作者: Even Angell-Petersen , Signe Spetalen , Steen J. Madsen , Chung-Ho Sun , Qian Peng
DOI: 10.3171/JNS.2006.104.1.109
关键词:
摘要: Object Failure of treatment for high-grade gliomas is usually due to local recurrence at the site resection, indicating that a more aggressive therapy could be beneficial. Photodynamic (PDT) involving administration tumor-localizing photosensitizing drug, in this case aminolevulinic acid (ALA). The effect depends on total light energy delivered target tissue, but may also influenced by rate delivery. Methods In vitro experiments showed sensitivity ALA PDT BT4C multicellular tumor spheroids depended delivery (fluence rate). tumors were established intracranially BD-IX rats. Microfluorometry frozen tissue sections photosensitization produced with better than 200:1 tumor/normal selectivity after injection. Four hours intraperitoneal injection (125 mg/kg), 26 J 632 nm was interstitially over 15 (high fluence rate) or 90 (low fluence...