Related Experiment Videos
Common SENSE (sensitivity encoding using hardware common to all MR scanners): a new method for single-shot segmented
David W Carmichael1, Andrew N Priest, Enrico De Vita
1University College London, Department of Medical Physics and Bioengineering, London, United Kingdom. d.carmichael@medphys.ucl.ac.uk
Magnetic Resonance in Medicine
|July 21, 2005
Summary
A novel pulse sequence segments image acquisition into two readouts, enabling faster data collection. This method improves echo planar imaging (EPI) at high fields by reducing distortion and blurring.
Area of Science:
- Magnetic Resonance Imaging
- Image Acquisition Techniques
Background:
- Echo planar imaging (EPI) at high magnetic fields often suffers from distortion and blurring.
- Current methods like sensitivity encoding (SENSE) can introduce artifacts in segmented EPI.
Purpose of the Study:
- To introduce a new pulse sequence for segmented image acquisition.
- To improve the quality and efficiency of echo planar imaging (EPI) at high fields.
Main Methods:
- A novel pulse sequence generates two magnetization components with distinct spatial profiles.
- Each component is measured in separate readouts, creating images with complementary sensitivity profiles.
- Reduced data matrices are used for faster acquisition, with images combined using SENSE-compatible reconstruction.
Main Results:
- The method produces two images with near-identical contrast and complementary sensitivity profiles.
- Acquisition time is reduced due to the use of smaller data matrices.
- Artifacts like ghosting, common in segmented EPI, are avoided.
Conclusions:
- This technique offers a promising approach to enhance EPI performance at high fields.
- It effectively reduces distortion and blurring, leading to improved image quality.
- The method is compatible with parallel imaging and partial Fourier techniques.