Amersham

Researchers are studying how to improve the accuracy of MRI scans in identifying early-stage rectal cancer and significant rectal polyps. Early-stage rectal cancers grow partially into the bowel wall and can often be treated with local procedures that preserve the bowel, avoiding major surgery and its risks. Many patients are currently over-treated due to inaccurate MRI staging, leading to unnecessary major surgery or radiotherapy. The study focuses on a new MRI reading method called PRESERVE that has shown higher accuracy in identifying early rectal cancers suitable for local excision. The study involves training radiologists across 20 hospitals in the PRESERVE MRI reading method to better stage early rectal cancers and significant polyps. MRI scans are recommended before removal of rectal polyps that are 20mm or larger or have features suspicious for cancer. Radiologists will be trained to use the PRESERVE system to improve diagnostic accuracy and help guide treatment choices, aiming to increase the number of patients offered organ-preserving surgery. Participants will be monitored by comparing MRI reports before and after the radiologist training over one year. Researchers will measure the impact of the training on the accuracy of tumor staging and whether more patients receive local procedures instead of major surgery. This study will help determine if the new approach can be widely adopted to improve patient outcomes and preserve quality of life.