50.DICOM is implemented in almost every radiology,cardiology imaging and radiotherapy device X-ray,CT,MRI, ultrasound, ete.and increasingly in devices in other medical domains such as ophthalmology and dentistry.

32.Three types of magnet exist commercially :superconducting electromagnet ,resistive electromagnet and permanent electromagnet.

25.However, for a scanner that dose not have 24/7 cooling , gantry power must be turned off (using the On/Off switch on the control panel ) when cooling is not available.

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

1. Ultrasound and magnetic resonance imaging was added to the list of skills used by radiographers because they are also medical imaging, but these disciplines do not use ionizing radiation or X-rays.

34.Resistive magnets have conventional thick copper windings and generate a great deal of heat.

42.In contrast to radiologic procedures, which determine the presence of disease based on
structural appearance, nuclear medicine studies determine the cause of a medical problem
based on organ or tissue function physiology.

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

18.Automatic control of X-ray tube current is realized by adjusting primary voltage of X-ray tube filament transformer to obtain stable and high quality image.

2.Many diseases in clinical departments are required to achieve the definite diagnosis by the exam of radiology equipment.