Assessment of Lower Limb Artery Stent Placement with 3D Variable Refocusing Flip Angle Turbo Spin Echo : A Report on Two Cases

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  • SHIMADA Yuki
    Department of Radiology, Tokyo Medical University Ibaraki Medical Center
  • HIGASHITANI Michiaki
    Department of Cardiovascular Medicine, Tokyo Medical University Ibaraki Medical Center
  • HASHIMOTO Junichi
    Department of Radiology, Tokyo Medical University Ibaraki Medical Center
  • TSUMURAYA Akio
    Department of Radiology, Tokyo Medical University Ibaraki Medical Center

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  • 3D VRFA TSEが下肢動脈のステント内腔疎通性評価に有用であった2症例

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Abstract

<p>　Recent studies have reported an increase in the incidence of lower extremity arterial disease in Japan secondary to rapid population aging and an increase in the numbers of diabetes and dialysis cases. Although widely used, the long-term outcomes of endovascular therapy (EVT) remain unclear. Regular evaluation to monitor restenosis is extremely important. Magnetic resonance angiography is a non-invasive approach to evaluate lower extremity arteries without contrast enhancement or radiation exposure. However, stent lumens present challenges for evaluation in some cases secondary to magnetic susceptibility artifacts. Previous studies have reported the usefulness of the volume isotropic turbo spin-echo (T1 VISTA) method, which is based on three-dimensional variable refocusing flip angle turbo spin echo images for in-stent evaluation after carotid artery stenting. In this study, we describe our findings in two patients in whom the T1 VISTA method was useful to evaluate leg artery stent patency following EVT.</p>

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