CHARGED PARTICLE CANCER THERAPY IMAGING METHOD AND APPARATUS
First Claim
1. An apparatus for imaging a patient, the patient having a variable respiration rate during an irradiation period, said apparatus comprising:
- a statically positioned X-ray source;
a respiration sensor configured to generate a respiration signal, said respiration signal corresponding to a respiration pattern of the patient, said respiration pattern representing the variable respiration rate of the patient;
a rotatable platform configured to both (1) support the patient and (2) rotate the patient; and
means for collecting a set of X-ray images during the irradiation period, said set of X-ray images collected during a set of rotation positions of said rotatable platform, said set of rotation positions comprising at least five rotation positions covering at least ninety degrees of rotation,wherein at least five X-ray images of said set of X-ray images represent X-ray images of the patient at said at least five rotation positions of said rotatable platform, andwherein each of said five X-ray images represent a set time period of a respiration cycle occurring during one of said five rotation positions.
4 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a method and apparatus for treatment of a solid tumor. More particularly, the invention comprises a multi-axis and/or multi-field charged particle cancer therapy system. In one embodiment, the tumor is imaged from multiple directions in phase with patient respiration. The two-dimensional images are combined to produce a three-dimensional picture of the tumor relative to patient features. The resulting three-dimensional image is used in generation of a radiation treatment plan and subsequent radiation therapy with the radiation beam in terms of control of two-dimensional beam trajectory, delivered beam energy, delivered beam intensity, and/or beam velocity each as a function of patient vertical translation position, patient rotation position, and/or patient respiration.
-
Citations
20 Claims
-
1. An apparatus for imaging a patient, the patient having a variable respiration rate during an irradiation period, said apparatus comprising:
-
a statically positioned X-ray source; a respiration sensor configured to generate a respiration signal, said respiration signal corresponding to a respiration pattern of the patient, said respiration pattern representing the variable respiration rate of the patient; a rotatable platform configured to both (1) support the patient and (2) rotate the patient; and means for collecting a set of X-ray images during the irradiation period, said set of X-ray images collected during a set of rotation positions of said rotatable platform, said set of rotation positions comprising at least five rotation positions covering at least ninety degrees of rotation, wherein at least five X-ray images of said set of X-ray images represent X-ray images of the patient at said at least five rotation positions of said rotatable platform, and wherein each of said five X-ray images represent a set time period of a respiration cycle occurring during one of said five rotation positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method for imaging a patient, the patient having a variable respiration rate, said method comprising the steps of:
-
statically positioning an X-ray source; generating a respiration signal using a respiration sensor, said respiration signal corresponding to a respiration pattern of the patient, said respiration pattern representing the variable respiration rate of the patient; during an irradiation period of the patient, rotating a rotatable platform both supporting the patient; and collecting a set of X-ray images during the irradiation period, said set of X-ray images collected during a set of rotation positions of said rotatable platform, said set of rotation positions comprising at least five rotation positions covering at least ninety degrees of rotation, wherein at least five X-ray images of said set of X-ray images represent X-ray images of the patient at said at least five rotation positions of said rotatable platform, and wherein each of said five X-ray images represent a set time period of a respiration cycle occurring during one of said five rotation positions. - View Dependent Claims (17, 18, 19, 20)
-
Specification