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Knowledge: Application status of 3D printing technology based on ultrasonic image in diagnosis and treatment of heart disease
As a link between imaging images and objects, sla sls 3D printing technology has the ability of high simulation and the ability to replicate fine and fine structures. It can be used in the preoperative diagnosis of heart diseases and the formulation of individual surgical schemes. The data source of 3D printing can be obtained by many imaging methods, such as CT,MRI and ultrasound. With the improvement of the resolution of ultrasonic image, the hardware and software equipment are updated constantly, and the data source of 3D printing can be obtained by many imaging methods, such as ultrasonic image resolution, hardware and software, and so on. The 3D printing technology based on ultrasonic image as the data source has been developed gradually. In this paper, the application and prospect of 3D printing technology based on three-dimensional ultrasound image as data source in diagnosis and treatment of heart disease are reviewed.
1.Overview of 3D printing
Sla sls 3D printing technology, also known as rapid prototyping technology or augmentation manufacturing technology, emerged in the early 1990s, is a digital model file based on the application of powder metal or plastic and other moldable materials, The technology of building object model by layer-by-layer superimposition method has high printing precision and can realize individual manufacture. Medical 3D printing began with orthopaedics, organ transplantation and plastic surgery. With the development of individualized cardiac interventional therapy and the continuous improvement of 3D printing technology, In recent years, Lazkani and others have shown certain application prospects in the field of cardiovascular disease. Lazkani et al printed out a 3D model of the heart of a patient with ventricular septal defect after myocardial infarction in order to make the individual cardiac intervention operation safer and more effective. The model can visualize the shape, size, number and peripheral structure of ventricular septal defect (such as pulmonary valve and aortic valve) from left ventricular and right ventricular surface. Clinicians choose the occluder type in advance according to the model. Pre-operative exercise, analysis of surgical methods and approaches, the final success of the operation.
The heart model of 1 functional mitral regurgitation was printed by Dankowsk et al., and the intracardiac anatomy (left atrium, left ventricle, mitral valve leaflet, valve ring, papillary muscle, etc.) can be clearly and clearly displayed through the 3D model. The clinical value of the 3D printing technique in the interventional operation of the structural heart disease was confirmed by determining the lead, the model of the guide wire, the optimal placement position and the surgical approach in the model.
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