| 摘要 |
<p>A system according to some embodiments may include a treatment head (11 ) to emit a megavoltage radiation beam toward a volume (55), a plurality of X-ray sources (24, 25) to emit a respective kilovoltage radiation beam toward the volume while the plurality of X-ray sources are substantially stationary with respect to the volume, a detector (26, 27) to receive the plurality of kilovoltage radiation beams, and a processor (303) to generate a three- dimensional image of the volume based only on the plurality of kilovoltage radiation beams received by the detector while the plurality of X-ray sources were substantially stationary with respect to the volume.</p> |
