Acetic acid as a signal enhancing contrast agent in fluorescence spectroscopy
    1.
    发明授权
    Acetic acid as a signal enhancing contrast agent in fluorescence spectroscopy 有权
    乙酸作为增强荧光光谱学造影剂的信号

    公开(公告)号:US06241662B1

    公开(公告)日:2001-06-05

    申请号:US09175232

    申请日:1998-10-20

    IPC分类号: A61B500

    摘要: A method for using acetic acid as a signal enhancing contrast agent during fluorescence spectroscopy of normal and neoplastic tissue, particularly epithelium. In one aspect, the invention includes a method of detecting tissue abnormality in a diagnostic tissue sample in a patient, comprising the steps of obtaining a first fluorescence intensity spectrum from the diagnostic tissue sample; thereafter, applying acetic acid to the diagnostic tissue sample in sufficient concentration to alter the response of such diagnostic tissue sample to electromagnetic radiation for at least an effective period of time; during the effective period of time, obtaining a second fluorescence intensity spectrum from the diagnostic tissue sample; determining a parameter indicative of a change between the first and second fluorescence emission intensity spectra; and analyzing the determined parameter to determine a probability that the diagnostic tissue sample is normal or abnormal.

    摘要翻译: 在正常和肿瘤组织,特别是上皮的荧光光谱学过程中使用乙酸作为信号增强造影剂的方法。 一方面,本发明包括检测患者的诊断性组织样本中的组织异常的方法,包括以下步骤:从所述诊断组织样品获得第一荧光强度光谱; 此后,以足够的浓度将乙酸施用于诊断组织样品,以将这种诊断性组织样品的响应改变为电磁辐射至少有效的一段时间; 在有效时间段内,从诊断组织样品获得第二荧光强度光谱; 确定指示所述第一和第二荧光发射强度光谱之间的变化的参数; 并分析确定的参数以确定诊断组织样本正常或异常的概率。