In our practice, patients fast for 4 hours before the MRI examination so that the gallbladder is distended and it is possible to adequately assess the exocrine response to secretin. Negative oral contrast is useful to reduce the signal from overlying stomach and duodenum. Pineapple and blueberry juice have been used as oral contrast agents . The manganese content of these juices results in increased signal on T1-weighted images and reduced signal on T2-weighted images. We prefer the use of 300 mL of proprietary silicone-coated superparamagnetic iron oxide particle suspension (ferumoxsil, GastroMark, Mallinckrodt Medical) taken orally a few minutes before the MRI examination.
Popular Posts
-
Like any technique, fMRI has advantages and disadvantages, and in order to be useful, the experiments that employ it must be carefully desi...
-
Normal MRI Anatomy The pectoralis tendon is best seen on axial T1 and T2-weighted images as a curvilinear low-signal band inserting o...
-
MRI Prostrate Spectroscopy SINGLE VOXEL Planning --> MRI Prostrate Spectroscopy MULTI VOXEL Planning
-
MRI of the Right Lower Leg Clinical details: Technique: Multiplanar multisequence study including T1,T2, STIR and GRE weigh...
-
Position patient prone, head first into the scanner with arms by the side. Head to one side and chest relaxed onto the breast coil. ...
-
Axial Plane: Prescribe plane perpendicular to midshaft of the proximal phalanx of the thumb. Scan from 1st carp-metacarpal joint th...
-
--> Routine shoulder protocols are the most variable, but most include SHOULDER MRI SEQUENCES ...
No comments:
Post a Comment