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Superior sulcus tumors: CT and MR imaging
R T Heelan1, B E Demas, J F Caravelli
1Department of Medical Imaging, Memorial Sloan-Kettering Cancer Center, New York, NY 10021.
Radiology
|March 1, 1989
Summary
Magnetic resonance (MR) imaging is more accurate than computed tomographic (CT) scans for evaluating superior pulmonary sulcus tumors. Thin-section MR images provide superior visualization of tumor invasion in this complex anatomical region.
Area of Science:
- Radiology
- Oncology
- Thoracic Imaging
Background:
- Superior pulmonary sulcus tumors are challenging to diagnose.
- Accurate staging of tumor invasion is crucial for treatment planning.
Purpose of the Study:
- To compare the diagnostic accuracy of computed tomographic (CT) and magnetic resonance (MR) imaging for evaluating tumor invasion in patients with superior pulmonary sulcus tumors.
Main Methods:
- Thirty-one patients with superior pulmonary sulcus tumors underwent CT and MR imaging.
- Interpretations were blinded and compared with surgical findings or clinical symptoms.
- Thin-section (5-mm) coronal and sagittal MR images were analyzed.
Main Results:
- MR imaging demonstrated higher accuracy (.94) than CT scans (.63) in evaluating tumor invasion.
- Thin-section coronal and sagittal MR images improved the display of superior sulcus anatomy.
Conclusions:
- MR imaging, particularly with thin-section coronal and sagittal views, is more accurate than CT for assessing tumor invasion in the superior pulmonary sulcus.
- Improved anatomical visualization on MR imaging contributes to its enhanced diagnostic performance.