• Object ID: 00000018WIA30CB1970GYZ
  • Topic ID: id_40024439 Version: 1.3
  • Date: Mar 28, 2022 4:45:23 PM

T1 Map workflow

About this task

Use these steps to compute the T1 relaxation time in milliseconds. The data sets for the application are provided by the following cardiac applications: T1MAP - SPGR and T1MAP - FIESTA. These acquisitions sample the T1 recovery curve at multiple preparation delay times that allow the application to measure T1 using curve fitting methods.

T1MAP is commercially known as CardioMaps.

Step-by-step instructions

  1. From the header area of the screen, click the Image Management icon () to open the Image Management work area.
  2. From the series area on the Patient List, select the desired T1 Mapping series.
    The T1Mapping series are not a primary series, for example 3, but rather the scan location * 100 (series 300, 301, 302...).
  3. From the browser, right-click and select T1Mapping.
    Note: There is a T1MAP inline task that can be added to T1MAP-SPGR or T1MAP-FIESTA, which performs the remaining steps. For details, see Add post-process task.

    Result

    The T1 Map review step in READY View is launched.
    • The left viewport displays the T1 Map from the acquisition (T1MAP - SPGR or T1MAP - FIESTA).
    • The right viewport displays the T1 map for the same image.
      Figure 1. T1 Map review step in READY View screen


  4. Locate the area of interest.
    • To view a particular TI or phase time that optimizes image contrast, click the TI or phase active annotation located at the top of the viewport and select a TI time from the menu.
      Figure 2. TI time menu for T1 MAP SPGR or FIESTA with IR Prepared


      Figure 3. Phase time menu for T1 MAP SPGR or FIESTA with SR Prepared


    • For more image selection details, see Scroll through the images.
  5. Adjust the W/L and magnification.
    For details, see: