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放射性标识物及其应用问题探讨
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作者 强永刚 黄正 +1 位作者 廖永华 张秀萍 《中国辐射卫生》 北大核心 2008年第4期463-465,共3页
目的提高我国临床医生和广大群众的核放射安全文化素养。方法追溯放射性的发现及其应用,以及放射性标示物的形成、演变及问题。结果从放射防护的发展简史阐述放射标识物的起源,及2007年最新颁布的补充放射标识物,指出我国放射标识物使... 目的提高我国临床医生和广大群众的核放射安全文化素养。方法追溯放射性的发现及其应用,以及放射性标示物的形成、演变及问题。结果从放射防护的发展简史阐述放射标识物的起源,及2007年最新颁布的补充放射标识物,指出我国放射标识物使用中存在的问题。结论建议及时启用IAEA和ISO新颁布的补充性的标志物,在没有废止传统电离辐射标志物之前,宜2种标志物同时使用,并侧重于补充性的标志物的使用。 展开更多
关键词 放射标志物 问题与建议 安全
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多层面螺旋CT的口腔种植体定位研究 被引量:1
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作者 胡文 吴纪楠 +1 位作者 唐秉航 李良才 《广东牙病防治》 2003年第4期262-263,共2页
目的 探讨多层面螺旋CT的后处理重建技术在口腔种植体植入术前精确定位及骨量测量的意义。方法测量比较带有3个放射标记物的模板在模型及多层面螺旋CT影像中的距离和相互角度,并在CT影像中虚拟植入种植体,观察种植体植入情况。结果 多... 目的 探讨多层面螺旋CT的后处理重建技术在口腔种植体植入术前精确定位及骨量测量的意义。方法测量比较带有3个放射标记物的模板在模型及多层面螺旋CT影像中的距离和相互角度,并在CT影像中虚拟植入种植体,观察种植体植入情况。结果 多层面螺旋CT中影像的放射标记物间的距离与模型上测量数据的差异无统计学意义,并能直观、准确提供种植体植入的骨量信息。结论 使用多层面螺旋CT能在术前准确评估牙槽骨骨量及确定种植体植入位置、方向、大小、长度。 展开更多
关键词 多层面螺旋CT 口腔种植体 定位研究 放射标志物
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Biomarkers for enhancing the radiosensitivity of nasopharyngeal carcinoma 被引量:16
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作者 Wei Chen Guo-Hua Hu 《Cancer Biology & Medicine》 SCIE CAS CSCD 2015年第1期23-32,共10页
Nasopharyngeal carcinoma(NPC) is a common head and neck malignancy. The incidence of NPC is higher in Southern China and Southeast Asia compared with Western countries. Given its high radiosensitivity, the standard tr... Nasopharyngeal carcinoma(NPC) is a common head and neck malignancy. The incidence of NPC is higher in Southern China and Southeast Asia compared with Western countries. Given its high radiosensitivity, the standard treatment for NPC is radiotherapy. However, radioresistance remains a serious obstacle to successful treatment. Radioresistance can cause local recurrence and distant metastases in some patients after treatment by radiation. Thus, special emphasis has been given to the discovery of effective radiosensitizers. This review aims to discuss the biomarkers, classified according to the main mechanisms of radiosensitization, which can enhance the sensitivity of NPC cells to ionizing radiation. 展开更多
关键词 Nasopharyngeal carcinoma (NPC) RADIOTHERAPY RADIOSENSITIZATION biomarkers
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Monoclonal immunoscintigraphy for detection of metastasis and recurrence of colorectal cancer 被引量:4
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作者 Vera Artiko Ana Koljevic Markovi +13 位作者 Dragana obi-aranovi Milorad Petrovi Andrija Anti Mirjana Stojkovi Marinko Zuvela Djordjije aranovi Milica Stojkovi Neboja Radovanovi Danijel Galun Aleksandar Milovanovi Jovica Milovanovi Anica Bobi-Radovanovi Zoran Krivokapic Vladimir Obradovi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第19期2424-2430,共7页
AIM:To assess the clinical role of monoclonal immunoscintigraphy for the detection of metastasis and recurrence of colorectal cancer.METHODS:Monoclonal immunoscintigraphy was performed in patients operated on for colo... AIM:To assess the clinical role of monoclonal immunoscintigraphy for the detection of metastasis and recurrence of colorectal cancer.METHODS:Monoclonal immunoscintigraphy was performed in patients operated on for colorectal adenocar-cinoma suspected of local recurrence and metastatic disease.The results were compared with conventional diagnostics.RESULTS:Immunoscintigraphic investigation was done in 53 patients.Tumor recurrence occurred in 38 patients,and was confirmed by other diagnostic modalities in 35.In 15 patients,immunoscintigraphic findings were negative,and confirmed in 14 with other diagnostic methods.Comparative analysis confirmed good correlation of immunoscintigraphic findings and the results of conventional diagnostics and the level of tumor marker carcinoembryonic antigen.Statistical analysis of parameters of radiopharmaceutical groups imacis,indimacis and oncoscint presented homogenous characteristics all of three radiopharmaceuticals.The analysis of immunoscintigraphic target focus was clearly improved using tomography.CONCLUSION:Immunoscintigraphy is highly specific and has a good predictive value in local recurrence of colorectal cancer. 展开更多
关键词 IMMUNOSCINTIGRAPHY Monoclonal antibodies Colorectal carcinoma Tumor metastasis Tumor recurrence
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