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Abstract #1186

2D ungated PC-MRI for the exploration of small vessels in head and neck vascularisation

Agnès Paasche1, Jérémie Bettoni1, Stéphanie Dakpé1, and Olivier Balédent1

2D ungated PC-MRI could be accurate enough to assess cervicofacial vascularization where vessels are often less than 4 mm in diameter but hey are sensitive to the pulsatile flow and their accuracy and precision should be evaluate. We have designed a phantom model to determine the better MRI parameters for pulsatile flow in pipes of one millimeter of diameter. 108 sequences have been tested and 2 were selected as accurate and precise even in case of high pulsatility. The duration of the acquisition was 15 second. 2D ungated sequences should be suitable for daily clinical practice in small vessels evaluation.

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