Keywords: Cancer, Acquisition Methods
Motivation: DWI is important for rectal cancer (RC) assessment. FOCUS-MUSE is an advanced DWI technique which holds promise for superior image quality. However, its clinical application in primary RC remains uncertain.
Goal(s): Compares the performance of FOCUS-MUSE with that of FOCUS, MUSE, and single-shot EPI DWI for primary RC assessment.
Approach: 45 patients were enrolled, and each was imaged using the four sequences. Signal-to-noise-ratio (SNR), contrast-to-noise-ratio (CNR), and T stage were assessed.
Results: FOCUS-MUSE exhibited sufficient SNR and the highest CNR of RC lesion. It was also the best sequence to demonstrate subtle tumor feature for more accurate T staging of primary RC.
Impact: Our study showed FOCUS-MUSE provided improved image quality of DWI for primary RC T staging. The application of FOCUS-MUSE DWI may be beneficial for evaluating and managing RC.
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