System and method for implementing warm-up scanning in CT device
View Patent ↗A system and a method for implementing warm-up scanning in a CT device are provided. The method includes: closing a slot of a beam limiter before a warm-up scanning process is initiated; implementing the warm-up scanning process to a CT radiation source; and opening the slot of the beam limiter after the warm-up scanning process is finished. The target object may not need to move during the warm-up scanning process. Therefore, a second time scout image scanning is no longer necessary and extra ionization radiation may be avoided.
1. A method for implementing warm-up scanning in a CT device, comprising:
closing a slot of a beam limiter before a warm-up scanning process is initiated;
implementing the warm-up scanning process to a CT radiation source; and
opening the slot of the beam limiter after the warm-up scanning process is finished.
2. The method according to claim 1 , further comprising:
during the warm-up scanning process, initiating a gantry to rotate and controlling the gantry to rotate at a speed which is required in a clinical sequence scanning process to be implemented.
3. The method according to claim 1 , wherein the method further comprises: controlling gates of the beam limiter to overlap.
4. The method according to claim 1 , wherein the slot opened after the warm-up scanning process is finished is a slot required to be open in a sequence scanning process to be implemented.
5. The method according to claim 1 , wherein there are one or more than one beam limiter.
6. The method according to claim 2 , wherein the method further comprises: controlling gates of the beam limiter to overlap.
7. The method according to claim 2 , wherein the slot opened after the warm-up scanning process is finished is a slot required to be open in a clinical sequence scanning process to be implemented.
8. The method according to claim 2 , wherein there are one or more than one beam limiter.
9. A system for implementing warm-up scanning in a CT device, comprising:
a first control device, adapted for closing a slot of a beam limiter before a warm-up scanning process is initiated;
a warm-up scanning device, adapted for implementing the warm-up scanning process to a CT radiation source; and
a second control device, adapted for opening the slot of the beam limiter after the warm-up scanning process is finished.
10. The system according to claim 9 , further comprising:
a rotation speed control unit, adapted for, during the warm-up scanning process, initiating a gantry to rotate and controlling the gantry to rotate at a speed which is required in a clinical sequence scanning process to be implemented.
11. The system according to claim 9 , wherein the first control device comprises:
a first unit for closing the slot of the beam limiter before the warm-up scanning process is initiated; or
a second unit for controlling gates of the beam limiter to overlap before the warm-up scanning process is initiated.
12. The system according to claim 11 , wherein the second control device comprises:
a third unit for opening the slot of the beam limiter after the warm-up scanning process is finished, where the slot is required to be open in a clinical sequence scanning process to be implemented.
13. The system according to claim 9 , wherein there are one or more than one beam limiter.
14. The system according to claim 10 , wherein the first control device comprises:
a first unit for closing the slot of the beam limiter before the warm-up scanning process is initiated; or
a second unit for controlling gates of the beam limiter to overlap before the warm-up scanning process is initiated.
15. The system according to claim 14 , wherein the second control device comprises:
a third unit for opening the slot of the beam limiter after the warm-up scanning process is finished, where the slot is required to be open in a clinical sequence scanning process to be implemented.
16. The system according to claim 10 , wherein there are one or more than one beam limiter.