Introduction to Scanning
for Cranial Remolding Helmets
Course Topics
• Orientation to hardware and software
• Cranial Helmet Applications
– Remolding Helmets: Shape Capture & Modification
– Protective Helmets
OMEGA Tracer
Shape Capture
Modification
Fabrication
Fabrication
Fabrication Partner
Becker
ContourMed
Danmar
Orthomerica
Orientation to
Hardware and Software
Computer Basics
• Turning computer on • Opening software
• Security • Internet
Key connection
Security Key Maintenance
• Allow the software to shut completely
down prior to removing the security key
• Premature removal can cause the key to
have a fatal error
• Replacement is the only option if this
occurs
File Management
• Email
• Software updates
• Checking In
• Importing/Exporting
• Sending to a carver
Software Basics
• Opening a file
– Open sample file John Doe
• Saving files / general file management
• Screen Areas
– Start, Modify and Assistant screens
• Menus
• Rotating the model
• Right and Left mouse controls
Tracer Menus
Tabs
Model Area
Notes Area
Orientation
Indicator Current Mouse
Controls
Left/Right
Status Area
Unit of Measurements
Modify vs. Assistant Screen
Modify Screen
Assistant Screen
Introduction to Basic Tools
and Functions
• Smoothing Options
• Build & Carve
• Undo
• Preferences
Smoothing Modes
Smoothing functions are applied using the Right mouse button
• Fill
– Only fills the lows
• Sand
– Only sands the peaks
• Blend
– Averages highs & lows
Too Much of a Good Thing…
Maximum Blend
Blend
Maximum Sand
Sand
Size of Work Area
Small Standard Large
½” 1”
2”
Build & Carve
Build & Carve functions are applied using the Left mouse button
• How they work
• Speed dependent
• Fixed amount
• The differences between the
two
• Work path size
• How wide is the “bit” being
used
• Predefined and Custom Sized
Build & Carve
Work Path of 2”
Build
2” .5” 1” .5”
Carve
Fixed Amount Speed Dependent
Smoothing vs. Build/Carve
Build
Fill
Sand
Carve
Turning ‘Off’ Tools
• Most Modification Tools can be
turned „OFF‟ by:
– pressing Esc on the keyboard
– pressing Stop on the Assistant
Screen
– Opening or starting another tool
Set Up Preferences and Tool Options
• Units of measurement
• Print options
• Leave Distal End Open when
appropriate
• Cranial Measurement Method
Options
• Smart blend shortcut set to B
Introduction to Shape Capture
with the OMEGA Scanner
OMEGA Scanner Officially
Approved as a Class 1 Laser Device
• No eye protection necessary
• Patient movement accommodated
during cranial scanning
• Child can stay in parent’s lap
during scanning
OMEGA Scanner
• LEDs illuminate reflective
targets on the surface
• Lasers are used to
determine the contours
for the surface
• High resolution digital
cameras “see” the lasers
and record the position
of the reflective targets
OMEGA Scanner Features
• Capable of scanning directly over skin, sock, liner,
plaster, or foam
• Able to scan complex and intricate or detailed
shapes and surfaces
• Can merge two scans to create a shape
• Can pause and resume during scanning session
Completely Portable!
Using the Scanner
• Hold the Scanner approximately 12” from the surface
to be scanned
• Aim toward the center of the area to be scanned
& press the trigger
• Move the Scanner to follow the contours of the surface
Green light = OK
Red lights = too close
or too far
Calibration/Optimizing the scanner
• Optimizing should be performed whenever the scanner
has been shipped or transported or if there is difficulty
scanning in a surface.
• If the scanner does not „travel‟, optimizing once a month is
sufficient.
• Each scanner has it‟s own specific
optimizing plate that is located in
the base of the scanner case.
–Make sure the serial number
on the scanner and the optimizing
plate match before optimizing
Cranial Remolding Helmets
Measurement Methods and Preferences
• Select the measurement method you will be using
– Custom Measurements
– Loveday / Tracer Searched
Scanning for Cranial Remolding Helmets
• OMEGA Scanner
provides quick,
non-contact
shape capture
Preparation for Scanning
• Apply
scanning cap
• Identify
landmarks
Landmark Guide
Basic
Landmark Full Reporting Becker
Comparison
Glabella
Anterior Midline
Lt. & Rt.
Frontozygomaticus
Lt. & Rt. Eurion
Lt. & Rt. Top of Ears
Lt. & Rt. Tragion
Nasal & Subnasale
Opisthocranion
Cranial Landmarks
Cranial Landmarks Defined
• Eurion [eu]: The most lateral point on the head (identified in opposition)
• Frontozygomaticus [fz]: The most lateral point on the frontozygomatic
suture (temporal crest of the frontal bone).
• Glabella [g]: The most prominent point in the medial sagittal plane
between the supraorbital ridges
• Nasion [n]: The midpoint of the nasofrontal suture
• Opisthocranion [op]: The most prominent point on the occiput
• Subnasale [sn]: In the midline, the junction between the lower border of
the nasal septum and the cutaneous portion of the upper lip.
• Tragion [t]: At the notch above the tragus of the ear where the upper edge
of the cartilage disappears into the skin of the face.
• Vertex [v]: The highest point on the head with the head in the Frankfort
horizontal plane
Cranial Practice
• Capture the
shape
• Modify
• Prepare for
fabrication
• Do not use
training rod on
patients when
scanning for
cranials.
Most Commonly used
Tools for Cranial
Modifications
• Relief Pad
• Symmetry: Copy Region
Left/Right
• Shift Area
• Build & Carve
• Trimline
Relief Pads
•What are Relief Pads?
•How to create them?
•How to save them
for repeated use?
•When to use them?
Creating and Saving Relief Pads
• Relief Pads: Custom and Predefined
−Provides the ability to create and save a specific region
in a desired shape, size and amount of change.
−A Relief Pad can be a build up or an excavation
−Relief Pads can be created then saved for
repeated use on future shapes.
−Predefined or „saved‟ relief pads can
be edited for shape, size and amount of change.
Anatomy of a Relief Pad
1st: Identify Apex First
APEX Area of maximum amount of Build
up or excavation.
2nd: Identify Outer
Perimeter of Region
The area the build up or excavation will
be blending or the „skived‟ edge of the
Perimeter of region total area to be affected.
Assigning a Build Up
3rd:
Determine the
amount of build up
Using the slider, select the
maximum amount of build up
at the Apex
4th:
Save Relief Pad for
future use
Relief Pads can be saved for
repeated use by selecting
the Save button on the
Raise/Lower screen
When to use Relief Pads?
• Relief Pads: Custom and Predefined
−Excellent modification tool option for:
−Plagiocephalic deformities
−Scaphocephalic deformities
−Brachycephalic deformities
Symmetry: Copy Region
•What is Symmetry:
Copy Region?
•How to use Symmetry:
Copy Region?
•When to use Symmetry:
Copy Region?
What is Symmetry: Copy Region?
• Symmetry:
Copy Region Left/Right
−Provides the ability to
identify a region to be
mirrored to the
corresponding opposite side
of the model.
How to use Symmetry: Copy Region?
1st: Identify Region
Identify the area to either be
copied To or From. This example
displays area to be copied From.
2nd: A mirror image of the
region is created
A corresponding region is created in
the mirror image of the original region
on the opposite side of the model.
Note: For best results, select Copy
Surface Contour Only.
How to use Symmetry: Copy Region?
3rd:
Determine the copy
percentage
Using the slider, select the
amount of mirroring to take
place, 0-100%.
When to use Symmetry by Region?
• Symmetry : Copy Region Left/Right
−Excellent modification tool option for:
−Plagiocephalic deformities
−Scaphocephalic deformities, ONCE side of head
is modified to the desired shape and contour.
−Contraindicated for Symmetrical Brachycephalic
deformities
Shift Area
•What is Shift Area?
•How to use Shift Area?
•When to use Shift Area?
What is Shift Area?
•Shift Area:
− Works like a „heat gun‟ tool to shift
or move an area
−The defined area can be edited
−The greatest amount of changed is
confined to single point apex
−Can shift or move an area in more
than one direction
How to use Shift Area?
1st: Identify Center of
Shift
Area of maximum amount of Build
up or excavation.
2nd: Identify Distance from
Center
The area the build up or excavation will
be blending or the „skived‟ edge of the
total area to be affected.
How to use Shift Area?
3rd:
Edit the shape of the region
or area
To further define or edit the shape of the
area selected, pull and drag the blue
lines using the left mouse button
4th:
Shifting the Area
Use the cursor or the arrows on the
keyboard to shift the area as needed.
Note: This is a „View Dependent‟ tool,
orientate the model as needed to pull and
drag the surface of the model
When to use Shift Area?
• Shift Area:
−Excellent modification tool option for any area that
does not require an apex sustained over a large
area.
Other tools to consider
• Extend
• Skeletal Fit
• Adjust
• Tool Pages
• Modification Wizards
Length Changing Options
•Extend or shorten the
model using these
methods:
−By Amount
−By Set Height Interval
− By Pulling Tissue
Using the Extend Options?
• Extend or shorten the model
−By Amount: Provides the ability to change the length between
two points by a specified amount.
Ex: Increase length by .5”
−Set Height Interval: Provides the ability to specify a length
between two points.
Ex: Distance from Glabella to Opisthocranion equals 15cm
− By Pulling Tissue: Allows you to “pull” the distal end of the
model by an amount entered while locking the model at the level
indicated by Top of Section and maintaining the volume constant.
−Ex: Elongation of socket by .5”
What is the Adjust tool?
•Adjust:
− Provides the ability to
adjust a model‟s
circumference, volume,
A/P and M/L at specified
levels.
Adjust ‘Modes’
1st:
Select an Adjustment Mode
Adjust
2nd:
Identify level to be adjusted.
Select from the list of landmarks provided
Adjust
2nd continued :
Identify level to be
adjusted
Click directly on the model
to create custom
landmarks
Adjust
3rd : Specify new measurement or amount of change.
Enter the desired amount, or the amount you wish the measurement to change by with the use
of a + or – sign.
To prevent a specific level from being adjusted enter +0 or click on the „Current‟ measurement
being displayed
Adjust
4th : Preview
Select Preview to view the desired changes.
5th : Lock
Select Lock to keep the
desired changes.
What is Skeletal Fit?
•Skeletal Fit:
− Provides the ability to
set a caliper distance or
measurement between
two points on a shape
Skeletal Fit
1st:
Place Arrows
These arrows will
always be opposing
each other.
Arrows can be placed by
selecting a landmark
from the list or by using
the left and right mouse
buttons as indicated.
Skeletal Fit
2nd: Determine movement of arrows.
Three options provided:
• Move each arrow equally
• Move Red Arrow Only
• Move Green Arrow Only
3rd: Determine
Desired
Measurement
The Current
Measurement will be
displayed.
Enter the Desired
Measurement
Skeletal Fit
4th: Applying Lock
Points
Lock points provide the
ability to isolate an area for
modification and „lock‟ or
prevent the rest of the
model from changing.
Add Lock Points to apply.
These white arrows
essentially build a fence
around the area to be
modified.
Select Done with Lock
Points once finished.
Skeletal Fit
5th : Preview
Select Preview to view the desired changes.
6th : Lock
Select Lock to keep the
desired changes.
Skeletal Fit
3rd : Determine
Desired Measurement
The Current Measurement will
be displayed.
Enter the Desired Measurement
What are Tool Pages?
•Tool Pages:
−Model specific tool screens that
display the useful tools for a specific
type of model on one easy to use
page.
Areas to consider
•Asymmetrically sloping crown or
forehead
•Neck Extensors
•Mastoid processes
•Occipital condyles
•Over-modifying or 100% mirroring
Modification Options by Deformity
• Modification for
– Plagiocephaly:
• Consider using Relief Pad and/or Copy Region
– Symmetrical Brachycephaly:
• Consider using Relief Pad
– Asymmetrical Brachycephaly:
• Consider using Relief Pad and/or Copy Region
– Scaphocephaly:
• Consider using Relief Pad to create the contour of one side, then
use Copy Region Left/Right to mirror the contour to the opposite
side.
– Craniosynostosis:
• Consider using the Adjust tool modification models
for changing circumference, M/L or A/P
Cranial Comparison Tool
Access through the tools
menu > cranial comparison
Current Model will be
shown
Browse or use drop down
list to select comparison
model to superimpose on
this model
Create Report using the
‘report’ button
Cranial Comparison Tool
• Allows you to track the progress of a patient by
comparing two scans to each other
Cranial Asymmetry Report
Ordering From
Becker, Danmar or Orthomerica
Requirements for Using
Cranial Fabrication Services
• Must be certified or licensed orthotist
• Must have cranial remolding orthosis experience
• Must be current on OMEGA account status
• Must have OMEGA Tracer Version 10.5 or greater
• Prior to placing first order, must obtain
pre-approval as follows…
Limits to Cranial File Size
• Cranial Shape File size must not
exceed 10MB
• Large photo files attached can stop the
file from going through
• Confirm with fabricator that file was
received
Review/Summary
• Review the series of patient care steps
that will now be part of your routine
• How to get help
• Additional functional capabilities with
the hardware & software
• Next steps
Resource Materials
• Manuals
– Available in PDF form
– Click on any item in Table of Contents
or Index to go to desired page
• Any questions?
• Thank You
Introduction to Scanning
for Cranial Remolding Helmets