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DMS 1003 > Final > Flashcards

Final Flashcards

1
Q

What is the angle of reflection

A

angle of incidence at which the sound beam strikes the interface

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2
Q

speed of the ultrasound wave

A

velocity

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3
Q

sequence of events occuring at a regular interval

A

cycle

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4
Q

field farthest from the transducer

A

Fraunhofer zone

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5
Q

hertz (Hz)

A

unit for frequency one cycle per second

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6
Q

kilohertz (kHz)

A

1000 Hz

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7
Q

pulse duration

A

time interval required for generating the transmitted pulse

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8
Q

field closest to the transducer

A

fresnel zone

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9
Q

power

A

rate of energy flow over the entire beam of sound

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10
Q

compression

A

region of increased particle density

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11
Q

special material in the transducer that has the ability to convert electric impulses into sound waves

A

PZT crystals

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12
Q

resolution

A

ability of the transducer to distinguish between two adjacent structures

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13
Q

reduction in amplitude and intensity of a sound wave as it propagates through a medium

A

attenuation

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14
Q

acoustic impedance

A

measure of a material’s resistance to sound

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15
Q

name the regions

A
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16
Q

continuous wave doppler

A

one transducer continuously transmits sound used in high-velocity flow studies

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17
Q

change in frequency of a reflected wave

A

doppler shift

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18
Q

measure of strength of the ultrasound signal

A

gain

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19
Q

sound transmitted and received intermittently

A

pulse wave doppler

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20
Q

normal transmission of sound through soft tissue

A

1540 m/s

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21
Q

What information does color doppler provide

A

blood flow, velocity

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22
Q

When is power doppler used

A

more sensitive low flow

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23
Q

Describe the morrison’s pouch

A

area between R liver lobe and R kidney may contain fluid during trauma or asictes

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24
Q

Label

A
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25
Q

side by side comparison

A

dual image

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26
Q

What supplies blood to the left lobe of the liver

A

left portal vein

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27
Q

What button freezes the image and suspends real time imaging

A

freeze

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28
Q

What is a preset

A

the intended exam

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29
Q

What do TGCs do

A

change echo intensity in different sections

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30
Q

What are the functions of the trackball

A

guide cursor, move through cine loops

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31
Q

What does depth do

A

increase or decrease the image size depending on how deep it is

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32
Q

What does focus do

A

helps with lateral resolution

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33
Q

What is the purpose of overall gain

A

change the echos intensity throughout the image

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34
Q

What is a function of the cine loop

A

review frames

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35
Q

What converts energy from one form to another

A

transducer

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36
Q

What does the Aorta bifurcate into

A

LT and RT common Iliac arteries

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37
Q

Is the Aorta in the midline

A

no, to the left

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38
Q

describe the cyst

A

Anechoic, smooth walls and posterior enhancement

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39
Q

words describing an echo free area

A

anechoic, sonolucent

40
Q

describe the Morison’s pouch

A

a right posterior subhepatic space located anterior to the kidney and inferior to the liver where fluid may accumulate

41
Q

name the abdominal quadrants

A
42
Q

describe the area

A

hypoechoic mass

43
Q

What control determines the amount of energy transmitted to the patient

A

power

44
Q

Where do the portal veins originate from

A

intestinal tract

45
Q

The right renal artery passes ____________ to the inferior vena cava (IVC).

A

posterior

46
Q

The IVC courses anteriorly to enter the:

A

right atrium

47
Q

Which vascular structure is used as a landmark in locating the celiac trunk?

A

SMA

48
Q

Relates to the medial and posterior borders or to the pancreatic body and tail?

A

Splenic vein

49
Q

What is the main lobar fissure

A

Bright linear echo between the right and left lobes

50
Q

describe the portal veins

A

hepatopetal, have more echogenic borders

51
Q

What is the portal triad

A

portal vein, hepatic artery, bile duct

52
Q

What is free fluid in the abdominal called

A

ascites

53
Q

What does hepatofugal mean

A

flow away from the liver

54
Q

Terms for a echo producing structure

A

echogenic, hyperechoic

55
Q

Where do the hepatic veins drain to

A

IVC

56
Q

Another name of the ligamentum teres

A

round ligament

57
Q

What muscles should be used to lift

A

legs

58
Q

Repeated flexion and extension of the wrist may result in

A

carpal tunnel syndrome

59
Q

Which one of the following actions should be done to image the near field of the liver?

A

use curved transducer

60
Q

Another name for the pancreatic duct is

A

duct of wirsung

61
Q

What is a wandering spleen

A

a spleen that has moved from its normal location

62
Q

What defines Splenomegaly

A

a spleen greater than 13cm

63
Q

The most echogenic portion of the kidney is

A

sinus

64
Q

What is the nephron

A

the unit responsible of the functions of the kidney

65
Q

What are LFT’s

A

liver function test

66
Q

Describe the falciform ligament

A

extends from the umbilicus to the diaphragm in a sagittal plane and contains the ligamentum teres

67
Q

What does the ligamentum teres look like sonographically?

A

Triangular, hyperechoic structure

68
Q

The spleen lies between the left hemidiaphragm and the

A

stomach

69
Q

What does the protective capsule cover the spleen with?

A

Peritoneum

70
Q

The major function of the spleen is

A

to filter peripheral blood

71
Q

The right adrenal gland is more _____ to the kidney

A

superior

72
Q

the left adrenal is more _______ to the kidney.

A

medial

73
Q

Where are transplanted kidneys usually placed?

A

in the pelvis along the iliopsoas margin

74
Q

What is this called

A

columns of bertin

75
Q

What is the fat splitting enzyme of the pancreas

A

Lipase

76
Q

When imaging on the sag plane at the level of the liver ,IVC, pancreas and GDA, which of the following enters the LLL?

A

Portal vein

77
Q

What are the 3 pancreas laboratory tests?

A

Amylase, Lipase, Blood Glucose

78
Q

The Gastroduodenal Artery (GDA) lies at the ________________aspect of the pancreas.

A

Anterior/Lateral

79
Q

Which ducts converge to form the CBD?

A

cystic & common hepatic ducts

80
Q

Where does the duct of Wirsung merge with the CBD?

A

ampulla of vater

81
Q

Where is the most common location of an accessory spleen?

A

Splenic hilum

82
Q

what is a cortical bulge that occurs more often on lateral border of the left kidney

A

dromedary Hump

83
Q

What does a junctional parenchymal defect look like?

A

hyperechoic triangle

84
Q

normal measurement for GB wall

A

< 3mm

85
Q

What is an accessory spleen

A

An anomaly of the spleen, homogenic in appearance, found near the hilum

86
Q

Identify the image

A

dromedary hump of the kidney.

87
Q

Identify the image

A

junctional parenchymal defect is a triangular area in the upper pole
of the renal parenchyma.

88
Q

What are fetal lobulations

A

Surfaces of the kidneys are generally indented in
between the calyces, giving the kidneys a slightly
lobulated appearance.

89
Q

Characterized by the deposition of a moderate amount of fat in the renal sinus, with parenchymal atrophy is

A

Sinus Lipomatosis

90
Q

Describe this defect

A

Horseshoe kidney, fusion of the lower poles of the kidney

91
Q

Identify and describe

A

The gallbladder may fold back on itself at the neck, forming
Hartmann’s pouch

92
Q

identify

A

partial septation, complete septation

93
Q

identify

A

folding of the fundus (Phrygian cap)

94
Q

what is a complex cyst

A

Has characteristics of both a cyst and a solid structure.

95
Q

what is shadowing

A

is the reduction in echo amplitude from reflectors that lie behind a strongly reflecting or attenuating structure

96
Q

What is enhancement

A

is the strengthening of echoes from reflectors that lie behind a weakly attenuating structure

97
Q

What are the valves of heister

A

tiny valves found within the cystic duct

DMS 1003 (1 decks)

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