SPIRAL CT OF THE CHEST - COMPARISON OF CINE AND FILM-BASED VIEWING
SPIRAL CT OF THE CHEST - COMPARISON OF CINE AND FILM-BASED VIEWING
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DOI：
10.1148/radiology.197.1.7568857
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发表时间：
1995-10-01
期刊：
影响因子：
19.7
通讯作者：
FELDMAN, U
中科院分区：
文献类型：
--
作者：
SELTZER, SE;JUDY, PF;FELDMAN, U
目的：探讨胸部螺旋CT快速连续(Cine)扫描和常规胶片扫描对肺结节的诊断能力。材料和方法：8名放射科医生在螺旋CT图像(10 mm准直，10 mm/s)上以两种格式显示肺结节。电影观看在计算机工作站上进行；以2 mm的增量以高达每秒10帧的帧速率观看部分。用灯箱对激光打印机的图像进行基于胶片的查看；以4 mm的增量查看切片。结果：放射科医生发现电影表现的结节比例高于胶片显示的结节比例(平均0.69+/-0.02[标准误差]对0.58+/-0.03，P=0.006)。结节检出阈值(50%定位正确率)分别为3.3 mm和3.5 mm。结论：胸部螺旋CT影像电影显示提高了放射科医师检出结节的能力。
PURPOSE: To determine radiologists' ability to find lung nodules on spiral computed tomographic (CT) scans of the chest with both rapid sequential (cine) and conventional film-based viewing.MATERIALS AND METHODS: Eight radiologists searched for lung nodules on spiral CT images (10-mm collimation, 10 mm/sec table speed) presented in two formats. Cine viewing was performed at a computer workstation; sections were viewed in 2-mm increments at frame rates up to 10 frames per second. Film-based viewing of images from a laser printer was performed with a lightbox; sections were viewed at 4-mm increments. Eight 3-5-mm-diameter simulated nodules were superimposed on each of five normal CT scans.RESULTS: Radiologists found a higher fraction of nodules with the cine presentation than with film (mean, 0.69 +/- 0.02 [standard error] versus 0.58 +/- 0.03, respectively [P = .006]). Diameter thresholds for nodule detection (50% correctly localized) were 3.3 and 3.5 mm, respectively.CONCLUSION: Cine viewing of spiral CT images of the chest improved radiologists' ability to detect nodules.