MR Colonography at 3 Tesla: Comparison with 1.5 Tesla in vivo and in a colon model

Purpose: In a retrospective study MR colonography images were compared in routine examinations of patients screened for polyps and in a colon model with the question whether and to which degree image quality was improved at the higher field strength of 3.0 compared to 1,5 T. Methods: 128 MR colonography images of 40 patients, of whom 20 each had been scanned at 1,5 and 3,0 T using a 4 element phased array torso coil, respectively. At both fieldstrenghts imaging included T1-weighted fat-supressed spoiled gradient echo (T1w-fs-GE), T2/T1-weighted fast imaging employing steady state acquisition (FIESTA) and T2-weig…