نتایج جستجو برای: computed tomography dose reduction

تعداد نتایج: 1018046  

Journal: :Journal of the Korea Society for Industrial and Applied Mathematics 2014

Journal: :Academic radiology 2004
Hidetaka Arimura Shigehiko Katsuragawa Kenji Suzuki Feng Li Junji Shiraishi Shusuke Sone Kunio Doi

RATIONALE AND OBJECTIVES A computerized scheme for automated detection of lung nodules in low-dose computed tomography images for lung cancer screening was developed. MATERIALS AND METHODS Our scheme is based on a difference-image technique for enhancing the lung nodules and suppressing the majority of background normal structures. The difference image for each computed tomography image was o...

2012
Stefan P. Lemburg Daniela Roggenland Volkmar Nicolas Christoph M. Heyer

OBJECTIVES Evaluation of structural changes and the weight given to radiation exposure of interventional radiology (IR) contributions at the Congress of the German Radiological Association from 1998 to 2008. METHODS All IR abstracts were evaluated for type of contribution, design, imaging modality, and anatomic region. Weight given to radiation exposure was recorded as general statement, main...

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