7.The conditions include body size,tube voltage,tube current,exposure time,pitch,reconstruction algorithm,and so on.
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3.It offers a comprehensive range of imaging services and advanced procedures to diagnose a wide variety of conditions .
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31.Magnetic fields can be produced either by electromagnets or by permanent magnets .
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35.Radio frequency coils produce the excitation of the static magnetic filed and also pick up the emitted signal on decay.
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28.To tilt the gantry forward(+) or backward(-),press the respective buttons on the gantry panel.The tilt range is from -30 to +30 degrees .Zero(0) indicate that the gantry is in the vertical position.
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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.
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37.The powerful magnetic flied of the MR system will attract iron-containing (also known as ferromagnetic) objects.
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43.PET is a noninvasive nuclear imaging technique that involves the administration of positron-emitting radioactive molecule and kinetics of the radioactive material as it moves
into and out of tissues.
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8.Passing though human body ,it can carry important characteristic information of inner structure, due to different features among bone, tissue and muscle.
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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.
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