Dose based x-ray scanning
AssigneeShenyang Neusoft Medical Systems Co., Ltd.
InventorsShuangxue Li, Ling Pang
Life of this patent
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Abstract
A method and device for X-ray scanning based on dose, comprising: receiving an X-ray dose for scanning set for a region of a subject to be scanned, selecting a scanning and reconstructing technology combination according to said pre-set X-ray dose for scanning wherein the demanded X-ray dose of the selected scanning and reconstructing technology combination satisfies said pre-set X-ray dose for scanning, and scanning said region and implementing a reconstruction accordingly with the selected scanning and reconstructing technology combination to obtain a resultant scanning image.
Claims12
A method for X-ray scanning based on dose, the method comprising:
- receiving a pre-set X-ray dose for scanning which is set for a region of a subject to be scanned, wherein the pre-set X-ray dose for scanning is set via a manual input;
- acquiring a protocol-specified dose for said region to be scanned, wherein the protocol-specified dose for said region to be scanned is pre-stored in a CT scanner system and a scanning image satisfying diagnostic requirements is to be obtained by scanning said region to be scanned with the protocol-specified dose;
- when said pre-set X-ray dose for scanning is less than said protocol-specified dose, selecting one or more scanning technologies, wherein a demanded X-ray dose of the selected scanning technologies is substantially equal to said pre-set X-ray dose for scanning;
- scanning said region with the selected scanning technologies to obtain scanning image data;
- determining a reconstructing technology according to a noise level of the scanning image data and a normal image noise level, wherein the normal image noise level indicates an image noise level obtained by scanning said region with the protocol-specified dose;
- and
- performing the reconstructing technology on the scanning image data so as to obtain a resultant scanning image with a noise level of the resultant scanning image equal to or below the normal image noise level.
A device for X-ray scanning based on dose, the device comprising:
- a processor which invokes machine readable instructions corresponding to a control logic for X-ray scanning based on dose stored on a storage medium and executes the instructions to:
- receive a pre-set X-ray dose for scanning which is set for a region of a subject to be scanned, wherein the pre-set X-ray dose for scanning is set via a manual input;
- acquire a protocol-specified dose for said region to be scanned, wherein the protocol-specified dose for said region to be scanned is pre-stored in a CT scanner system and a scanning image satisfying diagnostic requirements is to be obtained by scanning said region to be scanned with the protocol-specified dose;
- when said pre-set X-ray dose for scanning is less than said protocol-specified dose, select one or more scanning technologies, wherein a demanded X-ray dose of the selected scanning technologies is substantially equal to said pre-set X-ray dose for scanning;
- scan said region with the selected scanning technologies to obtain scanning image data;
- determine a reconstructing technology according to a noise level of the scanning image data and a normal image noise level, wherein the normal image noise level indicates an image noise level obtained by scanning said region with the protocol-specified dose;
- and
- perform the reconstructing technology on the scanning image data so as to obtain a resultant scanning image with a noise level of the resultant scanning image equal to or below the normal image noise level.
Dependencies are inferred from the claim text.