MRI Protocols Post-Processing

Miscellaneous MRI Post- Processing

Obtaining Numeric ADC Values

How to obtain actual numeric ADC values (rather than a map) for a region of interest on our Philips scanners:

ADC Values
  1. Open the ADC image in the "Basic Viewing" screen (where the hardcopy options are).
  2. Right click on the image, select ROI from the menu. You can choose the shape desired.
  3. Draw an ROI where desired.
  4. A number will come up on the ROI that you just drew. Right-click on the number to get the sub-menu for the number.
  5. From the sub-menu, choose "Statistics".
  6. A new window will open.
  7. The "Mean" value is the ADC value (to get regular ADC units divide by 1000000 aka 10-6). It is on the first line of data (below image).
  8. You can save a screen capture of the ADC map with the statistical data by choosing a system screen capture.
  9. Push screen capture to pacs.

Seperating Phases for CINE Sequences

  1. Go to the Advanced Viewing page (the “pumpkin” button on upper left)
  2. Choose the cine sequence from the thumbnails
  3. Right click on the thumbnail, and choose “IMAGE ALGEBRA
  4. The image will open on the right ride of the screen in all 4 boxes
  5. Start with the upper left box:
    1. You’ll see 4 grey bars. These are actually two sets of bars, broken down into “Phases” and then “Types”.
    2. Using the “Types” set:
      Slide both bars all the way to the right to choose the 3rd phase (the gray one). It should be the same in all three windows.
    3. Next, using the “Phases” set”:
      click on the blue icon to the right of the “A” button and the “B” button (it looks like stacked files)
    4. The bar will turn solid grey, and all of the phases will be selected.
  6. Move your mouse to the menu bar directly above the image window.
    1. From the drop down menu, choose “Addition: (A+B)”.
    2. Click on the “star man” icon to the left to generate series.

Volume Analysis

Volumetric 1
Volumetric 2
Volumetric 3


Axial Cine Post Processing

This is meant to be a quick post-processing guide for post-processing a Axial Cine and adding CINE Axial to patients with headache or Chiari.  Contact Jeff Pollock with any questions or comments regarding image quality.

MR Post Processing, Axial Cine, MRI Protocols