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[The pelvicaliceal system in the sonogram--distinction between physiological and pathological dilatation]
Rontgen-Blatter; Zeitschrift Fur Rontgen-Technik Und Medizinisch-Wissenschaftliche Photographie
|January 1, 1985
Summary
Increased fluid intake can dilate the pelvicalyceal system in healthy kidneys. However, ureteral visualization and unilateral stasis suggest urinary obstruction, making excretory urography essential for diagnosis.
Area of Science:
- Urology
- Radiology
- Nephrology
Context:
- Pelvicalyceal system dilation can occur in healthy kidneys.
- Renal excretion can be augmented by various methods.
- Ureteral visualization varies with obstruction severity.
Purpose:
- To investigate the visualization of the pelvicalyceal system and ureters under conditions of increased renal excretion and varying degrees of urinary obstruction.
- To compare the diagnostic utility of sonography and excretory urography.
Summary:
- Dilatation of the pelvicalyceal system is observed in healthy volunteers with augmented renal excretion.
- The proximal ureter is typically not visualized in such cases.
- In mild to moderate urinary obstruction, the ureter is usually visible, often with unilateral stasis.
- Sonography demonstrates good sensitivity, but excretory urography remains crucial for evaluating the pelvicalyceal and ureteral systems.
Impact:
- Highlights the importance of excretory urography in diagnosing pelvicalyceal and ureteral abnormalities.
- Clarifies the sonographic findings in relation to renal excretion and obstruction.
- Provides insights into the diagnostic approach for urinary tract evaluations.