RADT 100 FINAL EXAM
1. Three things helped pave the way to the discovery of x ray:s1. Electricity
2. Vacuums
3. Image Recording Materials
2. who discovered to the concept of electromagnetic induction and how?: -
1831 - Michael Faraday induced electric current by moving a magnet in and out of
a coil
3. Who produced the first radiograph, but wasn't credited for x-ray discovery?-
: William Goodspeed produced a radiograph in 1890
• He was not credited with discovery of X rays
4. Who was credited of disocvering x -rays?: William Roentgen
He became interested in cathode ray experiment with the Crooke's tube
• He worked with this tube until he discovered x rays
5. Tell me about Thomas Edison:: Thomas Edison
• Primary concern was working with
fluoroscopy
• Discovered the use of calcium tungstate over barium platinocyanide
6. Radioactivity: here certain elements spontaneously emit ray or subatomic parti-
cles from matter
7. What 3 were awarded the nobel prize for their work?: Pierre and
Marie Curie, and
Henri Becquerel
,were awarded the Nobel prize for their work
8. Are tubes now capable of producing accurate multiple exposures?: True
9. Improvements in cassettes, film holders, and image receptors have made
them ...: durable and
require less radiation -> make accurate diagnoses.
10. Specialized Areas: Radiation Therapy - not diagnostic
- Therapy involves treating a patient who is already diagnosed with a disease.
Nuclear Medicine radiopharmeceuticals
Sonography - sound waves
Special Procedures - Interventional radiology Mammography - of the breast; used
to detect breast cancer; used to screen large segments of the population
11. Tracers
(think artificially produced; nuc. med): Tracers are a substance that emits radia-
tion
ften called
All of the radioactive compounds (tracers) used in nuclear medicine,
o radionuclides or radiopharmaceuticals, are artificially produced.
, The nuclear medicine technologist might also have to administer radioactive materia
to patients to treat a specific disease.
12. Components of Sonography?: uses high frequency sound waves to form an
image.
Transducer
Ultrasound beam
An image display on a cathode ray tube or television monitor
• Transducer serves two purposes:
- TRANSMITS sound in pulses and bursts
- SENSES the echoes that are returning from the previous pulse
13. Interventional radiology: exams that may improve a patient's condition
• Can help the patient not have to have surgery -
Examples:
• removal of bile ducts or renal stones
• postoperative abscess drainage
• selective cancer therapy
Angiographic studies are performed:
- To demonstrate any vascular Abnormalities
- Demonstrate Pathology in the surrounding tissue and organs
14. Purpose of MRI: To obtain 2D views of an internal organ or str cture,
(especially the brain and spinal cord)
1. Three things helped pave the way to the discovery of x ray:s1. Electricity
2. Vacuums
3. Image Recording Materials
2. who discovered to the concept of electromagnetic induction and how?: -
1831 - Michael Faraday induced electric current by moving a magnet in and out of
a coil
3. Who produced the first radiograph, but wasn't credited for x-ray discovery?-
: William Goodspeed produced a radiograph in 1890
• He was not credited with discovery of X rays
4. Who was credited of disocvering x -rays?: William Roentgen
He became interested in cathode ray experiment with the Crooke's tube
• He worked with this tube until he discovered x rays
5. Tell me about Thomas Edison:: Thomas Edison
• Primary concern was working with
fluoroscopy
• Discovered the use of calcium tungstate over barium platinocyanide
6. Radioactivity: here certain elements spontaneously emit ray or subatomic parti-
cles from matter
7. What 3 were awarded the nobel prize for their work?: Pierre and
Marie Curie, and
Henri Becquerel
,were awarded the Nobel prize for their work
8. Are tubes now capable of producing accurate multiple exposures?: True
9. Improvements in cassettes, film holders, and image receptors have made
them ...: durable and
require less radiation -> make accurate diagnoses.
10. Specialized Areas: Radiation Therapy - not diagnostic
- Therapy involves treating a patient who is already diagnosed with a disease.
Nuclear Medicine radiopharmeceuticals
Sonography - sound waves
Special Procedures - Interventional radiology Mammography - of the breast; used
to detect breast cancer; used to screen large segments of the population
11. Tracers
(think artificially produced; nuc. med): Tracers are a substance that emits radia-
tion
ften called
All of the radioactive compounds (tracers) used in nuclear medicine,
o radionuclides or radiopharmaceuticals, are artificially produced.
, The nuclear medicine technologist might also have to administer radioactive materia
to patients to treat a specific disease.
12. Components of Sonography?: uses high frequency sound waves to form an
image.
Transducer
Ultrasound beam
An image display on a cathode ray tube or television monitor
• Transducer serves two purposes:
- TRANSMITS sound in pulses and bursts
- SENSES the echoes that are returning from the previous pulse
13. Interventional radiology: exams that may improve a patient's condition
• Can help the patient not have to have surgery -
Examples:
• removal of bile ducts or renal stones
• postoperative abscess drainage
• selective cancer therapy
Angiographic studies are performed:
- To demonstrate any vascular Abnormalities
- Demonstrate Pathology in the surrounding tissue and organs
14. Purpose of MRI: To obtain 2D views of an internal organ or str cture,
(especially the brain and spinal cord)
