MICCAI 2022 Daily – Tuesday

In adult brain MRI , a patient remains still while 2D slices are acquired one by one. Those 2D slices can then be put together into a stack to produce a 3D volume of the human brain. However, fetal brain MRI is more challenging due to random and unpredictable fetal motions inside the mother’s body during the exam . When acquiring the 2D slices one by one, there is usually motion between each. If those slices are put together into a stack, there will be interslice motion artifacts leading to misalignment, rendering it impossible to get a clean, high-quality 3D volume. “ SVoRT is designed to solve this problem by registering those 2D slices into a 3D atlas space , ” Junshen explains. SVoRT: Iterative Transformer for Slice-to-Volume Registration in Fetal Brain MRI 4 DAILY MICCAI Tuesday Oral Presentation Junshen Xu is a PhD student at MIT, under the supervision of Elfar Adalsteinsson. His paper proposes a solution to the problem of slice-to- volume registration in fetal brain MRI. He speaks to us ahead of his oral presentation this morning .