Related Experiment Video
Updated: Jun 20, 2026
06:44
Modeling Brain Metastases Through Intracranial Injection and Magnetic Resonance Imaging
Published on: June 7, 2020
Computer-aided detection of brain tumor invasion using multiparametric MRI
Todd R Jensen1, Kathleen M Schmainda
1Imaging Biometrics, Milwaukee, Wisconsin, USA.
Journal of Magnetic Resonance Imaging : JMRI
|August 28, 2009
Summary
Computer-aided detection using MRI features can distinguish tumor-associated edema from actual tumor invasion. This method aids in identifying subtle tumor spread not visible on standard imaging, improving brain tumor diagnosis.
Area of Science:
- Neuroimaging
- Oncology
- Artificial Intelligence
Background:
- Distinguishing peritumoral edema from tumor invasion is crucial for accurate brain tumor diagnosis and treatment planning.
- Glioblastomas, unlike meningiomas, exhibit invasive growth beyond contrast-enhancing regions, complicating surgical resection and prognosis.
Purpose of the Study:
- To evaluate a computer-aided detection (CAD) method for differentiating peritumoral edema from tumor invasion.
- To leverage high-resolution morphological and physiological magnetic resonance imaging (MRI) techniques for enhanced diagnostic capabilities.
Main Methods:
- Retrospective analysis of 7 meningiomas and 11 glioblastomas.
- Training four distinct classifiers using MRI-derived features (morphological, diffusion-weighted, perfusion-weighted).
- Testing classifiers on edematous regions to detect nonenhancing tumor invasion.
Main Results:
- All four classifiers demonstrated comparable accuracy in distinguishing tumor invasion.
- The CAD method successfully identified areas of nonenhancing tumor invasion, corroborated by adjunct imaging or follow-up.
Conclusions:
- Combined morphological and physiological MRI features provide essential information for CAD of tumor invasion.
- This approach can reveal tumor invasion not apparent on standard MRI sequences.
- Further validation with larger sample sizes and coregistered tissue samples is recommended.
Related Concept Videos
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:14Brain Imaging
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).