Pelvic abnormalities in XXXX : assessment with MR imaging.

@entity1 @entity154 @entity3329 @entity5409 @entity5
Multiplanar images of 62 pelvic lesions in 58 @entity1 and adolescents (aged 7 months to 19 years; mean, 10.6 years) were obtained with 0.3-T magnetic resonance (MR) imaging. Lesions were divided into three categories: @entity154 , @entity5409 and fluid collections, and @entity5 . MR demonstrated lesions well in all categories. Midline lesions were best imaged sagittally, and lesions of paired structures, axially. The coronal plane was useful in evaluating the superoinferior extent of lesions and in defining the extent of @entity3329 . T1-weighted sequences were sufficient to depict most congenital and @entity5409 . T2-weighted sequences were useful in demonstrating the extent of @entity5 and the position of ectopic gonads. Ultrasonography (US) was also performed in 45 cases. MR and US delineated lesions equally well in 25 cases (55.5%), MR was superior in 19 (42.4%), and US was superior in one (2.2%). Computed tomography (CT) was performed in 13 cases. MR and CT delineated lesions equally well in eight cases (61.5%), MR was superior in four (30.8%), and CT was superior in one (7.7%).
