Radiology:计算机辅助CT图像小结节特征在诊断早期肺癌的附加价值

2017-09-22 shaosai MedSci原创

肺小结节影是肺内的圆形或类圆形、直径在0.3-0.5cm的高密度病灶称为肺内的小结节。肺内的小结节影可以见于很多原因,比如肺结核的增殖性病灶、肺结核球、炎性假瘤、肺囊肿、肺腺瘤、错构瘤以及肺癌、转移瘤等等,都可以有类似的表现。本研究旨在验证与胸组放射科医生读片相比计算机辅助诊断(CAD)方法是否能够在肺癌筛查中对小肺结节的诊断提高阳性预测值(PPV)和降低假阳性率,并将结果发表在Radiology

肺小结节影是肺内的圆形或类圆形、直径在0.3-0.5cm的高密度病灶称为肺内的小结节。肺内的小结节影可以见于很多原因,比如肺结核的增殖性病灶、肺结核球、炎性假瘤、肺囊肿、肺腺瘤、错构瘤以及肺癌、转移瘤等等,都可以有类似的表现。本研究旨在验证与胸组放射科医生读片相比计算机辅助诊断(CAD)方法是否能够在肺癌筛查中对小肺结节的诊断提高阳性预测值(PPV)和降低假阳性率,并将结果发表在Radiology上。本研究共纳入了186例有4-20mm非钙化结节病行病理活检的患者进行低剂量计算机断层成像(CT)检查。匹配变量包括年龄、性别、吸烟史、慢性阻塞性肺疾病、身体质量指数、阳性筛查学习时间和筛查结果。研究在肺活检前随机分为训练组(70例肺癌和70名健康志愿者)和确认组(20例肺癌和20名健康志愿者)。提取典型结节及其它结节的图像特点。在训练组对CAD算法进行优化,利用随机森林分类器在确认组进行预测活检结果。利用ROC曲线比较CAD的预测准确率与NLST观察者的诊断和读片结果。在确认组,CAD ROC曲线下面积为0.9154。在默认值,NLST观察者的敏感性、特异性和PPV分别为1.00、0.00

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1716375, encodeId=f2221e163756d, content=<a href='/topic/show?id=d68d911542f' target=_blank style='color:#2F92EE;'>#计算机#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91154, encryptionId=d68d911542f, topicName=计算机)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=def632217870, createdName=bioon14, createdTime=Thu Nov 23 01:21:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1666169, encodeId=b5cd1666169a7, content=<a href='/topic/show?id=5fd55943ecf' target=_blank style='color:#2F92EE;'>#早期肺癌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=59437, encryptionId=5fd55943ecf, topicName=早期肺癌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=592126038749, createdName=循证小兵, createdTime=Thu Jan 11 01:21:00 CST 2018, time=2018-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1994353, encodeId=e8471994353da, content=<a href='/topic/show?id=359a4e09482' target=_blank style='color:#2F92EE;'>#小结节#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47094, encryptionId=359a4e09482, topicName=小结节)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=734374, createdName=gjsgj, createdTime=Thu Feb 15 10:21:00 CST 2018, time=2018-02-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=246673, encodeId=df8a2466e3fe, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Fri Sep 22 17:38:51 CST 2017, time=2017-09-22, status=1, ipAttribution=)]
    2017-11-23 bioon14
  2. [GetPortalCommentsPageByObjectIdResponse(id=1716375, encodeId=f2221e163756d, content=<a href='/topic/show?id=d68d911542f' target=_blank style='color:#2F92EE;'>#计算机#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91154, encryptionId=d68d911542f, topicName=计算机)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=def632217870, createdName=bioon14, createdTime=Thu Nov 23 01:21:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1666169, encodeId=b5cd1666169a7, content=<a href='/topic/show?id=5fd55943ecf' target=_blank style='color:#2F92EE;'>#早期肺癌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=59437, encryptionId=5fd55943ecf, topicName=早期肺癌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=592126038749, createdName=循证小兵, createdTime=Thu Jan 11 01:21:00 CST 2018, time=2018-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1994353, encodeId=e8471994353da, content=<a href='/topic/show?id=359a4e09482' target=_blank style='color:#2F92EE;'>#小结节#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47094, encryptionId=359a4e09482, topicName=小结节)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=734374, createdName=gjsgj, createdTime=Thu Feb 15 10:21:00 CST 2018, time=2018-02-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=246673, encodeId=df8a2466e3fe, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Fri Sep 22 17:38:51 CST 2017, time=2017-09-22, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1716375, encodeId=f2221e163756d, content=<a href='/topic/show?id=d68d911542f' target=_blank style='color:#2F92EE;'>#计算机#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91154, encryptionId=d68d911542f, topicName=计算机)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=def632217870, createdName=bioon14, createdTime=Thu Nov 23 01:21:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1666169, encodeId=b5cd1666169a7, content=<a href='/topic/show?id=5fd55943ecf' target=_blank style='color:#2F92EE;'>#早期肺癌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=59437, encryptionId=5fd55943ecf, topicName=早期肺癌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=592126038749, createdName=循证小兵, createdTime=Thu Jan 11 01:21:00 CST 2018, time=2018-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1994353, encodeId=e8471994353da, content=<a href='/topic/show?id=359a4e09482' target=_blank style='color:#2F92EE;'>#小结节#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47094, encryptionId=359a4e09482, topicName=小结节)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=734374, createdName=gjsgj, createdTime=Thu Feb 15 10:21:00 CST 2018, time=2018-02-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=246673, encodeId=df8a2466e3fe, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Fri Sep 22 17:38:51 CST 2017, time=2017-09-22, status=1, ipAttribution=)]
    2018-02-15 gjsgj
  4. [GetPortalCommentsPageByObjectIdResponse(id=1716375, encodeId=f2221e163756d, content=<a href='/topic/show?id=d68d911542f' target=_blank style='color:#2F92EE;'>#计算机#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91154, encryptionId=d68d911542f, topicName=计算机)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=def632217870, createdName=bioon14, createdTime=Thu Nov 23 01:21:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1666169, encodeId=b5cd1666169a7, content=<a href='/topic/show?id=5fd55943ecf' target=_blank style='color:#2F92EE;'>#早期肺癌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=59437, encryptionId=5fd55943ecf, topicName=早期肺癌)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=592126038749, createdName=循证小兵, createdTime=Thu Jan 11 01:21:00 CST 2018, time=2018-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1994353, encodeId=e8471994353da, content=<a href='/topic/show?id=359a4e09482' target=_blank style='color:#2F92EE;'>#小结节#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47094, encryptionId=359a4e09482, topicName=小结节)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=734374, createdName=gjsgj, createdTime=Thu Feb 15 10:21:00 CST 2018, time=2018-02-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=246673, encodeId=df8a2466e3fe, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Fri Sep 22 17:38:51 CST 2017, time=2017-09-22, status=1, ipAttribution=)]
    2017-09-22 Jackie Li

    学习

    0