Vascular imaging methods, systems, and mediums
AssigneeShanghai United Imaging Healthcare Co., Ltd.
InventorsCanzhen Ma, Weilong Mao, Huikai Liu, Jun Xiang, Hui Yin, Jianqing Sun
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Abstract
Embodiments of the present disclosure provide vascular imaging methods, systems, and storage mediums. The vascular imaging method may include obtaining imaging data of a target object, the imaging data being obtained through a spiral scanning manner, and generating a vascular angiographic image based on the imaging data.
Claims17
A vascular imaging method performed via digital subtraction angiography (DSA), comprising:
- obtaining target imaging data of a target object including a contrast agent, the target imaging data being obtained through a spiral scanning manner;
- and
- generating a vascular angiographic image based on the target imaging data, wherein
- the vascular imaging method is applied to a DSA device, the DSA device includes an arm, a radiation emitter, and a radiation detector respectively disposed at two ends of the arm, the vascular imaging method further comprising:
- controlling the arm to move along the first direction at a first speed and the radiation emitter to rotate around the first direction at a second speed at the same time;
- and
- obtaining the target imaging data by receiving radiations emitted by the radiation emitter through the radiation detector;
- the generating the vascular angiographic image based on the target imaging data includes:
- determining whether the first speed or the second speed exceeds a speed threshold;
- and
- in response to determining that the first speed or the second speed exceeds the speed threshold, performing an image reconstruction using a limited-angle compensation algorithm to generate the vascular angiographic image.
A vascular imaging system, the vascular imaging system includes an arm, a radiation emitter, and a radiation detector respectively disposed at two ends of the arm, and at least one processor configured to perform operations including:
- obtaining target imaging data of a target object including a contrast agent, the target imaging data being obtained through a spiral scanning manner, including:
- controlling the arm to move from a scan starting point along a first direction and the radiation emitter to rotate around the first direction at the same time;
- controlling the radiation emitter to emit first radiations;
- obtaining first imaging data by receiving the first radiations through the radiation detector;
- controlling the radiation emitter to stop emitting the first radiations and the arm to return to the scan starting point;
- controlling the arm to move from the scan starting point along the second direction and the radiation emitter to rotate around the second direction at the same time;
- controlling the radiation emitter to emit second radiations;
- obtaining second imaging data by receiving the second radiations through the radiation detector, wherein the second rotation is opposite to the first rotation;
- and
- determining the target imaging data based on the first imaging data and the second imaging data;
- and
- generating a vascular angiographic image based on the target imaging data.
A non-transitory computer-readable storage medium comprising executable instructions that, when read by at least one processor, cause the at least one processor to perform a vascular imaging method, the vascular imaging method including:
- obtaining target imaging data of a target object including a contrast agent, the target imaging data being obtained through a spiral scanning manner;
- generating a vascular angiographic image based on the target imaging data;
- wherein the obtaining the target imaging data includes:
- controlling the arm to move from a scan starting point along a first direction and the radiation emitter to rotate around the first direction at the same time;
- controlling the radiation emitter to emit first radiations;
- obtaining first imaging data by receiving the first radiations through the radiation detector;
- controlling the radiation emitter to stop emitting the first radiations and the arm to return to the scan starting point;
- controlling the arm to move from the scan starting point along a second direction and the radiation emitter to rotate around the second direction at the same time;
- controlling the radiation emitter to emit second radiations;
- obtaining second imaging data by receiving the second radiations through the radiation detector, wherein the first direction and the second direction are opposite;
- and
- determining the target imaging data based on the first imaging data and the second imaging data.
Dependencies are inferred from the claim text.