A system and method for retrieving similar medical records
A medical record and similarity calculation technology, applied in the field of similar medical record search, can solve the problems of incomplete retrieval, no similarity calculation method, inconvenient expansion of application and promotion, etc.
Inactive Publication Date: 2018-03-30
NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
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Problems solved by technology
[0003] Retrieval of similar medical records is still limited to traditional retrieval methods, using individual field matching to retrieve similar medical records, which leads to incomplete retrieval. There may be many similar medical records, but they cannot be retrieved. Secondly, there is no unified similarity Degree calculation method, resulting in the retrieval of medical records requires human judgment, which makes the experience of the searcher very important, and it is not easy to expand the application and promotion
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Embodiment 1
[0028] 1) Objective: Retrieve the similar medical record set {Hn} of a coronary heart disease medical record H with myocardial ischemia, so as to further statistically analyze the distribution of onset age and gender.
[0029] 2) Pre-establish the full-text index of the feature code dictionary and medical record database.
[0030] 3) Extract the feature code set {Ah}={coronary heart disease: 20, myocardial ischemia: 10} of the medical record H to be retrieved, and the reference score of the medical record H is 30.
[0031] 4) Use {Ah} as a keyword to search the medical records from the full-text index library, and the full-text index of the medical record H1 contains {coronary heart disease, myocardial ischemia}, and the full-text index of the medical record H2 contains {coronary heart disease, infarction} and The full-text index of medical record H3 contains {myocarditis, myocardial ischemia}.
[0032] 5) Calculate the similarity, the similarity of H1 H1￠=30 / 30=1; the simila...
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The invention relates to a similar medical history searching system and method, in particular to a similar medical history searching system and method in statistic searching of electronic medical histories. Original medical histories are provided by a searcher; a similar medical history set is searched from a medical history library; the similarity of each medical history is computed. The method comprises the steps of original medical history feature code extraction, similar medical history searching and similarity computation. According to the similar medical history searching system and method, the similar medical histories are searched and a full-text searching technology and a similar medical history computation method are utilized, so that technological foundation is provided for the further medical history search and analysis.
Description
technical field [0001] The invention relates to a similar medical record retrieval system and method, in particular to a similar medical record search system and method in statistical retrieval of electronic medical records. Background technique [0002] In the current medical record retrieval, the traditional database field full-matching method is still used to retrieve medical records. This method requires the searcher to provide accurate search fields and accurate search content, and requires accurate original data recording, otherwise the expected results cannot be retrieved. set. The statistics of medical records are also carried out through accurate fields, which limits the further research and analysis of medical record data. On the other hand, the full-text search technology is quite mature and can be applied to medical record retrieval. It provides a more convenient and faster retrieval method. The searcher no longer needs to provide a search field or provide accur...
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IPC IPC(8): G06F17/30
CPCG06F16/334
Inventor 胡敏吴俊王鹏蒋永
Owner NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A