ROMESBERG III MERLE E,NIZIN PAUL S,PINO RAMIRO,NIZIN PAUL S
申请号：
IN466/KOLNP/2009
公开号：
IN278818B
申请日:
2009.02.03
申请国别(地区):
IN
年份:
2017
代理人:
摘要：
A system (30) to provide enhanced computational effeciency in determining dose in a media of varying density from a high-energy radiation-beam for radiation treatment, program product (37), and related methods are provided. The system (30) can include a radiation treatment planning computer (31) and radiation treatment planning program product (37) stored in the memory (33) of the radiation treatment planning computer (31) and adapted to enhance optimization of a radiation treatment plan for delivering radiation to a complex medium defining a patient volume. The radiation treatment planning program product (37) provides functions including those for predetermining a delivery machine-dependent representation of radiation dose for a plurality of different electron densities selected over a preselected representative range, predetermining a depth-dependent representation of central axis properties of a pencil beam passing through a complex medium for each of a plurality of pencil beams, and determining with constant lime computational complexity radiation dose for each of :i plurality of points of interest in a heterogeneous medium having a complex spatial distribution of heterogeneous electron densities by applying I he predetermined machine-dependent and depth-dependent representations.
