iSite 3.5: System Preferences
Learning Objectives
Understand the purpose and configuration of:
• General Preferences
• Window Window/Center
• Image Processing
• Filters
• Annotations
• DICOM Sources
• Screen Overlay
• Paper Printing
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Learning Objectives (cont.)
• iExport
• iQuery
• Organization Dictionary
• Location Dictionary
• Plug Ins
• DICOM Print
• Body Part Dictionary (iSite Radiology only)
• Hanging Protocols (iSite Radiology only)
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Table of Contents
• General Preferences
• Window Window/Center
• Image Processing
• Filters
• Annotations
• DICOM Sources
• Screen Overlay
• Paper Printing
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Table of Contents (cont.)
• iExport
• iQuery
• Organization Dictionary
• Location Dictionary
• Plug Ins
• DICOM Print
• Body Part Dictionary (iSite Radiology only)
• Hanging Protocols (iSite Radiology only)
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Preferences Dialog
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System Preferences
• System Preferences configure system-wide settings for every user
• System and Machine Preferences are associated with the Security
Codes ISTUSRPREF and ISTSUPPORT
• System Preferences are typically only accessible by administrators and
are not visible to standard users
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Importing and Exporting Preferences
• Importing and Exporting Preferences
• Many preference settings can be imported and exported to facilitate
setting up User and System Preferences
• The User Preferences that can be imported and exported are Window
Width/Center and Filters
• The System Preferences that can be imported and exported are
Window Width/Center, Filters, Annotation, DICOM Sources, Screen
Overlays, Paper Printing, Organization Dictionary, Location Dictionary
and Body Part Dictionary
• Please note that importing preferences will override any preferences in
the system
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Preferences Dialog
• Preferences can
be accessed by
selecting the ‘P’
icon in the upperright corner of the
iSite Control Strip
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General Preferences
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Logon Welcome Message
• The ‘Logon
welcome
message’ may be
configured with
help desk
information or may
be used to notify
users of scheduled
maintenance of
the system
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Logon Welcome Message
• The ‘Logon
welcome
message’ shown
at left is displayed
on the log-in page
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Image/Series Linking
• iSite System
Administrators can
set the number of
degrees to allow
for linking variance
• This determines if
a series can be
linked with another
series and this
variance is
configurable at a
site level
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Allow DICOM Query From Exam Timeline
• The ‘Allow DICOM
Query From Exam
Timeline’ option
permits users to
perform a DICOM
query from the
Exam Timeline if
the user has the
Security Code
ISTQUERY
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Allow Exams to be Marked Read More Than
Once
• The ‘Allow Exams
to be Marked
Read More Than
Once’ option
permits users to
“Mark Read”
exams which have
already been
marked as read
• The ‘Allow Exams
to be Marked
Read More Than
Once’ is useful for
over reads and
peer review
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Image Orientation
• The ‘Image
Orientation’ option
allows iSite
System
Administrators to
allow users to set
their own flipping
preferences for
Axial CTs or
always display
Axial and Oblique
CTs with the
anatomical right
on the left side of
the image window
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Image Orientation
• Please note that
the visibility of this
option is
dependent on the
System
Preferences set by
your institution's
iSite System
Administrator
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Image Orientation
• Users who wish to
automatically
display axial and
oblique CTs with the
anatomical right
displayed on the
left, regardless of
the initial orientation
of the image, may
select the
“Axial/Oblique
CT:…" box
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Window Width/Center
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Window Width/Center
• Users may select
the Window Width
and Center dialog
to add, modify or
delete the default
preset window
width and center
values display
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Window Width/Center
• The Add Window
Width/Center may
be used to create
new Window
Width/Center
presets by
establishing a
name, indicating
the Modality and
setting the Width
and Center
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Window Width/Center
• To edit a window
width and center
setting, “double
click” a listing or
highlight a listing
and click the
‘Properties’ button
• When you have
finished making
changes, click
‘Apply’ and then
‘OK’ to save and
exit the Dialog
box
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Window Width/Center
• Window
Width/Center
settings are
mapped to the
number keys in
the order
displayed here
and in the Context
Menu, so that
users may apply a
Window
Width/Center
setting easily
while viewing
images
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Image Processing
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Image Processing
• Edge Enhance: Uses a Laplacian method to increase the visibility of
edges in the image
• Edge Detection: Provides an alternative to the Edge Enhance tool,
using a Sobel operator to increase the visibility of edges
• Median Filtering: Uses a common filtering method to reduce noise in an
image
• CLAHE (Contrast Limited Adaptive Histogram Equalization): Uses an
adaptive form of histogram equalization that enhances the contrast
adaptively across the image
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Image Processing
• Image Processing
Filters have several
configurable
parameters which
may be configured
by each individual
user
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Image Processing
• Image Processing Filters can be
applied manually (via a right
mouse click option)
• Any time an Image Processing
Filter is applied to an image, iSite
displays a “P ” (Processed) Icon
in the meta data area of that
image
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Image Processing – Edge Enhance
• ‘Edge Enhance’ is
performed with a
Laplacian operator
to discriminate the
edges; the result is
scaled and added
back into the
original image data
• A 5 point or 9 point
operator may be
selected
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Image Processing – Edge Enhance
• The intensity of
‘Edge Enhance’ is
controlled by the
“degree” parameter
which can be
“Light”, “Medium”
or “Strong”
• Edge Enhance is
applicable to any
monochrome
image
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Image Processing – Edge Enhance
The image on the right side has the ‘Edge Enhance’ filter applied
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Image Processing – Edge Detect
• This class of
algorithm
accentuates the
rising and falling
components of
edges
• This is done with a
Sobel operator; the
result is scaled and
added back into
the original image
data
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Image Processing – Edge Detect
• The intensity of
‘Edge Detect’ is
controlled by the
“degree” parameter
which can be
“Light”, “Medium”
or “Strong”
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Image Processing – Edge Detect
The image on the right side has the ‘Edge Detect’ filter applied
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Image Processing – Median Filter
• ‘Median Filter’ is used
as a noise reduction
filter
• Neighborhoods
around each pixel are
sampled and the
central pixel is
replaced with the
median value of the
neighborhood
• A 3x3 or 5x5 filter
may be selected
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Image Processing – Median Filter
The image on the right side has the ‘Median Filter’ applied
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Image Processing - CLAHE
• Contrast Limited
Adaptive Histogram
Equalization
(CLAHE) is a variant
of histogram
equalization
• The drawback of the
general histogram
equalization method
is that the
computation is
performed across the
entire image
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Image Processing - CLAHE
• In medical images,
the local behavior of
the histogram can be
radically different
than either the global,
or non-local behavior
• This class of method
performs the
histogram
equalization on a
parameterized
region-by-region
basis and stitches the
results to prevent any
boundary edges
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Image Processing - CLAHE
• The following
parameters can be
set via the
“Preferences”
• Contextual Region
Dimension
• Number Of Bins
• Clip Limit
• Map Level
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Image Processing – CLAHE
The image on the right side has ‘CLAHE’ applied
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Filters
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Filters
• Filters allow you to
create custom
search criteria for
Worklists
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Filters
• Filters can be used
to create Reading
Worklists to meet
specific needs
• Exercise care in
creating filters so
exams are not
accidentally
excluded
• To create a filter
click ‘Add’
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Filters
• This screen allows
the user to generate
a filter
• Users are not
required to fill in all
the fields because
the default for an
empty field is ‘all’
• When you have
finished making
changes, click ‘Apply’
and then ‘OK’ to save
and exit the Dialog
box
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Filters
• The Filter shown will
provide a worklist
which includes:
–“CARDIAC”
subspecialty (as
defined in the
Exam Dictionary)
–Unread
–All Exam
Statuses
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Filters
• The Filter shown will
provide a worklist
which includes:
–“CR” and “DX”
(DR) images for
patients in
–“Critical Care”
Units
–For Body Part
“Chest”
–“Stat” priority
–“Unread Only”
–“Completed”
Exam Status
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Filters
• The Filter shown will
provide a worklist
which includes:
–“CR” and “DX”
(DR) images for
patients in
–“Outpatient” Units
–For Subspecialty
“BONE”
–“Non-Stat” priority
–All Exam
Statuses, except
“In Progress”
–For 30 Days
–Ordered by Dr.s
Smith, Jones, or
Davis
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Annotations
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Annotations
• Image annotations
may be added to
an exam to identify
key images or
regions of interest
• The ‘Annotations’
option allows the
iSite System
Administrator to
create, edit and
delete preset
annotations
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Annotations
• Select the ‘Add’
button to add new
image annotation
presets
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Annotations
• Provide a name,
which should be
the annotation
• Font styles and
sizes may be
selected
• Arrows may be
added for
emphasis
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Annotations
• The name of the
annotation is
displayed as an
annotation option
on the Context
Menu
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Annotations
• The annotation may
be resized or moved
within the image
window
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DICOM Sources
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DICOM Sources
• DICOM Sources
enable the
configuration of
default display
settings for
Window
Width/Level,
Series Splitting
and Sorting criteria
for a modality or a
group of
modalities with a
common
manufacturer or
model name, etc.
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DICOM Sources
• DICOM Sources
also allows you to
stack RF or XA
images
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DICOM Sources
• When adding a DICOM
source, the iSite System
Administrator should be
as specific as possible to
prevent “overlapping”
DICOM Sources
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DICOM Sources
• A warning message is
provided in the event of
duplicate DICOM Sources
to prevent “overlapping”
DICOM Sources names or
“overlapping” DICOM
Sources configurations
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DICOM Sources
• If two or more DICOM
sources are configured
with an equal number of
matching identifiers, then
the DICOM source
containing an Exam Code
will take precedence
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DICOM Sources
• In the Window/Center
tab, choose which
values to use for this
source
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DICOM Sources
• Histogram Calculation
– This is the default selection in the ‘Add DICOM Source’ dialog
– The histogram is a graph showing the total tonal distribution in the
image
– The histogram maps Luminance, which is defined from the way
human eye perceives the brightness of different colors
– Every pixel in the color or gray image computes to a luminance
value between 0 and 255. The histogram uses bins to graph the
pixel count of every possible value of luminance or brightness. The
total tonal range of a pixel’s 8 bit tone value is 0 to 255, where the 0
is the blackest at the left end and 255 is the whitest at the right end
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DICOM Sources
• DICOM Values
– DICOM Values are the Window Center and Window Width values
provided by the modality
– DICOM Sources utilizing DICOM Values should be configured for a
specific AE Title to ensure that images from other devices are not
impacted
– The DICOM modality values are stored in Window Center
(0028,1050) and Window Width (0028,1051) DICOM attributes
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DICOM Sources
• The Series
Splitting option
enables iSite
System
Administrators to
specify various
rules for splitting
series
• For example
creating separate
image windows for
monochrome
images versus
color images
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DICOM Sources
• The Sorting tab
allows the user to
specify the sorting
criteria for series
images
• After selecting the
details for the
DICOM source,
click ‘OK’ and then
‘Apply’ or ‘OK’
when you return to
the Preferences
Dialog in order for
the changes to be
preserved
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Screen Overlays
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Screen Overlays
• iSite System
Administrators can
configure the
information
overlays for
various modalities
• There are options
to specify where
various patient
and exam
information will be
displayed on the
image
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Screen Overlays
• To add an item,
click, drag and
drop the item into
the screen at left
• Items can be
removed by
dragging them out
of the overlay
window
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Screen Overlays
• When entering a
name for the new
overlay, note that
this name must
correspond to a
Modality Type
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Screen Overlays
• Image Number and
Series Number
may be added
utilizing the method
demonstrated in
the accompanying
image
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Screen Overlays
• Window Width and
Window Level may
be displayed
together using the
method
demonstrated in
the accompanying
image
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Paper Printing
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Paper Printing
• iSite allows you to
configure the way
in which exams
and images are
printed
• iSite System
Administrators can
create print
configurations that
users can select to
specify various
options
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Paper Printing
• For assistance in
configuring Paper
Printing, please
refer to the user
manual or contact
Customer Care
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iExport
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iExport
• iExport is the
mechanism by
which iSite exports
exams in DICOM
format to another
DICOM device,
such as a mass
CD Burner or 3D
imaging system
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iExport
• From this page,
DICOM forwarding
addresses can be
added and/or
edited
• iExport
destinations will be
visible in the
iExport dialog,
which can be
accessed via the
popup menu in the
worklists or from
the exam timelines
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iExport
• The AE Title, Host
IP and Port of the
remote device must
be obtained from
the device vendor
• The Query/Retrieve
service must be
supported by the
device and
supported values
must be obtained
from the device
vendor
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iQuery
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iQuery
• iQuery is the iSite
mechanism that
allows studies to
be imported into
the iSite Server for
viewing with iSite
• From this page,
archives from
which to pull
studies can be
added, edited or
deleted
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iQuery
• The AE Title, Host IP
and Port of the
remote device must
be obtained from the
device vendor
• The Query/Retrieve
service must be
supported by the
device and supported
values must be
obtained from the
device vendor
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Organization Dictionary
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Organization Dictionary
• The Organization
Dictionary lets you
specify the various
organizations
present in your
institution, if you
use ‘organization’
in your exam
records
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Organization Dictionary
• The listings are
then used for the
purposes of exam
searches
• The names in this
dictionary must
match the
organizations
listed in iSuite
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Location Dictionary
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Location Dictionary
• The Location
Dictionary allows
you to specify the
various locations
in the institution, if
‘location’ is a
mapped field from
external systems
• Locations must
match locations
mapped from
external systems
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Location Dictionary
• The Patient
Location Menu
may then be
utilized as search
criteria on the
Patient Directory
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Plug Ins
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Plug Ins
• Plug Ins
(Applications
Program Interface,
API) provide
enhanced feature
sets such as
advanced
workflow and
visualization to
users
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Plug In Dialog
• Choose a display
name for the Plug
Ins folder and then
set whether it will
be displayed in the
folder tree
• Plug Ins visible in
the Folder List are
visible to all users
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Plug In Dialog
• Enter the URL of
the Plug In
• Select enable in
either iSite
Radiology, iSite
Enterprise or both
• Please Note: Do
not deselect
‘Disable API’ prior
to contacting
Philips iSite Care
Center
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Plug In Dialog
• Users may require
specific Security
Codes to utilize
the Plug In if the
‘Requires Security
Code’ option is
enabled
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DICOM Print
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DICOM Print
• The DICOM Print
option controls the
printers to which
exams and images
will be printed
• You will need to
obtain information
and assistance
from the printer
vendor to properly
configure and
validate the print
settings
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DICOM Print
• Image Display Format,
FilmSize ID and Medium
Type must be supported
by the printer device and
supported values must be
obtained from the printer
vendor
• Min Density, Max Density
and Printer Configuration
values must be obtained
from the printer vendor to
ensure proper contrast
resolution
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DICOM Print
Warning: Considerations for Life-Size Printing
• For LifeSize Printing, the
correct Image Box Height
and Width settings must
be obtained from the
printer vendor
• Philips strongly
recommends validating
that the LifeSize print
option is indeed printing
life-sized images after
completing the
configuration
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DICOM Print
Warning: Considerations for Life-Size Printing
• When using iSite for
measurement or life-size
printing, Philips
recommends the use of
an appropriately placed
object of known size for
determining the
magnification factor
applied to the image
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DICOM Print
Warning: Considerations for Life-Size Printing
• For assistance in
configuring iSite for
DICOM Printing, please
refer to the user manual
or contact Customer Care
• Philips strongly
recommends validating
that the LifeSize print
option is indeed printing
life-sized images after
completing the
configuration
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Body Part Dictionary
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Body Part Dictionary
• iSite allows you to
configure the body
part dictionaries
that your institution
will be using in
conjunction with
various parts of
the program
• The body part
definitions can be
edited and
removed
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Body Part Dictionary
• Select ‘Body Part
Dictionary’ from
the ‘System
Preferences’ list
• Select ‘Add’ to
create a new
entry in the
dictionary; or
• Select
‘Properties’ to edit
an existing entry
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Edit Body Part Dictionary Dialog
• As illustrated at left, the body part
“head” is equivalent to “brain,”
“iac,” “orbits,” “sinus,” “skull”
• Additionally, the body parts listed
in the ‘Equivalents’ frame, are
equivalent to the body part
“Name” as well as all other
equivalents
• For example: “head” is not only
equivalent to “brain” but also
equivalent to “iac”
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Hanging Protocols
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Hanging Protocols
• The Hanging
Protocols
preference area
allows the user to
view the iSite
Radiology Hanging
Protocols and to
delete them if
necessary
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Hanging Protocols
• All of the Hanging
Protocol property
windows are ‘Read
Only’ and cannot
be edited from the
Preferences page
• Hanging Protocols
must be edited
from within the
Radiology canvas
page
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For assistance, please call customer support at
1-877-328-2808 or 1-877-328-2809
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