放射医学中级考试复习（Review of secondary examinations for radiology）.docVIP

放射医学中级考试复习（Review of secondary examinations for radiology） Txt37 is a good wine. Sincerity is the fireworks, in the high bloom the more beautiful; Sincerity is the flower, send it to the person, the hand has the aftertaste. Review of secondary examinations for radiology The first chapter X-ray imaging Section I overview Syllabus requirements Familiar with the characteristics of X-ray images, the analysis of the X-ray images and the diagnostic principles of the content and X line, understand the x-line protection. Focus and difficulty The characteristics of X - ray images The X line image is a gray scale image made from black to white grayscale images, which reflect the structure of the human body in terms of density Anatomy and pathology; The X diagram is like the projection of the X ray beam through the different density and thickness of the structure of a particular region, and therefore the overlap image; X-ray images have a certain degree of magnification and/or distortion. Ii. X-ray analysis and diagnosis X line analysis and diagnosis should be followed by principles and procedures: Attention should be paid to the technical conditions of X-ray projection. To observe in a certain order, in a comprehensive and systematic manner; Should also combine clinical, emphasize on one aspect observation. Attention should be paid to distinguish between normal and abnormal, and to be familiar with normal anatomy and aberrant X-ray manifestations. Detection of lesions should be observed from the following aspects: (1) location and distribution of lesions; (2) number of lesions; (3) morphology of the lesion; (4) the edge of the lesion; (5) the density of the lesion; (6) changes in adjacent organs and tissues; (7) changes in organ function. According to the above analysis, the preliminary X-ray diagnosis must be combined with clinical data. There are basically three situations in the diagnosis of the X line: the positive diagnosis; Negative diagnosis and possibility diagnosis.