Abstract #3891

Feasibility of Fetal Fat Volume Assessment using 3D Water-Fat MRI

Stephanie Giza¹, Craig Olmstead², Kevin Sinclair¹, Charles A McKenzie^1,3, and Barbra de Vrijer^3,4

¹Medical Biophysics, Western University, London, ON, Canada, ²Schulich School of Medicine and Dentistry, Western University, London, ON, Canada, ³Division of Maternal, Fetal and Newborn Health, Children's Health Research Institute, London, ON, Canada, ⁴Obstetrics and Gynecology, Western University, London, ON, Canada

Conventional ultrasound techniques perform adequately in assessment of fetal size in obese mothers but fail to identify the fetus that is chronically stressed inside the womb. A reliable MRI measurement of fetal fat volume and distribution would therefore be a powerful tool in the assessment of fetal condition. Using a 3D LAVA-Flex sequence during maternal breath hold, fat signal fraction images were generated to measure the fat volume of the fetus, while correcting for partial volume effects. 3D water-fat MRI was found to provide a reliable measurement of fetal fat volumes that could be used to assess size and growth.

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