50P Linear tumor regression of rectal cancer in daily MRI during preoperative chemoradiotherapy: An insight of tumor regression velocity for personalized cancer therapy

Abstract

Neoadjuvant chemoradiotherapy (CCRT) is the current standards of care for locally advanced rectal cancer. Precise observation of tumor during CCRT with daily MRI can provide real-time treatment sensitivity and tumor biology, enabling patient-driven treatment decision at early phase.