HLT 144 CH 20

sonographer

A medical technologist who specializes in ultrasound is a

cause a photographic plate to darken

X-rays can

radiopaque

If a substance absorbs most of the x-rays it is exposed to, it is said to be

bones

Which of the following structures is the most radiopaque?

nuclear medicine

The medical specialty that uses radioactive substances to diagnose and treat disease

in straight lines; scatter

X-rays travel ________ until they hit an object and then _______.

lungs

Which of the following will appear blackest on an x-ray?

radiolucent

If a substance permits passage of most x-rays it is said to be

radiologist

A physician who specializes in diagnostic radionuclide scanning procedures is a

The spontaneous emission of energy in the form of particles or rays coming from the interior of a substance

Radioactivity is

kill cancerous cells

X-rays can

delta particles

Which of the following is not a type of radiation?

radionuclides

_________ emit high-speed particles and energy-containing rays from the interior of their matter as they disintergrate.

echocardiography

Which of the following is an example of sonography?

is very safe for tissues

Sonography

creates charged particles called ions

Ionization is a chemical process that

under the skin

In lymphoscintigraphy, a radiotracer is injected ________ where it will then move into the lymphatic system

the level of thyroid hormone being produced

Thyroid scans can detect all of the following EXCEPT

in the test tube; in the body

In vitro means______ while in vivo means ______.

CT scan

In a _________, x-rays are beamed at a patient’s body from multiple angles and recorded by a computer to create multiple cross-sectional images.

contrast agent

To increase visibility of soft tissues like blood vessels, ________ may be injected to increase their radiopaqueness.

scintigraphy

The process of obtaining an images using a radioisotope is

is radiopaque

Barium sulfate

mammography

_________ uses low-dose x-rays to visualize breast tissue

half life

The time it takes for a radioactive substance to lose half of its radioactivity by disintegration is the

uptake

The rate of absorption of a radiopharmaceutical into an organ or tissue is referred to as

interventional radiology

During __________ a radiologist will perform a procedure while using fluoroscopy to produce a real-time image of what she is doing.

percutaneous transhepatic

During ___________ cholangiography, a needle is inserted through the skin and into the liver to inject contrast.

perfusion study

In _________ study of the lungs, a radiopharmaceutical is given intravenously and then used to image the capillaries of the lung.

radioimmunoassay

An in vitro procedure that combines the use of radioactive chemicals and antibodies to detect hormones or drugs in a patient’s blood.

an initial x-ray is taken without contrast and then used to remove obscuring shadows

During digital subtraction angiography

transducer

Sound waves are created by a

upper GI series

A patient swallows barium sulfate and then radiographs are produced at timed intervals to visualize the esophagus, stomach and duodenum.

hysterosalpingography

During _________ an x-ray image of the fallopian tubes and endometrial cavity is obtained after a contrast is injected.

they utilize magnetic waves instead of radioactive materials

Which of the following is NOT a perk of using digital imaging techniques over traditional film?

Doppler ultrasound

________ records blood flow velocity

soft tissues

Magnetic resonance imaging is best as visualizing

detects areas of high uptake in bone tissue

A radioactive bone scan

sentinel node

The first node to receive lymph drainage from a tumor is the

ventilation study

In _________ study of the lungs, a radiolabeled gas or aerosol is inhaled into the lungs and then used to image the alveoli of the lung.

gadolinium

The contrast agent used most frequently during an MRI is

radiopharmaceutical

A drug or chemical that has been combined with a radionuclide is called a

positron emission tomography

A radionucleotide is intravenously injected and then traced to identify areas of high and low metabolism.

a double-contrast study

A series of radiographs that utilizes both a radiopaque and radiolucent contrast medium is called

myelography

During _________ an x-ray image of the spinal cord is obtained after a contrast is injected.

gamma camera

A ___________ can be used to detect the distribution of radiopharmaceuticals in the body.

sonography

_________ uses high-frequency sound waves that bounce off body tissues and are then recorded to give information about the anatomy of an internal organ.

pyelography

During _________ an x-ray image of the renal pelvis and urinary tract is obtained after a contrast is injected.

angiography

During _________ an x-ray image of the heart and/or blood vessels is obtained after a contrast is injected into the blood stream.

iodine

To visualize blood vessels, _______ is typically used as a contrast agent.

endoscopic retrograde

During ___________ cholangiography, a contrast is injected directly into the bile duct without having to open the abdomen.

areas of cardiac damage

A thallium scan might be performed to identify

cholangiography

During _________ an x-ray image of the bile ducts is obtained after a contrast is injected.

gamma rays

Technetium-99m emits

MRI

_______ uses magnetic fields and radiowaves rather than x-rays

produces more images per rotation than a normal CT scanner

A multidetector CT scanner

UGI

What is the standard abbreviation for:
upper gastrointestinal series

PET-MRI

What is the standard abbreviation for:
positron emission tomographymagnetic resonants imaging

EUS

What is the standard abbreviation for:
endoscopic ultrasonography

SPECT

What is the standard abbreviation for:
single photon emission computed tomography

IVP

What is the standard abbreviation for:
intravenous pyelogram

EBUS-TBNA

What is the standard abbreviation for:
endobronchial ultrasound-guided transbronchial needle aspiration

CXR

What is the standard abbreviation for:
chest x-ray

DSA

What is the standard abbreviation for:
digital subtraction angiography

MUGA

What is the standard abbreviation for:
multiple-gated acquisition

PA

What is the standard abbreviation for:
posteroanterior

LAT

What is the standard abbreviation for:
lateral

AP

What is the standard abbreviation for:
anteroposterior

Ba

What is the standard abbreviation for:
barium

fMRI

What is the standard abbreviation for:
functional MRI

ECHO

What is the standard abbreviation for:
echocardiography

RAIU

What is the standard abbreviation for:
radioactive iodine uptake

PET-CT

What is the standard abbreviation for:
positron emission tomography - computed tomography

C-spine

What is the standard abbreviation for:
cervical spine

EBUS

What is the standard abbreviation for:
endobronchial ultrasound

18F-FDG

What is the standard abbreviation for:
fluorodeoxyglucose

RFA

What is the standard abbreviation for:
radiofrequency ablation

MDCT

What is the standard abbreviation for:
multidetector CT scanner

L-spine

What is the standard abbreviation for:
lumbar spine

Decub

What is the standard abbreviation for:
decubitus

BE

What is the standard abbreviation for:
barium enema

SBFT

What is the standard abbreviation for:
small bowel followthrough

LS films

What is the standard abbreviation for:
lumbosacral films

T-spine

What is the standard abbreviation for:
thoracic spine

US

What is the standard abbreviation for:
ultrasound

Angio

What is the standard abbreviation for:
angiography

Gd

What is the standard abbreviation for:
gadolinium

V/Q scan

What is the standard abbreviation for:
ventilation-perfusion scan of the lungs

DI

What is the standard abbreviation for:
digital imaging

sound

What does son/o mean?

radi/o

What is the combining form that means:
x-rays

record

What does the suffix -gram mean?

obscure

What does -opaque mean?

process of recording

What does -graphy mean?

glass

What does vitr/o mean?

echo-

What is the prefix that means:
repeated sound

to shine

What does -lucent mean?

beyond

What does the prefix ultra- mean?

life

What does viv/o mean?

is/o

What is the combining form that means:
same