Evaluation of the role of pre-operative magnetic resonance imaging in the management of XXXX .

@entity1 @entity5 @entity189 @entity1442 @entity3067
OBJECTIVES: This study assesses the ability of body coil magnetic resonance imaging (MRI) to pre-operatively stage mural penetration, nodal status and @entity3067 ( @entity3067 ) involvement of @entity5 . @entity1 AND METHODS: Between 1995 and 1997, MRI using a body coil was performed in consecutive @entity1 with primary @entity189 . Group A: 67 @entity1 underwent surgery without long course neo-adjuvant therapy. Predicted @entity5 stage was compared to the histology of the specimen. Group B: 21 @entity1 with MRI evidence of @entity1442 , underwent long course neo-adjuvant therapy followed by repeat MRI prior to surgery. The second scan assessed response to treatment and likelihood of @entity3067 involvement at subsequent surgery. RESULTS: Group A: Accuracy of pre-operative staging was: 'T' stage - 54%, 'N' stage - 77%, involvement of @entity3067 by @entity5 - 97%. Group B: After long course neo-adjuvant therapy the second MRI scan was 95% accurate in predicting @entity3067 involvement by @entity5 . CONCLUSION: In this study pre-operative @entity5 staging with MRI and a body coil lacks accuracy in predicting mural penetration and nodal involvement. Body coil MRI can accurately predict the potential for @entity3067 involvement. This technique may help determine which @entity1 require long course neo-adjuvant therapy.
