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Abstract #4832

Quantitative comparison of time-SLIP and Triple Inversion Recovery (TIR) non-contrast enhanced MRI for renal angiography

Suzanne Franklin1, Torben Schneider2, Marcelo E Andia3, Markus Henningsson4, and Rene M Botnar4

1Eindhoven University of Technology, Eindhoven, Netherlands, 2Philips Healthcare, Guildford, United Kingdom, 3Pontificia Universidad Católica de Chile, Escuela de Ingeniería, Santiago, Chile, 4King’s College London, Division of Imaging Sciences, and Biomedical Engineering, St. Thomas' Hospital, London, United Kingdom

Renal artery stenosis (RAS) has been associated with hypertension, chronic kidney disease and an increased risk of vascular events. This study quantitatively compares two non-contrast enhanced magnetic resonance angiography (NC-MRA) techniques for renal angiography, based on SNR, CNR, vessel sharpness and number of renal branches. TIR has shown promising results in suppressing background signal and provided overall better image quality than outflow time-SLIP. TIR has the advantage over time-SLIP that tissues can be nulled over a wide range of T1 -values. To further shorten scan time the TIR technique could be combined with more advanced image based motion correction techniques.

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