Anssi Kesti-Helia,Sampsa Lappalainen,Timo K. Koponen,Perttu Niemela
申请号：
US15076439
公开号：
US20170266462A1
申请日:
2016.03.21
申请国别(地区):
US
年份:
2017
代理人:
摘要：
System includes a beam generator to generate beam(s) for patient treatment and a computing device that obtains three-dimensional image(s) of a target structure that repositions with respect to surrounding tissue of the patient. The computing device creates plan(s) including a first three-dimensional probability distribution of patients position and a second three-dimensional probability distribution of the repositioned structures internal position. The computing device combines the first distribution with the second distribution to generate a joint distribution and selects a probability level from the joint distribution. The probability level defines an enclosed surface. A distance defined between the surface and a point of origin in at least one direction is equal to a threshold value of a parameter of the repositioned target in the direction. The computing device projects the surface to a plane positioned relative to a direction of the beam for the generation of beam-specific planning target volume design output(s).
