Vocab
Energy transmitted by waves through space or through a medium (matter)
Radiation
Uses x-rays to perform diagnostic imaging exams of the cardiovascular system. This modality can also be therapeutic in nature. Iodinated contrast is often used.
Cardiovascular Interventional Technology
CVIT
T/F
X-rays have a positive charge.
False
They are electrically neutral
When were x-rays discovered
November 8th 1895
What is the relationship between frequency and wavelength.
Inversely related
1 cm = ___ mm
10
Capacity to do work
Energy
Specializes in imaging breast tissue using x-rays. Breast cancer statistics indicate one out of every eight or nine women may develop breast cancer. It should be noted that this can affect men as well.
Mammography
T/F
X-rays are homogenous.
They are heterogenous or polyenergetic
Who discovered x-rays
Wilhelm Conrad Roentgen
What is the dual nature of x-rays?
They act like waves and photons
1 angstrom = _________ meters
10-10 meters
The instantaneous production of light resulting from the interaction of some type of energy and some element or compound.
Fluorescence
Radioactive materials are used in this modality. This material is either ingested, injected, or inhaled into the body making the body radioactive. A radiosensitive camera detects the radiation and produces an image.
Nuclear Medicine
T/F
X-rays can produce secondary radiation.
True. We will learn about the photoelectric effect and how a secondary or characteristic photon is produced.
The paper that Roentgen exposed the x-rays to was coated with what material?
Barium platinocyanide.
What is the relationship between a energy and its frequency
1 inch = _____cm
2.54
A small, discrete bundle of energy.
There can be two names.
Photon or Quantum (singular)
This modality is often used to diagnose osteoporosis. This is a gradual loss of calcium and minerals in the bones. It can affect both women and men. A dexa scan is done for this modality.
Bone Densitometry
T/F
X-rays can penetrate the body, be absorbed by the body as well as be scattered by the body.
True on all three!
What body part did Roentgen take of his wife Anna Bertha?
Her hand
If a wavelength decreases, the energy of the photon will ____________
Increase
Convert 10,000 volt to kilovolts
10 kv
Is the number of waves passing a give point per given unit of time is ______________.
Frequency
This modality uses strong magnetic fields and radio waves along with a computer to make its images. This modality is a primary pathway.
MRI Magnetic Resonance Imaging
T/F
X-rays can travel 186,000 miles per minute in a vacuum.
False.
They can travel 186,000 miles per SECOND in a vacuum (The speed of light)
What was the name of the university that Roentgen worked at?
University of Wurzburg
X-rays have a ___________wavelength, ___________ frequency, and have ____________ energy.
short/long , high/low , high/low
short, high, high
Convert 50" to mm
1270 mm