Method and device of dynamic PET scanning, and computer apparatus
AssigneeShanghai United Imaging Healthcare Co., Ltd.
InventorShi-Tao Liu
Life of this patent
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Abstract
Disclosed are a method and a device of dynamic PET scanning, and a computer apparatus. The method includes: performing a PET scan on a target region of a scanned object, and acquiring first PET-scan data including a single-event count received by a PET detector (S101); determining a single-event count distribution in the target region according to the first PET-scan data (S102); adjusting a position of a scanning table according to the single-event count distribution (S103); and performing a PET scan on the scanned object according to the adjusted position of the scanning table (S104). The method achieves a dynamic correlation between the position of the scanning table and changes of a tracer within the scanned object, so that more accurate scanned data can be obtained.
Claims19
A method of dynamic PET scanning, comprising:
- performing a PET scan on a target region of a scanned object, and acquiring first PET-scan data, the first PET-scan data comprising a single-event count received by a PET detector;
- determining a single-event count distribution in the target region according to the first PET-scan data;
- adjusting a position of a scanning table according to the single-event count distribution;
- and
- performing a PET scan on the scanned object according to the adjusted position of the scanning table.
A method of dynamic PET scanning, comprising:
- performing a PET scan on a target region of a scanned object, and acquiring first PET-scan data, the first PET-scan data comprising the number of coincidence events received by crystal rings at different time points;
- adjusting a position of a scanning table according to the number of coincidence events;
- and
- performing a PET scan on the scanned object according to the adjusted position of the scanning table;
- wherein the first PET-scan data comprise coincidence counting rates of the crystal rings at different time points;
- each of the coincidence counting rates represents the number of coincidence events received by a single-crystal ring in a PET detector per unit time;
- and
- the adjusting the position of the scanning table according to the number of coincidence events comprises:
- adjusting the position of the scanning table according to the coincidence counting rates.
A device of dynamic PET scanning, comprising:
- a first data acquiring unit, configured to perform a PET scan on a target region of a scanned object, and acquire first PET-scan data, wherein the first PET-scan data comprises a single-event count received by a PET detector;
- a data processing unit, configured to determine a single-event count distribution in the target region according to the first PET-scan data;
- a scanning table adjusting unit, configured to adjust a position of a scanning table according to the single-event count distribution;
- and
- a scan unit, configured to perform a PET scan on the scanned object according to the adjusted position of the scanning table.
Dependencies are inferred from the claim text.