多层CT结肠仿真活检技术的临床应用

发布时间：2018-01-12 14:04

本文关键词：多层CT结肠仿真活检技术的临床应用　出处：《中山大学学报(医学科学版)》2016年04期 　论文类型：期刊论文

【摘要】：【目的】探讨结肠CT仿真活检技术(CTVB)的临床应用价值。【方法】21例患者术前行CTVB检查,其中结肠癌16例,结肠息肉5例,所有病例均经纤维内窥镜或手术病理证实;CTVB设定白色代表最高密度组织,CT值≥400 Hu,红色代表较高密度组织,CT值200~399 Hu,橙色至黄色代表中等密度组织,CT值20~199 Hu,黄绿色交界区代表水样密度,绿色代表脂肪密度组织,CT值-199~19 Hu,蓝色至黑色代表低密度组织如空气,CT值-600~-200 Hu。【结果】CTVB肿块人工伪彩色色阶以红、棕色色调为主9例,代表高密度组织,癌巢色阶像素编织紧密;肿块以橙、土黄色调为主6例,代表较高密度组织,癌巢色阶像素编织较疏松;肿块呈土黄色、深黄色条纹为主并见白斑纹1例,病例为黏液腺癌,高色阶白斑纹与病理钙化区空间位置相对应,癌巢色阶编织疏松;结肠息肉5例,CTVB结节人工伪彩色色阶呈光整均匀浅黄色。【结论】CTVB提供了一种无创伤性的模拟病理活检的影像诊断方法,可作为纤维内窥镜活检的补充手段,尤其是患者肠腔狭窄或梗阻部位以上结肠有多处肿块无法行纤维内窥镜活检时,为患者临床术前评估提供更客观的信息。
[Abstract]:[Objective] to investigate the CT simulation of colon biopsy technique (CTVB) for clinical application. [Methods] 21 patients underwent CTVB examination, including 16 cases of colon cancer, 5 cases of colon polyps, all cases were confirmed by fiber endoscope mirror or surgical pathology; CTVB set white represents the highest density, the CT value is more than 400 Hu, red represents high density tissue, CT 200~399 Hu, orange to yellow represents medium density, CT value of 20~199 Hu represents the yellow green border area of water density, fat density in green tissue, CT -199~19 Hu, blue or black represents the low density of organizations such as air, -600~-200 Hu. [result] CT CTVB the mass of artificial pseudo color with red color, 9 cases of brown color, high density, color pixels tightly woven nests; masses in orange, 6 cases of earth tones, on behalf of high density tissue, cancer nest levels like fabric with loose masses in the soil; Yellow, deep yellow striped and white stripes in 1 cases, cases of mucinous adenocarcinoma, corresponding to high levels of white markings and pathological calcification area spatial position, the nests color woven osteoporosis; 5 cases of colon polyps, nodules CTVB artificial pseudo color was light yellow color light the whole uniform. [Conclusion] CTVB provides a noninvasive simulated biopsy imaging diagnostic methods, can be used as a supplementary means of fiber endoscope biopsy, especially in patients with intestinal stricture or obstruction of colon or multiple masses not for fiber endoscope biopsy, provide more objective information for clinical assessment of patients before.

【作者单位】：深圳市宝安区中心医院放射科;中山大学附属第一医院医学影像学部;
【分类号】：R816.5;R656.9
【正文快照】： [J SUN Yat-sen Univ(Med Sci),2016,37(4):609-613]CT仿真内窥镜(CT virtual endoscopy,CTVE)是基于医学图像三维可视化发展而来,1994年Vining[1]首次报道,目前已广泛应用于空腔脏器腔内成像,在CTVE中引入仿真活检技术(virtualbiopsy),文献则少见报道。CT仿真活检技术(CTvirt

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