Advanced MR Technique for the Prediction of a Complete Response Following Neoadjuvant Chemoradiotherapy in Patients with Locally Advanced Rectal Cancer: A Comparative Study Between DWI b2000 and b1000

Background/Objectives: From the viewpoint of personalized medicine, it is important to properly select patients with a complete response (CR) after neoadjuvant chemoradiotherapy (nCRT) because they are candidates for "watch-and-wait" management in locally advanced rectal cancer (LARC). The aims of this study were to evaluate the added value of diffusion-weighted imaging (DWI) b2000 to high-resolution T2-weighted images (HR-T2WI) and to compare the diagnostic performance of DWI b2000 and b1000 for assessing a CR in patients with LARC after nCRT.