ABSTRACT
Objective:To design a software to read and display CT and RT structure and draw a new contour without treatment planning system (TPS).Methods: In order to display the contour information drawn by doctors, the first step was to match CT images and RT structure then the same screen rendering of CT and RT structures could be applied. In order to add contour in RT structure obtaining the coordinates interactively, connecting coordinate points were the essential steps. Then a unique identity was given in the area of that contour to ensure its unique results. Results: The software successfully read and displayed CT and RT structures and drew a new contour without TPS.Conclusion: In this study, the software establishes a basis to improve the precision of the radiotherapy dose.
ABSTRACT
Objective:A wearable ECG monitoring system is designed. Methods:By biofeedback technology and biofeedback training, a wearable ECG monitoring system with functions of relaxation therapies and action therapies comes true. By technology of RFID-based internet of things, wireless data transmission is obtained. And with MATLAB, the analyses of ECG data at home are attained simply. Results: The system realizes the wearable ECG monitoring. It can promote sufferers’ subjective initiative effectively to make his spontaneous physiologic and mental regulations, and the prevention or healing will be achieved. Conclusion:The wearable ECG monitoring system by technologies of biofeedback and RFID-based internet of things, with strong practicability, can be widely applied.
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Objective:Based on the matrix laboratory (MATLAB) design and implementation of the digital image processing system, to achieve the goal of medical image information. Methods: To use MATLAB software to develop a design and implementation of the medical digital image processing system. Results:This paper presents a kind of digital image processing system based on MATLAB, including all aspects of the image processing. Conclusion:Through the research of medical image processing system, medical imaging for important information can be obtained.
ABSTRACT
BACKGROUND:MATLAB has capabilities of large numerical calculation, mathematical drawing and simple finite element analysis. It can establish models rapidly and can be able to identify the grayscale with BMP and JPG format, and it can directly transform the identified data into ANSYS finite element software-readable format, thus avoiding personal error produced by the repositioning and secondary treatment in the Autocad software. OBJECTIVE:To find a simple, convenient and accurate method to construct the model of lumber fusion and to analyze the biomechanics of lumbar motion segment after lumbar fusion. METHODS:Lamel ar CT and Matlab (Matrix Laboratory) scientific computing software combining Ansys finite element software was used to construct the models of lumber fusion. Then the models were loaded to analyze the biomechanical change of the fusion model. RESULTS AND CONCLUSION:The established models were loaded with axial, bending and stretching loads, and the biomechanical analysis showed that interbody fusion had the best stability among al the fusion models. Combined with joint fusion, the axial displacements of interbody, rear side and rear fusion models were decreased by 5%, 1%and 4%than that of simple interbody fusion, posterolateral fusion and posterior fusion models. Under the stretch-buckling load conditions, the rotation angles were reduced by 23%, 11%and 45%. Stress concentration to the fusion parts showed fusion block could increase the load displacement. The technology of lamel ar CT, Matlab software and Ansys finite element software can accelerate the construction of lumber fusion model and make the model more accurate. Facet joint fusion combined with interbody fusion, posterolateral fusion and posterior fusion can get better lumbar stability, and this increased stability is more significant in the rear fusion. Stress distribution of posterior fusion is more reasonable.