| 摘要 |
In a quality control method and computer for planning radiotherapy of patient, magnetic resonance (MR) image data, acquired from a planning volume of a patient, are provided to a computer and are used in the computer to generate a first electron density map of the planning volume. A second electron density map is generated using the first electron density map, wherein a value of electron density for a bone region in the planning volume is reduced compared to the first electron density map. First and second radiation dose distributions in the planning volume are respectively determined from the radiotherapy plan and the first electron density map, and the radiotherapy plan and the second electron density map. These distributions are compared in order to generate output information. |
| 主权项 |
1. A quality control method for planning radiotherapy of a patient, comprising:
providing a computer with magnetic resonance image data acquired from a planning volume of a patient; in said computer, using the magnetic resonance data to generate a first electron density map of said planning volume, said first electron density map having a first value of the electron density for at least one bone region in the planning volume; in said computer, using said first electron density map to calculate a second electron density map, said second electron density map having a second value of the electron density for said at least one bone region, that is reduced with respect to said first value of said electron density for said at least one bone region; providing said computer with an electronic designation of a radiotherapy plan for implementing radiotherapy of a target volume situated in said planning volume; in said computer, using said radiotherapy plan and said first electron density map to determine a first radiation dose distribution in the planning volume; in said computer, using said radiotherapy plan and said second electron density map to determine a second radiation dose distribution in the planning volume; in said computer, comparing said first radiation dose distribution with said second radiation dose distribution with said second radiation dose distribution to obtain a comparison result; and in said computer, using said comparison result to generate output information related to implementation of said radiotherapy plan, and making an electronic signal representing said output information available from said computer as an output. |
