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Changes in chest wall thickness during four-dimensional CT in particle lung treatment planning
S Mori1, N Yamamoto, M Nakajima
1Research Centre for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan. shinshin@nirs.go.jp
The British Journal of Radiology
|July 14, 2011
Abstract:
Four-dimensional (4D) CT images for charged particle lung therapy were acquired using a 256 multislice CT without couch movement. The thickness of the posterior right chest wall changed with respiration with a water equivalent path length (WEL) of more than 5 mm over the mid-exhalation phase but the thickness of the left chest wall did not vary.
