Rectal cancer staging using MRI: adherence in reporting to evidence-based practice

Area of Science:

• Radiology
• Oncology
• Medical Imaging

Background:

• Magnetic resonance imaging (MRI) is the primary method for rectal cancer staging.
• Radiology reports are crucial for guiding treatment decisions.

Purpose of the Study:

• To assess the gap between MRI reporting practices and evidence-based guidelines for rectal cancer staging in Sweden in 2010.
• To identify discrepancies in reporting content and adherence to best practices.

Main Methods:

• Content analysis of 243 primary rectal cancer MRI staging reports from 2010 across 10 Swedish hospitals.
• Deductive thematic coding based on evidence-based practice, focusing on reported findings, prognostic correlations, and deviations from guidelines.

Main Results:

• Commonly reported findings included tumor spread, lymph node status, length, and anal verge distance (35% of content).
• 86% of reported content aligned with evidence-based practice, but reports often contained more or less information than recommended.
• Only 48% of content was accounted for when adjusting for omissions; 20% correlated with prognostic findings.
• Six types of findings beyond evidence-based practice were noted (14% of content).

Conclusions:

• A significant gap existed between actual MRI reporting practices and evidence-based guidelines in 2010.
• National standardization and structured reporting templates are necessary for rectal cancer MRI staging in Sweden.