發(fā)布時(shí)間：2018-05-30 07:43

  本文選題：心血管支架 + 參數(shù)化造型��； 參考：《西安工業(yè)大學(xué)》2017年碩士論文

【摘要】：當(dāng)前,心血管類疾病已經(jīng)被認(rèn)為是引起人類高死亡率的主要原因之一。由于心臟介入術(shù)具有良好的治療效果,且恢復(fù)周期快,已成為主流的治療心血管疾病的方法。但是,人們對(duì)于心臟介入術(shù)支架的選型方法仍主要借助于二維血管造影和個(gè)人經(jīng)驗(yàn)上,此類選型方法難以保證選型的正確性,更不利于知識(shí)的傳承與尋優(yōu)。因此,基于三維的心臟介入術(shù)支架選型輔助系統(tǒng)的相關(guān)研究就變得尤為重要。本課題基于產(chǎn)生式規(guī)則理論,建立了一種用于輔助醫(yī)生進(jìn)行選型的系統(tǒng)。主要實(shí)現(xiàn)了支架的參數(shù)化造型,支架選型以及三維環(huán)境下血管與支架的坐標(biāo)匹配。以期改善醫(yī)生基于二維血管造影圖選型的局限性,對(duì)臨床上支架選型操作技術(shù)提供支持。選型系統(tǒng)包含角色與權(quán)限控制、三維參數(shù)化模型庫構(gòu)建、輔助支架選型與三維環(huán)境支撐。以Visual C++編程環(huán)境、SQL Server2008數(shù)據(jù)庫以及Open CASCADE幾何內(nèi)核作為主要開發(fā)工具,將各個(gè)模塊進(jìn)行詳細(xì)設(shè)計(jì),完成系統(tǒng)的總體框架設(shè)計(jì)以及功能的實(shí)現(xiàn)。角色與權(quán)限控制模塊可以實(shí)現(xiàn)系統(tǒng)的用戶分級(jí)和支架相關(guān)數(shù)據(jù)的訪問權(quán)限。三維參數(shù)化模型庫構(gòu)建可以輔助醫(yī)生直觀選取各個(gè)參數(shù)的支架模型,并為后續(xù)輔助選型提供參數(shù)和實(shí)體。輔助支架選型模塊以產(chǎn)生式規(guī)則為理論基礎(chǔ),通過事實(shí)庫與規(guī)則庫的建立,實(shí)現(xiàn)支架的輔助選型。整個(gè)系統(tǒng)建立在三維環(huán)境支撐之上,利用坐標(biāo)匹配可以使支架在選定狀態(tài)下通過平移、旋轉(zhuǎn)以及縮放等坐標(biāo)變換操作,根據(jù)確定好的狹窄位置數(shù)據(jù),將支架匹配到血管病變狹窄部位,提供更為直觀的判斷依據(jù)。三維輔助支架選型系統(tǒng)改善了傳統(tǒng)二維血管造影的弊端,更加直觀,也是后續(xù)三維輔助介入術(shù)研究的基礎(chǔ)。
[Abstract]:At present, cardiovascular diseases have been considered as one of the main causes of high mortality. Cardiac interventional therapy has become the mainstream method for cardiovascular disease because of its good therapeutic effect and quick recovery cycle. However, the selection of stent for cardiac interventional surgery is still mainly based on two-dimensional angiography and personal experience. It is difficult to ensure the accuracy of the selection, and it is not conducive to the inheritance and optimization of knowledge. Therefore, the research of three-dimensional stent selection assistant system for cardiac interventional surgery becomes more and more important. Based on the theory of production rules, a system is established to assist doctors to choose their type. The parameterized modeling of the stent, the selection of the stent and the coordinate matching between the blood vessel and the stent in three-dimensional environment are realized. The aim of this paper is to improve the limitation of two-dimensional angiogram selection and to provide support for clinical stent selection. The selection system includes role and authority control, 3D parameterized model base construction, auxiliary support and three-dimensional environment support. Taking the Visual C programming environment and the Open CASCADE geometry kernel as the main development tools, each module is designed in detail, and the overall frame design and the function realization of the system are completed. The role and privilege control module can realize the user grading and the access rights of the data related to the support. The 3D parameterized model library can be used to construct the scaffold model which can help doctors to select each parameter directly, and provide parameters and entities for subsequent auxiliary selection. The auxiliary support selection module is based on the production rule and realizes the auxiliary support selection through the establishment of the fact base and rule base. The whole system is based on 3D environment support, and coordinate matching can make the support operate by translation, rotation and zoom coordinate transformation in the selected state, according to the determined narrow position data. The stents were matched to the stenosed sites of vascular lesions to provide a more intuitive basis for judgment. Three-dimensional assisted stent selection system improves the disadvantages of traditional two-dimensional angiography and is more intuitive, and is also the basis of follow-up three-dimensional assisted interventional surgery.
【學(xué)位授予單位】：西安工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R54;TP311.52

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本文編號(hào)：1954498