Lung cancer: intermittent irradiation synchronized with respiratory motion--results of a pilot study.

Abstract

Synchronized irradiation with the authors' system allowed convenient and reliable reduction of the target volume. Further study is needed to standardize the system for clinical use.

Correlation between the respiratory waveform measured using a respiratory sensor and 3D tumor motion in gated radiotherapy

“…1 1A]) was used for the respiratory sensor (13,14). This is not a three-dimensional position-sensitive detector but the displacement sensor and can obtain just one-dimensional information about distance from detector head to a subject.…”

Fiducial-Less Respiration Tracking in Radiosurgery

“…al. [9] report using an external laser range sensor in connection with a LINAC-based system for respiratory gating. This device is used to switch the beam off whenever the sensor reports that the respiratory cycle is close to maximal inhalation or maximal exhalation.…”

Lung Dose for Minimally Moving Thoracic Lesions Treated With Respiration Gating

“…The most widespread method for managing the motion of mobile tumors (7) is based on beam gating, accomplished either with breath holding (7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) or with free breathing (7,16,(19)(20)(21)(22)(23)(24). Gating can be implemented by tracking either an external respiratory signal (16,24) or implanted internal fiducial markers (23,25). Gating is usually performed at the end-of-exhale (EOE) phase, while gating at the end-of-inhale (EOI) phase has only been of an academic interest (26)(27)(28) so far.…”