Field of View in MRI Field of View (FOV) in MRI is known as FoV Read Sometime, FoV need to be adjusted to cover big area We are not encourage to just increase the FoV Read value, as it will increase the voxel size value and reduce image quality Proper […]
Wrap Around Artefact
What is Wrap Around Artefact? Usually happen in ISO MRI Brain Phase Oversampling Available in 2D scanning protocol Appear as dotted yellow line box Slice Oversampling Available in 3D scanning protocol The number of slice adjustment is under slice per slab How Wrap Around Artefact Can Happen? Low Phase Oversampling […]
Reduce MRI Scanning Time
What is GRAPPA? GeneRalized Autocalibrating Partial Parallel Acquisition Will combine multi-coils to become bigger coil Reduce scanning time Alternative Way Instead of GRAPPA Open Protocol — Routine Adjust the averages by reducing the value (1 step) Example: Current value 2 — become 1 However, this will reduce the SNR value. […]
Avoid Truncation Artefact
What is Truncation Artefact? Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. How to Eliminate Truncation Artefact? Open Protocol Click Routine Change the Phase Encoding Direction Next, click Contrast Activate Restore Magnitude
Specific Absorption Rate (SAR) Limit Pop-up
What is SAR? Will update later. What We Can Do When SAR Limit Window is Pop-up? Do not simply click Adjust Repetition Time (TR) or Echo Time (TE) If Reduce Flip Angle option is available, you can use this option. If not, please use this step: Click Open Protocol Click […]
MR Spectroscopy
Preparation of Planning MRS Load T1 MPRAGE Post Contrast images to 3D card for MPR process. Select Parallel Ranges tool to produce SAGITTAL and CORONAL images. Do not activate ‘Constant Number of Images’ button. Number of Images Image Thickness Distance Between Images Variable 4mm 5.2mm Adjust number of images to […]