Anatomical imaging Flashcards
This extremely shortwave electromagnetic radiation moves through the body, exposing a photographic plate to form a…
Radiograph
Bones and radiopaque dyes absorb the rays and create underexposed areas that appear white on the photographic film.
X-ray
To visualize a broken bone or to check for a cavity in a tooth.
X-ray
A major limitation of __ is that they give only flat 2D images of the body.
X-ray
The second oldest imaging technique, was first developed in the early 1950s as an extension of WWII sonar technology
Ultrasound
It uses high-frequency sound waves, which are emitted from a transmitter-receiver placed on the skin over the area to be scanned.
Ultrasound
The sound waves strike internal organs and bounce back to the receiver on the skin.
Ultrasound
This basic technology, the most important advances in the field occurred only after it became possible to analyze the reflected sound waves by computer.
Ultrasound
Once a computer analyzed the pattern of sound waves, the information is transferred to a monitor and visualized as a…
Sonogram image
One of the more advances is the ability of more advanced computer to analyze changes in position through “real-time” movements.
Ultrasound
Among other medical applications, this is commonly used to evaluate the condition of the fetus during pregnancy.
Ultrasound
CT
Computed tomography
Developed in 1972 and originally called computerized axial tomographic (CAT) scans,
CT
A low-intensity x-ray tube is rotated through a 360 degree arc around the patient.
CT
The computer then constructs the image of a “slice” through the body at the point where the x-ray beam was focused and rotated.
CT
