Titre du document / Document title

The feasibility of spatial high-resolution magnetic resonance angiography (MRA) of the renal arteries at 3.0 T

Auteur(s) / Author(s)

MICHAELY H. J. ; NAEL K. ; SCHOENBERG S. O. ; FINN J. P. ; LAUB G. ; REISER M. F. ; RUEHM S. G. ;

Résumé / Abstract

Purpose: To evaluate the feasibility of high-spatial resolution magnetic resonance angiography (MRA) of the renal arteries at 3.0 T. Material and Methods: Twelve healthy volunteers (mean age, 38.8 years) underwent renal MRA at 3.0 T. The application of parallel imaging with an acceleration factor of 3 allowed obtaining MR angiographic data with a voxel size of 0.9 × 0.8 × 0.9 mm in scan time of only 16 s. A dose of 0.2 mmol/kg body weight of 0.5-molar gadodiamide was administered at a flow rate of 2 ml/s. For image analysis, image quality, presence of artifacts, venous contamination and level of noise were rated by two radiologists in consensus. Results: All examinations were of diagnostic quality. The image quality was rated good or very good in 91% (11/12) of cases. Due to the high parallel imaging factor the level of noise was slightly increased without diagnostic impairment. Mild venous enhancement was found in 75% (9/12) of the examinations. Conclusion: Renal MRA at 3.0 T is feasible with high spatial resolution and a short acquisition time.

Revue / Journal Title

Rofo. Fortschritte auf dem Gebiet der Rontgenstrahlen und der bildgebenden Verfahren   ISSN 1438-9029 

Source / Source

2005, vol. 177, n^o6, pp. 800-804 [5 page(s) (article)]

Langue / Language

Anglais
Revue : Allemand

Editeur / Publisher

Thieme, Stuttgart, ALLEMAGNE  (1996) (Revue)

Localisation / Location

INIST-CNRS, Cote INIST : 2232, 35400012493822.0030