Radiology:MR成像靶向前列腺活检的**度研究

2018-04-06 shaosai MedSci原创

目的 用经直肠超声检查(US)测量活检针在磁共振(MR)成靶向活检的精确度,记录精确度的临床相关性。

目的 用经直肠超声检查(US)测量活检针在磁共振(MR)成靶向活检的精确度,记录精确度的临床相关性。

资料和方法 本前瞻性研究经机构审查委员会批准,于2013年6月至2013年9月期间进行。患者提供了口头知情同意。本研究共纳入了来自两个中心的88例PI RADS≥3分的前列腺检查患者。使用活检中的数字成像和通信医学档案中的核心到中心的距离(dCC)和从核心到目标表面的距离作为球体建模,用欧几里德几何测量精度。为了解决来自同一患者多个核心数据的聚类问题,精确分析需专注于病人或技术的最佳拍摄。 适当使用Welch不等方差t检验和Yates校正χ2检验。

结果 平均精确度为2.5mm(95%置信区间:1.8mm,3.3mm)。阳性核心比阴性核心更接近中心(dCC分别为1.7毫米和3.1毫米; P = 0.025)。在靶上核心检测到比靶外核更多的癌症(71个核心中的33个[46.5%]比17个核心中的三个[17.6%]; P = .03)。用融合技术获得的核心比用认知技术获得的核心获得更高的精度(dCC分别为2.8 mm和7.1 mm; P <0.0001)。44例患者的靶向核心表现出癌症。使用认知技术检测出的癌症比融合技术检测出的癌症更少(44例患者中的31例[70.5%]与44例患者中的40例[90.9%]; P = .03)。

结论 形变MR成像/经直肠超声配准系统比认知识别技术对癌症的显示价值更高。

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    2018-04-08 杨柳青青

    签到学习了--

    0

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    2018-04-08 smlt2008
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    2018-04-06 虈亣靌

    谢谢分享学习了

    0

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    2018-04-06 清风拂面

    谢谢分享学习

    0

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