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Imaging the cerebral hemispheres: technical issues.

M A Horsfield1

  • 1Division of Medical Physics, University of Leicester, Leicester, UK. mah5@le.ac.uk

Journal of the Neurological Sciences
|December 22, 1999
PubMed
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Magnetic resonance imaging (MRI) of the brain faces challenges with advanced techniques like diffusion-weighted imaging and functional MRI. Improvements in these sophisticated MRI methods are crucial for better cerebral hemisphere imaging quality.

Area of Science:

  • Medical Imaging
  • Neuroscience
  • Radiology

Background:

  • Cerebral hemisphere imaging using magnetic resonance imaging (MRI) is essential for neurological diagnostics.
  • Standard MRI protocols for the brain are generally well-established.
  • Advanced MRI techniques introduce unique challenges in image acquisition and interpretation.

Purpose of the Study:

  • To identify current challenges in applying advanced MRI techniques to the cerebral hemispheres.
  • To review potential strategies for enhancing image quality in these applications.
  • To provide an overview of the future prospects for improved cerebral MRI.

Main Methods:

  • Review of existing literature on advanced MRI techniques applied to the brain.
  • Analysis of common artifacts and limitations associated with diffusion-weighted imaging (DWI), functional MRI (fMRI), and MR spectroscopy (MRS).

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  • Discussion of emerging technologies and methodological improvements.

    • Main Results:

    • The cerebral hemispheres themselves do not pose unique anatomical challenges for MRI.
    • Advanced techniques, including DWI, fMRI, and MR spectroscopy, are the primary sources of imaging difficulties.
    • Image quality is often compromised by motion artifacts, signal-to-noise ratio limitations, and susceptibility artifacts specific to these advanced methods.

    Conclusions:

    • Addressing the technical challenges of advanced MRI sequences is key to improving diagnostic accuracy.
    • Further research and development are needed to optimize protocols for DWI, fMRI, and MRS in the cerebrum.
    • Enhanced MRI techniques hold significant promise for advancing our understanding and diagnosis of neurological conditions affecting the cerebral hemispheres.