UTZ:BUFF Flashcards
1
Q
VELOCITY OF UTZ IN SOFT TISSUE
A
1540 M/S
2
Q
PIEZO MEANS ____
A
PRESSURE
3
Q
AS FREQUENCY INCREASES, PENETRATION WILL, ____
A
DECREASE
4
Q
AXIAL RESOLUTION IS (2)
A
- ABILITY TO DISTINGUISH 2 OBJECTS // TO THE UTZ BEAM
5
Q
AXIAL RESOLUTION (2)
A
- SAME AS DEPTH, LONGITUDINAL AND RANGE RESOLUTION
6
Q
IF FREQUENCY INCREASES, WAVELENGTH WILL ___
A
DECREASE
7
Q
PROGRESSIVE WEAKENING OF THE UTZ BEAM AS IT TRAVELS
A
ATTENUATION
8
Q
WAVELENGTH IS A MEASURE OF ____
A
DISTANCE
9
Q
ATTENUATION CAN OCCUR BY: ___
A
DIVERGENCE, SCATTERING, REFLECTION, REFRACTION, ABSORPTION
10
Q
___ HAS THE PROPAGATION SPEED CLOSEST TO THE AVERAGE SOFT TISSUE
A
MUSCLE
11
Q
ARRANGE THE MEDIUM IN TERMS OF PROPAGATION VELOCITY. FROM LOWEST TO HIGHEST
A
AIR, FAT, MUSCLE, BONE
12
Q
HIGHER ACOUSTIC IMPEDANCE COEFFICIENT B/N THESE THREE: SOLID, LIQUID, GAS
A
SOLID
13
Q
PRODUCTION AND BEHAVIOUR OF GAS BUBBLES
A
CAVITATION
14
Q
ABSORPTION REFERS TO ___
A
CONVERSION OF SOUND TO HEAT
15
Q
RECOMMENDED FOR STERILIZING THE TRANSDUCER
A
ETHYLENE DIOXIDE
16
Q
EXAMPLE OF ACOUSTIC WINDOW
A
LIVER INTERFACE
17
Q
CAN’T BE DISTINGUISHED IN UTZ
A
INDIVIDUAL CELLS
18
Q
REFRACTION OCCURS DUE TO DIFFERENCE IN __ ACROSS AN INTERFACE B/N 2 MATERIALS
A
DENSITY
19
Q
REFERENCE MARKER CORRESPONDS TO THE
A
CRANIAL AND RIGHT
20
Q
SAGITTAL : PROBE MARKER POINTS
A
CRANIALLY
21
Q
MEDICAL IMAGING TECHNIQUE THAT USES HIGH FREQUENCY SOUND WAVES AND THEIR ECHOES
A
ULTRASONOGRAPHY
22
Q
ECHOLOCATION METHOD
A
SONAR (SOUND NAVIGATION AND RANGING)
23
Q
A RECENT ADVANCEMENT IN ELECTRONICS AND COMPUTING POWER IN ULTRASONOGRAPHY W/C SHOWS GREATER DETAIL SUCH AS PERSPECTIVE
A
5D
24
Q
SPATIAL PULSE LENGTH (SPL) DETERMINES
A
PENETRATION DEPTH
25
AXIAL RESOLUTION DEPENDS UPON THE ___
WAVELENGTH
26
LATERAL RESOLUTION DEPENDS UPON __
BEAM DIAMETER
27
THE BEAM OF AN UNFOCUSED TRANSDUCER DIVERGES
IN THE FRAUNHOFER ZONE
28
RESULT OF 2 OR MORE REFLECTING SURFACES
REVERBERATION
29
DOPPLER APPLICATION: 4
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
30
RANGE OF FREQUENCIES CONTAINED IN AN UTZ PULZE IS CALLED __
BANDWIDTH
31
GREATEST DOPPLER SHIFT IS ACHIEVED ___.
WHEN THE BEAM STRIKES A VESSEL AT SHARP ANGLE
32
IT REFERS TO THE DEGREE OF AMPLIFICATION APPLIED TO ALL RETURNING SIGNALS
GAIN CONTROL
33
ABILITY OF AN IMAGING SYSTEM TO DETECT WEAK REFLECTION IS
SENSITIVITY
34
A TERM of NO SIGNAL OR REFLECTION DETECTED IN UTZ
ANECHOIC
35
TYPE OF THE TRANSDUCER COMMONLY USED IN UTZ
CONVEX
36
ARTIFACTS APPEARING AS //, EQUALLY SPACED LINES CHARACTERISTICS OF ___
REVERBERATION
37
THE AMOUNT OF DISPERSION IN THE FAR FIELD CAN BE DECREASED BY __
USING LARGE DIAMETER TRANSDUCER
38
LONGITUDINAL OR AXIAL RESOLUTION DIRECTLY DEPENDENT ON __
SPL (SPATIAL PULSE LENGTH)
39
MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4
1. CORK
40
MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4
2. RUBBER
41
MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4
3. EPOXY RESIN
42
MATERIALS SUITABLE AS ACOUSTIC INSULATOR FOR TRANSDUCER BACKING: 4
4. ARALDITE LOADED W/ TUNGSTEN POWDER INSIDE
43
DAMPING MATERIAL FUNCTION: 3
1. REDUCE PULSE DURATION
44
DAMPING MATERIAL FUNCTION: 3
2. IMPROVE AXIAL RESOLUTION
45
DAMPING MATERIAL FUNCTION: 3
3. REDUCE SPL (SPATIAL PULSE LENGTH)
46
HIGHER FREQUENCY ENABLES HIGHER RESOLUTION BUT _
REDUCED PENETRATION DEPTH
47
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?
REFRACTION
48
LOOSING OF THE UTZ BEAM ENERGY AS IT PASS THROUGH THE STRUCTURES OF THE BODY
ATTENUATION
49
TECHNIQUE THAT CAN BE USED TO EVALUATE PRESENCE OF FLOW AND DIRECTION IN A BLOOD VESSEL
DOPPLER
50
SOUND FREQUENCY INCREASES W/ __
POSITIVE DOPPLER SHIFT
51
____ CAUSED BY 2 PHENOMENA, TOTAL REFLECTION, OR ABSORPTION
REVERBERATION
52
A PHENOMENA OCCUR WHEN SOUND WAVES MOVE THRU AN ANECHOGENIC STRUCTURE (I.E CYST)
ACOUSTIC ENHANCEMENT
53
FULL BLADDER PREP FOR ___
PELVIS
54
EMPTY BLADDER FOR
TRANSVAGINAL AND TRANSRECTAL
55
FOR FULL BLADDER EXAMS, HOW MUCH FLUID INTAKE
32 OZ (150-600 CC)
56
STRUCTURES APPEAR WHITE ON SCREEN
HYPERECHOIC
57
2 TISSUES W/ SAME AMNT OF ECHOGENICITY
ISOECHOIC
58
HIGH FREQUENCY = ___
BETTER RESOLUTION
59
GIVES RECTANGULAR IMAGE
LINEAR ARRAY
60
GOOD FOR SMALL PARTS AND FOR GAUGING DEPTH
LINEAR ARRAY
61
GIVES MORE ONE-DIMENSIONAL VIEW
LINEAR ARRAY
62
USES SAME LINEAR ORIENTATION BUT ARRANGED ON A CURVED SURFACE
CURVILINEAR
63
GENERALLY LOWER FREQUENCY
CURVILINEAR
64
GIVES A WIDER ANGLE OF VIEW
CURVILINEAR
65
A SUBSTANCE THAT REMOVES FRICTION B/N THE PX AND THE TRANSDUCER
ULTRASOUND GEL
66
IT IS THE NARROWEST PORTION OF AN UTZ BEAM
FOCAL ZONE
67
PX FOR TVS (TRANSVAGINAL SONOGRAPHY) SHOULD BE PLACED IN WHAT POSITION?
LITHOTOMY (STIRRUP)
68
IN ORDER TO DEMO GB IN AN ADULT PX, HOW MANY HRS. OF FASTING SHOULD BE DONE
4-6 HRS
69
ANECHOIC
NORMAL GB
70
WALL THICKNESS <3 CM
NORMAL GB
71
TRANSVERSE DIAMETER <4 CM
NORMAL GB
72
MAY SEE FOLDS/ VALVES W/IN THE GB
NORMAL GB
73
ABDUCTING THE SCANNING ARM TO THE LEAST DEGREE OF ANGLE POSSIBLE
WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)
74
USING A HEIGHT ADJUSTABLE CHAIR
WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)
75
USING SEPARATE MONITOR FOR THE SONOGRAPHER AND THE PX
WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)
76
TAKING SHORT BUT FREQUENT BREAKS FROM SCANNING
WAYS TO REDUCE THE WORK RELATED MUSCLE DISORDER (4)
77
AS INCREASE IN REFLECTION AMPLITUDE FROM REFLECTORS THAT LIE BEHIND A WEAKLY ATTENUATING STRUCTURE IS ___.
ENHANCEMENT
78
A BEAM OF UTZ TRANSMITTED FROM A SURFACE VESSEL INTO THE OCEAN FOR THE DETECTION OF SUBMARINES
SONAR
79
IT IS THE DISTANCE B/N ADJACENT BONDS OF COMPRESSION AND RAREFACTION
WAVELENGTH
80
THIS TRANSMITS UTZ W/ THE LOWEST VELOCITY
AIR
81
THE ABILITY TO RESOLVE STRUCTURES LYING PERPENDICULAR TO THE AXIS OF THE UTZ BEAM IS CALLED __.
LATERAL RESOLUTION
82
TYPICAL VALUE OF ATTENUATION IN SOFT TISSUE
1 dB/cm/MHz
83
REFLECTION REFERS TO ___.
REDIRECTION OF A PORTION OF UTZ BEAM FROM A BOUNDARY
84
NOT IN AUDIBLE RANGE
>20KHz
85
IT IS TO BE CONSIDERED THE HEART OF UTZ TRANSDUCER
CRYSTAL
86
USEFUL FORM OF IMAGING TRANSDUCERS FOR SUPERFICIAL STRUCTURES
HIGH FREQUENCY, SHORT FOCUS
87
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 __.
REFRACTION
88
___ IS THE MULTIPURPOSE PROBE
CONVEX
89
A PROBE W/C HAS SMALL FOOTPRINTS AND CAN BE ALSO USED FOR ABDOMINAL AND TRANSCRANIAL
CARDIAC PROBE
90
A PROBE MOVEMENT ACROSS THE SKIN W/O ROTATING TILTING OR ROCKING
SLIDE
91
ASCITES
ABDOMEN: INDICATION
92
ABDOMINAL ANEURYSM
ABDOMEN: INDICATION
93
ABNORMAL BLOOD TEST RESULTS
ABDOMEN: INDICATION
94
A HEALTHY LIVER HAS A ____ ECHO REFLECTION PATTERN AND SMOOTH CONTOURS
HOMOGENOUS
95
THE LIVER PARENCHYMA HAS VIRTUALLY THE SAME ECHOGENICITY AS THE __ OF THE R. KIDNEY
CORTEX
96
PORTAL VEIN
LIVER VESSELS (3)
97
HEPATIC ARTERY
LIVER VESSELS (3)
98
HEPATIC VEIN
LIVER VESSELS (3)
99
THE HEPATIC VEINS HAVE ___ WALLS, MAKING THEM EASILY DISTINGUISHABLE FROM THE PORTAL
HYPERECHOIC
100
THE "BUNNY SIGN" REPRESENT WHAT VESSEL OF THE LIVER
PORTAL VEIN
101
THE "MICKEY MOUSE SIGN" REPRESENTS WHAT VESSEL OF THE LIVER
HEPATIC VEIN
102
WHAT IS THE BEST PREPARATION IN ORDER TO DEMONSTRATE THE GB
NPO
103
GB WALL THICKNESS USUALLY
<2 mm
104
THE __ IS LOCATED IN THE LIVER HILUM
CBD
105
THE R. KIDNEY CAN BE IMAGED EFFECTIVELY BY USING WHAT ACOUSTIC WINDOW?
LIVER
106
AVERAGE ADULT KIDNEY SIZE IS USUALLY ___.
9-12 CM
107
AN ORGAN SHOULD NOT IDENTIFIABLE IN UTZ OF AN ADULT PX
ADRENAL GLAND
108
WHAT IS THE ECHOGENICITY OF A FLUID FILLED BLADDER
ANECHOIC
109
WHAT IS THE ACOUSTIC WINDOW USED TO EVALUATE THE DISTAL URETERAL ORIFICES IN THE POSTERIOR BLADDER WALL
FLUID FILLED BLADDER
110
WHAT ORGAN CAN BE USED AS AN ACOUSTIC WINDOW IN ORDER TO EVALUATE THE TAIL OF THE PANCREAS
SPLEEN
111
WHAT ANATOMICAL PART CAN BE CENTRALLY LOCATED IN THE ABDOMEN
ABDOMINAL AORTA
112
___ IS A LIMITING FACTOR IN RELIABLE EVALUATION OF INTESTINAL WALL
INTESTINAL GAS
113
THE APPENDIX IS COMPRESSIBLE AND NORMALLY HAS A DIAMETER OF UNDER ____
7 mm
114
WHAT IS THE ECHOGENICITY OF A FLUID-FILLED CYST UTZ
ANECHOIC
115
___ ARE THE MOST COMMON MALIGNANT LIVER ABNORMALITIES
METASTASES
116
WHAT IS THE ECHOGENICITY OF THE BILE STONES
HYPERECHOIC
