A new method for characterization of low grade gliomas using ultra low field magnetic resonance imaging
| Autor: | Jörgen Boethius, Eva Kindstrand, Lennart Wetterberg, Jan Sääf, Olle Marions, Lars-Oloe Wahlund |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Adult
Male Materials science Biomedical Engineering Biophysics Brain tissue Nuclear magnetic resonance Magnetic imaging Glioma medicine Humans Radiology Nuclear Medicine and imaging Diagnosis Computer-Assisted Aged medicine.diagnostic_test Brain Neoplasms Ultra low field Classification procedure Magnetic resonance imaging Middle Aged medicine.disease Magnetic Resonance Imaging Characterization (materials science) Female Tomography Tomography X-Ray Computed |
| Zdroj: | Magnetic Resonance Imaging. 7:599-603 |
| ISSN: | 0730-725X |
| DOI: | 10.1016/0730-725x(89)90527-4 |
| Popis: | Low grade gliomas were studied with ultra low field magnetic resonance imaging (ULF MRI). The tumors exhibited high tissue contrast in both T1 and T2-weighted images as compared to normal brain tissue. Moreover they were sharply delineated towards the surrounding brain tissue. When compared with X-ray computed tomography the tumors were more readily detected and delineated by using ultra-low field magnetic imaging. A computer-assisted classification procedure was used to define new regions of interest for relaxation time estimations. By using this procedure more accurate estimations of the T1 and T2 values were obtained. |
| Databáze: | OpenAIRE |
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