Dual-energy energy spectrum cone beam CT system, control method, reconstruction method and device

• Main Authors: TIAN XINZHI, JIN TIE, QIU LIZHONG
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2019
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The invention discloses a dual-energy energy spectrum cone beam CT system, a control method, a reconstruction method and a device. The dual-energy energy spectrum cone beam CT system comprises: an X-ray generator, a detector and a high voltage generator, wherein the high voltage generator is electrically connected to the X-ray generator, and is used to circularly output high voltage and low voltage in turn according to the set switching frequencies; the X-ray generator is used to emit high energy and low energy x-rays to a subject according to the high voltage and low voltage output by the high voltage generator; the detector, which is arranged to be opposite to the X-ray generator, is used to receive the X-rays passing through the subject, so as to generate high-energy projection data and low-energy projection data corresponding to the high-energy and low-energy X-rays, respectively. The technical scheme of the embodiment of the invention realizes a dual-energy energy spectrum cone beam CT system without the