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Basics of Focal Therapy Slidedeck > Tech Training > Flashcards

Tech Training Flashcards

1
Q

Power output during HIFU P/F

A

P = 3 mhz P= 200w

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2
Q

Transducer used to focus ultrasound, causing ablation of bio tissue

A

3 mhzx HIFU transudcer

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3
Q

What is the size of the energy field, during the firing phase

A

1.7 diameter 5 long

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4
Q

THe screen that displays the US imaging and performs the fusion from the DX imagw

A

Imaging Screen

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5
Q

Used to plan and control HIFU procedure in real time

A

Control Screen

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6
Q

How many concentric rings are on the prob

A

16

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7
Q

What componet delivers the ultrasound energy from the probe

A

Electronic Dynamic Focusing and 16 Rings

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8
Q

This transducer provides US imaging

A

7,5 mhz transducer

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9
Q

How many transducers are on the endorectal probe

A

2

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10
Q

What componet performs the HIFU procedure by delivering targeted US energy to specific target area

A

Endorectal probe

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11
Q

What is the temperature at the focal point

A

185 - 203

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12
Q

Important considerations when positioning the probe at the start of the procedure 4

A
  1. Angle probe holder anterior/posterior 2. place orange line on the rectal wall 3. Probe is centered in the mid recturm 4 . Facing the target lobe
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13
Q

What will allow for the easiest probe movements

A

The image aquisition should be as horizontal as possible

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14
Q

What are the 3 features of rectal probe

A
  1. Non-invasive, robotic controlled energy2. Confirmational software3. Perserves patient QoL
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15
Q

What are the 3 funcations of the focal pak

A
  1. Provides optimal US propogation2. assists in dilating the anus sphincter3. cools down rectum w/ Ablasonic liqui
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16
Q

Describe automatic motor centering

A

Occurs at start of procedure to test ROI and internal componets

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17
Q

What do yellow lines simulate

A

Limitis of the ablation zone

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18
Q

What is required to complete a MRI fusion

A
  1. T2 sequence2. 3X contours3. ROI Contor
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19
Q

Probe starting position

A
  1. Centered in rectum2. Facing the target lobe
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20
Q

Required PC for software

A
  1. windows 102. 1366x7663. 15.6 screern4. mouse5. 800 ram6. intel i5 second gen
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21
Q

Allows you to find the synchronization between images in real time and aquisition images

A

padlock

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22
Q

Indicts similarity between two geometrical points

A

Hausdorf distance color map

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23
Q

Evaluates the similarity between contoured US volume and fusion result, should be as close to 100 as possible

A

Dice Coefficicent

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24
Q

Indicates that images are synced

A

padlock closed

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25
Q

what is syncronization

A

Occurs when the long/cross planes match perfectly

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26
Q

Fusion can only occure when 4 things are met

A
  1. MRI loaded2. MRI prostate contour loaded3. ROI loaded4. US prostate contour loaded
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27
Q

How to zoom on an image

A

Right click mouse, off of the image

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28
Q

Required imaging sequence

A

T2

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29
Q

MRI volume is deformed to overlay the images as precise as possible

A

eleastic fusion

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30
Q

Detects extraprostatic extension and finds suspicious areas

A

multi-parametic MRI

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31
Q

Term for sweeping the prostate from L to U

A

Scanning process

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32
Q

Occures when the probe learns the lower limit and returns to upper limit

A

Selecting aqusistion

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33
Q

Combines diagnostic and us images to better ID target

A

fusion

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34
Q

Menu that aloows changes to US parameters

A

Ultrasound Menu

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35
Q

Slice naming convention

A

Area, Block, slice

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36
Q

Menu with 3 options:1. start new treatement2. review treatments3. exit

A

main menu

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37
Q

When is patient information deleated from system

A

after transfer to USV

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38
Q

Occurs when MRI volume undergoes 3D deformation

A

eleastic fusion

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39
Q

MRI sequence required for Focal One 3

A
  1. T22. Diffusion3. Perfusion
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40
Q

What images are produced by the probe

A

Transverse

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41
Q

Positoin of the probe

A

Centered in rectum facing target area

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42
Q

Occures if images aren’t synced

A

Padlock

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43
Q

How many degrees of freedom

A

5

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44
Q

How many translational degrees of freedome

A

3

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45
Q

How many Rotation degrees of freedome

A

2

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46
Q

What 3 things does the software allow a urologist to do

A
  1. input images2. visualize anatomy3. perform elestic fusion
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47
Q

What increments of energy are applied when firing

A

5 mm increments

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48
Q

How many slices are used at a time for planning

A

5

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49
Q

THe system will automatically execute plan after

A

Each 5 slice block is planned

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50
Q

ablation time for single treamtnet

A

45 minutes

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51
Q

ablation time for hemi

A

1 hr

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52
Q

Whole gland ablation time

A

90

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53
Q

What are the two robotic functions

A
  1. autonomous in executing plan2. Measures psotion of rectal wall and re-adjusts in real time before firing
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54
Q

What features allows 5 degrees of freedome

A

robotic positoning system

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55
Q

Increments of energy delivery

A

5 mm

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56
Q

slice size to ensure full ablation area

A

1.7

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57
Q

componets of power keypad

A
  1. lock/unlock trey2. 2 USB connectors3. Power button4. Emergency stop
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58
Q

Rear panal componets

A
  1. equipotential bond2. RJ 45 connector3. Electrical plug
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59
Q

of people recommended to move the system with slope < 2, <10, 10+

A

124

60
Q

What are the four controls on the keypad

A
  1. Raise probe support2. Lower probe support3. Release all movmeents4. Release only angular movements
61
Q

used to fill or empty the balloon

A

clamp

62
Q

used to perforate injection site on ablasonic pouch

A

perforator

63
Q

Connects the tubing to the probe

A

2 Luer connectors

64
Q

Focal One Pak includes 5

A
  1. balloon2. ligature3. ablasonic fluid4. accoustic gel
65
Q

24 Volt shutdown and turns off motor card/amplifier/Cooling Unit/Electromagnets

A

Emergency stop

66
Q

Verifies that software is active and turns on sub-assemblies

A

Watch Dog

67
Q

Location of image transducer

A

probe

68
Q

How are images orientated on the screen

A

Patient R/L is on L/R of screen

69
Q

Accoustic frequency

A

7.5

70
Q

Accoustic Resolution

A

only one focalized point at 25 mm

71
Q

MRI accoustic setting

A

1, 2<1, 2

72
Q

MRI accoustic measurement uncertainty

A

15%

73
Q

Max accoustic power

A

720 mW/cm

74
Q

Componet that administers HIFI

A

Tranducer

75
Q

How many piezoelectric elements on the probe

A

16

76
Q

Mechanical vibrations of therapy transducers generates accoustic waves and pressure in propagnatic medium

A

HIFU

77
Q

What makes the US “focused:

A

Spherical shape of ultrasound

78
Q

type of energy carried by US waves

A

High Intensity

79
Q

Adjustable through the dedicated electronic control system

A

Focal Point

80
Q

Between what componets is Ablasonic fluid circulated

A

Between the probe and cooling unit

81
Q

Probe location in intermediate vertical position

A

1m from floor

82
Q

Connectors equiped with protective cover with locking screws

A
  1. Shooting connector2. US probe connector
83
Q

Connector to the left of inflow with 2 black wires

A

Inflow Connector

84
Q

Connector to the right of the inflow with 2 black wires

A

Luer connector to the cooling unit

85
Q

Integrated temperature decector

A

Measures temp of Ablasonic fluid

86
Q

Where does the Ablasonic fluid enter the balloon

A

Hole at nose of probe

87
Q

Placed on tip of probe, on shooting transducer

A

Balloon placement

88
Q

Allows the process to continue without loss or defraction

A

Propogation coefficient

89
Q

Purpose of Ablasonic Fluid 3

A
  1. Control transmission of US waves between the probe and rectum2. Protests rectal mucosa
90
Q

What 5 axis does the probe move

A
  1. long2. transverse3. rotational4. angular5. vertical
91
Q

How many axis does the probe move along

A

5

92
Q

Light that shows system has power

A

Green

93
Q

Ensures circulation of cooling fluid

A

Pump

94
Q

Which direction does the probe rotate

A

along the longitudinal axis

95
Q

Allows the probe to move during the procedure

A

electromagnets under robotic control

96
Q

Ensures patient doesnt move during the procedure

A

Fixed patient movement detector

97
Q

3 ways to import DX data

A
  1. through PACS2. USB3. CD/DVD
98
Q

Allows diagnostic information to be transposed on the US image

A

HIFUsion software

99
Q

Integrated US setting

A

7.5 mhz

100
Q

INtegrated in the center of the probe, enables visualization of the prostate

A

Transverse imaging transducer

101
Q

Why are shots taken at different focal depths

A

Allows stacking elementary lesions IOT adjsut height

102
Q

Focused width Z

A

6.4

103
Q

Focalwidth Y

A

1mm

104
Q

Focal width on X

A

0.58

105
Q

Focal width definition

A

-6dB

106
Q

Transducer accoustic dimension

A

Z

107
Q

Transducer transverse dimension

A

Y

108
Q

Transducter longitudinal dimension

A

X

109
Q

Transducer, diameter of central opening

A

24.8

110
Q

Transducer truncation

A

35 mm

111
Q

Transducer focal distance

A

60

112
Q

Transducer diameter

A

57.5

113
Q

What allows focaliaation of US waves @ 60mm

A

Spherical Transducer

114
Q

Feature enables dynamic scanning in anterioposterior axis of focal point

A

Dynamic focusing

115
Q

US emission freq

A

3 mhz

116
Q

Createts a desyncronization effect by exciting electrical signals

A

Transducer coupled w/amp

117
Q

Equipped with an annular array transducer with 16 concentric rings

A

Dynamic focusing prove

118
Q

Maintains controled temperature flow to perserve rectal wall

A

Ablasonic liquid

119
Q

Coagulative tissue

A

Tissue with cell death when blood flow slows or stops

120
Q

350mm bag w/ hole at the extremes

A

Ablsonic pouch

121
Q

3 descriptions of Ablasonic fluid

A
  1. Interface between probe and rectum2. Enables proper positioning3. Cool by internal machine
122
Q

3 Ablasonic features

A
  1. optimized forumla with excellent accoustics2. stable3. high cavitation threshold
123
Q

How much US gel is included

A

20G

124
Q

3 purposes of accoustic gel

A
  1. lubricant to dilate anus2. facilitates probe insertion3. Improves accoustic interface
125
Q

Size of syringe in Focal Pak

A

50 cc

126
Q

relfects light from patient motion infred sensor

A

reflector

127
Q

Flexible tape wound on probe holding balloon

A

Ligature

128
Q

Risk of using 3rd party ballon

A

excessive heat

129
Q

consumables not included 6

A
  1. OPR table2. adhesive bag receptical3. sterile gloves4. non-sterile gloves5 urine cath6. compression socks
130
Q

Probe installation steps 7

A
  1. place in mount without removing covering2. lock probe3. Attach US4. Attached and manage cables5. emergency stop not pressed6. turn on system7. Wait until power light turns green
131
Q

Green connector, locked by turning clockwise

A

US model 1

132
Q

White connector with cables facing up and turned to right to lock

A

US model 2

133
Q

5 accessories in Focal Pak

A
  1. tubes2.US gel pouch3. balloon4. ligature5. Ablasonic Fluid
134
Q

Luer connector warm return

A

female

135
Q

Luer connector for cold return

A

Male

136
Q

When does the probe not move

A

when 2elementary lesions are in the same global lesion

137
Q

Moves only in ther axis of accoustic propogation

A

focal point

138
Q

Which direction is firing sequence executed

A

Distal to proximal

139
Q

Probe is equiped with only _____imaging transducer

A

transverse

140
Q

3D reconstruction from of prostate from series of cross-sectional images taken between LL/UP

A

Purpose of Scanning

141
Q

How will longitudinal slices be obtained

A

through 3D reconstruction of prostate from transverse images

142
Q

Minimum safe distance from apex/LL

A

2 mm

143
Q

Probe temperature in firing mode

A

18-Oct

144
Q

Indicates that HIFI power is on

A

Red LED on working table

145
Q

What combination of 2 phenomenon cause ablation

A

Focused sound wave that heat tissuecauseing cavitatoin

146
Q

How many digits make up the error code

A

6

Basics of Focal Therapy Slidedeck (12 decks)

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