Renal transplant failure due to urologic complications: Comparison of static fluid with contrast-enhanced magnetic resonance urography.
Eur J Radiol
; 69(2): 324-30, 2009 Feb.
Article
en En
| MEDLINE
| ID: mdl-18055152
ABSTRACT
PURPOSE:
Postrenal reasons of renal transplant failure can be assessed by magnetic resonance urography. This study was designed to retrospectively compare the diagnostic accuracy of static fluid (T2-)MRU compared to contrast enhanced (CE-)MRU in patients with renal transplant failure. MATERIAL ANDMETHODS:
Thirty-five consecutive patients (14 female, 21 men; mean age 48.6 years) with renal transplant failure and sonographically detected hydronephrosis were examined both with T2-MRU as well as CE-MRU resulting in 39 MRU examinations. MRU was performed both using T2-weighted HASTE-sequence (T2-MRU) as well as Gadolinium-enhanced 3D-FLASH-sequence (CE-MRU) on a 1.5-T clinical MRI scanner (Magnetom Vision, Siemens Medical Solutions). Subjective image quality of resulting maximum intensity projection was assessed in consensus by two readers blinded to the final diagnosis, using a five point scale. MRU findings were correlated to sonography, operative results or clinical follow up.RESULTS:
CE-MRU yielded a sensitivity of 85.7% (T2-MRU 76.2%), and a specificity of 83.3% (T2-MRU 73.7%), however statistical significance was not reached. The subjective image quality was significantly better in CE-MRU.CONCLUSIONS:
Only concerning subjective image quality CE-MRU proved superior to T2-MRU. Yet, there was no significant difference in diagnostic accuracy between T2- and CE-MRU. Thinking of incipient nephrogenic systemic fibrosis, T2-MRU can be used as reliable alternative in patients with decreased renal transplant function due to urological complications.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Imagen por Resonancia Magnética
/
Aumento de la Imagen
/
Trasplante de Riñón
/
Gadolinio DTPA
/
Hidronefrosis
Límite:
Female
/
Humans
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Male
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Middle aged
Idioma:
En
Revista:
Eur J Radiol
Año:
2009
Tipo del documento:
Article
País de afiliación:
Alemania