SPIRAL CT OF THE CHEST - COMPARISON OF CINE AND FILM-BASED VIEWING

被引:96
作者
SELTZER, SE [1 ]
JUDY, PF [1 ]
ADAMS, DF [1 ]
JACOBSON, FL [1 ]
STARK, P [1 ]
KIKINIS, R [1 ]
SWENSSON, RG [1 ]
HOOTON, S [1 ]
HEAD, B [1 ]
FELDMAN, U [1 ]
机构
[1] HARVARD UNIV, BRIGHAM & WOMENS HOSP, SCH MED, DEPT RADIOL, 75 FRANCIS ST, BOSTON, MA 02115 USA
关键词
DIAGNOSTIC RADIOLOGY; OBSERVER PERFORMANCE; LUNG; CT; NODULE; WORKSTATION;
D O I
10.1148/radiology.197.1.7568857
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
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.
引用
收藏
页码:73 / 78
页数:6
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