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Interbreath-hold reproducibility of lung tumour position and reduction of the internal target volume using a voluntary breath-hold method with spirometer during stereotactic radiotherapy for lung tumours.
Br J Radiol
May 2007
Department of Radiology, Hiroshima University Graduate School of Medicine, Hiroshima, Japan.
The purpose of this study was to evaluate the interbreath-hold reproducibility of the tumour (gross tumour volume, GTV) position and relative reduction of the internal target volume (ITV) using a voluntary breath-hold method with a spirometer in a clinical setting of stereotactic radiotherapy (SRT) for lung tumours 11 patients with 14 lung tumours were enrolled in this study. CT scans were performed once at the free breathing phase and five times at the breath holding phase before the first treatment day. Patients held their breath at the end-expiration phase under spirometer-based monitoring.
View Article and Find Full Text PDFReproducibility of organ position using voluntary breath-hold method with spirometer for extracranial stereotactic radiotherapy.
Int J Radiat Oncol Biol Phys
November 2004
Department of Radiology, Hiroshima University Graduate School of Medicine, Hiroshima, Japan.
Purpose: To evaluate in healthy volunteers the reproducibility of organ position using a voluntary breath-hold method with a spirometer and the feasibility of this method for extracranial stereotactic radiotherapy in a clinical setting.
Methods And Materials: For this study, 5 healthy volunteers were enrolled. After training sessions, they held their breath at the end-inspiration and the end-expiration phase under spirometer-based monitoring.
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