That's So Revealing: The Imaging Technology Quiz!


The imaging technology field has been around for more than a century, and it's progressing fast. What's the oldest use of imaging? What are the newest forms? Take the quiz to see if you can imagine what's developing in imaging technology.

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Question 1 of 20

In what year was X-ray technology developed?


... X-rays, which use electromagnetic radiation to create images of tissue, was by developed by German physicist Wilhelm Rontgen in 1895.


Question 2 of 20

Which of the following is Positron Emission Tomography (PET) primarily used for today?

monitoring degenerative diseases such as muscular dystrophy
studying animals
studying cardiac disease
studying neurotransmitters

... Although PET was originally used primarily to monitor brain sections as they engaged for specific tasks, it is now overwhelmingly used to study brain functions related to neurotransmitters, which are brain chemicals that relay signals between nerve cells.


Question 3 of 20

During pregnancy, transvaginal ultrasound imaging is NOT normally used for which of the following reasons?

to monitor an obese patient
to monitor during the early stages of pregnancy
to monitor during the late stages of pregnancy
to diagnose ectopic pregnancy

... Transvaginal ultrasound technology is normally used only during the first and second trimester. It can provide clearer images of very early pregnancies and pregnancies of overweight mothers. It can identify problems such as ectopic pregnancies and fetal abnormalities.


Question 4 of 20

An EEG (electroencephalogram) measures electrical activity in the brain. It can NOT be used to _________.

diagnose mental illness
evaluate sleep disorders
uncover brain infections
verify brain death

... Although it has numerous brain-related functions, an EEG cannot be used to detect the presence of mental illness.


Question 5 of 20

Repetitive Transcranial Magnetic Stimulation (rTMS) is used as a non-invasive therapy for ________.

coordinating brain hemispheres
Parkinson's disease
all of the above

... rTMS is used clinically to improve motor coordination that has been lost due to imbalances between the brain hemispheres. In addition, it is used experimentally in patients with Parkinson's, dystonia and schizophrenia


Question 6 of 20

What was the first medical use of X-ray technology?

to find a bullet
to help set a broken bone
to locate impacted teeth
to observe a diseased heart

... In 1896, an X-ray was used in Canada to locate a bullet lodged in a patient's leg.


Question 7 of 20

Ultrasound technology was often used in neurology until the 1960s, when it dropped out of favor because ________.

faster technology was developed
it became too expensive
it proved to be inaccurate
it was found to be potentially dangerous to the brain's soft tissue

... Ultrasound works by measuring the elapsed time between an ultrasonic pulse and its echo within the body. For neurological uses, the skull was found to interfere with the sound waves, making results inaccurate. Ultrasound instead became very valuable in obstetrics and gynecology.


Question 8 of 20

The first attempt at using magnetic resonance imaging (MRI) was unsuccessful because _______.

the subject had a steel rod in his leg
the subject moved around too much
the subject panicked and tried to escape
the subject was too large

... Dr. Raymond Damadian, developer of the MRI, was the first test subject. He proved to be too large to be imaged in the machine. A much smaller graduate student was the first successful MRI subject in 1977.


Question 9 of 20

Computer Assisted Tomography (CT), developed in the 1970s, is an upgrade over earlier X-ray technology because __________.

images are three-dimensional
it does not use any radiation
it is more comfortable for the patient
it is much less expensive

... A CT scan produces three-dimensional images of bone, soft tissue and air in the body. It was such an advance that its developers won the 1979 Nobel Prize for Medicine or Physiology.


Question 10 of 20

The Department of Homeland Security is funding a private corporation to develop X-ray imaging based on the vision of the ________.


... The Lobster Eye X-ray Imaging Device (LEXID) is modeled after the eye of the lobster, which works through reflection, not refraction. It is much more efficient than traditional X-rays and can even perform imaging through concrete, wood and steel.


Question 11 of 20

Open MRI technology was developed to help patients who are oversized or _________.

have metal implants, clips, pins, etc.
whose movements cannot be restricted
all of the above

... An open MRI allows more space around the patient. It is far less restrictive and much more comfortable, especially for patients who are large or claustrophobic.


Question 12 of 20

Law enforcement personnel can use thermal imaging when investigating automobile accidents to _______.

determine the order of impact
judge who's at fault
locate evidence of rapid braking
model the incident

... Many modern cars having anti-lock brakes, so skid marks are not left at accident scenes. But the friction between tires and road due to braking can be thermally imaged for about 30 minutes after an accident.


Question 13 of 20

Angiography is used in conjunction with which imaging technology?


... During an angiography, dye is injected into a blood vessel to help X-rays uncover a blockage or narrowing of arteries.


Question 14 of 20

What is the storage policy for a passenger's image that has raised suspicions after being created by the Transportation Security Administration's (TSA) Backscatter unit?

It is immediately erased.
It is deleted after any irregularities are investigated.
It is kept for future comparisons.
The decision is made on a case-by-case basis.

... Backscatter technology allows a TSA screener to view a chalk-like image of each person. If anything incongruous appears, that passenger receives further review. The image is then erased.


Question 15 of 20

The ballistic imaging technology used by law enforcement personnel is ______ DNA technology.

as accurate as
less accurate than
more accurate than

... Ballistic imaging technology is less accurate than both DNA and fingerprint-matching technologies.


Question 16 of 20

When looking for a missing person in an open area, thermal imaging can help police search about _______ feet/kilometers in any direction.

3,000 feet (4,828 kilometers)
1,500 feet (2,414 kilometers)
750 feet (1,207 kilometers)
250 feet (402 kilometers)

... Police often use thermal imaging to search for children or seniors who have wandered away from their homes. Images can be detected up to 1,500 feet (2,414 kilometers) away.


Question 17 of 20

Laser Doppler Ultrasound is used to measure _________.

blood flow
heart rate
electrical impulses in the brain
eye movement

... Laser Doppler Ultrasound measures changes to blood flow in the arteries, which helps doctors who are treating patients with head traumas, in comas and in intensive care.


Question 18 of 20

Deep brain stimulation (DBS) electrical imaging is being used experimentally for patients with epilepsy to _________.

control seizures without medication
destroy areas of the brain causing seizures
identify brain areas associated with seizures
work in conjunction with medication to control seizures

... Researchers use DBS on patients with epilepsy who will be undergoing surgery to control seizures. The imaging is used to identify the parts of the brain involved in the seizures so uninvolved areas are not affected by the surgery.


Question 19 of 20

In 2010, at the University of Virginia Medical Center, radiation therapy was used in conjunction with MRI to attack a tumor causing _______.

accelerated aging
continual brain seizures
excessive height
Tourette's syndrome

... The tallest man in the world (according to the Guinness Book of World Records) underwent radiation therapy that stopped his growth at 8 feet, 3 inches (2.51 meters).


Question 20 of 20

One type of imaging technology used by the TSA is the millimeter wave unit, which uses ________.

radioactive isotopes
ultrasound technology
X-ray technology

... The millimeter wave unit bounces electromagnetic waves off a passenger within an imaging portal, and a generic figure appears to the TSA official.


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