after voiding. The residual counting rate was taken as a function of the volume of urine remain ing in the bladder, and an acceptable correlation was observed between the radiodiodrast estimation of residual urine and the actual volume determined by catheterization. Winter (4) has suggested that the evaluation of residual urine should be a final step following the radiorenography and that mean urine flow rates can be obtained during this procedure. However, the use of radionuclides to measure urine flow rates has not been described previously. The present report concerns the application of radionuclide techniques to the evaluation of residual urine volume and urine flow rates. Radioiodohip
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