影像技士(国外英文资料).doc

影像技士(国外英文资料) We video technology enter oneself for an examination professional junior technician time is 15th of December to January the following year, the test time is may the following year, 22, test points written and man-machine conversation. Often the subject of the exam has these! Method of allergy test: tongue test, skin test, intravenous trial, conjunctival trial, oral test Advantages of CT: 1. Density resolution; Be able to do quantitative analysis; (3) the direct image of the section; The interference of structures outside of the level Use of contrast agents: cholangiography - cholerine. The digestive tract, barium sulphate. Cardioascular angiography - pneumimide, diiodide glucosamine, methylenose; Ventricle -- air; Urogram - pneumimide; Pyelogram - sodium panoate. Cerebrovascular imaging - pneumide; Herniated angiograms of iodide, iodide; Tubal contrast - iodized oil Common CT and spiral CT: Same thing: the X ray tube is rotating continuously The difference: the spiral CT collects the data in a way that the X-ray tube is rotated from the reciprocating rotation to a continuous rotation scan in one direction. The receiver (examining the bed) moves in one direction at the same time. The advantages of spiral CT: one, improve the scanning speed and reduce the movement pseudo shadow. Second, the volume data of the reconstructed 3d image can be provided because of the thin layer scanning Quality parameters of CT images: 1, contrast and contrast resolution (density resolution) 2, high contrast resolution and low contrast resolution; Iii. Spatial resolution; Four, noise; Five, the uniformity These are the endosacs and exosacs that are the projection fibers The system of the ventricles is the left and right ventricle, the third fourth ventricle, and the midbrain conduit Common hemorrhage of hypertension: basal ganglia The characteristics of the X ray that are applied in clinical application are: penetration, fluorescence, photosensitive action, ionization effect W