DICOM PS3.3 2019b - Information Object Definitions

C.8.26.5 Visual Field Static Perimetry Test Results Module

Table C.8.26.5-1 defines the Attributes used to interpret the test results of a patient's visual field test.

Table C.8.26.5-1. Visual Field Static Perimetry Test Results Module Attributes

Attribute Name

Tag

Type

Attribute Description

Visual Field Mean Sensitivity

(0024,0070)

1C

Average sensitivity of the test points of the visual field, in dB.

Required if Content Item Modifier Sequence (0040,0441) within the Performed Protocol Code Sequence (0040,0260) contains an Item with the value (261004008, SCT, "Diagnostic"). May be present otherwise.

Visual Field Test Normals Flag

(0024,0063)

1

Whether normals exist for this patient's results.

Enumerated Values:

YES

NO

Results Normals Sequence

(0024,0064)

1C

Information that represents the statistically normal results for patients from a referenced data base.

Only a single Item shall be included in this Sequence.

Required if Visual Field Test Normals Flag (0024,0063) is YES.

>Include Table 10-22 “Externally-Sourced Data Set Identification Macro Attributes”

>Global Deviation from Normal

(0024,0066)

1

Weighted average deviation from the age corrected normal field, in dB.

>Global Deviation Probability Normals Flag

(0024,0059)

1

Whether normals exist for the global deviation probability.

Enumerated Values:

YES

NO

>Global Deviation Probability Sequence

(0024,0083)

1C

Probability value and software algorithm used to provide the normality for the global deviation.

Only a single Item shall be included in this Sequence.

Required if Global Deviation Probability Normals Flag (0024,0059) is YES.

>>Global Deviation Probability

(0024,0071)

1

The percentile of the Global Deviation from Normal (0024,0066) value within the normal population, in percent.0024

>>Include Table 10-19 “Algorithm Identification Macro Attributes”

>Localized Deviation From Normal

(0024,0068)

1

Weighted square root of loss variance, in dB.

>Local Deviation Probability Normals Flag

(0024,0072)

1

Whether normals exist for the local deviation probability.

Enumerated Values:

YES

NO

>Localized Deviation Probability Sequence

(0024,0085)

1C

Probability value and software algorithm used to provide the normality for the local deviation.

Only a single Item shall be included in this Sequence.

Required if Local Deviation Probability Normals Flag (0024,0072) is YES.

>>Localized Deviation Probability

(0024,0073)

1

The percentile of the Localized Deviation From Normal (0024,0068) value within the normal population, in percent.

>>Include Table 10-19 “Algorithm Identification Macro Attributes”

Short Term Fluctuation Calculated

(0024,0074)

1

Whether the short term fluctuation was calculated.

Enumerated Values:

YES

NO

Short Term Fluctuation

(0024,0075)

1C

Average deviation of sensitivity for the repeated test locations, in dB. This is used to determine the consistency of the patient's responses.

Required if Short Term Fluctuation Calculated (0024,0074) is YES.

Short Term Fluctuation Probability Calculated

(0024,0076)

1

Whether the short term fluctuation probability was calculated.

Enumerated Values:

YES

NO

Short Term Fluctuation Probability

(0024,0077)

1C

The percentile of the Short Term Fluctuation (0024,0075) value within the normal population, in percent.

Required if Short Term Fluctuation Probability Calculated (0024,0076) is YES.

Corrected Localized Deviation From Normal Calculated

(0024,0078)

1

Whether the corrected localized deviation from normal was calculated.

Enumerated Values:

YES

NO

Corrected Localized Deviation From Normal

(0024,0079)

1C

Weighted square root of loss variance corrected for short term fluctuation, in dB.

Required if Corrected Localized Deviation From Normal Calculated (0024,0078) is YES.

Corrected Localized Deviation From Normal Probability Calculated

(0024,0080)

1

Whether the corrected localized deviation from Normal probability was calculated.

Enumerated Values:

YES

NO

Corrected Localized Deviation From Normal Probability

(0024,0081)

1C

The percentile of the Corrected Localized Deviation From Normal (0024,0079) value within the normal population, in percent.

Required if Corrected Localized Deviation From Normal Probability Calculated (0024,0080) is YES.

Visual Field Global Results Index Sequence

(0024,0320)

3

Information about various visual field indexes related to test results.

One or more Items are permitted in this Sequence.

>Include Table C.8.26.3-2 “Ophthalmic Visual Field Global Index Macro Attributes”


DICOM PS3.3 2019b - Information Object Definitions