Examination of the Chest Computed Tomography Scan Condition Optimization in Consideration of the Influence of the Position of the Arms

• Published in: Japanese Journal of Radiological Technology Vol. 68; no. 7; pp. 851 - 856
• Main Authors: Matsumoto, Yoriaki, Satou, Tomoyasu, Maruyama, Naoya, Imada, Naoyuki, Ishibashi, Tooru, Masuda, Takanori, Inada, Satoshi
• Format: Journal Article
• Language: English
• Published: Japanese Society of Radiological Technology 01.01.2012
• Subjects: chest CT; computed tomography automatic exposure control (CT-AEC); localizer radiograph; noise index (NI); over-dose

Computed tomography automatic exposure control (CT-AEC) technique is calculated from a localizer radiograph. When we perform neck and chest CT examination, at first, we acquire localizer radiograph and neck images by placing the arm in a lowered position. Next, the arm is raised for the chest scan....