Medical Imaging Flashcards
What is a form of electromagnetic radiation that passes through the human body and produces an image of internal structures?
Radiographs (X-rays)
What is the process by which x-rays are removed from a beam through absorption an/or scatter?
Attenuation
What is influenced by the atomic number of the structure?
Ca2+, C, H, O etc.
Absorption
When less photons pass through the structures and appear white on x-ray?
Radio dense/radiopaque
When photons easily pass through structures and appear black on x-ray?
Radiolucent
What combines the use of a digital computer and a rotating x-ray to obtain cross-sectional images or slices of different organs and body parts?
CT Scan
What uses magnetic properties of spinning hydrogen atoms to produce images of tissues?
MRI
What type of MRI demonstrates fat and bone marrow as white?
White matter of brain appears paler
T1 Weighted MRI
What type of MRI shows fluid (like water) as white?
Gray matter of the brain appears paler
T2 Weighted MRI
What CT/MRI orientation views images from inferior (toe) to superior (head)?
Axial Plane
What CT/MRI orientation views images from right to left?
Sagittal Plane
What CT/MRI orientation views images from anterior (front ) to posterior (back)?
Coronal Plane
Barium Enema contrast study
Gastrointestinal Tract
Subtraction Angiography contrast study
Circulatory System
