Clin Oral Investig:亮度和对比变化对口内数字X线片根吸收检测灵敏度的影响

2019-01-01 lishiting MedSci原创

这篇研究的目的是通过X线照相术检测模拟牙根内(IRR)和外(ERR)吸收的准确性评估不同亮度和对比变化对根尖周X线片的影响。另外,也评估影像质量对观察者诊断的影响。

这篇研究的目的是通过X线照相术检测模拟牙根内(IRR)和外(ERR)吸收的准确性评估不同亮度和对比变化对根尖周X线片的影响。另外,也评估影像质量对观察者诊断的影响。研究将30颗单根管牙齿分为2组(n=15):IRR,使用机械和化学方法进行模拟;ERR,使用不同大小的钻在牙根表面制备标准窝洞。拍摄数字X线影像,随后通过4种不同方式进行调节,得出5种亮度/对比变化模式(V1-V5)。由5名放射线医师评估X线影像。也记录观察者对于影像质量的表现。结果显示,对于2种条件下,5种亮度/对比变化模式之间的准确性和特异性没有显著性差异(p>0.05),但是V4对于较大尺寸ERR的敏感性明显降低(+15% brightness/-15% contrast) (p<0.05)。观察者认为V2对于评估IRR和ERR的影像质量最佳(-15% brightness/+15% contrast)。结论:对于IRR和ERR,亮度和对比变化在研究的测试范围内并不影响对口内数字X线影像诊断的表现。观察者更喜欢具有合理的亮度降低和对比度增加的影像。临床意义:亮度和对比度已经常规应用于数字X线影像的评估中。利

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    2019-01-26 小几洁
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    2019-10-03 respect
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    2019-01-07 wxl882001

    了解一下

    0

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    2019-01-03 piaojinhua
  6. [GetPortalCommentsPageByObjectIdResponse(id=2051307, encodeId=a4cd205130e37, content=<a href='/topic/show?id=95f8e042dd' target=_blank style='color:#2F92EE;'>#EST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7042, encryptionId=95f8e042dd, topicName=EST)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e9a6357, createdName=xiangyuzhou971, createdTime=Fri Feb 01 05:02:00 CST 2019, time=2019-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2020532, encodeId=62722020532f1, content=<a href='/topic/show?id=1584134451c' target=_blank style='color:#2F92EE;'>#Oral#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13445, encryptionId=1584134451c, topicName=Oral)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIpeueeYB1kem1yfEZrSYKBdZBoqac9USf0RxIgRICBIyDn4licyiaiakNnobeCDVpvwqaWgwTNeLRHA/132, createdBy=bb5e2500127, createdName=小几洁, createdTime=Sat Jan 26 13:02:00 CST 2019, time=2019-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1775931, encodeId=ae6a1e75931b0, content=<a href='/topic/show?id=ede06694367' target=_blank style='color:#2F92EE;'>#灵敏度#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66943, encryptionId=ede06694367, topicName=灵敏度)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fd6838842412, createdName=respect, createdTime=Thu Oct 03 10:02:00 CST 2019, time=2019-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=357496, encodeId=22ed35e49688, content=了解一下, 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/NUyjXTCJjo6KcicAVC1MwuOgo3iaicb1Imgk1yIfnvr6oXzibcAFB6puAyNJXbzWhNuLqaFYBVRWjh7rghkvFLPxMAfD5ib3nXwVD/0, createdBy=bed21972958, createdName=wxl882001, createdTime=Mon Jan 07 22:04:43 CST 2019, time=2019-01-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1298033, encodeId=591c1298033f6, content=<a href='/topic/show?id=c42d18892ad' target=_blank style='color:#2F92EE;'>#X线#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18892, encryptionId=c42d18892ad, topicName=X线)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5c64275, createdName=piaojinhua, createdTime=Thu Jan 03 13:02:00 CST 2019, time=2019-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1401879, encodeId=539414018e91d, content=<a href='/topic/show?id=a165189092e' target=_blank style='color:#2F92EE;'>#X线片#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18909, encryptionId=a165189092e, topicName=X线片)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=19412365947, createdName=jiyangfei, createdTime=Thu Jan 03 13:02:00 CST 2019, time=2019-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=356947, encodeId=060935694e30, content=学习了很有用不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Wed Jan 02 00:19:52 CST 2019, time=2019-01-02, status=1, ipAttribution=)]
    2019-01-03 jiyangfei
  7. [GetPortalCommentsPageByObjectIdResponse(id=2051307, encodeId=a4cd205130e37, content=<a href='/topic/show?id=95f8e042dd' target=_blank style='color:#2F92EE;'>#EST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7042, encryptionId=95f8e042dd, topicName=EST)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e9a6357, createdName=xiangyuzhou971, createdTime=Fri Feb 01 05:02:00 CST 2019, time=2019-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2020532, encodeId=62722020532f1, content=<a href='/topic/show?id=1584134451c' target=_blank style='color:#2F92EE;'>#Oral#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13445, encryptionId=1584134451c, topicName=Oral)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIpeueeYB1kem1yfEZrSYKBdZBoqac9USf0RxIgRICBIyDn4licyiaiakNnobeCDVpvwqaWgwTNeLRHA/132, createdBy=bb5e2500127, createdName=小几洁, createdTime=Sat Jan 26 13:02:00 CST 2019, time=2019-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1775931, encodeId=ae6a1e75931b0, content=<a href='/topic/show?id=ede06694367' target=_blank style='color:#2F92EE;'>#灵敏度#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66943, encryptionId=ede06694367, topicName=灵敏度)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fd6838842412, createdName=respect, createdTime=Thu Oct 03 10:02:00 CST 2019, time=2019-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=357496, encodeId=22ed35e49688, content=了解一下, 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/NUyjXTCJjo6KcicAVC1MwuOgo3iaicb1Imgk1yIfnvr6oXzibcAFB6puAyNJXbzWhNuLqaFYBVRWjh7rghkvFLPxMAfD5ib3nXwVD/0, createdBy=bed21972958, createdName=wxl882001, createdTime=Mon Jan 07 22:04:43 CST 2019, time=2019-01-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1298033, encodeId=591c1298033f6, content=<a href='/topic/show?id=c42d18892ad' target=_blank style='color:#2F92EE;'>#X线#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18892, encryptionId=c42d18892ad, topicName=X线)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5c64275, createdName=piaojinhua, createdTime=Thu Jan 03 13:02:00 CST 2019, time=2019-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1401879, encodeId=539414018e91d, content=<a href='/topic/show?id=a165189092e' target=_blank style='color:#2F92EE;'>#X线片#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18909, encryptionId=a165189092e, topicName=X线片)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=19412365947, createdName=jiyangfei, createdTime=Thu Jan 03 13:02:00 CST 2019, time=2019-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=356947, encodeId=060935694e30, content=学习了很有用不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Wed Jan 02 00:19:52 CST 2019, time=2019-01-02, status=1, ipAttribution=)]
    2019-01-02 飛歌

    学习了很有用不错

    0

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