Deck 30: Three-Dimensional Ultrasound

Question 1

The main anatomy shown on this image is a(n) __________.

Answer 1

breast lesion
The image demonstrates a breast lesion on 3D ultrasound.

Question 2

Rendering algorithms include

A) surface and orthogonal modes.
B) minimum and surface modes.
C) both of the above
D) none of the above

Answer 2

C
Rendering algorithms include maximum, minimal, surface, and inversion modes.

Question 3

The inversion mode

A) is a type of rendering.
B) shows hypoechoic structures as solids.
C) a and b
D) none of the above

Answer 3

C
The inversion mode is a type of rendering that shows hypoechoic or anechoic structures as solids, giving the appearance of a cast or a mold.

Question 4

Matrix array transducers contain hundreds of imaging elements. ____

Question 5

Spatiotemporal image correlation (STIC) is most useful for evaluating the

A) neonatal brain.
B) gravid uterus.
C) prostate.
D) fetal heart.

Question 6

The main anatomy shown on this image is a(n) __________.

Question 7

For a multiplanar format, data must be achieved from the

A) original acquisition plane.
B) three orthogonal planes.
C) fourth acquisition plane.
D) none of the above

Question 8

With automatic acquisition the "Region of Interest" box requires the sonographer to

A) move the transducer across the area of interest.
B) keep the transducer stationary.
C) turn the patient so that the area of interest is closest to the transducer.
D) perform an algorithm.

Question 9

The foreign object shown in this figure is a(n) ___________.

Question 10

In this figure, the image shown in surface mode is in the __________ corner.

Question 11

The main anatomy shown on this image is the __________.

Question 12

Matrix array transducers represent advances in volume transducers. ____

Question 13

Three-dimensional ultrasound consists of which three steps?

A) Measurements, volume data set, and minimum mode
B) Measurements, flat screen image, and algorithms
C) Volume acquisition, measurements, and 3D rendering
D) Volume acquisition, multiplanar display, and 3D rendering

Question 14

Applications for three-dimensional (3D) ultrasound include which of the following?

A) Gynecologic procedures
B) Musculoskeletal procedures
C) Neither of the above
D) a and b

Question 15

The SonoVCAD and SonoAVC are volumetric advances that can identify the

A) nongravid uterus and early pregnancy.
B) fetal heart outflow tract and ovarian follicles.
C) neonatal brain in three orthogonal views.
D) adult and pediatric urinary system.

Question 16

The most important step in acquiring 3D ultrasound images is

A) volume acquisition.
B) reconstruction.
C) rendering.
D) movement of the transducer.

Question 17

The acquisition of patient anatomy using 3D is called acquiring

A) a volume data set.
B) a flat screen image.
C) algorithms.
D) measurements.

Question 18

The 4 in 4D ultrasound refers to

A) a special algorithm.
B) space.
C) time.
D) velocity.

Question 19

Volume acquisition can be done by

A) automatic and orthogonal acquisition.
B) orthogonal and 4D acquisition.
C) automatic or manual acquisition.
D) none of the above

Question 20

Four-dimensional imaging can be done only with

A) existing ultrasound systems with a 3D option.
B) 3D systems that use electromagnetic positioning sensors.
C) dedicated 3D transducers.
D) offline systems that attach to the ultrasound transducer.

Question 21

The main anatomy shown on this image is the __________.

Question 22

The main anatomy shown on this image is a(n) __________.

Question 23

The mode used for this image of the liver is the __________.

Question 24

The main anatomy shown on this image is the __________.

Question 25

The main anatomy shown on this image is a(n) __________.

Question 26

What is the difference between Figure A and Figure B? (Hint: One is a recent scan; the other is much older. Can you tell which is which?)

Question 27

Identify the original acquisition plane for this image of the fetal nasal bone. What do the other two planes represent?

Question 28

Compare the difference in the fetal appearance in Figures A and B.

Question 29

The main anatomy shown on this image is the __________.

Question 30

The rendering mode used for this fetal image is the __________?

Question 31

Was this image obtained transabdominally? Why or why not?

Question 32

The mode used for this image is the __________. This mode is best used for showing bony anatomy.