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- W2361517766 abstract "Objective To explore and evaluate the different registration methods between CT and MRI of nasopharyngeal carcinoma. Methods CT and MRI scans of 8 untreated nasopharyngeal carcinoma patients were carried out in treatment position using mask immobilization. All images were transformed and registered at AcQSIM4.9.2 and Pinnacle3~ V 7.0 workstation by two physicians and one physicist respectively, as to the point-marker, interactive, normalized mutual information registration. Two physicians evaluated the results and time of registration with four points based on visual evaluation and three points based on registration time were recorded and assessed as well. The four points were: worst; worse; better; best. The three points were: short time( 1min ); long time(1～3min); and longer time(3min). Results Normalized mutual information registration was the method that the results and times of registration were better than the others. The results of registration were improved by the physicians rather than the physicist, especially the point-marker method. The results of registration were similar between physicians and physicist with interactive, normalized mutual information registration. Conclusion Compared with other methods, normalized mutual information method is adapted to registration during treatment planning. Because it is automatically carried on by software and coefficient, and showing superiority in robust with less subjective effect, it is suggested for the registration of radiotherapeutic planning." @default.
- W2361517766 created "2016-06-24" @default.
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- W2361517766 date "2006-01-01" @default.
- W2361517766 modified "2023-09-23" @default.
- W2361517766 title "Clinical registration between CT and MRI of nasopharyngeal carcinoma" @default.
- W2361517766 hasPublicationYear "2006" @default.
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