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Varian Medical Systems, Inc., headquartered globally in Palo Alto, California, is the world's leading manufacturer of medical devices and software for treating cancer and other medical conditions with radiotherapy, radiosurgery, proton therapy, and brachytherapy. The company supplies informatics ...
Also known as kV CBCT or MV CBCT, this volumetric imaging technique uses an X-ray source, either kV or MV, to traverse a given trajectory around the object, while a two-dimensional detector (kV or MV imager, respectively) measures the radiation transmission through, and at many orientations around, the object. Complex reconstruction algorithms then convert the acquired projections into a 3D volumetric image. CBCT gives soft-tissue contrast of the object over a large volume with only a single rotation (circle scan) of the source. These CBCT scans can be acquired using a full (360 degree) or half (~200 degree) rotation of the kV or MV source.
Industry:Medical devices
Hesaplamalar, ölçüleri ve diğer etkinlikler radyasyon dozu belirlemek için teslim edilmesi gerekmektedir.
Industry:Medical devices
Areas of patient anatomy which receive high levels of radiation in a study.
Industry:Medical devices
A special radiation measuring device in which the collected electrical charge from ionization in a gas filled cavity is taken to be proportional to some parameter (for example, dose or exposure) or radiation field. Also ionization chamber or ion chamber.
Industry:Medical devices
Treatment method that correlates treatment (beam on and off) with automatic gating of image acquisition and treatment delivery based on the same phase of the patient\'s respiratory cycle. Compare with amplitude gating. See also respiratory gating.
Industry:Medical devices
The process of controlling a machine, or any of its parts, based on feedback from sensors within the machine. A servo mechanism is designed to make constant corrections based on measured deviations from a calculated trajectory.
Industry:Medical devices
Özel hareket yeteneği üzerinde izleme Ximatron simülatörü hangi elle gantry rotasyon kontrol görüntü intensifier\\'ın Dikey konumu otomatik kontrol ile birleştirilmiştir.
Industry:Medical devices
