Ultra-short Echo-time MR Angiography Combined with a Modified Signal Targeting Alternating Radio Frequency with Asymmetric Inversion Slabs Technique to Assess Visceral Artery Aneurysm after Coil Embolization
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- Hamamoto Kohei
- Department of Radiology, National Defense Medical College Department of Radiology, Jichi Medical University Saitama Medical Center
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- Chiba Emiko
- Department of Radiology, National Center Hospital, National Center of Neurology and Psychiatry
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- Oyama-Manabe Noriko
- Department of Radiology, Jichi Medical University Saitama Medical Center
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- Yuzawa Hironao
- Department of Radiology, Jichi Medical University Saitama Medical Center
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- Edo Hiromi
- Department of Radiology, National Defense Medical College
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- Suyama Yohsuke
- Department of Radiology, National Defense Medical College
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- Shinmoto Hiroshi
- Department of Radiology, National Defense Medical College
Abstract
<p>Contrast-enhanced CT and MR angiography are widely used for follow-up of visceral artery aneurysms after coil embolization. However, potential adverse reactions to contrast agents and image deterioration due to susceptibility artifacts from the coils are major drawbacks of these modalities. Herein, we introduced a novel non-contrast-enhanced MR angiography technique using ultra-short TE combined with a modified signal targeting alternating radio frequency with asymmetric inversion slabs, which could provide a serial hemodynamic vascular image with fewer susceptibility artifacts for follow-up after coil embolization.</p>
Journal
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- Magnetic Resonance in Medical Sciences
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Magnetic Resonance in Medical Sciences 23 (1), 110-121, 2024
Japanese Society for Magnetic Resonance in Medicine