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utz > UTZ:BUFF > Flashcards

UTZ:BUFF Flashcards

1
Q

VELOCITY OF UTZ IN SOFT TISSUE

A

1540 M/S

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2
Q

PIEZO MEANS ____

A

PRESSURE

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3
Q

AS FREQUENCY INCREASES, PENETRATION WILL, ____

A

DECREASE

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4
Q

AXIAL RESOLUTION IS (2)

A
  1. ABILITY TO DISTINGUISH 2 OBJECTS // TO THE UTZ BEAM
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5
Q

AXIAL RESOLUTION (2)

A
  1. SAME AS DEPTH, LONGITUDINAL AND RANGE RESOLUTION
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6
Q

IF FREQUENCY INCREASES, WAVELENGTH WILL ___

A

DECREASE

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7
Q

PROGRESSIVE WEAKENING OF THE UTZ BEAM AS IT TRAVELS

A

ATTENUATION

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8
Q

WAVELENGTH IS A MEASURE OF ____

A

DISTANCE

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9
Q

ATTENUATION CAN OCCUR BY: ___

A

DIVERGENCE, SCATTERING, REFLECTION, REFRACTION, ABSORPTION

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10
Q

___ HAS THE PROPAGATION SPEED CLOSEST TO THE AVERAGE SOFT TISSUE

A

MUSCLE

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11
Q

ARRANGE THE MEDIUM IN TERMS OF PROPAGATION VELOCITY. FROM LOWEST TO HIGHEST

A

AIR, FAT, MUSCLE, BONE

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12
Q

HIGHER ACOUSTIC IMPEDANCE COEFFICIENT B/N THESE THREE: SOLID, LIQUID, GAS

A

SOLID

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13
Q

PRODUCTION AND BEHAVIOUR OF GAS BUBBLES

A

CAVITATION

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14
Q

ABSORPTION REFERS TO ___

A

CONVERSION OF SOUND TO HEAT

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15
Q

RECOMMENDED FOR STERILIZING THE TRANSDUCER

A

ETHYLENE DIOXIDE

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16
Q

EXAMPLE OF ACOUSTIC WINDOW

A

LIVER INTERFACE

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17
Q

CAN’T BE DISTINGUISHED IN UTZ

A

INDIVIDUAL CELLS

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18
Q

REFRACTION OCCURS DUE TO DIFFERENCE IN __ ACROSS AN INTERFACE B/N 2 MATERIALS

A

DENSITY

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19
Q

REFERENCE MARKER CORRESPONDS TO THE

A

CRANIAL AND RIGHT

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20
Q

SAGITTAL : PROBE MARKER POINTS

A

CRANIALLY

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21
Q

MEDICAL IMAGING TECHNIQUE THAT USES HIGH FREQUENCY SOUND WAVES AND THEIR ECHOES

A

ULTRASONOGRAPHY

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22
Q

ECHOLOCATION METHOD

A

SONAR (SOUND NAVIGATION AND RANGING)

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23
Q

A RECENT ADVANCEMENT IN ELECTRONICS AND COMPUTING POWER IN ULTRASONOGRAPHY W/C SHOWS GREATER DETAIL SUCH AS PERSPECTIVE

A

5D

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24
Q

SPATIAL PULSE LENGTH (SPL) DETERMINES

A

PENETRATION DEPTH

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25
Q

AXIAL RESOLUTION DEPENDS UPON THE ___

A

WAVELENGTH

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26
Q

LATERAL RESOLUTION DEPENDS UPON __

A

BEAM DIAMETER

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27
Q

THE BEAM OF AN UNFOCUSED TRANSDUCER DIVERGES

A

IN THE FRAUNHOFER ZONE

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28
Q

RESULT OF 2 OR MORE REFLECTING SURFACES

A

REVERBERATION

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29
Q

DOPPLER APPLICATION: 4

A
  1. CAN PRODUCE AUDIBLE SOUND
  2. DOPPLER INSTRUMENTS CAN EMPLOY BOTH PULSED AND CONTINUOUS WAVE
  3. DOPPLER CAN DISPLAY AN IMAGE
  4. COLOR DOPPLER POSSIBLE
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30
Q

RANGE OF FREQUENCIES CONTAINED IN AN UTZ PULZE IS CALLED __

A

BANDWIDTH

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31
Q

GREATEST DOPPLER SHIFT IS ACHIEVED ___.

A

WHEN THE BEAM STRIKES A VESSEL AT SHARP ANGLE

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32
Q

IT REFERS TO THE DEGREE OF AMPLIFICATION APPLIED TO ALL RETURNING SIGNALS

A

GAIN CONTROL

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33
Q

ABILITY OF AN IMAGING SYSTEM TO DETECT WEAK REFLECTION IS

A

SENSITIVITY

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34
Q

A TERM of NO SIGNAL OR REFLECTION DETECTED IN UTZ

A

ANECHOIC

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35
Q

TYPE OF THE TRANSDUCER COMMONLY USED IN UTZ

A

CONVEX

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36
Q

ARTIFACTS APPEARING AS //, EQUALLY SPACED LINES CHARACTERISTICS OF ___

A

REVERBERATION

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37
Q

THE AMOUNT OF DISPERSION IN THE FAR FIELD CAN BE DECREASED BY __

A

USING LARGE DIAMETER TRANSDUCER

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38
Q

LONGITUDINAL OR AXIAL RESOLUTION DIRECTLY DEPENDENT ON __

A

SPL (SPATIAL PULSE LENGTH)

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39
Q

MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4

A
  1. CORK
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40
Q

MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4

A
  1. RUBBER
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41
Q

MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4

A
  1. EPOXY RESIN
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42
Q

MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4

A
  1. ARALDITE LOADED W/ TUNGSTEN POWDER INSIDE
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43
Q

DAMPING MATERIAL FUNCTION: 3

A
  1. REDUCE PULSE DURATION
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44
Q

DAMPING MATERIAL FUNCTION: 3

A
  1. IMPROVE AXIAL RESOLUTION
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45
Q

DAMPING MATERIAL FUNCTION: 3

A
  1. REDUCE SPL (SPATIAL PULSE LENGTH)
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46
Q

HIGHER FREQUENCY ENABLES HIGHER RESOLUTION BUT _

A

REDUCED PENETRATION DEPTH

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47
Q

WHEN SOUND WAVES OF THE BOUNDARY SURFACE B/N 2 MEDIA W/ DIFFERENT DENSITIES, PART OF THE BREAM RETURNS TO TRANSDUCER, WHAT INTERACTION WILL OCCUR?

A

REFRACTION

48
Q

LOOSING OF THE UTZ BEAM ENERGY AS IT PASS THROUGH THE STRUCTURES OF THE BODY

A

ATTENUATION

49
Q

TECHNIQUE THAT CAN BE USED TO EVALUATE PRESENCE OF FLOW AND DIRECTION IN A BLOOD VESSEL

A

DOPPLER

50
Q

SOUND FREQUENCY INCREASES W/ __

A

POSITIVE DOPPLER SHIFT

51
Q

____ CAUSED BY 2 PHENOMENA, TOTAL REFLECTION, OR ABSORPTION

A

REVERBERATION

52
Q

A PHENOMENA OCCUR WHEN SOUND WAVES MOVE THRU AN ANECHOGENIC STRUCTURE (I.E CYST)

A

ACOUSTIC ENHANCEMENT

53
Q

FULL BLADDER PREP FOR ___

A

PELVIS

54
Q

EMPTY BLADDER FOR

A

TRANSVAGINAL AND TRANSRECTAL

55
Q

FOR FULL BLADDER EXAMS, HOW MUCH FLUID INTAKE

A

32 OZ (150-600 CC)

56
Q

STRUCTURES APPEAR WHITE ON SCREEN

A

HYPERECHOIC

57
Q

2 TISSUES W/ SAME AMNT OF ECHOGENICITY

A

ISOECHOIC

58
Q

HIGH FREQUENCY = ___

A

BETTER RESOLUTION

59
Q

GIVES RECTANGULAR IMAGE

A

LINEAR ARRAY

60
Q

GOOD FOR SMALL PARTS AND FOR GAUGING DEPTH

A

LINEAR ARRAY

61
Q

GIVES MORE ONE-DIMENSIONAL VIEW

A

LINEAR ARRAY

62
Q

USES SAME LINEAR ORIENTATION BUT ARRANGED ON A CURVED SURFACE

A

CURVILINEAR

63
Q

GENERALLY LOWER FREQUENCY

A

CURVILINEAR

64
Q

GIVES A WIDER ANGLE OF VIEW

A

CURVILINEAR

65
Q

A SUBSTANCE THAT REMOVES FRICTION B/N THE PX AND THE TRANSDUCER

A

ULTRASOUND GEL

66
Q

IT IS THE NARROWEST PORTION OF AN UTZ BEAM

A

FOCAL ZONE

67
Q

PX FOR TVS (TRANSVAGINAL SONOGRAPHY) SHOULD BE PLACED IN WHAT POSITION?

A

LITHOTOMY (STIRRUP)

68
Q

IN ORDER TO DEMO GB IN AN ADULT PX, HOW MANY HRS. OF FASTING SHOULD BE DONE

A

4-6 HRS

69
Q

ANECHOIC

A

NORMAL GB

70
Q

WALL THICKNESS <3 CM

A

NORMAL GB

71
Q

TRANSVERSE DIAMETER <4 CM

A

NORMAL GB

72
Q

MAY SEE FOLDS/ VALVES W/IN THE GB

A

NORMAL GB

73
Q

ABDUCTING THE SCANNING ARM TO THE LEAST DEGREE OF ANGLE POSSIBLE

A

WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)

74
Q

USING A HEIGHT ADJUSTABLE CHAIR

A

WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)

75
Q

USING SEPARATE MONITOR FOR THE SONOGRAPHER AND THE PX

A

WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)

76
Q

TAKING SHORT BUT FREQUENT BREAKS FROM SCANNING

A

WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)

77
Q

AS INCREASE IN REFLECTION AMPLITUDE FROM REFLECTORS THAT LIE BEHIND A WEAKLY ATTENUATING STRUCTURE IS ___.

A

ENHANCEMENT

78
Q

A BEAM OF UTZ TRANSMITTED FROM A SURFACE VESSEL INTO THE OCEAN FOR THE DETECTION OF SUBMARINES

A

SONAR

79
Q

IT IS THE DISTANCE B/N ADJACENT BONDS OF COMPRESSION AND RAREFACTION

A

WAVELENGTH

80
Q

THIS TRANSMITS UTZ W/ THE LOWEST VELOCITY

A

AIR

81
Q

THE ABILITY TO RESOLVE STRUCTURES LYING PERPENDICULAR TO THE AXIS OF THE UTZ BEAM IS CALLED __.

A

LATERAL RESOLUTION

82
Q

TYPICAL VALUE OF ATTENUATION IN SOFT TISSUE

A

1 dB/cm/MHz

83
Q

REFLECTION REFERS TO ___.

A

REDIRECTION OF A PORTION OF UTZ BEAM FROM A BOUNDARY

84
Q

NOT IN AUDIBLE RANGE

A

> 20KHz

85
Q

IT IS TO BE CONSIDERED THE HEART OF UTZ TRANSDUCER

A

CRYSTAL

86
Q

USEFUL FORM OF IMAGING TRANSDUCERS FOR SUPERFICIAL STRUCTURES

A

HIGH FREQUENCY, SHORT FOCUS

87
Q

THE CHANGE IN DIRECTION OF AN ULTRASONIC BEAM, WHEN IT PASSES FROM ONE MEDIUM TO ANOTHER, IN W/C ELASTICITY AND DENSITY DIFFER FROM THOSE OF THE FIRST MEDIUM IS CALLED __.

A

REFRACTION

88
Q

___ IS THE MULTIPURPOSE PROBE

A

CONVEX

89
Q

A PROBE W/C HAS SMALL FOOTPRINTS AND CAN BE ALSO USED FOR ABDOMINAL AND TRANSCRANIAL

A

CARDIAC PROBE

90
Q

A PROBE MOVEMENT ACROSS THE SKIN W/O ROTATING TILTING OR ROCKING

A

SLIDE

91
Q

ASCITES

A

ABDOMEN: INDICATION

92
Q

ABDOMINAL ANEURYSM

A

ABDOMEN: INDICATION

93
Q

ABNORMAL BLOOD TEST RESULTS

A

ABDOMEN: INDICATION

94
Q

A HEALTHY LIVER HAS A ____ ECHO REFLECTION PATTERN AND SMOOTH CONTOURS

A

HOMOGENOUS

95
Q

THE LIVER PARENCHYMA HAS VIRTUALLY THE SAME ECHOGENICITY AS THE __ OF THE R. KIDNEY

A

CORTEX

96
Q

PORTAL VEIN

A

LIVER VESSELS (3)

97
Q

HEPATIC ARTERY

A

LIVER VESSELS (3)

98
Q

HEPATIC VEIN

A

LIVER VESSELS (3)

99
Q

THE HEPATIC VEINS HAVE ___ WALLS, MAKING THEM EASILY DISTINGUISHABLE FROM THE PORTAL

A

HYPERECHOIC

100
Q

THE “BUNNY SIGN” REPRESENT WHAT VESSEL OF THE LIVER

A

PORTAL VEIN

101
Q

THE “MICKEY MOUSE SIGN” REPRESENTS WHAT VESSEL OF THE LIVER

A

HEPATIC VEIN

102
Q

WHAT IS THE BEST PREPARATION IN ORDER TO DEMONSTRATE THE GB

A

NPO

103
Q

GB WALL THICKNESS USUALLY

A

<2 mm

104
Q

THE __ IS LOCATED IN THE LIVER HILUM

A

CBD

105
Q

THE R. KIDNEY CAN BE IMAGED EFFECTIVELY BY USING WHAT ACOUSTIC WINDOW?

A

LIVER

106
Q

AVERAGE ADULT KIDNEY SIZE IS USUALLY ___.

A

9-12 CM

107
Q

AN ORGAN SHOULD NOT IDENTIFIABLE IN UTZ OF AN ADULT PX

A

ADRENAL GLAND

108
Q

WHAT IS THE ECHOGENICITY OF A FLUID FILLED BLADDER

A

ANECHOIC

109
Q

WHAT IS THE ACOUSTIC WINDOW USED TO EVALUATE THE DISTAL URETERAL ORIFICES IN THE POSTERIOR BLADDER WALL

A

FLUID FILLED BLADDER

110
Q

WHAT ORGAN CAN BE USED AS AN ACOUSTIC WINDOW IN ORDER TO EVALUATE THE TAIL OF THE PANCREAS

A

SPLEEN

111
Q

WHAT ANATOMICAL PART CAN BE CENTRALLY LOCATED IN THE ABDOMEN

A

ABDOMINAL AORTA

112
Q

___ IS A LIMITING FACTOR IN RELIABLE EVALUATION OF INTESTINAL WALL

A

INTESTINAL GAS

113
Q

THE APPENDIX IS COMPRESSIBLE AND NORMALLY HAS A DIAMETER OF UNDER ____

A

7 mm

114
Q

WHAT IS THE ECHOGENICITY OF A FLUID-FILLED CYST UTZ

A

ANECHOIC

115
Q

___ ARE THE MOST COMMON MALIGNANT LIVER ABNORMALITIES

A

METASTASES

116
Q

WHAT IS THE ECHOGENICITY OF THE BILE STONES

A

HYPERECHOIC

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