When did Wilhelm Roentgen discover x-rays? - Correct Answers November 8th, 1895
When did Wilhelm Roentgen received the Nobel Prize in Physics? - Correct Answers 1901
What was the first known x-ray image of? - Correct Answers Wilhelm Roentgen wife's hand.
When were the other modalities of imaging (CT, MRI, IR, US, etc) introduced? - Correct Answers 1970's
and on.
What is Radiography? - Correct Answers Is the making of radiographs.
What is Radiography used for? - Correct Answers Uses electromagnetic energy in the form of x-rays to
create medical images.
Requisites to practice Radiography? - Correct Answers Must complete ARRT recognized program and
obtain at least an Associate's degree in Radiography.
What is the exam to become a licensed Registered Technologist (RT)? - Correct Answers ARRT registry
exam
computed tomography (CT) Scanning - Correct Answers formerly called "computed axial tomography"
(CAT) scanning.
How can I work with CT? - Correct Answers Must first become ARRT certified in Radiography, Nuclear
Medicine, or Radiation Therapy. Must complete ARRT recognized educational program and pass registry
examination in CT. RT(CT)
What kind of energy does CT uses? - Correct Answers x-ray energy
, What kind of images does CT produces? - Correct Answers axial images, slice- like sections in the
transverse plane that can be "reconstructed" by the computer to display the anatomic structures in
other planes as well.
The CT scanner consists of: - Correct Answers - A movable table with remote control
- A circular gantry structure that supports the x-ray tube and directors
- An operator console with a monitor and supporting computer system
- Hardware and software to archive and manage data and to produce both electronic and hard copies of
the images.
What does MRI stands for? - Correct Answers magnetic resonance imaging
What is an MRI? - Correct Answers A noninvasive diagnostic modality that does not use ionizing
radiation.
What kind of energy does an MRI uses? - Correct Answers It uses a combination of a powerful magnetic
field and radio frequency (RF) pulses
What does the MRI equipment consists of? - Correct Answers - Patient table
- Gantry
- Console-monitor combination with computer support
- RF coils
What is the Gantry? - Correct Answers - Houses the magnet
- Tubular, 5 to 8 feet long, and surrounds most of the patient's body during the exam.
- Open gantry accommodates large or claustrophobic patients (has less powerful magnetic field and
lower image quality)
What do the RF coils do? - Correct Answers - Generate radio frequency pulses electronically
- Cause of the loud sound typical of MRI scanners