Application of computed radiography for the diagnosis of pneumoconioses.
Authors
Nobechi T; Tateno Y; Shida H; Hosoda Y; Toriwaki J; Kobatake H; Iinuma T; Fukuhisa K; Matsumoto T; Takano M; Kato H; Tachi M; Chiba Y
Source
Proceedings of the VIIth International Pneumoconioses Conference, August 23-26, 1988, Pittsburgh, Pennsylvania, USA. Atlanta, GA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 90-108, 1990 Sep; (Part I):495-496
Experiments were carried out to determine the application of computer radiography for the diagnosis of cases of pneumoconiosis. For two of the experiments the International Labor Office (ILO) Standard films and test films selected from training films of pneumoconioses in the United States were digitized by using a drum scanner. In another of the experiments the Fuji Computed Radiography (FCR) films of pneumoconioses patients were used with the fixed contrast of 0.85 gamma with several spacial frequency characteristics. Magnetic tapes of the digitized images of ILO standard film and test films and FCR were used for the evaluation of the automatic determination of the size and profusion of small rounded opacities. Two methods were used for this purpose. The one was a direct detection method using difference linear filtering and the other was a texture analysis method. It was apparently easy to determine the size and various other parameters, while the automatic categorization of the profusion was not so easy for the low profusion groups, although various methods disclosed an accuracy of 45 to 71%. The authors conclude that the results of these experiments are promising for the future application of computer technique for the automatic diagnosis of pneumoconioses.
Links with this icon indicate that you are leaving the CDC website.
The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
You will be subject to the destination website's privacy policy when you follow the link.
CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website.
For more information on CDC's web notification policies, see Website Disclaimers.
CDC.gov Privacy Settings
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.
Thank you for taking the time to confirm your preferences. If you need to go back and make any changes, you can always do so by going to our Privacy Policy page.