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首页> 美国卫生研究院文献>Scientific Reports >Impact of the use of an endorectal coil for 3 T prostate MRI on image quality and cancer detection rate
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Impact of the use of an endorectal coil for 3 T prostate MRI on image quality and cancer detection rate

机译：使用直肠内线圈进行3T前列腺MRI检查对图像质量和癌症检出率的影响

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This work aims to assess the impact of an additional endorectal coil on image quality and cancer detection rate within the same patients. At a single academic medical center, this transversal study included 41 men who underwent T2- and diffusion-weighted imaging at 3 T using surface coils only or in combination with an endorectal coil in the same session. Two blinded readers (A and B) randomly evaluated all image data in separate sessions. Image quality with respect to localization and staging was rated on a five-point scale. Lesions were classified according to their prostate imaging reporting and data system (PIRADS) score version 1. Standard of reference was provided by whole-mount step-section analysis. Mean image quality scores averaged over all localization-related items were significantly higher with additional endorectal coil for both readers (p < 0.001), corresponding staging-related items were only higher for reader B (p < 0.001). With an endorectal coil, the rate of correctly detecting cancer per patient was significantly higher for reader B (p < 0.001) but not for reader A (p = 0.219). The numbers of histologically confirmed tumor lesions were rather similar for both settings. The subjectively rated 3-T image quality was improved with an endorectal coil. In terms of diagnostic performance, the use of an additional endorectal coil was not superior.
机译：这项工作旨在评估在同一患者中额外的直肠内线圈对图像质量和癌症检出率的影响。在一个学术医学中心，这项横向研究包括41名在3 menT时仅使用表面线圈或与直肠内线圈组合进行T2和弥散加权成像的男性。两名盲人读者（A和B）在单独的会话中随机评估了所有图像数据。相对于本地化和分级的图像质量以五分制为标准。病变根据其前列腺成像报告和数据系统（PIRADS）评分版本1进行分类。参考标准是通过整个阶梯式截面分析提供的。两种阅读器均具有附加的直肠内线圈，所有与定位相关的项目的平均图像质量得分均显着较高（p <0.001），相应的分期相关项仅对于阅读器B较高（p <0.001）。使用直肠内线圈时，阅读器B的每位患者正确检出癌症的比率显着更高（p <0.001），但阅读器A则没有（p = 0.219）。在两种情况下，经组织学确认的肿瘤病变的数量都非常相似。直肠内线圈改善了主观评价的3-T图像质量。就诊断性能而言，使用额外的直肠内线圈并不优越。

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