{"id":14793,"date":"2024-10-23T14:05:15","date_gmt":"2024-10-23T18:05:15","guid":{"rendered":"https:\/\/med.virginia.edu\/radiology\/?p=14793"},"modified":"2026-07-16T13:10:57","modified_gmt":"2026-07-16T17:10:57","slug":"arun-krishnaraj-md-mph-co-authors-study-showing-mris-prediction-abilities-for-rectal-cancer","status":"publish","type":"post","link":"https:\/\/med.virginia.edu\/radiology\/2024\/10\/23\/arun-krishnaraj-md-mph-co-authors-study-showing-mris-prediction-abilities-for-rectal-cancer\/","title":{"rendered":"Arun Krishnaraj, MD, MPH, among Researchers Showing MRI’s Prediction Abilities for Rectal Cancer"},"content":{"rendered":"
\"UVA

Arun Krishnaraj, MD, MPH<\/p><\/div>\n

Edited from the original article by Joshua Barney at the UVA Health Newsroom<\/a>.<\/em><\/p>\n

Magnetic resonance imaging (MRI) can spare many rectal cancer patients from invasive surgery and lifelong side effects, according to a new study by researchers including Department of Radiology and Medical Imaging’s Associate Professor Arun Krishnaraj, MD, MPH<\/strong>.<\/a><\/p>\n

The findings, from Krishnaraj and his collaborators, indicate that MRI can predict patient outcomes and the risk of the tumor recurring or spreading for patients who have undergone chemotherapy and radiation.<\/p>\n

That information could be extremely useful in determining the best course of treatment and deciding whether a patient can avoid surgery in favor of a \u201cwatch and wait\u201d approach, the researchers say. In watch-and-wait, doctors continue to monitor patients for cancer recurrence or spread, holding off on surgery but potentially leaving them uncertain and anxious about the future.<\/p>\n

The information MRI can provide would be both useful for doctors and comforting for patients, the new findings suggest.<\/p>\n

\u201cAfter undergoing chemotherapy and radiation for rectal cancer, patients are understandably concerned whether their cancer is gone or whether there may be some leftover disease. Using newer MRI techniques, we are now able to predict much better than in the past whether any cancer remains and, if so, whether it will come back and spread,\u201d said Dr. Krishnaraj. \u201cNo one wants to get surgery if they can avoid it. Now we have a powerful tool to help patients and their doctors predict who would benefit from surgery after initial chemotherapy and radiation and who can likely avoid surgery.\u201d<\/p>\n

Rectal cancer is typically treated at first with radiation and chemotherapy, but some patients require what is known as \u201ctotal mesorectal excision\u201d \u2013 the removal of a substantial portion of their bowel. This can be lifesaving but it can also be life-changing: Side effects can include the need for a permanent colostomy bag and sexual dysfunction.<\/p>\n

To help patients make the best choices and get the best outcomes, Krishnaraj and his collaborators wanted to see if MRI could serve as a crystal ball for the effects of watch-and-wait. To do this, they analyzed the results of the Organ Preservation in Rectal Adenocarcinoma (OPRA) trial to see how MRI results aligned with patient outcomes. In total, they reviewed outcomes from 277 patients, with an average age of 58, who had the stage of their rectal cancer determined by MRI. The average length of the follow-up period was slightly more than 4 years.<\/p>\n

After crunching the numbers, the researchers determined MRI was an effective tool for predicting the patients\u2019 overall survival, the risk of their cancer returning and their chances for keeping their bowel intact.<\/p>\n

The promising MRI crystal ball can likely be made even more effective by combining it with data from endoscopies (visual inspections) after treatment, the OPRA Consortium researchers say. They are urging additional research on the potential of the combination, which they believe could offer doctors and patients a powerful new tool.<\/p>\n

\u201cI am optimistic that continued advancement in MRI and other tools like endoscopy will provide better information about future outcomes,\u201d Krishnaraj said. \u201cUltimately, I would love to get close to 99% predictive probability in better informing our patients about their potential risk for recurrence or spread of their cancers following treatment. We may not be there quite yet, but that is our goal.\u201d<\/p>\n

The researchers have published their findings in the scientific journal Radiology<\/em><\/a>. A complete list of the authors and their disclosures is included in the paper.<\/p>\n","protected":false},"excerpt":{"rendered":"

Edited from the original article by Joshua Barney at the UVA Health Newsroom. Magnetic resonance imaging (MRI) can spare many rectal cancer patients from invasive surgery and lifelong side effects, according to a new study by researchers including Department of Radiology and Medical Imaging’s Associate Professor Arun Krishnaraj, MD, MPH. The findings, from Krishnaraj and […]<\/p>\n","protected":false},"author":1969,"featured_media":11252,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_members_access_role":[],"_members_access_error":"","_links_to":"","_links_to_target":""},"categories":[1,7],"tags":[95],"class_list":["post-14793","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-uva-radiology-medical-imaging-research","tag-department-news"],"acf":false,"yoast_head":"\nArun Krishnaraj, MD, MPH, among Researchers Showing MRI's Prediction Abilities for Rectal Cancer - Radiology and Medical Imaging<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/med.virginia.edu\/radiology\/2024\/10\/23\/arun-krishnaraj-md-mph-co-authors-study-showing-mris-prediction-abilities-for-rectal-cancer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arun Krishnaraj, MD, MPH, among Researchers Showing MRI's Prediction Abilities for Rectal Cancer - Radiology and Medical Imaging\" \/>\n<meta property=\"og:description\" content=\"Edited from the original article by Joshua Barney at the UVA Health Newsroom. 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