KR-20260062875-A - DEVICE FOR DISPLAYING ARTERY IMAGE

KR20260062875AKR 20260062875 AKR20260062875 AKR 20260062875AKR-20260062875-A

Abstract

The present invention relates to a device for displaying an artery image, comprising: a receiving unit for receiving a series of artery images based on Optical Coherence Tomography (OCT); an analysis unit for analyzing the received artery images; a lumen boundary derivation unit for deriving a lumen boundary line from the artery images; and a display unit for displaying a cross-sectional image of the artery in a first area within an information display screen based on the analyzed artery images, and displaying the lumen boundary line superimposed on the cross-sectional image.

Inventors

김진수
김태성

Assignees

주식회사 레이와트

Dates

Publication Date: 20260507
Application Date: 20251028
Priority Date: 20241028

Claims (15)

In a device for displaying artery images, A receiver that receives continuous arterial images based on OCT (Optical Coherence Tomography); An analysis unit that analyzes the received artery image above; A luminal boundary derivation unit for deriving a luminal boundary line from the above artery image; and A device comprising: a display unit that displays a cross-sectional image of the artery in a first area within an information display screen based on the analyzed artery image, and displays the lumen boundary line superimposed on the cross-sectional image.
In paragraph 1, The above receiver receives from the user a modification point for modifying the shape of the inner boundary line for a second region including at least a portion of the inner boundary line, and The above display unit changes and displays the inner boundary line included in the second area to correspond to the position of each modification point, and A device in which the above lumen boundary line is updated based on modification points entered by the user.
In paragraph 2, A device in which the above-described display unit displays the inner boundary line by connecting the modification points with lines in the order in which the user inputs the modification points.
In paragraph 1, The above lumen boundary derivation part The above artery image is input into a boundary processing model to derive the above lumen boundary, and The above boundary processing model is a device that is pre-trained to derive features from the artery image to detect the lumen and outer wall of the artery and to derive a lumen boundary line that divides the lumen and outer wall.
In paragraph 1, The above display unit displays a lumen profile image corresponding to the longitudinal direction of the artery in a third area, and displays a lumen depth indicator for manipulating the shooting position of the cross-sectional image on the lumen profile image, and A device in which, when a user operates the lumen depth indicator, the display unit displays a cross-sectional image corresponding to the position of the changed lumen depth indicator in the first area.
In paragraph 5, A device in which the above lumen profile image displays the lumen area, the location of the side branch, and the location of the stent inserted into the artery.
In paragraph 6, The above lumen profile image further displays information regarding the vascular dilation state and vascular adhesion state according to the position of the stent, in the device.
In paragraph 5, A device in which the above-described display portion extends along the longitudinal direction of the artery and displays a plaque bar, in which a plaque area within the artery is displayed, in the third area corresponding to the lumen profile image.
In paragraph 8, A device in which, when the above-described display portion includes the plaque area in the cross-sectional image at a ratio greater than or equal to a preset ratio, the portion of the plaque bar corresponding to the cross-sectional image is displayed to be distinguished from other portions of the plaque bar.
In paragraph 1, A device in which the display portion displays a cross-sectional image of the artery in the longitudinal direction in a part of the first region and displays an angiographic image of the artery in another part of the first region.
In paragraph 1, The above display unit is a device that displays an image of the first area in a user-specified color.
In a device for displaying artery images, A receiver that receives continuous arterial images based on OCT (Optical Coherence Tomography); An analysis unit that analyzes the received artery image; and A device that, based on the analyzed artery image, displays a longitudinal section image of the artery in the longitudinal direction in a fourth area within an information display screen, displays a transverse section image of the artery in the longitudinal direction in a fifth area, displays a cut-view image of the longitudinal section image in a 3D form in a sixth area, and displays a fly-through image of the transverse section image in a 3D form in a seventh area.
In Paragraph 12, The above longitudinal section image includes cross-sectional data cut along the longitudinal axis of the artery, and The above display unit displays a lumen depth indicator for manipulating the shooting position of the cross-sectional image on the above longitudinal section image, and A device comprising the above cross-sectional image containing cross-sectional data for a cross-section of an artery corresponding to the position of the lumen depth indicator.
In Paragraph 13, The above display unit displays an internal angle indicator for manipulating the shooting direction of the cut-view image and the fly-through image on the cross-sectional image, and A device for displaying the cut-view image and the fly-through image, which are rotated to correspond to the rotation angle of the lumen angle indicator at a point corresponding to the position of the lumen depth indicator.
In Paragraph 12, The above cut-view image is generated by continuously arranging the artery images along the longitudinal axis of the artery, and The device, wherein the fly-through image comprises an image of the inside of the artery at a point inside the artery corresponding to the position of the lumen depth indicator, directed in a proximal or distal direction.

Description

Display device based on artery image The present invention relates to a device for displaying arterial images based on OCT (Optical Coherence Tomography). Optical Coherence Tomography (OCT) is a technology that utilizes the phenomenon of light interference to visualize internal tissue structures at high resolution, and it is widely used, particularly in the diagnosis and treatment evaluation of cardiovascular diseases. Cardiovascular diseases are conditions caused by restricted blood flow due to stenosis or occlusion of the heart and blood vessels, which can lead to fatal consequences such as myocardial infarction, angina pectoris, and stroke. For the early detection and treatment of these diseases, it is essential to accurately assess the internal condition of blood vessels and precisely evaluate the location and severity of lesions. OCT can image the detailed structure of the vascular lumen at high resolution, offering higher accuracy than conventional ultrasound or CT-based technologies, and allows for detailed analysis of lesion morphology and plaque characteristics. Particularly in the case of coronary artery disease, OCT provides crucial information for establishing treatment plans, such as stent implantation, by quantitatively evaluating the diameter, area, and plaque distribution of the arterial lumen. Based on cross-sectional images of the blood vessel, OCT can derive lumen boundaries to calculate the degree of stenosis and analyze the thickness and composition of plaque. Furthermore, OCT is used to evaluate the post-stent placement status of the vessel, verifying whether the stent has expanded appropriately and adhered to the arterial wall. This information is important for determining the success of stent therapy and preventing complications such as intrastent thrombosis and restenosis. However, existing OCT-based vascular analysis systems have several technical limitations. First, the accuracy of luminal contour detection can be degraded by factors such as plaque, calcification, or noise. Such false positives or misses make it difficult to accurately evaluate lesions and can lead to errors in the treatment planning process. Second, the process of manually correcting luminal contours is inefficient. The methods used in existing systems make precise correction difficult, making it challenging to guarantee the consistency of correction results. Third, existing technologies often fail to provide sufficient diagnostic information to users because they either fail to provide integrated 2D and 3D images or display only limited information. To improve the accuracy of cardiovascular diagnosis, a system is required that automatically detects lumen boundaries and allows users to intuitively modify them. Additionally, a user interface (UI) is needed that provides integrated 2D and 3D images of arteries to clearly analyze the condition of the lumen, plaque distribution, and the size and location of lesions. In particular, technology is required to quantitatively analyze key vascular features based on OCT data and evaluate the severity of stenosis by deriving indicators such as FFR (Fractional Flow Reserve). FIG. 1 is a configuration diagram of an artery image display device according to one embodiment of the present invention. FIGS. 2 to 5 are drawings illustrating the process of modifying the inner boundary line according to an embodiment of the present invention. FIG. 6 is a flowchart illustrating the process of deriving FFR (Fractional Flow Reserve) from an artery image according to an embodiment of the present invention. FIGS. 7 to 13 are drawings illustrating, in an exemplary manner, the process of deriving FFR (Fractional Flow Reserve) from an artery image according to an embodiment of the present invention. FIG. 14 is a drawing for illustrating a switching switch and a lumen profile image displayed according to an embodiment of the present invention. FIG. 15 is a drawing illustrating a plaque bar shown according to an embodiment of the present invention. FIG. 16 is a drawing for illustrating an internal profile image displayed according to an embodiment of the present invention. FIG. 17 is a drawing for illustrating cross-sectional images and angiographic images displayed according to an embodiment of the present invention. FIG. 18 is a drawing for illustrating cut-view and fly-through images displayed according to an embodiment of the present invention. Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals. Throughout the specification, when a