Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| How long after formation of a first tumor cell before a woman can feel a tumor in her breast? |
|
Definition
|
|
Term
| How long does it take for a malignant lesions in the lung to become detectable? |
|
Definition
|
|
Term
|
Definition
| number of times a repetitive event occurs in a specific time period; count humps |
|
|
Term
|
Definition
|
|
Term
|
Definition
| waves are normally expressed in this measurement |
|
|
Term
| How does electromagnetic radiation travel? |
|
Definition
|
|
Term
| What properties do all electromagnetic wave exhibit? |
|
Definition
| wave and particle like properties |
|
|
Term
| what do electromagnetic radiation consist of? |
|
Definition
| photons that carry energy like bags |
|
|
Term
| in the electromagnetic spectrum, as energy level of photons decreases.. |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| ultraviolet cannot pass through |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| pressure waves(sound waves) that only travel through matter, frequency 1-20MHz |
|
|
Term
| true or false: high attenuation coefficient allows a lot to pass through it |
|
Definition
| false, higher the ac the harder it is for things to pass through |
|
|
Term
| beer lambert law measures |
|
Definition
| attenuation of radiation through material |
|
|
Term
|
Definition
| I=Io e^(ux) I intensity, Io initial intensity, u attenuation coefficient, X material thickness, e euler (2.72) |
|
|
Term
|
Definition
| measures velocity and direction, if difference is higher its coming towards - if difference is lower its moving away |
|
|
Term
| electromagnetic radiation travels |
|
Definition
|
|
Term
|
Definition
| discovered dangers of xrays |
|
|
Term
| air attenuation coefficient |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| radiation produced by injecting radionuclides, radionuclides may accumulate faster in some areas (problem) |
|
|
Term
| Computed Axial Tomography (CAT) |
|
Definition
| process of using computers to generate 3d image from flat xray pictures |
|
|
Term
|
Definition
| method of producing images to a translucent screen so they are viewed from the opposite side |
|
|
Term
|
Definition
| method of producing images to a translucent screen so they are viewed from the opposite side |
|
|
Term
| Paul Lauterbur and Peter Mansfield |
|
Definition
| Winners of the Nobel Peace Prize for Physiology |
|
|
Term
|
Definition
| imaging relies on the inherent magnetic properties of hydrogen atoms in water molecules in the body |
|
|
Term
|
Definition
| have magnetic properties called nuclear spin |
|
|
Term
|
Definition
|
|
Term
| true or false: hydrogen molecules cannot be magnetized |
|
Definition
|
|
Term
| how strong is a MRI magnet? |
|
Definition
| 1-3 tesla, 100,000x the magnetization of the earth |
|
|
Term
|
Definition
| exchange of energy between 2 systems at a specific frequency |
|
|
Term
| magnetic resonance corresponds |
|
Definition
| between spins and electromagnetic radiofrequency |
|
|
Term
| electromagnetic radiofrequency |
|
Definition
| RF, produced from radio wave generator |
|
|
Term
|
Definition
| artificially raised attenuation coefficient |
|
|
