Magnetic resonance imaging was performed on a 1.5-T system (Optima MR450w, GE Healthcare, Milwaukee, WI) with dedicated 16-channel receive-only RF coils; slice thickness 4 mm and matrix size of 512 × 512 were used.
However, in the 119 patients who underwent a face-to-face neurological examination at follow-up, a standardized contrast enhanced MRI was also performed on a GE General Electric Medical Systemss, Milwaukee, WI) Signa 1.5T MR scanner using birdcage head coils, a slice thickness of 3 mm and no interslice gap.
Current MR techniques using phased-array torso coils, thin slices, and dynamic gadolinium-enhanced breath-hold gradient-echo (GRE) sequences are optimal for imaging pancreatic carcinoma, and in some studies have outperformed CT especially in the detection of smaller tumors.
The area from the suprasellar cistern to the inferior margin of the sterna end of the clavicle was examined with a head-and-neck combined coil in a slice thickness of 5 mm with 0.5 mm interslice gap.
In addition, high resolution 1×1×1 mm3 T1-weighted MRI images showing the complete skull were acquired for each participant in sagittal orientation on a Siemens/Varian 3T system fitted with a birdcage head coil (210 sagittal slices; in-plane matrix size 256×256; FOV 256×256×210 mm3; TR 11.2 ms; TE 4.85 ms; TI 300 ms; flip angle 12 degrees).
Try using a a sharp knife (or, in a pinch, one blade of a pair of scissors) to slice these coiled strips and make them easier for the shredder to process.
This improvement in accuracy with a surface coil was achieved through thin slice acquisitions with high spatial resolution parameters and by obtaining images as true axial scans of the tumour itself, rather than of the pelvis as a whole.
One course consisted of a large martini glass stuffed with a whelk in its shell, clam broth, fish sauce, apple slices and a coil of noodles made from a root nobody seemed able to translate, all marinating in Chinese yellow wine.
Whole cerebrum activity was measured using a Philips Intera 3 T Quaser, eight-channel head coil, 32 axial gradient-echo slices, 3 mm thickness, no gap, single shot echo planar imaging, echo time: 30 ms, repetition time: 1.5 s.
Morphologic images were acquired with body coil using TSE T2-weighted imaging (slice thickness 8 mm, no gap, matrix 256 × 154, in-plane resolution 1.7 × 1.3 mm, TR depending upon RR interval, TE 78 ms), and TSE T1-weighted imaging (slice thickness 8 mm, no gap, TR depending upon RR interval, TE 6,9 ms, flip angle 180°).
