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[Pulse triggering in magnetic resonance tomography in high-field strength]
J H Langkowski1, M Heller, R Maas
1Radiologische Klinik des Universitätskrankenhauses Hamburg.
Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|September 1, 1987
Summary
This study introduces a simple finger-based gating method to reduce pulsation artifacts in brain stem MRI scans. This technique improves image quality, offering a viable alternative to cardiac gating for head and neck imaging.
Area of Science:
- Medical Imaging
- Biomedical Engineering
- Neuroimaging
Context:
- Pulsation artifacts are a common issue in Magnetic Resonance Imaging (MRI), particularly affecting the brain stem.
- Existing cardiac gating methods can be complex or unsuitable for certain patient groups.
- High-quality imaging is crucial for diagnosing neurological conditions in the head and neck region.
Purpose:
- To evaluate a novel, simple gating method using a finger plethysmograph to minimize pulsation artifacts in brain stem MRI.
- To assess the diagnostic value of MRI images acquired using this new gating technique.
- To compare this method with established cardiac gating techniques for head and neck imaging.
Summary:
- A 1.5 tesla MR-imager was used with a finger plethysmograph to register blood pulsations, effectively gating images.
- Significant minimization of movement artifacts was achieved, leading to diagnostically valuable images in patients with strong pulsation artifacts.
- The developed method shows promise as a simple and effective alternative to cardiac gating for head and neck MRI.
Impact:
- Improved diagnostic accuracy for brain stem and head/neck pathologies by reducing motion artifacts.
- Provides a more accessible and potentially less invasive gating solution for MRI procedures.
- Offers a valuable alternative for patients who may not be suitable for or tolerate traditional cardiac gating methods.