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[Radiopacity of double-J ureteral catheters. Computed tomography quantification and clinical implications]
J Vallejo Herrador1, A Cuevas Ibáñez, J Burgos Revilla
1Servicio de Urología, Hospital Universitario del Aire, Madrid.
Archivos Espanoles De Urologia
|March 1, 1997
Summary
All double-J ureteral stents (ureteral catheters) in Spanish hospitals are sufficiently radiopaque for effective radiologic control and follow-up. Radiopacity depends on manufacturing metal salts, not the biomaterial itself.
Area of Science:
- Urology
- Radiology
- Biomaterials Science
Context:
- Double-J ureteral stents are widely used in Spanish hospitals for urinary tract procedures.
- Accurate radiologic control is crucial for stent placement and patient monitoring.
Purpose:
- To assess the radiopacity of various double-J ureteral stents used in Spain.
- To determine if current stent radiopacity is adequate for clinical imaging and follow-up.
Summary:
- Twenty-three different double-J ureteral stents were analyzed using the CT attenuation index.
- Radiopacity values ranged from 1,000 to 3,070 Hounsfield units.
- All tested stents demonstrated sufficient radiopacity for effective radiologic control.
Impact:
- Confirms that current double-J ureteral stents provide adequate visibility for radiological procedures.
- Highlights that stent radiopacity is determined by manufacturing additives (metal salts), not the base biomaterial.
- Informs clinicians and manufacturers about the imaging characteristics of ureteral stents.