Principles
_ Complete
of Radiography
Medicaland
Imaging
Radiology
Principles
Study_ Guide.pdf
Complete
of Radiography
Medicaland
Imaging
Radiology
Study_ Guide.pdf
Complete Medical Imaging Study Guide.pdf
Principles of Radiography and
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Principles of Radiography and Radiology
Principles
_ Complete
of Radiography
Medicaland
Imaging
Radiology
Principles
Study_ Guide.pdf
Complete
of Radiography
Medicaland
Imaging
Radiology
Study_ Guide.pdf
Complete Medical Imaging Study Guide.pdf
,Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf
Terms in this set (83)
X-rays are electromagnetic radiation used to create the image.
Who was X-rays discovered by? William Conrad Rontgen in 1895, Nobel Prize won.
What waveform does electromagnetic radiation A sinusoidal waveform - transverse waves (particles moving perpendicular
have? to movement of wave, e.g. sea waves).
J is what? amplitude
λ is what? wavelength
Frequency? no. of wavelengths per second.
Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf
,Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf
Radiographs are images on a display screen (often incorrectly called an 'X-ray'). It is
essentially a shadow picture where X-rays make the image black
Something black on a radiograph means that X-rays have penetrated though the body and have not been stopped
Something white on a radiograph means that X-rays have all been absorbed in the body.
Radiography is the art, act or process of making the radiographic image.
Radiation safety, radiographic equipment and radiographic technique
Radiology is the diagnosis of disease using X-rays (or radioactive material)
This includes normal radiographic anatomy and appearance, radiographic
changes associated with different diseases, and the science of the
technology
Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf
, Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf
A radiograph is what projection? 2-dimensional projection
So what do we have to take to understand three We therefore take a minimum of two views at 90 degrees to each other to
dimensional objects? understand the 3-dimensional objects: these are called ORTHOGONAL
VIEWS
General properties of X-rays No charge and no mass
Invisible and cannot be felt
Travel at speed of light
Travel in straight line
Penetrate all matter to some degree
Cause some substances to fluoresce
Expose photographic emulsio
Ionise atoms
How are the general properties of X-rays relevant to X-rays have a high energy and short wavelength
medical use? They can penetrate materials and cause changes at the atomic level
They can lead to ionisation which results in potentially damaging effects on
living tissue. X-rays (and gamma rays) are referred to as ionising radiation.
Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf Principles of radiography and radiology.pdf