40.A contrast agent calld gadolinium may be injected into a vein to help obtain clearer picture of the area being examined.

26.While it is not necessary that you shut down the system down daily ,you must do so at least once a week ,or as your site deems necessary.Do not shut down wall power during weekly shutdown.

27.The stability of the patient table is not at risk when scanning very heavy patient,but the correct functioning of the table (lift,positioning,precision) cannot be guaranteed 100%.

10.In the X-ray generation device ,X-ray tube is to generate X-ray ,high-voltage generator is to supply filament voltage and tube voltage ,and control unit takes charge of X-ray’s quality ,quality and exposure time.

35.Radio frequency coils produce the excitation of the static magnetic filed and also pick up the emitted signal on decay.

14.Stable output with less noise and ripple can be obtained under all radiographic conditions because a high-frequency inverter is used .

30.For patients with chest and abdomen examination ,breath training is necessary such as according to the instructions or the lights to regularly breath ,to avoid breathing or motion artifacts.

29.After the scan is completed ,you can adjust the window center and width for optimal viewing of the image.

12.Without artificial help,DR can direct transform the X-ray passing through patients into digital images, save and display them in the computer.

31.Magnetic fields can be produced either by electromagnets or by permanent magnets .