Lung Cancers Missed on Chest Radiographs: Results Obtained with a Commercial Computer-aided Detection Program

Radiology ◽  
2008 ◽  
Vol 246 (1) ◽  
pp. 273-280 ◽  
Author(s):  
Feng Li ◽  
Roger Engelmann ◽  
Charles E. Metz ◽  
Kunio Doi ◽  
Heber MacMahon
2020 ◽  
Vol 30 (9) ◽  
pp. 4943-4951
Author(s):  
Young-Gon Kim ◽  
Sang Min Lee ◽  
Kyung Hee Lee ◽  
Ryoungwoo Jang ◽  
Joon Beom Seo ◽  
...  

Author(s):  
Ammar Chaudhry ◽  
Ammar Chaudhry ◽  
William H. Moore

Purpose: The radiographic diagnosis of lung nodules is associated with low sensitivity and specificity. Computer-aided detection (CAD) system has been shown to have higher accuracy in the detection of lung nodules. The purpose of this study is to assess the effect on sensitivity and specificity when a CAD system is used to review chest radiographs in real-time setting. Methods: Sixty-three patients, including 24 controls, who had chest radiographs and CT within three months were included in this study. Three radiologists were presented chest radiographs without CAD and were asked to mark all lung nodules. Then the radiologists were allowed to see the CAD region-of-interest (ROI) marks and were asked to agree or disagree with the marks. All marks were correlated with CT studies. Results: The mean sensitivity of the three radiologists without CAD was 16.1%, which showed a statistically significant improvement to 22.5% with CAD. The mean specificity of the three radiologists was 52.5% without CAD and decreased to 48.1% with CAD. There was no significant change in the positive predictive value or negative predictive value. Conclusion: The addition of a CAD system to chest radiography interpretation statistically improves the detection of lung nodules without affecting its specificity. Thus suggesting CAD would improve overall detection of lung nodules.


2006 ◽  
Vol 13 (8) ◽  
pp. 995-1003 ◽  
Author(s):  
Junji Shiraishi ◽  
Hiroyuki Abe ◽  
Feng Li ◽  
Roger Engelmann ◽  
Heber MacMahon ◽  
...  

Radiology ◽  
2010 ◽  
Vol 257 (2) ◽  
pp. 532-540 ◽  
Author(s):  
Bartjan de Hoop ◽  
Diederik W. De Boo ◽  
Hester A. Gietema ◽  
Frans van Hoorn ◽  
Banafsche Mearadji ◽  
...  

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Juan Manuel Carrillo-de-Gea ◽  
Ginés García-Mateos ◽  
José Luis Fernández-Alemán ◽  
José Luis Hernández-Hernández

Computer-aided detection systems aim at the automatic detection of diseases using different medical imaging modalities. In this paper, a novel approach to detecting normality/pathology in digital chest radiographs is proposed. The problem tackled is complicated since it is not focused on particular diseases but anything that differs from what is considered as normality. First, the areas of interest of the chest are found using template matching on the images. Then, a texture descriptor called local binary patterns (LBP) is computed for those areas. After that, LBP histograms are applied in a classifier algorithm, which produces the final normality/pathology decision. Our experimental results show the feasibility of the proposal, with success rates above 87% in the best cases. Moreover, our technique is able to locate the possible areas of pathology in nonnormal radiographs. Strengths and limitations of the proposed approach are described in the Conclusions.


2013 ◽  
Vol 26 (4) ◽  
pp. 651-656 ◽  
Author(s):  
Ronald D. Novak ◽  
Nicholas J. Novak ◽  
Robert Gilkeson ◽  
Bahar Mansoori ◽  
Gunhild E. Aandal

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