A Feasibility Study to Compare the Benefits of Endoscopic Tumor Clip Placement and 3T-MRI Simulation for Accurate Target Volume Definition for Rectal Cancer Patients Undergoing Pre-operative Chemoradiation
This study is looking for a better way to define rectal tumors undergoing pre-operative radiation. MRI scanning generally results in more clear definition of the tumor that CT scanning. Insertion of radio opaque clips in the tumor site could also help to visualize the tumor better for radiotherapy treatment planning. The investigators believe both techniques would help the physician to define to cancer better than using CT scan alone. The investigators also will compare both techniques to define the better way to define the tumor.
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||A Feasibility Study to Compare the Benefits of Endoscopic Tumor Clip Placement and 3T-MRI Simulation for Accurate Target Volume Definition for Rectal Cancer Patients Undergoing Pre-operative Chemoradiation|
- To define the usefulness of Endoscopic clip placement and 3T-MRI imaging for accurate target volume definition in rectal cancer patients undergoing pre-operative chemoradiation. [ Time Frame: 1 year ] [ Designated as safety issue: No ]
- To assess the differences in pelvic lymph node (CTV) volume definition between Ct and MRI images. [ Time Frame: 1 year ] [ Designated as safety issue: No ]
|Study Start Date:||June 2010|
|Study Completion Date:||November 2013|
|Primary Completion Date:||November 2013 (Final data collection date for primary outcome measure)|
- The use of endoscopically placed mucosal metal clips to define the superior and inferior extent of the rectal tumor will improve the accuracy of tumor localization in patients undergoing non-contrast CT simulation.
- A 3T-MRI will provide a better localization of the rectal tumor and pelvic nodes compared to non-contrast CT simulation for radiotherapy treatment planning.
- By comparing these two novel methods to the standard procedure, we would be able to define any difference between the three methods and obtain an estimate of the accuracy and reliability of each method for the localization of the rectal tumor.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01133340
|Cross Cancer Institute|
|Edmonton, Alberta, Canada, T6G 1Z2|
|Principal Investigator:||Kurian Joseph, MD||Cross Cancer Institute, Alberta Health Services|