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[Reduction of accompanied deployment failure artifacts using a thick slice sensitivity map to assist with array
Nihon Hoshasen Gijutsu Gakkai Zasshi
|August 22, 2014
Summary
Array spatial sensitivity encoding technique (ASSET) artifacts can be reduced by using a thicker reference scan slice. This method effectively minimizes deployment failure artifacts and suppresses noise in ASSET imaging.
Area of Science:
- Medical Imaging
- Radiology
- Magnetic Resonance Imaging (MRI)
Context:
- Array spatial sensitivity encoding technique (ASSET) is a parallel imaging (PI) method requiring a reference scan (Ref).
- Differences between ASSET and Ref scans can cause artifacts, particularly in abdominal imaging due to respiratory motion and susceptibility effects near the diaphragm and lung field.
- Liver imaging is susceptible to motion and susceptibility artifacts impacting image quality.
Purpose:
- To investigate the efficacy of a thick slice sensitivity map in reducing deployment failure artifacts in ASSET.
- To optimize ASSET imaging parameters for improved artifact reduction and noise suppression.
Summary:
- Increasing the slice thickness of the reference scan (Ref) was found to effectively reduce deployment failure artifacts in ASSET imaging.
- The proposed method also demonstrated noise suppression capabilities.
- Data indicates that a thicker Ref scan slice is a viable strategy for enhancing ASSET image quality.
Impact:
- Provides a method to improve the diagnostic quality of ASSET MRI scans, particularly for abdominal applications.
- Reduces artifacts that can obscure anatomical details, leading to more reliable diagnoses.
- Offers a simple yet effective technique for MRI artifact mitigation.
