The CT analog locator is an analog locator.

Strictly speaking, any imaging equipment capable of analog positioning can be called analog positioning machine, including but not limited to X-ray analog positioning machine (X-sim), CT analog positioning machine (CT-sim), MR analog positioning machine (MR-sim) and even PET-CT/PET-MR analog positioning machine (PET-CT/MR-sim).

As a technician, physicist or doctor in radiotherapy department, simulated scanning mainly refers to simulated positioning scanning. The first point is that its function is to obtain pre-treatment images, simulate positioning and verify position information; The second point is that compared with the treatment state, simulated scanning refers to scanning that is not carried out during treatment.

Extended data:

The function of X-ray simulator is not only to display the position and image of tumor, but also has other functions, such as: simulating and determining the treatment parameters such as gantry, handpiece angle and irradiation range; Shoot the orientation film and verification film of the irradiation field.

Therefore, the mechanical parts of the X-ray simulator, such as the frame and diagnostic table, should be consistent with the treatment equipment in physical and geometric parameters and accuracy. Here, especially the accuracy, is the most concerned issue of radiotherapy department, which can be said to be the key? Point to the core.

Especially the diagnostic bed, which is different from the X-ray equipment in radiology department, the X-ray simulation positioning machine requires very high accuracy for the motion range of the diagnostic bed.

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