US-20260123904-A1 - IMAGING SYSTEM AND METHOD, RADIOTHERAPY SYSTEM, AND ELECTRONIC DEVICE

US20260123904A1US 20260123904 A1US20260123904 A1US 20260123904A1US-20260123904-A1

Abstract

Provided is an imaging system. The imaging system of the present disclosure is configured to image a target object, and includes: a radiation source, configured to emit a beam to the target object; a detector, arranged opposite to the radiation source; and a diagnosis and treatment couch, disposed between the radiation source and the detector, fixed relative to the detector, and configured to bear and drive the target object to move. During movement of the diagnosis and treatment couch, the beam emitted by the radiation source always partially or entirely overlaps with a target volume of the target object, and the beam passing through the target volume of the target object is receivable by the detector.

Inventors

Haifeng Liu
Zhongyuan ZHANG
Jiuliang Li
Zhongya WANG
Shenglin ZHANG
Qiuhao Xu

Assignees

OUR UNITED CORPORATION

Dates

Publication Date: 20260507
Application Date: 20251030
Priority Date: 20241101

Claims (18)

1 . An imaging system, configured to image a target object, comprising: a radiation source, configured to emit a beam to the target object; a detector, arranged opposite to the radiation source; and a diagnosis and treatment couch, disposed between the radiation source and the detector, fixed relative to the detector, and configured to bear and drive the target object to move; wherein during movement of the diagnosis and treatment couch, the beam emitted by the radiation source always partially or entirely overlaps with a target volume of the target object, and the beam passing through the target volume of the target object is receivable by the detector.
2 . The imaging system according to claim 1 , wherein a plurality of radiation sources are provided.
3 . The imaging system according to claim 2 , wherein central axes of beams of the plurality of radiation sources intersect at an imaging point.
4 . The imaging system according to claim 2 , wherein angles between central axes of beams of the plurality of radiation sources, and mounting positions, arrangement directions, and an excitation sequence of the plurality of radiation sources are all adjustable.
5 . The imaging system according to claim 2 , wherein the plurality of radiation sources are arranged in a cranio-caudal direction of the target object.
6 . The imaging system according to claim 1 , wherein a straight-line distance between the detector and the radiation source is adjustable.
7 . The imaging system according to claim 1 , wherein the diagnosis and treatment couch comprises a couch board and a couch base, the couch board being fixed on the couch base, wherein a position of the couch board is fixed relative to a position of the detector.
8 . The imaging system according to claim 7 , wherein the detector is disposed on the couch board.
9 . The imaging system according to claim 7 , wherein the couch board and the detector are capable of reciprocating separately along an X axis, a Y axis, and a Z axis in an IEC coordinate system.
10 . The imaging system according to claim 1 , comprising: an imaging control processing device, capable of controlling, based on an imaging mode selected by a user, the imaging system to perform imaging.
11 . The imaging system according to claim 10 , wherein the imaging mode comprises tomography, KV imaging, or CBCT imaging.
12 . The imaging system according to claim 1 , wherein the detector is sized to be able to cover a part, wherein the target volume is located, of the target object.
13 . A radiotherapy system, comprising: an imaging system and a radiotherapy device; wherein the imaging system is configured to image a target object, and the imaging system comprises: a radiation source, configured to emit a beam to the target object; a detector, arranged opposite to the radiation source; and a diagnosis and treatment couch, disposed between the radiation source and the detector, fixed relative to the detector, and configured to bear and drive the target object to move; wherein during movement of the diagnosis and treatment couch, the beam emitted by the radiation source always partially or entirely overlaps with a target volume of the target object, and the beam passing through the target volume of the target object is receivable by the detector.
14 . The radiotherapy system according to claim 13 , wherein an overlapping volume between the beam emitted by the radiation source and the target volume of the target object always partially or entirely overlaps with a treatment volume of the radiotherapy device.
15 . The radiotherapy system according to claim 13 , wherein during movement of the diagnosis and treatment couch from a positioning reference point to a radiotherapy isocenter of the radiotherapy device, the imaging system monitors a position of the target volume of the target object, and an imaging point of the imaging system moves along a connecting line between the positioning reference point and the radiotherapy isocenter; wherein the connecting line between the positioning reference point and the radiotherapy isocenter is parallel to an X axis, a Y axis, or a Z axis in an IEC coordinate system of the radiotherapy device.
16 . An imaging method, applicable to an imaging system, wherein the imaging system is configured to image a target object, and the imaging system comprises: a radiation source, configured to emit a beam to the target object; a detector, arranged opposite to the radiation source; and a diagnosis and treatment couch, disposed between the radiation source and the detector, fixed relative to the detector, and configured to bear and drive the target object to move; wherein during movement of the diagnosis and treatment couch, the beam emitted by the radiation source always partially or entirely overlaps with a target volume of the target object, and the beam passing through the target volume of the target object is receivable by the detector; and the method comprises: adjusting the radiation source, to enable that, during the movement of the diagnosis and treatment couch, the beam emitted by the radiation source always partially or entirely overlaps with the target volume of the target object, and the beam passing through the target volume of the target object is receivable by the detector; and controlling the detector to generate image data.
17 . The imaging method according to claim 16 , wherein a plurality of radiation sources are provided, and adjusting the radiation source comprises at least one of: adjusting a number of the plurality of radiation sources; adjusting mounting positions of the plurality of radiation sources; adjusting arrangement directions of the plurality of radiation sources; adjusting an excitation sequence of the plurality of radiation sources; or adjusting angles between central axes of beams of the plurality of radiation sources.
18 . An electronic device, comprising: a processor; and a memory, configured to store one or more instructions executable by the processor; wherein the processor, when executing the one or more instructions, is caused to perform the imaging method as defined in claim 16 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is based on and claims priority to Chinese Patent Application No. 202411555651.7, filed on Nov. 1, 2024, the disclosure of which is herein incorporated by reference in its entirety. TECHNICAL FIELD The present disclosure relates to the medical field, in particular to the field of target volume imaging technologies, and particularly to an imaging system and method, a radiotherapy system, and an electronic device. BACKGROUND OF THE INVENTION With the rapid development of computer and imaging technologies, image-guided therapy technologies are playing an increasingly important role in improving the accuracy of radiotherapy. These technologies improve the local control rate of tumors and reduce the irradiation dose to surrounding normal tissues, which in turn reduces damage to normal tissues. SUMMARY OF THE INVENTION The present disclosure provides an imaging system and method, a radiotherapy system, and an electronic device. In a first aspect, the present disclosure provides an imaging system. The imaging system is configured to image a target object, and the imaging system includes: a radiation source, configured to emit a beam to the target object;a detector, arranged opposite to the radiation source; anda diagnosis and treatment couch, disposed between the radiation source and the detector, fixed relative to the detector, and configured to bear and drive the target object to move;wherein during movement of the diagnosis and treatment couch, the beam emitted by the radiation source always partially or entirely overlaps with a target volume of the target object, and the beam passing through the target volume of the target object is receivable by the detector. In some embodiments, a plurality of radiation sources are provided. In some embodiments, central axes of the beams of the plurality of radiation sources intersect at an imaging point. In some embodiments, angles between central axes of the beams of the plurality of radiation sources, and mounting positions, arrangement directions, and an excitation sequence of the plurality of radiation sources are all adjustable. In some embodiments, the plurality of radiation sources are arranged in a cranio-caudal direction of the target object. In some embodiments, a straight-line distance between the detector and the radiation source is adjustable. In some embodiments, the diagnosis and treatment couch includes a couch board and a couch base, the couch board being fixed on the couch base, wherein a position of the couch board is fixed relative to a position of the detector. In some embodiments, the detector is disposed on the couch board. In some embodiments, the couch board and the detector are capable of reciprocating separately along an X axis, a Y axis, and a Z axis in an IEC coordinate system. In some embodiments, the imaging system further includes: an imaging control processing device, capable of controlling, based on an imaging mode selected by a user, the imaging system as described above to perform imaging. In some embodiments, the imaging mode includes tomography, KV imaging, or CBCT imaging. In some embodiments, the size of the detector is selectable according to actual situations. In some embodiments, the detector is sized to be able to cover a part, where the target volume is located, of the target object. In a second aspect, the present disclosure provides a radiotherapy system, including: the imaging system as described above; and a radiotherapy device. In some embodiments, an overlapping volume between the beam emitted by the radiation source and the target volume of the target object always partially or entirely overlaps with a treatment volume of the radiotherapy device. In some embodiments, during movement of the diagnosis and treatment couch from a positioning reference point to a radiotherapy isocenter of the radiotherapy device, the imaging system monitors a position of the target volume of the target object, and an imaging point of the imaging system moves along a connecting line between the positioning reference point and the radiotherapy isocenter; wherein the connecting line between the positioning reference point and the radiotherapy isocenter is parallel to an X axis, a Y axis, or a Z axis in an IEC coordinate system of the radiotherapy device. In a third aspect, the present disclosure provides an imaging method, applicable to the imaging system as described above, and the method including: adjusting the radiation source, to enable that, during movement of the diagnosis and treatment couch, the beam emitted by the radiation source always partially or entirely overlaps with a target volume of the target object, and the beam passing through the target volume of the target object is receivable by the detector; and controlling the detector to generate image data. In some embodiments, a plurality of radiation sources are provided, and adjusting the radiation source includes at least one