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Abstract #2570

In-Stent Lumen Visualization Using Intravascular MRI and a BSSFP Sequence

Guillaume Gilbert1, Gilles Soulez1, Gilles Beaudoin1

1Department of Radiology, Centre Hospitalier de l'Universit de Montral, Montreal, Quebec, Canada

In this abstract, the use of an intravascular loopless antenna is investigated as a way to reduce radiofrequency shielding for an improved visualization of the vessel lumen inside a metallic vascular stent. Measurements are performed on a dedicated vascular phantom using a bSSFP sequence. In comparison to traditional surface MRI, the use of the intravascular antenna is shown to lead to an improved lumen visualization as a result of the intrinsically higher sensitivity of the intravascular antenna and a reduction of the radiofrequency shielding of the stent during signal reception.