Variable multi-disease phantom for ultrasonic diagnosis

Abstract

The present application relates to a kind of variable multi-disease analog phantom and method for ultrasonic diagnosis, the phantom includes support shell and bionic tissue module.Support shell inner wall is equipped with equidistant array type partition layer, constitutes independent unit chamber;Bionic tissue module is embedded in unit chamber by shape adaptation structure, and its same chamber module uses serialization layered assembly.Ultrasonic acoustic parameter system of target organ lesion is composed of three core dimensions of echo intensity classification, geometric morphological parameters and spatial distribution characteristics, and different types of lesions show characteristic ultrasonic imaging performance due to the difference of its acoustic characteristics.The phantom uses modular design, bionic tissue module assembly is carried out in unit chamber, and the reproduction of characteristic imaging of target organ lesion is realized.The technical scheme of the present application has multi-lesion type simulation capability and lesion multi-dimensional parameter controllable ability, and can realize target organ lesion imaging simulation and process whole cycle simulation.

Description

Technical Field

[0001] This invention relates to the field of phantoms, and more particularly to a variable multi-disease simulation phantom and method for ultrasound diagnosis, which can be applied to preclinical teaching and research platforms in Taiwan. Background Technology

[0002] Ultrasound medical diagnostic technology, with its core technological advantages, has developed into a core supporting technology of modern clinical diagnosis and treatment systems. Based on its real-time dynamic imaging characteristics, this technology can non-invasively acquire dynamic data on morphological parameter changes and functional states of human tissues and organs, demonstrating unique clinical value in key clinical scenarios such as critical care, interventional procedure navigation, and hemodynamic assessment. Compared to traditional tomographic imaging technology, ultrasound diagnosis places more stringent demands on operators' comprehensive abilities: operators must accurately master the multimodal imaging parameter control mechanisms and simultaneously integrate multimodal cognition in dynamic scanning, including anatomical structure localization, pathological sonographic feature recognition, and diagnostic decision-making. This technological characteristic dictates that ultrasound medical professionals must build a three-dimensional skill system of eye-hand-brain coordinated operation, setting higher standards for operational proficiency and experience accumulation.

[0003] In ultrasound clinical skills training, ultrasound simulation models have irreplaceable teaching value. Their highly biomimetic human tissue structure provides medical personnel with a standardized practice platform, effectively supporting a systematic skills training system for standardized examination techniques, precise probe operation, and image feature analysis.

[0004] Current ultrasound simulation phantoms have significant technical limitations: existing products are mostly limited to the simulation of single organs and lack the technical capability for multi-organ simulation; at the level of pathological characterization, the lesion models of existing phantoms can only present single morphological features and lack the process of disease progression, making it difficult to simulate the disease process. Summary of the Invention

[0005] This invention aims to develop a variable, multi-disease simulation phantom and method for ultrasound diagnosis, overcoming the aforementioned problems of existing phantoms. Based on the acoustic characteristic parameters of the target lesion, this invention simulates diseased tissue by constructing biomimetic tissue modules, achieving simulation of the lesion's echo characteristics, morphological parameters, and spatial distribution characteristics. This phantom realizes multi-organ lesion simulation capabilities and supports the simulation of disease progression, enriching the scenarios and levels of ultrasound diagnostic simulation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multi-disease simulation phantom for ultrasound diagnosis includes a supporting shell (1) and a bionic tissue module (2); the inner wall of the supporting shell (1) is configured with equidistant array modular partitions to form independent unit chambers; the bionic tissue module (2) is embedded in the unit chamber through a morphological adaptation structure.

[0008] The side of the supporting shell (1) is provided with an ultrasonic detection window structure (101).

[0009] The biomimetic tissue module (2) includes a simulated ultrasound anechoic area tissue module (201), a simulated ultrasound hypoechoic area tissue module (202), a simulated ultrasound isoechoic area tissue module (203), and a simulated ultrasound hyperechoic area tissue module (204). The simulated ultrasound anechoic area tissue module (201), simulated ultrasound hypoechoic area tissue module (202), simulated ultrasound isoechoic area tissue module (203), and simulated ultrasound hyperechoic area tissue module (204) are embedded in the unit cavity through a morphological adaptation structure, and achieve sequential layered assembly based on the acoustic characteristics of the lesion.

[0010] Another object of the present invention is to provide a simulation method for a variable multi-disease phantom for ultrasound diagnosis, comprising the following steps:

[0011] a) Extract the acoustic parameter system of the target organ lesion, including echo intensity grading, geometric morphology parameters, and spatial distribution characteristics; select the bionic tissue module (2) according to the echo area type of the lesion. The correspondence between the echo area type and the bionic module selection is as follows: the anechoic area corresponds to the ultrasound anechoic area tissue module (201), the hypoechoic area corresponds to the ultrasound hypoechoic area tissue module (202), the isoechoic area corresponds to the ultrasound isoechoic area tissue module (203), and the hyperechoic area corresponds to the ultrasound hyperechoic area tissue module (204); based on the acoustic characteristics of the target organ lesion, the bionic tissue module (2) is assembled in the unit cavity of the supporting shell (1) using a modular construction design: first, match the corresponding module according to the echo intensity, then reconstruct the anatomical structure through morphological parameter calibration, and finally realize the simulation of ultrasound image characteristics by combining spatial distribution;

[0012] b) Based on the modular structure of biomimetic tissue, the variable design of the model is realized by dynamically adjusting the type ratio, quantity and spatial parameters of the biomimetic tissue modules (2) in the unit cavity of the supporting shell (1);

[0013] c) Based on the three-dimensional ultrasonic acoustic characteristics of the target organ, a three-dimensional volume model is constructed by extending along the direction of sound beam propagation, using the radial near-field sagittal reference plane of the ultrasonic probe as the reference plane, i.e., the plane where the ultrasonic detection window structure (101) is located. Based on the acoustic parameter feature analysis of the multi-plane orthogonal section, the distribution of the bionic tissue module (2) is controlled to finally realize the three-dimensional simulation of the anatomical structure of the target organ.

[0014] The advantages of this invention are: it achieves multidimensional control of target organ lesions; by adjusting the acoustic characteristics, morphological characteristics, and spatial distribution acoustic parameters of the lesions, it can simulate different lesion types, thereby achieving full-cycle process simulation; it adopts a biomimetic tissue modular design to complete the variable design of the phantom structure, realizing the replacement and reconstruction of various lesion morphologies in the ultrasound phantom, breaking through the limitations of fixed lesion structure and single type in traditional phantoms, significantly improving the reusability and functional expandability of ultrasound phantoms, and has good application prospects in the fields of preclinical teaching and training and medical engineering research. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the sequential layered assembly structure of the same-cavity biomimetic tissue module of the present invention under a certain simulated condition;

[0018] Figure 3 A schematic diagram of the assembly of a biomimetic tissue module for a cross-section of the target organ, the heart.

[0019] Figure 4 A schematic diagram of the ultrasound imaging characteristics of the anechoic tissue module (201);

[0020] Figure 5 Schematic diagram of the ultrasound imaging characteristics of the hypoechoic tissue module (202):

[0021] Figure 6 A schematic diagram of the ultrasound imaging characteristics of the isoechoic tissue module (203);

[0022] Figure 7 This is a schematic diagram of the ultrasound imaging characteristics of the tissue module (204) in the high echo zone of ultrasound. Detailed Implementation

[0023] The following description, in conjunction with the accompanying drawings, further illustrates the detailed content of the present invention and its specific embodiments.

[0024] See Figure 1 , Figure 2As shown, this invention discloses a variable multi-disease simulation phantom for ultrasound diagnosis, comprising a supporting shell (1) and a bionic tissue module (2). The inner wall of the supporting shell (1) is configured with equidistant array modular partitions to form independent unit chambers; the bionic tissue module (2) is embedded in the unit chamber through a morphological adaptation structure, and the modules in the same chamber are assembled in a sequential layered manner.

[0025] See Figure 2 As shown, the bionic tissue module (2) includes a bionic ultrasound anechoic area tissue module (201), a bionic ultrasound hypoechoic area tissue module (202), a bionic ultrasound isoechoic area tissue module (203), and a bionic ultrasound hyperechoic area tissue module (204). The bionic tissue modules configured in the same chamber are assembled in a sequential layered manner according to the acoustic characteristic parameters of the lesion.

[0026] See Figures 4 to 7 As shown, the various types of bionic tissue modules (2) have equivalent echo intensity to each echo region of the target organ lesion. Based on the grayscale intensity distribution of the lesion, the spatial domain echo characteristics and geometric morphological parameters, the sonographic features of the target organ lesion are reproduced by assembling the bionic tissue modules (2).

[0027] See Figures 1 to 3 The following diagram illustrates the simulation method of this variable multi-disease phantom:

[0028] a) Extract acoustic parameters of the target organ, including the echo intensity, geometry and spatial distribution of myocardium and blood; match the biomimetic tissue module (2) according to the echo type: myocardial tissue appears as a gray-white low-echo area in the ultrasound imaging section, so the biomimetic low-echo area tissue module (202) should be selected; blood in the heart chamber appears as an anechoic black area, so the biomimetic anechoic area tissue module (201) should be selected. Based on the acoustic characteristics of the target organ lesion, the biomimetic tissue module (2) is assembled in the unit cavity of the supporting shell (1) using a modular construction design: first, match the corresponding module according to the echo intensity, then reconstruct the anatomical structure through morphological parameter calibration, and finally realize the simulation of ultrasound image characteristics by combining spatial distribution.

[0029] b) By adjusting the type ratio, quantity and spatial parameters of the biomimetic tissue modules (2) inside the supporting shell (1) unit cavity, the variable design of the model can be realized.

[0030] c) Based on the three-dimensional ultrasound image data of the heart structure, the three-dimensional structure of the heart can be further constructed. Taking the radial near-field sagittal reference plane of the ultrasound probe as the reference plane, that is, the plane where the ultrasound detection window structure (101) is located, a three-dimensional volume model is constructed by extending along the direction of sound beam propagation. Based on the acoustic parameter feature analysis of multi-plane orthogonal sections, the distribution of the bionic tissue module (2) is controlled to finally realize the three-dimensional simulation of the target organ anatomical structure.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made to the present invention should be included within the scope of protection of the present invention.

Claims

1. A variable multi-disease simulation phantom for ultrasound diagnosis, characterized in that: It includes a supporting shell (1) and a biomimetic tissue module (2); the inner wall of the supporting shell (1) is configured with equidistant array partition layers to form independent unit chambers; the biomimetic tissue module (2) includes a simulated ultrasonic anechoic area tissue module (201), a simulated ultrasonic hypoechoic area tissue module (202), a simulated ultrasonic isoechoic area tissue module (203), and a simulated ultrasonic hyperechoic area tissue module (204); the simulated ultrasonic anechoic area tissue module (201), the simulated ultrasonic hypoechoic area tissue module (202), the simulated ultrasonic isoechoic area tissue module (203), and the simulated ultrasonic hyperechoic area tissue module (204) are all embedded in the unit chambers through a morphological adaptation structure and are assembled in a sequential layered manner.

2. The variable multi-disease simulation phantom for ultrasound diagnosis as described in claim 1, characterized in that: The supporting shell (1) is provided with an ultrasonic detection window structure (101) on its side.

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