نتایج جستجو برای: ray tomography computer assisted diagnosis maximum permissible exposure level

تعداد نتایج: 2891736  

Journal: :Quantitative imaging in medicine and surgery 2014
Stefan Jaeger Sema Candemir Sameer Antani Yì-Xiáng J Wáng Pu-Xuan Lu George Thoma

The U.S. National Library of Medicine has made two datasets of postero-anterior (PA) chest radiographs available to foster research in computer-aided diagnosis of pulmonary diseases with a special focus on pulmonary tuberculosis (TB). The radiographs were acquired from the Department of Health and Human Services, Montgomery County, Maryland, USA and Shenzhen No. 3 People's Hospital in China. Bo...

Journal: :iranian red crescent medical journal 0
balachandar s sayapathi centre for occupational and environmental health, university of malaya, kuala lumpur, malaysia; department of ministry of health, kuala lumpur, malaysia; centre for occupational and environmental health, university of malaya, kuala lumpur, malaysia. tel: +60-138049126, fax: +60-82442941 anselm ting su department of community medicine and public health, faculty of medicine and health sciences, university malaysia sarawak, sarawak, malaysia; department of hygiene, school of medicine, wakayama medical university, wakayama, japan david koh occupational health and medicine center, paprsb institute of health sciences, university brunei darussalam, bandar seri begawan, brunei; ssh school of public health, national university of singapore, singapore, singapore

conclusions the adoption of 85 dba as the permissible exposure limit has preserved hearing threshold level among participants at 3000 hz compared to those who embraced 90 dba. patients and methods this is an intervention study done on two automobile factories. there were 203 employees exposed to noise levels beyond the action level. hearing protection devices were distributed to reduce noise le...

Journal: :Optics letters 2014
Xinyu Liu Xiaojun Yu Hongying Tang Dongyao Cui Meghna R Beotra Michael J A Girard Ding Sun Jun Gu Linbo Liu

We have developed an extended source optical coherence tomography (SEES-OCT) technique in an attempt to improve signal strength for ophthalmic imaging. A line illumination with a visual angle of 7.9 mrad is produced by introducing a dispersive element in the infinity space of the sample arm. The maximum permissible exposure (MPE) of such an extended source is 3.1 times larger than that of a "st...

2017
Wolfgang Hohenforst-Schmidt Konstantinos Grapatsas Manfred Dahm Paul Zarogoulidis Vasileios Leivaditis Christophoros Kotoulas Periclis Tomos Efstratios Koletsis Zoi Tsilogianni Naim Benhassen Haidong Huang Christoforos Kosmidis Bora Kosan

Solitary Fibrous Tumor of the Pleura (SFTP) is a rare tumor of the pleura. Worldwide about 800 patients diagnosed with this oncological entity have been described in the existing literature. We report our center's 13 year experience. During this time three patients suffering from this rare disease have been treated in our department. All patients were asymptomatic and their diagnosis was initia...

Journal: :British Journal of Ophthalmology 1974

2009
HALLVARD LILLEHAMMER

Much work in contemporary bioethics defends a broadly liberal view of human reproduction. I shall take this view to comprise (but not to be exhausted by) the following four claims. First, it is permissible both to reproduce and not to reproduce, either by traditional means or by means of assisted reproductive techniques such as IVF and genetic screening. Second, it is permissible either to repr...

Journal: :Journal of the American College of Cardiology 1991

2012
Synho Do Kristen Salvaggio Supriya Gupta Mannudeep K. Kalra Nabeel U. Ali Homer H. Pien

An automated, computer-aided diagnosis (CAD) algorithm for the quantification of pneumothoraces from Multidetector Computed Tomography (MDCT) images has been developed. Algorithm performance was evaluated through comparison to manual segmentation by expert radiologists. A combination of two-dimensional and three-dimensional processing techniques was incorporated to reduce required processing ti...

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