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Abstract #3425

Clinical evaluation of k-space correlation informed motion artifact detection in segmented multi-slice MRI

Ikbeom Jang1,2, Malte Hoffmann1,2, Nalini Singh3,4, Yael Balbastre1, Lina Chen5, Marcio Aloisio Bezerra Cavalcanti Rockenbach5, Adrian Dalca1,2,3, Iman Aganj1,2, Jayashree Kalpathy-Cramer1,2, Bruce Fischl1,2,3,4, and Robert Frost1,2
1Department of Radiology, Massachusetts General Hospital, Boston, MA, United States, 2Department of Radiology, Harvard Medical School, Boston, MA, United States, 3Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA, United States, 4Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, United States, 5Data Science Office, Mass General Brigham, Boston, MA, United States

Synopsis

Keywords: Artifacts, Artifacts, Motion artifact, Image Quality, NeuroimagingMotion artifacts can negatively impact diagnosis, patient experience, and radiology workflow especially when a patient recall is required. Detecting motion artifacts while the patient is still in the scanner could potentially improve workflow and reduce costs by enabling immediate corrective action. We demonstrate in a clinical k-space dataset that using cross-correlation between adjacent phase-encoding lines can detect motion artifacts directly from raw k-space in multi-shot multi-slice scans. We train a split-attention residual network to examine the performance in predicting motion artifact severity. The network is trained on simulated data and tested on real clinical data.

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Keywords