- 00000018WIA307B8870GYZ
- id_400257461.7
- Aug 10, 2022 6:51:18 PM
New patient workflow
For oblique scans: If your axial scan uses a 50 cm FOV in the XY direction, as you move from an axial to coronal view, the FOV does not shift from 50 cm to 45 cm. The result is that as the oblique angle increases above 45 degrees, the image quality at the edges of the coronal FOV is degraded, for example image distortion and reduced fat saturation. Therefore, consider using a smaller FOV. This is particularly critical for musculoskeletal exams.
| Warning | |
|---|---|
The tests commonly employed to determine MR Conditional implant heating safety (standard, ASTM F2182, ASTM.org), require quadrature excitation. Heating results for non-quadrature excitation (such as parallel transmit, MultiDrive, or elliptical drive) are unknown.For patients with MR Conditional implants or devices, applying Preset or Optimized RF Drive Modes may violate the MR Conditional specifications.
| |
| CAUTION | |
|---|---|
For patients with MR Conditional metal implants or devices, applying Preset or Optimized RF Drive Modes may violate the MR Conditional specifications. | |
| CAUTION | |
|---|---|
Never use a Flex coil to scan a patient’s head. The SAR rating is different for flex coils versus any head coil. | |
Slice order
When your protocol only has an explicit prescription and within scan you click a Graphic Rx viewport, only the number of slices prescribed in scan is retained and not the explicit start/end locations. When this occurs, the system uses default normals one of which is a right-to-left acquisition order for new prescriptions.
If you have saved the protocol with explicit locations that include a slice order of left-to-right, but you then click a Graphic Rx viewport to change the slice locations, the system automatically changes the slice order to right-to-left, the default slice order. To avoid this switch in slice order, modify the slice location or range by typing in values in the explicit text fields.
If you want to click a Graphic Rx viewport to see intersections before scanning, then be sure to save the graphic prescription in your protocol.