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Esophageal invasion by thyroid carcinomas: prediction using magnetic resonance imaging
Jichen Wang1, Shodayu Takashima, Tsuyoshi Matsushita
1Department of Radiology, Shinshu University School of Medicine, Matsumoto, Japan.
Journal of Computer Assisted Tomography
|January 25, 2003
Summary
Magnetic resonance imaging (MRI) accurately predicts esophageal invasion by thyroid cancer. Outer layer invasion on MRI is the optimal diagnostic criterion, showing high accuracy.
Area of Science:
- Oncology
- Radiology
- Gastroenterology
Background:
- Thyroid carcinomas can invade adjacent structures, including the esophagus.
- Accurate preoperative assessment of esophageal invasion is crucial for treatment planning.
Purpose of the Study:
- To evaluate the accuracy of magnetic resonance imaging (MRI) in predicting esophageal invasion by thyroid carcinomas.
- To establish an optimal MRI criterion for diagnosing esophageal invasion.
Main Methods:
- Retrospective review of MRI findings in 67 patients with thyroid carcinomas.
- Correlation of MRI findings with surgical and pathological results.
- Logistic modeling to identify significant predictors of esophageal invasion.
Main Results:
- Esophageal invasion was confirmed in 17 (34%) patients.
- Outer layer invasion and poorly defined margins were significant predictors.
- Outer layer invasion demonstrated 91% accuracy, 82% sensitivity, and 94% specificity.
Conclusions:
- MRI is accurate in predicting esophageal invasion by thyroid carcinoma.
- Outer layer invasion on MRI is the optimal criterion for diagnosing esophageal invasion.