48 results about "Dose verification" patented technology

The invention discloses a beam dose distribution measurement device, which comprises a first-layer detector, a second-layer detector, a third-layer detector, a collimator and a signal processing module, wherein the first-layer detector, the second-layer detector and the third-layer detector are arranged in an overlapped mode sequentially; the collimator is arranged above the first-layer detector; and the first-layer detector, the second-layer detector, the third-layer detector and the collimator are all electrically connected with the signal processing module. the beam dose distribution measurement device disclosed by the invention has the advantages that the dose verification time can be reduced; the space distribution verification precision can be improved; arrangement of huge and expensive online PET is avoided; a postoperative PET scanning procedure is removed; the dose space distribution verification precision can reach 1 mm; the preoperative verification time is compressed to 15 m; the online monitoring time is completely synchronous with the treatment; no extra verification time is needed; and the verification time can be greatly reduced.

A system for verifying medication doses in a filled medication package comprises an imaging unit to produce at least one image of a filled medication package and a verification unit for receiving the image of the filled medication package. The verification unit comprises a dose locator to determine from the image a location of any dose in the filled medication package, and associate a time period to the location. It also comprises a dose verifier to verify an identity of any dose from the visual characteristics of the image as a function of dose reference profiles. The verification unit compares an identity and time period of the doses of the filled medication package to a prescription and has an interface for producing verification output based on the comparison of the verification unit. A method for verifying medication doses in a filled medication package is also provided.

The invention provides a precise dose verification method, device and equipment for tumor patients, including establishing a tumor patient information database; classifying patient sample data in the tumor patient information database, establishing an accurate radiotherapy dose verification evaluation model, and obtaining a dose verification based on patient DVH The normalized QA index of the tumor patient information database is analyzed by the parameter analysis algorithm to obtain the key planning parameters of the tumor patient; the key planning parameters of the tumor patient information database sample are used as input parameters to be input into the patient precision radiotherapy The dose verification and evaluation model is corrected by a recursive algorithm to correct the patient's precision radiotherapy dose verification and evaluation model, and an individualized QA automatic prediction model for precision radiotherapy planning is constructed. The present invention realizes the optimization of the precise radiotherapy dose verification and evaluation model by extracting associated plan parameters and algorithms, and obtains the QA index for precise radiotherapy plan prediction through optimization of the recursive algorithm, thereby realizing accurate QA prediction and high evaluation efficiency.

The present invention relates to a 4D dose reconstruction device, and discloses a dose reconstruction method based on tumor motion tracking and radiotherapy, including: step S1, obtaining the tumor centroid motion core, and obtaining the tumor centroid in the LR direction, CC direction and AP direction Time function; step S2, obtain the motion parameters of the tumor center of mass according to the time function in the LR direction and the CC direction in step S1; step S3, control the driving module to drive the dose verification device LR and CC to move in two directions according to the motion parameters in step S2 , step S4, the influence of AP direction movement on the dose is realized by real-time online correction of the percentage depth dose PDD parameter method, and finally realizes the 4D dose reconstruction of the dose verification device and obtains the reconstructed 4D dose data. The introduction of the three-dimensional movement factor of the tumor in the present invention can effectively improve the radiotherapy plan of the tumor, make the final treatment of the patient closer to the actual situation, and greatly improve the safety and effectiveness of the radiotherapy of the tumor.