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Coronary artery CT imaging method and computer readable storage medium

A coronary artery and CT imaging technology, applied in the field of medical imaging, can solve problems such as artifacts and cannot meet the needs of doctors for diagnosis

Pending Publication Date: 2019-07-05
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the coronary arteries have main trunks such as the right coronary artery (RCA), the left anterior descending branch (LAD) and the left circumflex branch (LCX), they are located at different positions in the heart and have different distances from the myocardium. There are also differences in the degree of synchronization of myocardial motion, so the best phase provided to the user is often only good for some trunks, but not good for other trunks, making the images of other trunks have better Large artifacts cannot meet the diagnostic needs of doctors

Method used

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  • Coronary artery CT imaging method and computer readable storage medium
  • Coronary artery CT imaging method and computer readable storage medium
  • Coronary artery CT imaging method and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] figure 1 Is a flowchart of the coronary artery CT imaging method according to the first embodiment of the present invention, such as figure 1 As shown, the method includes step S12 and step S14. In step S12, a global optimal phase image of the coronary artery is generated and output; in step S16, a local optimal phase image of a specific trunk of the coronary artery is generated and output based on the trunk selection command.

[0023] The aforementioned coronary arteries refer to arterial vessels located in the heart of the human body, and their main trunks may include the right coronary artery (RCA), the left anterior descending artery (LAD), and the left circumflex artery (LCX).

[0024] The above-mentioned global optimal phase image of the coronary arteries refers to the optimal phase of imaging for the entire coronary arteries. This phase may not be a better imaging phase for some of the main trunks; and the localization of the specific main trunk The best phase image r...

Embodiment 2

[0055] Figure 4 It is a flowchart of the coronary CT imaging method provided by the second embodiment of the present invention. Such as Figure 4 As shown, the method includes steps S41, S43, S45, and S47.

[0056] In step S41, image data of the coronary arteries are collected.

[0057] In step S43, the motion index of each main stem of the coronary artery at different phases is acquired based on the collected image data.

[0058] In step S45, the local optimal phase of each backbone is determined based on the motion index of each backbone at different phases.

[0059] In step S47, image reconstruction is performed based on the image data at the local optimal phase of the specific backbone to generate a local optimal phase image for the specific backbone.

[0060] After step S47, the generated local optimal phase image can be further output to the display device for display.

[0061] The content of each step of this embodiment has been described in the first embodiment, and will not ...

Embodiment 3

[0066] The embodiment of the present invention also provides a computer-readable storage medium for storing a computer program. When the computer program is installed in the computer system of the CT imaging system, it is used to perform the coronary CT imaging in the first embodiment above. method.

[0067] Specifically, the computer program can be used to make the computer system execute the following steps:

[0068] Step 1: Generate and output the global optimal phase image of the coronary artery;

[0069] Step 2: Generate and output a local optimal phase image of the specific trunk of the coronary artery based on the trunk selection command.

[0070] Among them, step 1 may include:

[0071] Sub-step 1-1: Collect image data of coronary arteries;

[0072] Sub-step 1-3: Obtain the motion index of each main stem of the coronary artery at different phases based on the collected image data;

[0073] Sub-step 1-5: Obtain the average value of the motion index of the multiple main trunks of t...

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Abstract

Exemplary embodiment of the present invention provides a coronary CT imaging method and a computer readable storage medium. The method comprises the following steps: generating and outputting a globaloptimal phase image of a coronary artery; and generating and outputting a local optimal phase image of a particular trunk coronary artery based on the trunk selection command.

Description

Technical field [0001] The invention relates to the field of medical imaging, in particular to a coronary CT imaging method. Background technique [0002] When performing X-ray CT (Computing Tomography) imaging of the patient's heart, especially the coronary arteries, it involves electrocardiographic gating imaging, which includes imaging in synchronization with the heartbeat. [0003] One method of ECG gated imaging is to collect image data at a specific phase of heart motion and perform image reconstruction. The specific phase can be, for example, the phase corresponding to the diastolic phase of heart motion (75% phase of the average cardiac motion cycle). Place), usually, it is necessary to observe multiple cycles of heart motion and determine the specific phase. However, the heart movement is not completely regular. When the heart rate is inconsistent, the determined specific phase is not necessarily accurate. In this case, it is easy to cause image artifacts. [0004] Further...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03
CPCA61B6/52A61B6/03A61B6/5205A61B6/5288A61B6/5264A61B6/032A61B6/504A61B6/503G06T11/006G06T2211/404G06T2211/461G06T7/20G06T11/005G06T7/0012G06T2211/412G06T2207/10081G06T2207/30101G06T2207/30168G06T2207/30048
Inventor 曹蹊渺方莉李颖
Owner GENERAL ELECTRIC CO
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