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Inversion recovery snapshot FLASH MR imaging.

A Haase1, D Matthaei, R Bartkowski

  • 1University of Bremen, F.R.G.

Journal of Computer Assisted Tomography
|November 1, 1989
PubMed
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This study introduces snapshot fast low angle shot (FLASH) magnetic resonance (MR) imaging for real-time parameter visualization. The technique enables dynamic T1 contrast imaging in under 4 seconds, useful for abdominal and tumor imaging.

Area of Science:

  • Medical Imaging
  • Magnetic Resonance Imaging
  • Radiology

Background:

  • Real-time imaging of magnetic resonance (MR) parameters is crucial for dynamic physiological studies.
  • Snapshot fast low angle shot (FLASH) techniques offer rapid image acquisition.
  • Dynamic inversion recovery (IR) provides valuable T1 contrast information.

Purpose of the Study:

  • To describe a novel snapshot FLASH MR method for continuous dynamic inversion recovery (IR) T1 contrast.
  • To demonstrate the feasibility of rapid T1 mapping using this technique.
  • To illustrate the application of snapshot FLASH IR MR in vivo.

Main Methods:

  • Utilized a 64 x 128 FLASH tomogram acquired in <200 ms.
  • Employed a single 180-degree pulse preceding a series of FLASH acquisitions.

Related Experiment Videos

  • Acquired 16 images to capture inversion recovery behavior within 4 seconds.

    • Main Results:

    • Successfully generated continuous dynamic inversion recovery (IR) T1 contrast in successive images.
    • Achieved total acquisition time of less than 4 seconds for 16 images.
    • Acquired representative snapshot FLASH IR MR images of rat abdomen and hepatic tumor.

    Conclusions:

    • Snapshot FLASH MR with dynamic IR is a rapid technique for T1 parameter imaging.
    • This method allows for real-time visualization of T1 contrast dynamics.
    • The technique shows potential for in vivo abdominal and tumor imaging applications.