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Multi-Planar Reconstruction
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MPR Instructions for the Siemens Prisma
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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

.. image:: images/mpr_images_final/mpr1.png
  :width: 800

* Select the appropriate dataset from the exam
* This is typically a sagittal T1 or T2 dataset

.. image:: images/mpr_images_final/mpr2.png
  :width: 800

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

.. image:: images/mpr_images_final/mpr3.png
  :width: 800

* A window may appear asking if you want to load the new series
* Select "Yes"

.. image:: images/mpr_images_final/mpr4.png
  :width: 800

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

.. image:: images/mpr_images_final/mpr5.png
  :width: 800

* Use the parallel range icon to open the "3D Parallel Ranges" GUI

.. image:: images/mpr_images_final/mpr6.png
  :width: 800

* 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)

.. image:: images/mpr_images_final/mpr7.png
  :width: 800

* 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"

.. image:: images/mpr_images_final/mpr8.png
  :width: 800

* Use the menu bar ("Patient > Save As") to save the reconstructed axial data

.. image:: images/mpr_images_final/mpr9.png
  :width: 800

* Update the name of the new dataset to reflect the plane of the reconstructed images (default series name is generic "MPR Range")

.. image:: images/mpr_images_final/mpr10.png
  :width: 800

.. image:: images/mpr_images_final/mpr11.png
  :width: 800

* 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"

.. image:: images/mpr_images_final/mpr12.png
  :width: 800

* Use the menu bar ("Patient > Save As") to save the reconstructed coronal data

.. image:: images/mpr_images_final/mpr13.png
  :width: 800

* Update the name of the new dataset to reflect the plane of the reconstructed images (default is generic "MPR Range")

.. image:: images/mpr_images_final/mpr14.png
  :width: 800

.. image:: images/mpr_images_final/mpr15.png
  :width: 800

* Two new datasets should appear in the patient browser ("axial_mpr" & "coronal_mpr" in the images below)

.. image:: images/mpr_images_final/mpr16.png
  :width: 800

.. image:: images/mpr_images_final/mpr17.png
  :width: 800

* 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

.. image:: images/mpr_images_final/mpr18.png
  :width: 800