불현신의 진단에 대한 연구 = Diagnostic Evaluation of Nonvisualizing Kidney on Intravenous Pyelography

다국어 초록 (Multilingual Abstract)

Nonvisualizing kidney may b resulted from various diseases of those vascular obstruction, functional deterioration of the glomerular filtration or obstruction of the lower urinary tract.
In the cases of nonvisualizing kidneys on intravenous pyelography(IVP), further studies including 24 hours KUB, retrograde pyelography(RGP), antegrade pyelography(AGP), renal angiography, ultrasongraphy, renal scanning and renogram or computed tomography are needed.
During the period of 6 years from May, 1980 to April, 1986.68cases of nonvisualizing kidney were studied to find out the cause by various imaging studies.
1. Of 1685 cases hospitalized, lntravenous pyelographies were performed on 974 cases. Among these, nonvisualizing kidney reveased a ratio of 7.0%.
2. The sex ratio between male and female of nonvisualizing kidney was 1.3 : 1 and age distribution ranged from 13 to 74 years.
3. Right kidneys were affected in 37 cases, left kidneys in 30 cases and both kidneys in 1 case.
4. The clinical symptoms and signs were flank pain, frequency, nausea & vomiting, hematuria and lower abdominal pain.
5. Retrograde pyelographies were performed in 38 out 68 cases of nonvisualizing kidney. Retrograde pyelography was the most confirmative procedure in cases of the inflammatory disease of the kidney, obstructive disease and renal pelvis tumor.
6. Renal angiographies were performed in 10 cases. Renal angiography was helpful in the diagnosis and evaluation of the extent of renal tumor.
7. Computed tomographies were performed in 11 cases. It was very useful for evaluation of extent of the renal trmor and regional or intraabdominal distant metastasis.
8. Ultrasongraphies were performed in 35 cases. The size and gross contour of the kidney, hydronephrosis and focal mass were easily detectable with ultrasonography.
9. Renal scannings and renograms were performed in 15 cases and were useful for evauation of renal function.
10. The rate of diagnostic accuracy were 80% in retrograde pyelography, 74.3% in ultrasonography, 100% in computed tomography and 60% in renal angiography.