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[Magnetic resonance imaging for cardiovascular masses]
M Shimojo1, N Tsuda, H Kamihata
1Second Department of Internal Medicine, Kansai Medical University, Moriguchi.
Journal of Cardiology
|June 1, 1989
Summary
Magnetic resonance imaging (MRI) effectively diagnoses cardiovascular masses, distinguishing benign from malignant tumors. This noninvasive technique provides detailed anatomical information for treatment planning.
Area of Science:
- Cardiovascular Imaging
- Diagnostic Radiology
- Oncology
Background:
- Cardiovascular masses require accurate noninvasive diagnostic methods.
- Magnetic resonance imaging (MRI) offers potential for detailed visualization of cardiac and mediastinal structures.
Observation:
- Ten patients with diverse cardiovascular masses were evaluated using 0.15 tesla permanent MRI with ECG-gated spin echo techniques.
- Specific imaging parameters (TE/TR) and multiplanar reconstructions were employed to characterize mass signal intensity, morphology, and spatial relationships.
Findings:
- Intermediate signal intensity on specific MRI sequences clearly defined masses.
- Multiplanar imaging delineated the extent of masses (rhabdomyoma, leiomyosarcoma, mesothelioma, lung carcinoma invasion, SVC syndrome) relative to adjacent structures.
- Differentiation between benign and malignant masses was suggested by signal heterogeneity on long spin echo images, potentially related to tumor T2 values.
Implications:
- MRI is a valuable noninvasive tool for diagnosing cardiovascular masses, providing crucial anatomical and potential prognostic information.
- Detailed imaging aids in differentiating benign from malignant lesions and assessing tumor extent, guiding clinical management.
- Further research into MRI's role in characterizing tumor composition and predicting malignancy is warranted.