CT平扫结合伪彩成像提高乳腺癌检出率的初步研究

发布时间：2018-03-29 20:23

  本文选题：乳腺癌胸部　切入点：体层摄影术　出处：《临床放射学杂志》2015年12期

【摘要】：目的探讨结合伪彩成像提高胸部CT平扫乳腺癌检出率的价值。方法搜集经病理证实的乳腺癌患者30例(共60只乳腺),由两名医师分别独立阅读胸部CT平扫纵隔窗图像判断是否存在乳腺癌病灶,2周后应用胸部平扫CT图像结合伪彩成像技术阅片判断是否存在乳腺癌病灶。采用Kappa方法计算两名医师的一致性,采用卡方检验验证结合伪彩成像技术可否提高胸部CT平扫乳腺癌检出率。结果纤维腺体松散分布的乳腺(Ⅰ类,13例)中,乳腺癌灶的CT值平均值高于正常腺体的CT值平均值[(21.0±13.0)HU vs(-28.1±32.8)HU](P0.001),纤维腺体致密分布的乳腺(Ⅱ类,17例)中亦如此[(34.3±12.5)HU vs(1.9±21.7)HU](P0.001)。在Ⅱ类乳腺中,两名医师在CT平扫图像下阅片的评价结果具有高度一致性(Kappa=0.852,P0.001),采用CT平扫结合伪彩成像阅片方式的评价结果具有较高一致性(Kappa=0.798,P0.001)。单纯CT平扫阅片方式及平扫结合伪彩成像阅片方式在Ⅰ类乳腺中检测乳腺癌的敏感性均为100%(13/13),平扫结合伪彩在Ⅱ类的乳腺中检测肿瘤的敏感性高于平扫阅片(94.1%vs.64.7%,P0.05)。结论 CT平扫结合伪彩成像技术较之传统CT阅片可以提高纤维腺体致密分布的乳腺内癌灶的检出率。
[Abstract]:Objective to investigate the value of pseudo-color imaging in improving the detection rate of breast cancer with plain CT scan. Methods 30 cases (60 mammary glands) of breast cancer proved by pathology were collected and read the chest CT plain mediastinal window separately by two doctors. Two weeks later, chest plain CT images combined with pseudo-color imaging were used to judge the existence of breast cancer lesions. Kappa method was used to calculate the consistency of the two physicians. Chi-square test was used to verify whether the combination of pseudo-color imaging technique could improve the detection rate of breast cancer with plain CT scan. Results in 13 cases of breast with loose distribution of fibrous glands, The average CT value of breast cancer was higher than that of normal gland [21.0 卤13.0)HU vs(-28.1 卤32.8)HU] P0.001a, and so was the dense distribution of fibrous glands (17 cases of class 鈪，

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