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Quantitative magnetic resonance imaging in rectal carcinoma
R J Johnson1, J P Jenkins, I Isherwood
1Department of Diagnostic Radiology, University of Manchester.
The British Journal of Radiology
|August 1, 1987
Summary
Calculating T1 relaxation times can differentiate rectal carcinoma from pelvic fibrosis. This method shows promise for improving early detection of tumor recurrence in patients.
Area of Science:
- Medical Imaging
- Oncology
- Radiology
Background:
- Rectal carcinoma diagnosis and monitoring are crucial for patient outcomes.
- Differentiating between malignant tumors and benign fibrotic tissue in the pelvis can be challenging with conventional imaging.
- Accurate assessment of pelvic masses is essential for appropriate treatment planning.
Purpose of the Study:
- To evaluate the utility of T1 and T2 relaxation times in distinguishing rectal carcinoma from pelvic fibrosis.
- To assess the potential of relaxation time measurements for detecting early tumor recurrence.
Main Methods:
- T1 and T2 relaxation times were calculated for 30 patients with rectal carcinoma and 7 with pelvic fibrosis.
- A multipoint iterative method was employed using data from seven total saturation recovery and six spin-echo sequences.
Main Results:
- Calculated T1 relaxation values demonstrated a significant difference between rectal carcinoma and pelvic fibrosis.
- The T1 relaxation time emerged as a valuable parameter for discriminating between these two conditions.
Conclusions:
- T1 relaxation time measurements are effective in differentiating rectal carcinoma from pelvic fibrosis.
- This quantitative MRI approach holds potential for enhancing the early detection of rectal tumor recurrence.