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Abstract #4825

Follow-up non-contrast-enhanced MRA using balanced turbo field-echo sequence for visceral artery aneurysm after endovascular therapy

Nobuyuki Kawai1, Yoshifumi Noda1, Tetsuro Kaga1, Kimihiro Kajita2, Hiroshi Kawada1, and Masayuki Matsuo1
1Radiology, Gifu University, Gifu, Japan, 2Radiology Services, Gifu University Hospital, Gifu, Japan

Synopsis

Keywords: Vessels, Blood vesselsContrast-enhanced MRA has been shown to be a safe and effective way to provide posttreatment visceral artery aneurysm (VAA) follow-up. However, this study cannot be performed for those who have contraindications to MR contrast agents. Balanced turbo field-echo (bTFE) sequence enables static and moving fluids to be shown as high intensity without the use of gadolinium. We assessed the feasibility of follow-up non-contrast-enhanced MRA using bTFE sequence for posttreatment VAA. Combined bTFE and unenhanced fat-suppressed T1-wighted (FS-T1W) images demonstrated excellent performance for the diagnosis of aneurysm reperfusion comparable to combined dynamic contrast-enhanced and unenhanced FS-T1W images.

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