Systems and methods for attenuation correction
AssigneeShanghai United Imaging Healthcare Co., Ltd.
InventorsTiantian LI, Liuchun HE, Zhongzhi LIU, Songsong TANG, Xishan SUN, Hongdi LI
Life of this patent
Estimating the term…
Abstract
A system may be provided. The system comprises an Emission Computed Tomography (ECT) scanner. The ECT scanner may comprise a detector defining an imaging field and photon emission device. The photon emission device may be disposed outside the imaging field and configured to emit photons before and during an ECT scan. At least a portion of the photons may enter the imaging field and strike the detector.
Claims22
A system, comprising an Emission Computed Tomography (ECT) scanner, wherein the ECT scanner comprises:
- a detector defining an imaging field;
- and
- a photon emission device disposed outside the imaging field and configured to emit photons before and during an ECT scan, wherein at least a portion of the photons enter the imaging field and strike the detector.
18-20. (canceled)
A method, the method being implemented on a computing device having at least one storage device and at least one processor, the method comprising:
- obtaining first scan data collected by an Emission Computed Tomography (ECT) scanner in a blank scan without a scanning object in the imaging field, wherein the ECT scanner comprises a detector and a photon emission device, the detector defining an imaging field and collecting scan data, the photon emission device being disposed outside the imaging field and configured to emit photons before and during an ECT scan, wherein at least a portion of the photons enter the imaging field and strike the detector;
- obtaining second scan data collected by the detector in the ECT scan with the scanning object in the imaging field;
- and
- generating an attenuation-corrected ECT image of the scanning object based on the first scan data and the second scan data.
24-35. (canceled)
Dependencies are inferred from the claim text.