Research And Implementation Of Structured System For Thyroid Ultrasound Report Based On Tree Model

The thyroid gland controls the metabolic activity of the human body and affects the function of each organ of the human body.In recent years,from the statistics of hospitals,the number of patients with thyroid diseases has increased year by year,seriously affecting people's normal life and health.Therefore,there is a global concern about how to treat thyroid disease.In the clinical treatment of thyroid,because the thyroid ultrasound report contains a large number of examination information such as thyroid gland background,nodule description and focal lesions,it has become the main basis for clinical diagnosis of thyroid disease.Based on the results of the examination report,doctors use their medical knowledge and clinical experience to conduct pathological diagnosis of diseases such as benign and malignant thyroid nodules.However,due to the differences in the medical knowledge level and clinical experience of doctors in practice,it may cause misdiagnosis of the disease to a certain extent.In recent years,with the development of artificial intelligence and other technologies,people have tried to use computers to acquire and analyze the contents of inspection reports,and assisting doctors to diagnose has become a research hotspot.Clinically available thyroid ultrasound description texts are mostly stored in unstructured,semi-structured form.Due to the inability to directly access the corresponding medical information,it is difficult to directly use these data in medical statistical analysis and artificial intelligence model construction.Therefore,the structuring of medical examination text reports has become a difficult and primary problem in the field of medical artificial intelligence research.This paper proposes a template tree-based thyroid ultrasound report structuring method.The template tree in this method can be automatically constructed by analyzing the part-of-speech and syntactic relationships in a large number of thyroid ultrasound reports.Then the thyroid ultrasound report is structured by scanning the template tree.The main research contents include the following three points:(1)Construct a part of the dictionary of thyroid ultrasound reportsThe thyroid ultrasound report part of speech dictionary was constructed to provide part-of-speech support in the automatic construction of the template tree and the structuring using the template tree.The part of the lexical dictionary is concise,and the construction process is clear,which can overcome the shortcomings of the cumbersome and time-consuming steps of constructing the general medical dictionary corpus.The method firstly divides the content of the thyroid ultrasound report after data pre-processing into short sentences,and clusters the short sentences after the segmentation,and then the clustering results are identified by short sentence segmentation and named entity,and the training is obtained.Set the organ of the word,position word,attribute name,attribute value and other different part of speech in the report,and establish a part-of-speech dictionary about the thyroid ultrasound report to obtain the part-ofspeech relationship.(2)A structuring method based on template tree for thyroid ultrasound reportThe thyroid ultrasound report for the use of the general medical dictionary corpus structured complex semantic structure is not accurate;the anatomical thyroid ultrasound report results are incomplete using the dependency syntax;the entity identification method is used to structure the thyroid ultrasound report entity repeat,the structural results are not hierarchical.In order to solve these problems,a structuring method based on template tree for thyroid ultrasound report was proposed.The method utilizes a part-of-speech dictionary of thyroid ultrasound report to obtain the part of speech of each word in the thyroid ultrasound report,and performs a dependency syntax analysis on each short sentence in the thyroid ultrasound report to obtain a syntactic relationship of each short sentence;combined with part of speech and syntax Relationship,automatic construction of thyroid ultrasound report structured template tree flow;Finally,template tree was used to achieve structuring of thyroid ultrasound report.Through experiments,the method can achieve a structural accuracy of 90.1%,and the effect is good.(3)Design and implement a thyroid ultrasound report structuring systemIn order to practically apply the proposed method to clinical treatment,this paper uses the MVC design pattern to build the structured system,implements the basic functions of user-uploaded ultrasound reports,management users on the Web side,and the tree that has been generated for the applicable thyroid ultrasound report.The shape model is embedded in the system to implement the model call function;the algorithm for the structured thyroid ultrasound report is invoked to realize the structured result display function of the ultrasound report.