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Abstract #1768

An initial exploration of spiral imaging for quantitative fetal T2* mapping on a low-cost low-field MRI scanner

Jordina Aviles Verdera1,2, David Leitao1,2, Daniel West1,2, Joseph V Hajnal 1,2, Shaihan Malik1,2, Raphael Tomi-Tricot1,2,3, and Jana Hutter1,2
1Center for the Developing Brain, School of Biomedical Engineering & Imaging Sciences, King's College London, London, United Kingdom, 2Biomedical Engineering Department, School of Biomedical Engineering & Imaging Sciences, King's College London, London, United Kingdom, 3MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom

Synopsis

Keywords: Low-Field MRI, Data AcquisitionFetal MRI is an important complementary technique to ultrasound to monitor fetal health. Low-field MRI benefits from reduced distortion, increased B1 homogeneity, wider bore sizes for maintained field homogeneity and longer T2*. The latter is particularly beneficial for single-shot techniques as it allows more flexible and longer read-out strategies. This abstract explores, for the first time, spiral read-out for fetal brain T2* relaxometry and offers preliminary quantitative fetal brain T2* results. Next steps include further exploration of flexible read-out strategies such as undersampled interleaved spirals to work towards higher temporal resolution and motion robustness.

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Keywords