X-ray microbeams : Tumor therapy and central nervous system research

Irradiation with parallel arrays of thin, planar slices of X-ray beams (microplanar beams, or microbeams) spares normal tissue, including the central nervous system (CNS), and preferentially damages tumors. The effects are mediated, at least in part, by the tissue's microvasculature that seems...

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Publié dans:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment. - 1987. - 548(2005), 1-2 vom: 11. Aug., Seite 30-37
Auteur principal: Dilmanian, F A (Auteur)
Autres auteurs: Qu, Y, Liu, S, Cool, C D, Gilbert, J, Hainfeld, J F, Kruse, C A, Laterra, J, Lenihan, D, Nawrocky, M M, Pappas, G, Sze, C-I, Yuasa, T, Zhong, N, Zhong, Z, McDonald, J W
Format: Article
Langue:English
Publié: 2005
Accès à la collection:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Sujets:Journal Article
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Résumé:Irradiation with parallel arrays of thin, planar slices of X-ray beams (microplanar beams, or microbeams) spares normal tissue, including the central nervous system (CNS), and preferentially damages tumors. The effects are mediated, at least in part, by the tissue's microvasculature that seems to effectively repair itself in normal tissue but fails to do so in tumors. Consequently, the therapeutic index of single-fraction unidirectional microbeam irradiations has been shown to be larger than that of single-fraction unidirectional unsegmented beams in treating the intracranial rat 9L gliosarcoma tumor model (9LGS) and the subcutaneous murine mammary carcinoma EMT-6. This paper presents results demonstrating that individual microbeams, or arrays of parallel ones, can also be used for targeted, selective cell ablation in the CNS, and also to induce demyelination. The results highlight the value of the method as a powerful tool for studying the CNS through selective cell ablation, besides its potential as a treatment modality in clinical oncology
Description:Date Revised 29.05.2025
published: Print
Citation Status PubMed-not-MEDLINE
ISSN:0168-9002