Spectroscopic techniques (Mössbauer spectrometry, NMR, ESR,…) as tools to resolve doubtful NMR images: Study of the craniopharyngioma tumor

Autor:	D. Lallemand, C. Lafargue, F. Brunelle, C. Kellershohn, J. N. Rimbert, F. Dumas
Rok vydání:	1990
Předmět:	Nuclear and High Energy Physics Nuclear magnetic resonance Intracranial tumor Chemistry medicine Spin–lattice relaxation Tumor cells Physical and Theoretical Chemistry Condensed Matter Physics medicine.disease Atomic and Molecular Physics and Optics Craniopharyngioma Mossbauer spectrometry
Zdroj:	Hyperfine Interactions. 58:2387-2392
ISSN:	1572-9540 0304-3843
Popis:	Craniopharyngioma, an intracranial tumor, exhibits hyperintensity in the Spin-Echo-T2-NMR image and a hyposignal in the SE-T1-image. However, in some cases (15–20% cases), hypersignals are seen in both SE-T1 and T2-MRI. Using spectroscopic techniques, Mossbauer spectrometry in particular, we have demonstrated that the T1 hypersignal is due to ferritin, dissolved in the cystic liquid, after tumor cell lysis, in the course of time. Other possible reasons inducing a shortening of the T1 relaxation time (presence of lipids, intratumoral hemorrhage) have been rejected.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::088b8db58dbb55005c41387d9ddb8684 https://doi.org/10.1007/bf02398349 Zobrazit plný text záznamu Full text from SpringerLink