1. Sonography

Question 1

The diagnostic ultrasound imaging (sonography) method has two parts: (1) Sending _______ of __________ into the body, and (2) using __________ received from the anatomy to produce a(n) ___________ of that anatomy.

a. packs, sound, information, listing
b. pulses, frequencies, echoes, description
c. ultrasound, scans, power, image
d. pulses, ultrasound, echoes, image

Answer 1

d. pulses, ultrasound, echoes, image

Question 2

Ultrasound gray-scale scans are _______-_________ images of tissue cross-sections and volumes.

a. pulse-echo
b. virtual-anatomic
c. pseudo-gray
d. artificially presented

Answer 2

a. pulse-echo

Question 3

The brightness of an echo, as presented on the display, represents the _____ of the echo.

a. strength
b. location
c. origin
d. frequency

Answer 3

a. strength

Question 4

A linear scan is composed of many _____, _______ scan lines.

a. horizontal, parallel
b. horizontal, curved
c. vertical, parallel
d. vertical, curved

Answer 4

c. vertical, parallel

Question 5

A sector scan is composed of many scan lines with a common _______.

a. length
b. brightness
c. origin
d. direction

Answer 5

c. origin

Question 6

A linear scan has a ______ shape.

a. linear
b. round
c. square
d. rectangular

Answer 6

d. rectangular

Question 7

The shape of a sector scan is similar to a _________ of ________.

a. slice, pie
b. slice, bread
c. scoop, pudding
d. loaf, bread

Answer 7

a. slice, pie

Question 8

A sector scan can have a(n) __________ or a ________ top.

a. angled, straight
b. pointed, curved
c. normal, inverted
d. curved, angled

Answer 8

b. pointed, curved

Question 9

Sonography is accomplished by using a pulse-echo technqiue. The important information gained from this technique includes the _________ from which each echo originated and the _______ of each echo. From this info, the instrument can determine the echo _______ and _________ on the display.

a. location, strength, location, brightness
b. location, frequency, frequency, color
c. anatomy, time, delay, color
d. anatomy, strength, delay, brightness

Answer 9

a. location, strength, location, brightness

Question 10

The _________ is the interface between the patient and the instrument.

a. sonographer
b. Doppler
c. transducer
d. display

Answer 10

c. transducer

Question 11

Transducers generate ultrasound ________ and receive returning ________.

a. pulses, echoes
b. waves, images
c. echoes, pulses
d. images, echoes

Answer 11

a. pulses, echoes

Question 12

Echo information in 3D is presented on ______ displays.

a. TV
b. 2D
c. 3D
d. 4D

Answer 12

b. 2D

Question 13

Acquisition of a 3D echo data volume requires scanning the ultrasound through several tissue __________.

a. angles
b. orientations
c. types
d. cross-sections

Answer 13

d. cross-sections

Question 14

The Doppler effect is a change in echo ________.

a. amplitude
b. intensity
c. impedance
d. frequency
e. arrival time

Answer 14

d. frequency

Question 15

The motion that produces the Doppler effect is that of the _________.

a. transducer
b. sound beam
c. display
d. reflector

Answer 15

d. reflector

Question 16

In medical applications, the flow of ________ is commonly the source of the Doppler effect. Doppler information is applied to __________ for audible evaluation and to ________ for visual analysis.

a. urine, loudspeakers, computers
b. blood, earphones, computers
c. lymph, earphones, displays
d. blood, loudspeakers, displays

Answer 16

d. blood, loudspeakers, displays

Question 17

The visual display of Doppler information can be in the form of a ________-Doppler display or a _______-Doppler display.

a. color, spectral
b. gray-scale, color
c. linear, sector
d. static, temporal

Answer 17

a. color, spectral

Question 18

Color-Doppler displays can present Doppler-______ and Doppler-_______ information in color.

a. frequency, shift
b. frequency, power
c. shift, power
d. bandwidth, shift

Answer 18

c. shift, power