Theresearchandapplicationofintelligentquestionansweringsysteminthefieldofbreastdiseasesimaging / 实用放射学杂志

Objective Tofacilitatetheradiologiststoinquireinformationrelatedtobreastdiseasesandimprovetheefficiencyand accuracyofsearchingdata.Methods Inthispaper,amultilevelstrategyhybridquestion-and-answermodelwasusedtodesignanautomatic question-and-answersysteminthefieldofbreastdiseasesimaging.Thefirstlayerofthismodelwasthequick matchingofquestion sentencesandFAQknowledgebase.Thesecondlayerwastoobtaintheanswersinthebasicknowledgebaseaccordingtothethresholdsetby processingthequestionsandcalculatingthesimilarityofthequestions.Thethirdlayerwastoacquiretheanswerparagraphfromthe webdocumentreturnedbythefull-textsearchengine.Results Thetestresultsshowedthattheaccuracyofthesystemansweracquisitionreached 85%.Thesystemcouldgivesatisfactoryanswerstotheproblemsexistingintheknowledgebase.Conclusion Theintelligentquestion answeringsystemforbreastdiseaseisconvenientandfast,anditisaneffectivetoolforradiologiststoinquiretheknowledgeofbreast diseases.

Auto recognizing critical values from medical image examination reports by using regular expressions / 实用放射学杂志

Objective To introduce a method of automatically identifying critical values from medical image examination reports and prompt the physician to report it,to prevent the omission of the critical value reporting and improve the medical quality.Methods According to the requirement of critical value reporting system,regular expressions were made for each emergency situation of medical image examination,in order to form a critical value feature library.And an algorithm was designed to find critical value and prompt doctors automatically.Results According to this method,the critical value auto recognize software was developed and had been tested in Nanfang Hospital for 6 months.The software ran well.Conclusion Using regular expressions to define a criteria value feature library and design an algorithm of identifying criteria values,can recognize critical values and prompt physician automatically.

Mobile-terminal-oriented medical image transmission method based on proxy gateway of FHIR / 实用放射学杂志

Objective To present a medical image transmission scheme based on fast healthcare interoperability resources(FHIR) proxy gateway which can enable medical personnel to access the hospital's medical imaging system via the Internet using mobile terminals,and then raise the medical staffs' working efficiency.Methods RESTful WebServices as the interoperability mechanism of image data was used in combination with FHIR image resource model and construct an intermediate gateway to three-tier network architecture,in order to solve the problem of transmitting image data to mobile terminals through gateway via the hospital's network.Results During its half-year trial run,the Internet mobile terminal reading system based on this method ran stably and was in good condition,in the actual hospital environment.Conclusion The gateway method is simple,flexible,and can fully support the mobile terminals' access to the background image data center.

The research and design of medical image file accessing system based on cloud computing / 实用放射学杂志

Objective To resolve the problem of sharing and storing medical images and diagnostic reports among different hospitals and to help primary health care institutions to obtain the technical supports from a major hospital in a large city for the improvement of medical imaging diagnosis.Methods The paper utilizes the existing parallel and distributed technology of cloud computing and the cloud storage virtualization to design a regional image service platform,which provides computing,storage and software services to users.In addition,the design of medical image flie accessing system (MIFAS) further raise the performance of storage and access for medical image.Results The trial results showed that the medical image file accessing system had run in the actual hospital environmental for a few months with stable and good application effect.Conclusion The proposed system can improve the stability and reliability of medical imaging storage,transmission and further improve the level of medical imaging diagnosis in primary health care institutions.

The Theory and Implementation of Transmitting Video Streams of Medical Images at A Narrowband Network / 实用放射学杂志

Objective To evaluate the feasibility of transmitting a high definition video stream of medical images at a narrowband network.Methods The medical images and operation instructions were transmitted in a separate way, and the video streams were reconstructed by executing operations.Results The bidirectional transmitting model and the unidirectional transmitting model were designed. Both of them did well at a narrowband network.Conclusion Transmitting a high definition video stream of medical images at a narrowband network can be done based on the reappearing of operational order.