Research And Implement Of The Graphic Platform For Developing The MRI Pulse Sequence

Magnetic resonance imaging (MRI) is one of the most advanced techniques of medicinal imaging diagnosis. It possesses the excellence of non-radiant , non-trauma, provides the image of every direction layer and higher contrast image of parenchyma. Imaging good or bad has a significant relationship with the pulse sequence. Therefore, efficient development of the pulse sequence is important for the MRI system.According to the MRI department of ShenZhen Anke high-tech CO., Ltd needs, I propose and implement a interactive graphic platform for developing the MRI pulse sequence, based on the global variables , the dynamic link and function libraries which offered by Resonance Instruments Ltd.The software system is designed under the object-oriented programming method in Windows2000 platforms, using the powerful tools of MFC Class Library which be offered by Visual C++. The system changes the method of developing pulse sequence from using Pascal language to drawing the time series graph of the signals. The method of developing pulse sequence by using the system is to draw the time series graph of the pulse sequence first, then to set the magnitude and the duration of the signals .At last the Pascal source code is created automatically. As opposed to the old platform, the human-based interface operations , the better visualization and flexible expansibility can be achieved.Six sections are included in this article. The first part briefly introduces the following features of this article: the origin, the significance and the character of the system. In the second part, the basic theory of MRI, some basic concepts and the developing method of the pulse sequence are introduced. The third part introduces the thought, the structure and the demand analysis of the system. The forth part gives the way of realizing the vector drawing function .The fifth part gives the way of realizing the code auto-generation function. The sixth part introduces the debugs , the application of the software ,the conclusion of the topic and a forecast of next step of the research work.