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Improved image quality and diagnostic potential using ultra-high-resolution computed tomography of the lung with small scan FOV: A prospective study

机译：使用超小扫描视野的肺部超高分辨率计算机断层扫描技术可改善图像质量和诊断潜力：一项前瞻性研究

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The aim of this study was to assess whether CT imaging using an ultra-high-resolution CT (UHRCT) scan with a small scan field of view (FOV) provides higher image quality and helps to reduce the follow-up period compared with a conventional high-resolution CT (CHRCT) scan. We identified patients with at least one pulmonary nodule at our hospital from July 2015 to November 2015. CHRCT and UHRCT scans were conducted in all enrolled patients. Three experienced radiologists evaluated the image quality using a 5-point score and made diagnoses. The paired images were displayed side by side in a random manner and annotations of scan information were removed. The following parameters including image quality, diagnostic confidence of radiologists, follow-up recommendations and diagnostic accuracy were assessed. A total of 52 patients (62 nodules) were included in this study. UHRCT scan provides a better image quality regarding the margin of nodules and solid internal component compared to that of CHRCT (P < 0.05). Readers have higher diagnostic confidence based on the UHRCT images than of CHRCT images (P<0.05). The follow-up recommendations were significantly different between UHRCT and CHRCT images (P<0.05). Compared with the surgical pathological findings, UHRCT had a relative higher diagnostic accuracy than CHRCT (P > 0.05). These findings suggest that the UHRCT prototype scanner provides a better image quality of subsolid nodules compared to CHRCT and contributes significantly to reduce the patients' follow-up period.
机译：这项研究的目的是评估与传统扫描仪相比，使用超高分辨率CT（UHRCT）扫描和较小的扫描视野（FOV）进行的CT成像能否提供更高的图像质量并有助于缩短随访时间高分辨率CT（CHRCT）扫描。我们从2015年7月至2015年11月在我们的医院确定了至少有一个肺结节的患者。所有入组患者均进行了CHRCT和UHRCT扫描。三位经验丰富的放射科医生使用5分评分评估了影像质量并做出了诊断。配对的图像以随机方式并排显示，并且删除了扫描信息的注释。评估了以下参数，包括图像质量，放射科医生的诊断信心，后续建议和诊断准确性。本研究共纳入52位患者（62个结节）。与CHRCT相比，UHRCT扫描在结节和固体内部成分的边缘方面提供了更好的图像质量（P <0.05）。与CHRCT图像相比，基于UHRCT图像的读者的诊断置信度更高（P <0.05）。 UHRCT和CHRCT图像之间的随访建议存在显着差异（P <0.05）。与手术病理结果相比，UHRCT的诊断准确性高于CHRCT（P> 0.05）。这些发现表明，与CHRCT相比，UHRCT原型扫描仪可提供更好的亚实性结节图像质量，并显着减少了患者的随访时间。

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