Zusammenfassung der Ressource
Diagnostic Imaging Technology
- MRI
- How it
works
- The MRI scanner captures the
energy and creates a picture of
the scanned tissues
- Hydrogen atoms naturally exist in the body.
Radio waves redirect the alignment of the
hydrogen atoms in the body and and analyze
the energy different tissues emit when the
hydrogen atoms return to their typical
alignment in the body
- What it
shows
- Organs, soft tissues, bone
- Uses
- Evaluate organs of the
body/abdomen, pelvic organs
(bladder, reproductive organs),
blood vessels, and lymph nodes
- Diagnose and
monitor
treatments
- MRI diagnosing breast cancer
- X-Ray
- How it works
- Creates pictures of the
inside of your body in
different shades of black
and white. Different
tissues absorb different
amounts of radiation
leading to the varying
shades of gray shown on
an x-ray
- Dense areas of the body that don't allow much of the x-rays
to pass through appear white (bones) as opposed to hollow or
air filled places of the body that appear black (lungs)
- What it shows
- Bones, joint spaces, the
heart, (size/shape),
changes in density, and
fluid collection
- Uses
- Checking for broken bones
- Spotting pneumonia
- Looking for cancer
- Monitoring the
progression of a
disease
- Normal foot and hand x-ray
- Bone Scan
- How it works
- A radiotracer that contains a small
amount of radioactive material is inserted
into a vein
- The substance travels through the
blood to the bones and organs
- As the substance wears off it
leaves traces of radiation
- The radiation is detected by a camera that slowly scans the
body
- The camera takes pictures of how much the radiotracer collects in the
bones
- What it
shows
- The various bones of the
skeleton
- Uses
- Find bone cancer or determine if another
cancer has spread to the bone
- Diagnose the cause/location of unexplained bone pain
- Diagnose broken bones not clearly seen on an x-ray
- Find damage to bones
- Bone Scan showing a stress fracture on the right leg
- CT Scam
- How it works
- Combines many x-ray images with the aid
of a computer to generate images that
overlap to show all sections of the body
- A large donut like machine
takes x-ray images at many
different angles around the
body
- What it shows
- Internal organs and structures
- Uses
- Define normal or
abnormal structure in
the bosy
- Assist in procedures by guiding
the placement of instruments
and treatments
- Bacterial pneumonia diagnosed through the abnormal obstruction of the lung