Textural Analysis as a Predictive Biomarker in Rectal Cancer

Area of Science:

• Radiology
• Oncology
• Medical Imaging Analysis

Background:

• Colorectal cancer (CRC) is a significant cause of cancer mortality.
• Accurate staging of rectal cancer is crucial for effective treatment planning.
• Pelvic MRI is the current standard for rectal cancer staging.

Purpose of the Study:

• To review the potential of MRI textural analysis (MRTA) in rectal cancer management.
• To explore MRTA's role in predicting prognosis and clinical outcomes.
• To identify challenges hindering MRTA's clinical implementation.

Main Methods:

• Narrative review of current literature on MRTA in rectal cancer.
• Focus on MRTA as a radiomic process quantifying image heterogeneity.
• Analysis of MRTA's predictive capabilities for treatment response and survival.

Main Results:

• MRTA shows promise in predicting pathological response to neoadjuvant chemoradiotherapy (NCRT).
• MRTA may serve as a future predictor of survival and tumor recurrence.
• MRTA could support alternative management strategies like the 'wait-and-watch' approach for complete responders.

Conclusions:

• MRTA is an emerging tool with significant potential in precision rectal cancer management.
• Further research is needed to overcome implementation challenges.
• MRTA may refine treatment decisions and improve patient outcomes.