[Retracted] Research on Improving Radiotherapy Accuracy Based on Image-Guided Radiotherapy

Table 1

OBI safety and functional test items.

The test items	A detailed description	Results
The door chain	If the shielding door of the accelerator room is not closed, we use the ray tube lock	Cannot send X-rays
Warning lights	All warning lights should be kept on during X-ray transmission	The warning light is on
Warning sound	When X-ray is transmitted, OBI manual control box should sound a warning sound	Warning tone appears
Collision detection and interlocking	In the process of KVS and KVD motion intentional collision, check whether the collision chain appears	Motion stops, warning lights, and warning sounds appear
OBI manual control box button	Release the manual box button during KVS and KVD motion	The movement stops
Injection line preheating	Step on the foot pedal to warm up the tube in perspective mode. The default preset parameters are 75 kV voltage, 50 mA current, and 32 ms exposure time	Executable operation
Functional	Examination data are transmitted from the treatment planning system to the treatment terminal, OBI workstation, and mechanical system	Executable operation