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3D PET-driven multi-phase segmentation of meningiomas in MRI
- Source :
- ISBI
- Publication Year :
- 2016
- Publisher :
- IEEE, 2016.
-
Abstract
- Combining anatomical and functional information from Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET) scans brings great opportunities to improve diagnosis in oncology and treatment planning in radiation oncology. In this work, we propose a PET-guided MR tumor segmentation method minimizing a globally convex energy in a multiphase framework to account for the context variability of lesions. The method was evaluated in four patients with atypical meningiomas of different shapes, locations and metabolism, and the Dice index obtained by comparing with a manual tumor segmentation performed by an expert was 0.65 ± 0.13. The results demonstrated a good ability of the method to differentiate tumors from tissues with similar MRI intensity values.
- Subjects :
- PET-CT
medicine.medical_specialty
medicine.diagnostic_test
business.industry
Magnetic resonance spectroscopic imaging
Magnetic resonance imaging
Context (language use)
02 engineering and technology
Real-time MRI
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Positron emission tomography
Dynamic contrast-enhanced MRI
0202 electrical engineering, electronic engineering, information engineering
medicine
020201 artificial intelligence & image processing
Radiology
business
Nuclear medicine
Preclinical imaging
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2016 IEEE 13th International Symposium on Biomedical Imaging (ISBI)
- Accession number :
- edsair.doi...........4dec12cdde678bb395de23f354c25122