Colorectal Imaging (2021)-R4-CGI11-2021

Video Transcription

Video Summary

In the series of talks on advancements in medical imaging, experts discussed comprehensive approaches and techniques, particularly focusing on CT colonography (CTC) and MRI in colorectal cancer and anorectal fistulas.<br /><br />Dr. Judy Yee highlighted the importance of identifying polyps using CT colonography, emphasizing sessile serrated lesions due to their flat morphology, which makes detection challenging without positive oral contrast. She discussed new techniques, including dual energy CT and artificial intelligence, in identifying and managing colorectal conditions.<br /><br />For anorectal fistulas, another expert elaborated on the crucial role of MRI in patient assessment. Emphasis was placed on understanding the anatomy for proper classification and the use of detailed structured reports for treatment. The anatomy of sphincters, the impact of internal-external openings on classification, and the incorporation of disease attributes such as abscess presence and rectal wall involvement are key aspects.<br /><br />Dr. David Kim discussed practical tips for optimizing CT colonography, specifically focusing on the importance of bowel preparation and optimal colon distension for better image interpretation. By combining cathartic agents with tagging agents and using CO2 insufflation, enhanced detection of conditions like sessile serrated lesions can be achieved.<br /><br />Dr. Zahra Kassam advanced the discussion through MRI techniques in rectal cancer. Key takeaways included accurate T2 staging and CRM assessment, overcoming interpretative challenges by recognizing complex textures, nodal characterization with DWI, and awareness of prognostic factors for effective management planning.<br /><br />These talks collectively demonstrate the potential improvements in diagnostic proficiency using evolving imaging technologies, enhancing colorectal diagnosis, treatment planning, and potentially leading to better clinical outcomes.

Keywords

medical imaging

CT colonography

MRI

colorectal cancer

anorectal fistulas

sessile serrated lesions

artificial intelligence

bowel preparation

T2 staging

diagnostic proficiency