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Filters are used in many places in OnePacs for the purpose of selecting studies that meet certain criteria. (They are processed similar to database SQL query strings) Filters are created through a common interface, which appears as follows:

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The user has the option of either creating a filter through use of the GUI-based elements at the top portion of the screen, that is, through the selection of Facilities, modalities, study description, date, and other criteria, or though use of the “Advanced Expression” text edit box at the bottom, into which a OnePacs query string can be entered. Additionally, the “Filter string” button at the bottom of the window generates the text value of the filter string generated through use of the GUI elements and allows the user to copy that string

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Limiting user access to cases. For example, a filter can be applied to a user account to restrict a user to only see cases for which their name is listed as the referring physician in the DICOM data. This may be useful for creating accounts to give to clinicians, so that they may only view their own patients. Examples of how to apply filters to limit users' access to studies are provided here.
Determining which studies will be pre-fetched by the OnePacs workstation software
Determining which studies will be automatically placed into study folders as they arrive to OnePacs
Quickly finding a case on the worklist
Setting up which cases will send out case notifications
Setting up which cases will be automatically assigned to interpreting physicians.

Sample Advanced Filters

Function	Filter string	Notes
Select all series with a workflow status of “Ready to read”, “Assigned”, or “In transmission” to the local workstation, which have completed transmission to OnePacs, which have 900 or fewer images, and which are assigned to the current user. This is the default download filter for the OnePacs Study Retriever.	StudyStatusID in ('READY_TO_READ', 'ASSIGNED', 'IN_TRANSMIT') and age(CreatedTime) < '3d') and numberOfSeriesRelatedInstances < '1200' and assignedToUser = '$USER'
Limit studies to those for whom the DICOM referring physician name field contains SCHWARZ, in all upper case letters	referringPhysicianName like '%SCHWARZ%'	Useful for a user’s access filter, in this case, to limit a referring physician named Schwarz to viewing reports only for patients s/he referred
Limit studies to those for whom the referring physician name field contains “Schwarz”, regardless of upper/lower case	referringPhysicianName contains 'schwarz'
Study date within the past 3 days (72 hours)	age(createdTime) < '3d'
Select studies from one of three facilities (identified by the Gateway’s AE title)	callingAETitle in ('A', ‘B', C’)
Select studies for minors	patientAge < '18y'
Patient DOB is empty	( patientBirthDate is null or patientBirthDate = '' )

Keywords available for use in filters

Level	Keyword	Description	Type	DICOM Tag	Notes
patient	patientName	Patient Name in DICOM format.	string	(0010,0010)
-	patientId	Patient Id	string	(0010,0020)
-	patientBirthDate	Patient Birth Date	string	(0010,0030)
-	patientSex	Patient Sex	string	(0010,0040)
study	accessionNumber	Study accession number	string	(0008,0050)
-	facilityPk	Identifier for the OnePacs facility the study was stored to	integer	N/A
-	studyIuid	Study Uid	string	(0020,000D)
-	referringPhysicianName	Referring physician name in DICOM format.	string	(0008,0090)
-	physicianNames	Referring physician name AND ordering physician name	string	(0008,0090)	plus the ordering physician specified during the confirmation process
-	studyDescription	Study Description	string	(0008,1030)
-	bodyPartsInStudy	Body Parts	string	(0018,0015)	An aggregation of the series-level bodyPartExamined. It is recommend that queries for body part search on this study-level value for most use cases.
-	studyId	Study Id	string	(0020,0010)
-	studyDateTime	Study Performed Date	date	(0008,0020)
-	normalizedStudyDateTime	Study Performed Date	date	(0008,0020)	Normalized to user's time zone
-	createdTime	Time the study was sent to OnePacs.	date	N/A
-	receivedTime	Time

study received

the study was recieved by OnePacs.	date	N/A
-	confirmationTime	The time the study was confirmed in OnePacs.	date

NA

N/A
-	modalitiesInStudy	List of all modalities in the study separated by a slash (”/”)	string	(0008,0060)
-	studyStatusId	Study State	string

NA

N/A	Enumerated values of IN_TRANSMIT, READY_TO_READ, ASSIGNED, READ, DISREGARD, FOR_COMPARISON, DICTATED, TRANSCRIBED
-	numberOfStudyRelatedInstances	Number of instances in the study	string	(0020,1208)
-	numberOfStudyRelatedSeries	Number of series in the study	number	(0020,1206)
-	patientAge	The age of the patient at time of study in years	string	(0010,1010)	May be calculated from DOB and study date. Ex: 17y
-	patientInstitutionResidence	The patient's institution residence at the time of study	string	(0038,0400)
-	assignedToUser	The username that the study is presently assigned to	string

NA

N/A	May be null if unassigned
-	uploadedBy	The

username

OnePacs user id that manually updated the study

string

NA

N/A	May be null

if unassigned

the study was not manually uploaded via the web interface.
-	institutionName	Institution name from DICOM header	string	(0008,0080)	Hint: Consider using Source AE to filter by Gateway
-	statStatus	The stat status of the study.	string

NA

N/A	Enumerated values of STAT, SUPER_STAT (critical). To search for non-routine cases use "statStatus is not null"
-	deadlineTIme	The deadline time of the study.

string

date

NA

N/A

Study

warning

target/deadline times are configured at the facility level based on priority designation, turn-around-time configuration, and the received/confirmation time of the study. Only unreported studies requiring interpretation will have a

warning

target / deadline time.
target / deadline time.	-	warnTIme	The warning/target time of the study.	date

NA

N/A
-	sizeOnDisk	The size of the study in bytes	number

NA

N/A	A sum of all the DICOM images in the study in present transfer syntax. Does not include further reduction from zipping. Includes duplicates.
-	hasAddenda	The study has a clinical addenda	boolean

NA

N/A
-	requiresResultsReporting	The study requires results reporting	boolean

NA

N/A

-

studyConfirmation

Whether or not the study has been confirmed for interpretation in OnePacs

integer

N/A

(studyConfirmation is null) will be TRUE when the study has not been confirmed

(studyConfirmation is not null) will be TRUE when the study has been confirmed

-

flagStatus

Whether or not certain flags are set for the study

enum

N/A

Values include NONE, RED, BLUE, RED_BLUE, GREEN, RED_GREEN, BLUE_GREEN, RED_BLUE_GREEN

Example to identify studies with green flags:

Code Block
flagState in ('GREEN', 'BLUE_GREEN', 'RED_GREEN', 'RED_BLUE_GREEN')

series

bodyPartExamined

Body Part

string

(0018,0015)

Use the study level bodyPartsInStudy unless explicitly trying to exclude individual series in study retriever queries.

-

modality

Modality

string

(0008,0060)

-

seriesIuid

Series Uid

string

(0020,000E)

-

numberOfSeriesRelatedInstances

Number of series instances

number

(0020,1209)

-

laterality

Laterality

string

(0020,0060)

-

stationName

Station Name

string

(0008,1010)

-

institutionalDepartmentName

Department Name

string

(0008,1040)

-

seriesSize

The size of the series in bytes

number

integer

NA

N/A	A sum of all the DICOM images in the series in present transfer syntax. Does not include further reduction from zipping. Includes duplicates.
facility	facilityName	The name of the source facility.	string

NA

N/A
-	facilityState	The State code of the source facility.	string

NA

N/A
-	facilityId	The ID of the study's facility.	string

NA

N/A
report	reportCompletedTime	The time the primary report was completed.	date

NA

N/A
-	primaryReportReadType	The read type of the primary report	string

NA

N/A	Enumerated values of PRELIMINARY, FINAL, OTHER

Logical operators available for use in filters

Comparison	Character
Equal	=
Not Equal	<> or !=
Less Than	<
Less Than Or Equal	⇐
Greater Than	>
Greater Than Or Equal	>=
contains ABCD	like ‘%ABCD%’(note the single quotes)
contains Abcd (case insensitive)	contains ‘ABCD’
starts with Abcd (case insensitive)	startswith ‘ABCD’
ends with Abcd (case insensitive)	endswith ‘ABCD’
not contains Abcd (case insensitive)	not contains ‘ABCD’
not starts with Abcd (case insensitive)	not startswith ‘ABCD’
not ends with Abcd (case insensitive)	not endswith ‘ABCD’
Wildcard	%
Comparison Grouping	()
And	and
Or	or
null	is null
not null	is not null

Functions available for use in filters

Function	Purpose	Usage example
property in (list)	Property value is included in a list of values	callingAETitle in ('A', ‘B', C’)
property not in (list)	Property value is not included in a list of values	callingAETitle not in ('A', ‘B', C’)
upper(property)	Convert property value to all uppercase (for the purpose of making case-insensitive comparisons)	upper(studyDescription) = ‘ABCD’
age(property)	Returns the amount of time that has elapsed since a given time interval ('3d' for 3 days, '2h' for 2 hours, '10m' for 10 minutes, etc)	age(CreatedTime) < '3d' to yield studies less than 72 hours old
timeOfDay(property)	Returns the time of day for a temporal propery name in format HH:MM [(timezone)]. Timezone is optional, defaults to ET	timeOfDay(createdTime) >= '9:00 (EST)' to filter by studies created after 9am EST
dayOfWeek(property)	Returns the day of week 1-7 [(timezone)] where 1=Monday, 7=Sunday. Timezone is optional, defaults to ET	dayOfWeek(createdTime) <= '5(EST)' to filter on cases created Monday - Friday

Using filters to limit users' access to studies

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Key

Sample Advanced Filters

Keywords available for use in filters

Logical operators available for use in filters

Functions available for use in filters

Using filters to limit users' access to studies