Manufacturing method for individual three-dimensional auricle guide plate

Abstract

The invention belongs to the technical field of medical image processing, relates to a manufacturing method for an individual three-dimensional auricle guide plate, and specifically relates to a reverse engineering system from segmentation and reconstruction to auricle guide plate manufacturing, in particular to a manufacturing method for the high-fitness-degree three-dimensional auricle guide plate. Head CT scanning image data of a microtia patient are used as a data source, a median sagittal plane and the guide plate are adopted for positioning, image data of the DICOM format obtained by performing CT scanning on the microtia patient are segmented, extracted and reconstructed on the basis of Mimics software to directly and rapidly generate an affected side auricle and guide plate three-dimensional digital model which is output in an STL file format, and the affected side auricle and guide plate three-dimensional digital model is connected with a 3D printer to manufacture an affected side auricle and guide plate three-dimensional entity model which is used for fine engraving and assembling of cartilage costalis in the auricle reconstruction operation and positioning of an affected side reconstructed ear, and can also be used for prediction of the pre-operation auricle shaping effect. The three-dimensional auricle guide plate entity model is accurate to manufacture, the manufacturing process is easy and rapid, consumed time is short, and the method is convenient to master and beneficial to popularization.

Description

technical field [0001] The invention belongs to the technical field of medical image processing, and relates to a method for preparing a personalized three-dimensional auricle guide plate, in particular to a reverse engineering system from segmentation and reconstruction to the production of an auricle guide plate, and in particular to a personalized three-dimensional auricle with high adaptability The guide plate is suitable for the reconstruction of the auricle of patients with microtia in otology and plastic surgery. Background technique [0002] Microtia is a relatively common birth defect in otology, with an incidence rate of 0.5 / 10000-1 / 10000. At present, the appearance problems of patients with microtia are mainly solved by auricle reconstruction. However, among the surface organs of the human body, the shape of the auricle is the most complex, so auricle reconstruction surgery has always been one of the most challenging subjects in otology and plastic surgery. Due ...

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Problems solved by technology

Although these studies use computer-aided modeling techniques, due to the cumbersome and lengthy operation steps, it is not conducive to general doctors to master and popularize. In addition, due to the existence of individual differences in the specific operation process, these models are difficult to apply in clinical practice.

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