Материал: part03

Page 1181​

Attribute Name​

Tag​

Type​

Attribute Description​

Stimuli Retesting Quantity​

(0024,0042)​

Note​

An example is that the patient received 20 stimuli and​

blinked twice, therefore need to present the stimuli two​

additional times in which case the value is 2.​

Patient Reliability Indicator​

(0024,0069)​

Comments on Patient's​

(0024,0044)​

Performance of Visual Field​

Visual Field Test Reliability​

(0024,0317)​

Global Index Sequence​

>Include Table C.8.26.3-2 “Ophthalmic Visual Field Global Index​

Macro Attributes”​

Attribute Name​

Tag​

Type​

Attribute Description​

DataObservationSequence​

(0024,0325)​

1​

Information about various visual field global indexes.​

Only a single Item shall be included in this Sequence.​

>Include Table 10-2 “Content Item Macro Attributes Description”​

Value Type (0040,A040) shall be NUMERIC or CODE.​

Concept Name Code Sequence (0040,A043) shall use CID​

4257 “Visual Field Global Index Name”.​

Concept Code Sequence (0040,A168) shall use CID 4254​

“Visual Field Static Perimetry Test Analysis Results”.​

Index Normals Flag​

(0024,0338)​

1​

Whether normative data exists for this index.​

Enumerated Values:​

YES​

NO​

Index Probability Sequence​

(0024,0344)​

1C​

Probability value and software algorithm used to provide the​

index.​

Only a single Item shall be included in this Sequence.​

Required if Index Normals Flag (0024,0338) is YES.​

>Index Probability​

(0024,0341)​

1​

Probability for the index value within the normal population,​

in percent.​

Attribute Name​

Tag​

Type​

Attribute Description​

Measurement Laterality​

(0024,0113)​

1​

Laterality of body part (eye) examined.​

See Section C.8.26.4.1.1 for further explanation.​

Enumerated Values:​

R​right​

L​left​

B​both left and right together​

Note​

This Attribute is mandatory, in order to ensure that​

measurements may be positioned correctly relative to one​

another for display.​

Note​

Laterality (0020,0060) is a Series level Attribute and must​

be the same for all Measurements in the Series, hence it​

must be absent if multiple instances from different eyes are​

encoded.​

Presented Visual Stimuli Data​

(0024,0037)​

1​

Whether the device was able to determine presented visual stimuli.​

Flag​

Enumerated Values:​

YES​

NO​

Number of Visual Stimuli​

(0024,0038)​

1C​

The total number of visual stimuli presented to the patient. This​

includes the number of stimuli repetitions.​

Required if Presented Visual Stimuli Data Flag (0024,0037) is YES.​

Visual Field Test Duration​

(0024,0088)​

1​

Total time the visual field machine was actively presenting visual​

stimuli to patient, in seconds.​

Foveal Sensitivity Measured​

(0024,0086)​

1​

Whether foveal sensitivity was measured.​

Enumerated Values:​

YES​

NO​

Foveal Sensitivity​

(0024,0087)​

1C​

Foveal Sensitivity is the reciprocal of foveal threshold (1/foveal​

threshold), in dB.​

Foveal Threshold is the minimum amount of luminance increment on​

a uniform background that can be detected by the patient at​

coordinates 0,0 (relative to the center of the patient's fixation).​

See Section C.8.26.4.1.2 for further explanation.​

Required if the value for Foveal Sensitivity Measured (0024,0086) is​

YES.​

Foveal Point Normative Data​

(0024,0117)​

1​

Existence of normative data base for the foveal point sensitivity.​

Flag​

Enumerated Values:​

DICOM PS3.3 2020a - Information Object Definitions​

Page 1183​

Attribute Name​

Tag​

Type​

Foveal Point Probability Value​

(0024,0118)​

1C​

The percentile of the foveal point sensitivity within an age corrected​

Required if the value for Foveal Sensitivity Measured (0024,0086) is​

YES and Foveal Point Normative Data Flag (0024,0117) is YES.​

Screening Baseline Measured​

(0024,0120)​

1​

Whether visual field screening baseline was measured.​

Screening Baseline Measured​

(0024,0122)​

1C​

Information about the starting luminance screening values.​

Sequence​

Required if the value for Screening Baseline Measured (0024,0120)​

>Screening Baseline Type​

(0024,0124)​

1​

Method used to determine starting luminance screening values.​

>Screening Baseline Value​

(0024,0126)​

1​

Blind Spot Localized​

(0024,0106)​

1​

Blind Spot X-Coordinate​

(0024,0107)​

1C​

The horizontal coordinate of the patient's blind spot relative to the​

center of the patient's fixation, in degrees, such that toward the right​

Required if the value for Blind Spot Localized (0024,0106) is YES.​

Blind Spot Y-Coordinate​

(0024,0108)​

1C​

Theverticalcoordinateofthepatient'sblindspotrelativetothecenter​

of the patient fixation, in degrees, such that up is positive.​

Required if the value for Blind Spot Localized (0024,0106) is YES.​

Minimum Sensitivity Value​

(0024,0105)​

1​

The minimum sensitivity value generated by the equipment used for​

Test Point Normals Data Flag​

(0024,0057)​

1​

Existence of normative data base for at least one of the test points​

Test Point Normals Sequence​

(0024,0058)​

1C​

Required if Test Point Normals Data Flag (0024,0057) is YES.​

Page 1184​

Attribute Name​

Tag​

Type​

Attribute Description​

>IncludeTable10-22“Externally-SourcedDataSetIdentification​

Macro Attributes”​

Age Corrected Sensitivity​

(0024,0065)​

1C​

Software algorithm used to provide the probability that the age​

DeviationAlgorithmSequence​

corrected sensitivity deviation values at each test point belong to a​

normal visual field.​

Only a single Item shall be included in this Sequence.​

Required if Test Point Normals Data Flag (0024,0057) is YES.​

>IncludeTable10-19“AlgorithmIdentificationMacroAttributes”​

Generalized Defect Sensitivity​

(0024,0067)​

1C​

Software algorithm used to provide the probability that the sensitivity​

DeviationAlgorithmSequence​

deviation values at each test point belong to a normal visual field.​

Only a single Item shall be included in this Sequence.​

Required if Test Point Normals Data Flag (0024,0057) is YES.​

>IncludeTable10-19“AlgorithmIdentificationMacroAttributes”​

Visual Field Test Point​

(0024,0089)​

1​

Information for each test point in the visual field.​

Sequence​

One or more Items shall be included in this Sequence.​

>Visual Field Test Point​

(0024,0090)​

1​

The horizontal coordinate of a single test point relative to the center​

X-Coordinate​

ofthepatientfixation,indegrees,suchthattowardtherightispositive.​

>Visual Field Test Point​

(0024,0091)​

1​

The vertical coordinate of a single test point relative to the center of​

Y-Coordinate​

the patient fixation, in degrees, such that up is positive.​

>Stimulus Results​

(0024,0093)​

1​

Whether the patient saw a stimulus presented at a luminance other​

thanmaximum,apresentationatmaximumluminance,ordidnotsee​

any presented stimulus.​

Enumerated Values:​

SEEN​

stimulus seen at a luminance value less than​

maximum​

NOT SEEN​ stimulus not seen​

SEENATMAX​stimulus seen at the maximum luminance possible​

for the instrument​

Note​

SEEN AT MAX is a value only relevant to Screening tests.​

>Sensitivity Value​

(0024,0094)​

1C​

If Stimulus Results (0024,0093) is SEEN then this value is the​

sensitivity, in dB.​

Required if Content Item Modifier Sequence (0040,0441) within​

Performed Protocol Code Sequence (0040,0260) contains an Item​

with the value (261004008, SCT, "Diagnostic"). May be present​

otherwise.​

Note​

If this is not present, refer to the Attribute Minimum​

Sensitivity Value (0024,0105).​

>Retest Stimulus Seen​

(0024,0095)​

3​

Whether the retested stimulus presented was seen by the patient.​

Enumerated Values:​

DICOM PS3.3 2020a - Information Object Definitions​

Page 1185​

Attribute Name​

Tag​

Type​

>Retest Sensitivity Value​

(0024,0096)​

3​

If the Retest Stimulus Seen (0024,0095) is YES, then this value is​

If this is not present, refer to the Attribute Minimum​

>Quantified Defect​

(0024,0098)​

3​

Differencebetweentheexpectedandthedeterminedsensitivity,each​

This field is only useful when the sensitivity is quantified.​

Some examples include Test Strategy Code Sequence​

>Visual Field Test Point​

(0024,0097)​

2C​

Information about normal values for each visual field test point.​

Normals Sequence​

ZeroormoreItemsshallbeincludedinthisSequence.Maybeempty​

Required if Test Point Normals Data Flag (0024,0057) is YES.​

>>Age Corrected Sensitivity​

(0024,0092)​

1​

Differencebetweenthepatient'slocalsensitivityandtheagecorrected​

Deviation Value​

>>Age Corrected Sensitivity​

(0024,0100)​

1​

The percentile of the age corrected sensitivity deviation within the​

Deviation Probability Value​

>> Generalized Defect​

(0024,0102)​

1​

Whethergeneralizeddefectcorrecteddataareavailableforthispoint.​

CorrectedSensitivityDeviation​

Flag​

>>Generalized Defect​

(0024,0103)​

1C​

The age corrected sensitivity deviation after correction for the​

CorrectedSensitivityDeviation​

Generalized Defect, in dB. Generalized defect is proportional to the​

Value​

loss in sensitivity shared by all points in the visual field.​

Required if Generalized Defect Corrected Sensitivity Deviation Flag​

>>Generalized Defect​

(0024,0104)​

1C​

Thepercentileofthegeneralizeddefectcorrectedsensitivitydeviation​

CorrectedSensitivityDeviation​

Probability Value​

Required if Generalized Defect Corrected Sensitivity Deviation Flag​