Infrared metrics for fixation-free liver tumor detection.

Infrared metrics for fixation-free liver tumor detection.
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用于免固定肝脏肿瘤检测的红外指标。

DOI:
10.1021/jp4073087
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发表时间:
2013
期刊:
The journal of physical chemistry. B
影响因子:
--
通讯作者:
Coe,JamesV
Coe,JamesV
中科院分区:
--
文献类型:
--
作者:
Chen,Zhaomin;Butke,Ryan;Miller,Barrie;Hitchcock,CharlesL;Allen,HeatherC;Povoski,StephenP;MartinJr,EdwardW;Coe,JamesV

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人类肝脏组织切片的红外(IR)光谱成像已被用于识别和表征肝脏肿瘤。从知情同意的患者中手术取出含有乳腺来源的肝转移(粘液癌)的肝组织,并在无福尔马林固定或脱水程序的情况下冷冻,以使脂质和水保留在组织中。针对无固定肝脏组织中的肿瘤确定一组IR度量(各种IR峰的比率)。采用K-means聚类分析区分肿瘤与非肿瘤。在这种情况下,从非肿瘤到肿瘤组织的脂质含量大幅减少,获得并分析了非肿瘤肝脏脂质的良好分辨的IR光谱。这些IR指标可能有一天会指导手术室中患者的IR光谱诊断工作。这项工作还表明,这些方法的实用性超出了肝脏肿瘤的识别,也许在肝脏脂质的研究。
Infrared (IR) spectroscopic imaging of human liver tissue slices has been used to identify and characterize liver tumors. Liver tissue, containing a liver metastasis of breast origin (mucinous carcinoma), was surgically removed from a consenting patient and frozen without formalin fixation or dehydration procedures, so that lipids and water remained in the tissues. A set of IR metrics (ratios of various IR peaks) was determined for tumors in fixation-free liver tissues. K-means cluster analysis was used to tell tumor from nontumor. In this case, there was a large reduction in lipid content upon going from nontumor to tumor tissue, and a well-resolved IR spectrum of nontumor liver lipid was obtained and analyzed. These IR metrics may someday guide work on IR spectroscopic diagnostics on patients in the operating room. This work also suggests utility for these methods beyond the identification of liver tumors, perhaps in the study of liver lipids.
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