Yoshinori Funama PhD, Presenter: Nothing to Disclose

Taiga Goto, Abstract Co-Author: Employee, Hitachi, Ltd

Yuko Aoki, Abstract Co-Author: Employee, Hitachi, Ltd

Osamu Miyazaki, Abstract Co-Author: Employee, Hitachi Ltd

Fumio Kawamata, Abstract Co-Author: Nothing to Disclose

Kazuo Awai MD, Abstract Co-Author: Research Grant, Toshiba Corporation Research Grant, Hitachi Ltd Research Grant, Bayer AG Research Consultant, DAIICHI SANKYO Group Research Grant, Eisai Co, Ltd

1. Present an approach to reduce the X-ray radiation dose by using advanced CT techniques in the screening and the follow-up examination of the lung cancer. 2. Provide a possible countermeasure to reduce radiation dose to the patient while improving clinical workflow.  

Table of Contents: 1. Screening and follow-up examination scheme for lung cancer 2. The roles and challenges of lung cancer screening CT (LCSCT) 3. Outline of two types of iterative reconstruction (IR) techniques       1) Hybrid IR       2) Model-based IR 4. The imaging performance of both hybrid and model-based IR 5. Near future aspect of LCSCT      1) Low dose high resolution CT (HRCT)      2) Ultra-low dose CT for lung cancer screening Outline: The most challenging part of the LCSCT, recommended by many organizations for high risk patients, is to lower radiation dose to the patient. This exhibit presents  The key aspects to be considered in LCSCT for reducing the radiation dose  Reconstruction of high resolution CT (HRCT) images from low-dose CT scan data (1-2mSv) using IR techniques to avoid unnecessary repeat CT scans  How IR affects the visibility of the lung nodules including ground-glass opacity (GGO) nodule  The feasibility of ultra low-dose CT (0.1mSv) for lung cancer screening  

http://abstract.rsna.org/uploads/2014/14007625/14007625_xxmr.pdf

Funama, Y, Goto, T, Aoki, Y, Miyazaki, O, Kawamata, F, Awai, K, Next Generation of Low-dose CT Screening for Lung Cancer: Simultaneous Achievement of Radiation Dose Reduction and Image Quality Improvement.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14007625.html