Multi-Planar Reconstruction

MPR Instructions for the Siemens Prisma

If your protocol requires Multi-Planar Reconstruction (MPR) of structural data to accurately position your imaging prescription (e.g., single-voxel spectroscopy), please follow the instructions below to effectively complete the MPR process on the Siemens Prisma at CFMRI

  • Open the patient browser using the menu bar (“Patient > Patient Browser”)

  • Select your exam in the local database

_images/mpr1.png

  • Select the appropriate dataset from the exam

  • This is typically a sagittal T1 or T2 dataset

_images/mpr2.png

  • From the patient browser window (while your T1 or T2 is highlighted), select “Applications > 3D > MPR”

_images/mpr3.png

  • A window may appear asking if you want to load the new series

  • Select “Yes”

_images/mpr4.png

  • Select the sagittal view in the 3D viewer task card

_images/mpr5.png

  • Use the parallel range icon to open the “3D Parallel Ranges” GUI

_images/mpr6.png

  • Select the axial slice icon

  • NOTE: Make sure the “Presets” field is on the default setting

  • Deselect the icon shown below (this gives you more flexibility when configuring up your MPR)

_images/mpr7.png

  • Update the parameters in the GUI to ensure appropriate coverage

  • In general, using an “image thickness” of ~1 mm, a “distance between images” of 1 mm, and ~200 “images” (slices) provides ample coverage of the brain

  • After updating the parameters in the GUI, hit “Start”

_images/mpr8.png

  • Use the menu bar (“Patient > Save As”) to save the reconstructed axial data

_images/mpr9.png

  • Update the name of the new dataset to reflect the plane of the reconstructed images (default series name is generic “MPR Range”)

_images/mpr10.png _images/mpr11.png

  • Return to the parallel ranges GUI and select the coronal slice icon

  • The parameters used in the axial recon should auto-populate and are most likely sufficient (check to be sure)

  • If the coverage is sufficient (green vertical lines on the sagittal image), click “Start”

_images/mpr12.png

  • Use the menu bar (“Patient > Save As”) to save the reconstructed coronal data

_images/mpr13.png

  • Update the name of the new dataset to reflect the plane of the reconstructed images (default is generic “MPR Range”)

_images/mpr14.png _images/mpr15.png

  • Two new datasets should appear in the patient browser (“axial_mpr” & “coronal_mpr” in the images below)

_images/mpr16.png _images/mpr17.png

  • Click and drag the new datasets (and your original sagittal dataset) into your active session

  • You can now use the sagittal, axial (transversal), and coronal structural data to accurately position your scan prescription

  • The image below is meant to guide your procedure but displays a phantom scan instead of human data

_images/mpr18.png