Tech Training Flashcards
1
Q
Power output during HIFU P/F
A
P = 3 mhz P= 200w
2
Q
Transducer used to focus ultrasound, causing ablation of bio tissue
A
3 mhzx HIFU transudcer
3
Q
What is the size of the energy field, during the firing phase
A
1.7 diameter 5 long
4
Q
THe screen that displays the US imaging and performs the fusion from the DX imagw
A
Imaging Screen
5
Q
Used to plan and control HIFU procedure in real time
A
Control Screen
6
Q
How many concentric rings are on the prob
A
16
7
Q
What componet delivers the ultrasound energy from the probe
A
Electronic Dynamic Focusing and 16 Rings
8
Q
This transducer provides US imaging
A
7,5 mhz transducer
9
Q
How many transducers are on the endorectal probe
A
2
10
Q
What componet performs the HIFU procedure by delivering targeted US energy to specific target area
A
Endorectal probe
11
Q
What is the temperature at the focal point
A
185 - 203
12
Q
Important considerations when positioning the probe at the start of the procedure 4
A
- 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
13
Q
What will allow for the easiest probe movements
A
The image aquisition should be as horizontal as possible
14
Q
What are the 3 features of rectal probe
A
- Non-invasive, robotic controlled energy2. Confirmational software3. Perserves patient QoL
15
Q
What are the 3 funcations of the focal pak
A
- Provides optimal US propogation2. assists in dilating the anus sphincter3. cools down rectum w/ Ablasonic liqui
16
Q
Describe automatic motor centering
A
Occurs at start of procedure to test ROI and internal componets
17
Q
What do yellow lines simulate
A
Limitis of the ablation zone
18
Q
What is required to complete a MRI fusion
A
- T2 sequence2. 3X contours3. ROI Contor
19
Q
Probe starting position
A
- Centered in rectum2. Facing the target lobe
20
Q
Required PC for software
A
- windows 102. 1366x7663. 15.6 screern4. mouse5. 800 ram6. intel i5 second gen
21
Q
Allows you to find the synchronization between images in real time and aquisition images
A
padlock
22
Q
Indicts similarity between two geometrical points
A
Hausdorf distance color map
23
Q
Evaluates the similarity between contoured US volume and fusion result, should be as close to 100 as possible
A
Dice Coefficicent
24
Q
Indicates that images are synced
A
padlock closed
25
what is syncronization
Occurs when the long/cross planes match perfectly
26
Fusion can only occure when 4 things are met
1. MRI loaded2. MRI prostate contour loaded3. ROI loaded4. US prostate contour loaded
27
How to zoom on an image
Right click mouse, off of the image
28
Required imaging sequence
T2
29
MRI volume is deformed to overlay the images as precise as possible
eleastic fusion
30
Detects extraprostatic extension and finds suspicious areas
multi-parametic MRI
31
Term for sweeping the prostate from L to U
Scanning process
32
Occures when the probe learns the lower limit and returns to upper limit
Selecting aqusistion
33
Combines diagnostic and us images to better ID target
fusion
34
Menu that aloows changes to US parameters
Ultrasound Menu
35
Slice naming convention
Area, Block, slice
36
Menu with 3 options:1. start new treatement2. review treatments3. exit
main menu
37
When is patient information deleated from system
after transfer to USV
38
Occurs when MRI volume undergoes 3D deformation
eleastic fusion
39
MRI sequence required for Focal One 3
1. T22. Diffusion3. Perfusion
40
What images are produced by the probe
Transverse
41
Positoin of the probe
Centered in rectum facing target area
42
Occures if images aren't synced
Padlock
43
How many degrees of freedom
5
44
How many translational degrees of freedome
3
45
How many Rotation degrees of freedome
2
46
What 3 things does the software allow a urologist to do
1. input images2. visualize anatomy3. perform elestic fusion
47
What increments of energy are applied when firing
5 mm increments
48
How many slices are used at a time for planning
5
49
THe system will automatically execute plan after
Each 5 slice block is planned
50
ablation time for single treamtnet
45 minutes
51
ablation time for hemi
1 hr
52
Whole gland ablation time
90
53
What are the two robotic functions
1. autonomous in executing plan2. Measures psotion of rectal wall and re-adjusts in real time before firing
54
What features allows 5 degrees of freedome
robotic positoning system
55
Increments of energy delivery
5 mm
56
slice size to ensure full ablation area
1.7
57
componets of power keypad
1. lock/unlock trey2. 2 USB connectors3. Power button4. Emergency stop
58
Rear panal componets
1. equipotential bond2. RJ 45 connector3. Electrical plug
59
of people recommended to move the system with slope < 2, <10, 10+
124
60
What are the four controls on the keypad
1. Raise probe support2. Lower probe support3. Release all movmeents4. Release only angular movements
61
used to fill or empty the balloon
clamp
62
used to perforate injection site on ablasonic pouch
perforator
63
Connects the tubing to the probe
2 Luer connectors
64
Focal One Pak includes 5
1. balloon2. ligature3. ablasonic fluid4. accoustic gel
65
24 Volt shutdown and turns off motor card/amplifier/Cooling Unit/Electromagnets
Emergency stop
66
Verifies that software is active and turns on sub-assemblies
Watch Dog
67
Location of image transducer
probe
68
How are images orientated on the screen
Patient R/L is on L/R of screen
69
Accoustic frequency
7.5
70
Accoustic Resolution
only one focalized point at 25 mm
71
MRI accoustic setting
1, 2<1, 2
72
MRI accoustic measurement uncertainty
15%
73
Max accoustic power
720 mW/cm
74
Componet that administers HIFI
Tranducer
75
How many piezoelectric elements on the probe
16
76
Mechanical vibrations of therapy transducers generates accoustic waves and pressure in propagnatic medium
HIFU
77
What makes the US "focused:
Spherical shape of ultrasound
78
type of energy carried by US waves
High Intensity
79
Adjustable through the dedicated electronic control system
Focal Point
80
Between what componets is Ablasonic fluid circulated
Between the probe and cooling unit
81
Probe location in intermediate vertical position
1m from floor
82
Connectors equiped with protective cover with locking screws
1. Shooting connector2. US probe connector
83
Connector to the left of inflow with 2 black wires
Inflow Connector
84
Connector to the right of the inflow with 2 black wires
Luer connector to the cooling unit
85
Integrated temperature decector
Measures temp of Ablasonic fluid
86
Where does the Ablasonic fluid enter the balloon
Hole at nose of probe
87
Placed on tip of probe, on shooting transducer
Balloon placement
88
Allows the process to continue without loss or defraction
Propogation coefficient
89
Purpose of Ablasonic Fluid 3
1. Control transmission of US waves between the probe and rectum2. Protests rectal mucosa
90
What 5 axis does the probe move
1. long2. transverse3. rotational4. angular5. vertical
91
How many axis does the probe move along
5
92
Light that shows system has power
Green
93
Ensures circulation of cooling fluid
Pump
94
Which direction does the probe rotate
along the longitudinal axis
95
Allows the probe to move during the procedure
electromagnets under robotic control
96
Ensures patient doesnt move during the procedure
Fixed patient movement detector
97
3 ways to import DX data
1. through PACS2. USB3. CD/DVD
98
Allows diagnostic information to be transposed on the US image
HIFUsion software
99
Integrated US setting
7.5 mhz
100
INtegrated in the center of the probe, enables visualization of the prostate
Transverse imaging transducer
101
Why are shots taken at different focal depths
Allows stacking elementary lesions IOT adjsut height
102
Focused width Z
6.4
103
Focalwidth Y
1mm
104
Focal width on X
0.58
105
Focal width definition
-6dB
106
Transducer accoustic dimension
Z
107
Transducer transverse dimension
Y
108
Transducter longitudinal dimension
X
109
Transducer, diameter of central opening
24.8
110
Transducer truncation
35 mm
111
Transducer focal distance
60
112
Transducer diameter
57.5
113
What allows focaliaation of US waves @ 60mm
Spherical Transducer
114
Feature enables dynamic scanning in anterioposterior axis of focal point
Dynamic focusing
115
US emission freq
3 mhz
116
Createts a desyncronization effect by exciting electrical signals
Transducer coupled w/amp
117
Equipped with an annular array transducer with 16 concentric rings
Dynamic focusing prove
118
Maintains controled temperature flow to perserve rectal wall
Ablasonic liquid
119
Coagulative tissue
Tissue with cell death when blood flow slows or stops
120
350mm bag w/ hole at the extremes
Ablsonic pouch
121
3 descriptions of Ablasonic fluid
1. Interface between probe and rectum2. Enables proper positioning3. Cool by internal machine
122
3 Ablasonic features
1. optimized forumla with excellent accoustics2. stable3. high cavitation threshold
123
How much US gel is included
20G
124
3 purposes of accoustic gel
1. lubricant to dilate anus2. facilitates probe insertion3. Improves accoustic interface
125
Size of syringe in Focal Pak
50 cc
126
relfects light from patient motion infred sensor
reflector
127
Flexible tape wound on probe holding balloon
Ligature
128
Risk of using 3rd party ballon
excessive heat
129
consumables not included 6
1. OPR table2. adhesive bag receptical3. sterile gloves4. non-sterile gloves5 urine cath6. compression socks
130
Probe installation steps 7
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
Green connector, locked by turning clockwise
US model 1
132
White connector with cables facing up and turned to right to lock
US model 2
133
5 accessories in Focal Pak
1. tubes2.US gel pouch3. balloon4. ligature5. Ablasonic Fluid
134
Luer connector warm return
female
135
Luer connector for cold return
Male
136
When does the probe not move
when 2elementary lesions are in the same global lesion
137
Moves only in ther axis of accoustic propogation
focal point
138
Which direction is firing sequence executed
Distal to proximal
139
Probe is equiped with only _____imaging transducer
transverse
140
3D reconstruction from of prostate from series of cross-sectional images taken between LL/UP
Purpose of Scanning
141
How will longitudinal slices be obtained
through 3D reconstruction of prostate from transverse images
142
Minimum safe distance from apex/LL
2 mm
143
Probe temperature in firing mode
18-Oct
144
Indicates that HIFI power is on
Red LED on working table
145
What combination of 2 phenomenon cause ablation
Focused sound wave that heat tissuecauseing cavitatoin
146
How many digits make up the error code
6
