The literature illustrates the important issue of physician adherence to guidelines in their daily practice. In a quantitative study, we asked a random sample of 100 hospital gastroenterologists to evaluate their know...The literature illustrates the important issue of physician adherence to guidelines in their daily practice. In a quantitative study, we asked a random sample of 100 hospital gastroenterologists to evaluate their knowledge of guidelines and awareness of promoters. The degree to which guidelines were considered reliable was not related to the scientific evidence but was significantly associated with the promoter. The French Society of Gastroenterology was considered to be a more reliable promoter than national health agencies and pharmaceutical industries. Gastroenterologists become aware of guidelines mainly through their specialty society (62%). Specialty societies appear to be a more important source of information on guidelines for physicians. National health agencies should involve the specialty societies in the guideline development process to achieve changes in clinical practice.展开更多
Image interpolation of cross-sections is one of the key steps of medical visualization, and the cubic convolution interpolation is usually employed due to its good tradeoff between computational cost and accuracy, how...Image interpolation of cross-sections is one of the key steps of medical visualization, and the cubic convolution interpolation is usually employed due to its good tradeoff between computational cost and accuracy, however, sometimes its accuracy can still not meet the requirement. Aimed at the problem, in this paper, the interpolation principle based cubic convolution is firstly analyzed systematically, and then essential relationship among the different cubic convolution interpolation methods is clarified. Lastly, a novel cross-section interpolation method for medical images that is based on the optimal parameter of sharp control is presented. The method takes full advantage of the local characteristic of medical images, and the optimized sharp control parameter is obtained by the iterative computation, and then the cross-section interpolation is performed by the cubic convolution with the optimized parameter in one time.The experimental results show that the method presented in the paper not only can improve the interpolation accuracy effectively, but also is robust.展开更多
文摘The literature illustrates the important issue of physician adherence to guidelines in their daily practice. In a quantitative study, we asked a random sample of 100 hospital gastroenterologists to evaluate their knowledge of guidelines and awareness of promoters. The degree to which guidelines were considered reliable was not related to the scientific evidence but was significantly associated with the promoter. The French Society of Gastroenterology was considered to be a more reliable promoter than national health agencies and pharmaceutical industries. Gastroenterologists become aware of guidelines mainly through their specialty society (62%). Specialty societies appear to be a more important source of information on guidelines for physicians. National health agencies should involve the specialty societies in the guideline development process to achieve changes in clinical practice.
文摘Image interpolation of cross-sections is one of the key steps of medical visualization, and the cubic convolution interpolation is usually employed due to its good tradeoff between computational cost and accuracy, however, sometimes its accuracy can still not meet the requirement. Aimed at the problem, in this paper, the interpolation principle based cubic convolution is firstly analyzed systematically, and then essential relationship among the different cubic convolution interpolation methods is clarified. Lastly, a novel cross-section interpolation method for medical images that is based on the optimal parameter of sharp control is presented. The method takes full advantage of the local characteristic of medical images, and the optimized sharp control parameter is obtained by the iterative computation, and then the cross-section interpolation is performed by the cubic convolution with the optimized parameter in one time.The experimental results show that the method presented in the paper not only can improve the interpolation accuracy effectively, but also is robust.
