Department of Radiology, Seoul National University College of Medicine, and Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul 03080, Korea.
Department of Radiology, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 54907, Korea.
Korean J Radiol. 2018 Jan-Feb;19(1):147-152. doi: 10.3348/kjr.2018.19.1.147. Epub 2018 Jan 2.
To evaluate the preference of observers for image quality of chest radiography using the deconvolution algorithm of point spread function (PSF) (TRUVIEW ART algorithm, DRTECH Corp.) compared with that of original chest radiography for visualization of anatomic regions of the chest.
Prospectively enrolled 50 pairs of posteroanterior chest radiographs collected with standard protocol and with additional TRUVIEW ART algorithm were compared by four chest radiologists. This algorithm corrects scattered signals generated by a scintillator. Readers independently evaluated the visibility of 10 anatomical regions and overall image quality with a 5-point scale of preference. The significance of the differences in reader's preference was tested with a Wilcoxon's signed rank test.
All four readers preferred the images applied with the algorithm to those without algorithm for all 10 anatomical regions (mean, 3.6; range, 3.2-4.0; < 0.001) and for the overall image quality (mean, 3.8; range, 3.3-4.0; < 0.001). The most preferred anatomical regions were the azygoesophageal recess, thoracic spine, and unobscured lung.
The visibility of chest anatomical structures applied with the deconvolution algorithm of PSF was superior to the original chest radiography.
评估观察者对使用点扩散函数（PSF）反卷积算法（TRUVIEW ART 算法，DRTECH 公司）处理后的胸部 X 射线图像质量的偏好，与原始胸部 X 射线相比，该算法更有利于显示胸部解剖区域。
前瞻性纳入 50 对采用标准方案采集的前后位胸部 X 射线，其中 25 对应用了 TRUVIEW ART 算法。4 名胸部放射科医师分别对这两种 X 射线进行独立评估。该算法可纠正闪烁体产生的散射信号。读者使用 5 分制偏好评分独立评估 10 个解剖区域的可见度和整体图像质量。采用 Wilcoxon 符号秩检验来检验读者偏好差异的显著性。
4 名读者均表示，与未应用算法的图像相比，他们更偏好应用了该算法的图像，在 10 个解剖区域（平均 3.6；范围，3.2-4.0； < 0.001）和整体图像质量（平均 3.8；范围，3.3-4.0； < 0.001）方面均如此。最受喜爱的解剖区域是奇静脉食管隐窝、胸椎和未受遮挡的肺部。
与原始胸部 X 射线相比，PSF 反卷积算法处理后的胸部解剖结构的可见度更高。
Zotero 插件
