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DICOM PS3.3 2020a - Information Object Definitions​ Page 1141​

Table C.8.24.5-1. Excluded Intervals Module Attributes​

Attribute Name​

Tag​

 

 

 

Type​

 

 

 

Attribute Description​

Excluded Intervals Sequence​

(0018,9803)​

 

 

 

1C​

List of excluded intervals.​

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

Required if one or more intervals was excluded.​

>Exclusion Start DateTime​

(0018,9804)​

 

 

 

 

1​

Time-pointoftheexclusionstartinthesameSynchronization​

 

 

 

 

 

 

 

 

Frame of Reference as Acquisition DateTime (0008,002A).​

>Exclusion Duration​

(0018,9805)​

 

 

 

 

1​

Duration of the exclusion in ms.​

 

Patient preparation

 

 

 

 

 

 

 

 

 

 

 

 

time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Scanner Adjustment to Patient

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Acquisition DateTime (0008,002A)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Acquisition Duration (0018,9073)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exclusion Start DateTime (0018,9804)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exclusion Duration (0018,9805)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure C.8.24.5-1. Relationship of Timing Related Attributes​

C.8.24.6 Enhanced US Volume Functional Group Macros​

The following sections contain Functional Group Macros specific to the Enhanced US Volume IOD.​

Note​

The Attribute descriptions in the Functional Group Macros are written as if they were applicable to a single frame (i.e., the​ Macro is part of the Per-frame Functional Groups Sequence). If an Attribute is applicable to all frames (i.e., the Macro is part​ of the Shared Functional Groups Sequence) the phrase "this frame" in the Attribute description shall be interpreted to mean​ " for all frames".​

C.8.24.6.1 US Image Description Macro​

Table C.8.24.6.1-1 specifies the Attributes of the US Image Description Functional Group Macro.​

Table C.8.24.6.1-1. US Image Description Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

US Image Description​

(0018,9806)​

1​ ASequencethatdescribesageneraldescriptionofthisimageorframe.​

Sequence​

 

 

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

 

 

 

>Frame Type​

(0008,9007)​

1​ Type of Frame. A multi-valued Attribute analogous to Image Type​

 

 

 

(0008,0008).​

Enumerated Values and Defined Terms are the same as those for the​ four values of Image Type (0008,0008), except that the value MIXED​ is not allowed. See Section C.8.24.3.2.​

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Page 1142​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Volumetric Properties​

(0008,9206)​

1​

Indication if geometric manipulations are possible with frames in the​

 

 

 

SOP Instance.​

 

 

 

See Section C.8.16.2.1.2 for a description and Enumerated Values.​

>Volume Based Calculation​

(0008,9207)​

1​

MethodusedforvolumecalculationswithframesintheSOPInstance.​

Technique​

 

 

See Section C.8.16.2.1.3 for a description and Defined Terms.​

 

 

 

If Volumetric Properties (0008,9206) is VOLUME and Volume Based Calculation Technique (0008,9207) is NONE, all frames in the​ frame set shall be spaced the same Z-distance from adjacent frames (i.e., spacing between slices is constant).​

C.8.25 Ophthalmic Refractive Measurements Modules​

C.8.25.1 Lensometry Measurements Series Module​

The Lensometry Measurements IODs use the General Series Module, specialized by the Lensometry Measurements Series Module,​ todescribetheDICOMSeriesEntitydescribedinSectionA.1.2.3,andtodefinewhatconstitutesaSeriesforthecontextofOphthalmic​ device.​

Table C.8.25.1-1 specifies the Attributes that identify and describe general information about the Lensometry Measurements Series.​

Table C.8.25.1-1. Lensometry Measurements Series Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Modality​

(0008,0060)​

1​

Type of equipment that originally acquired the data used to​

 

 

 

create the images in this Series.​

 

 

 

Enumerated Values:​

 

 

 

LEN​

 

 

 

See Section C.7.3.1.1.1 for further explanation.​

Referenced Performed​

(0008,1111)​

1C​

Uniquely identifies the Performed Procedure Step SOP​

Procedure Step Sequence​

 

 

Instance to which the Series is related.​

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

Required if a Performed Procedure Step SOP Class was​ involved in the creation of this Series.​

>Include Table 10-11 “SOP Instance Reference Macro Attributes”​

C.8.25.2 Autorefraction Measurements Series Module​

The Autorefraction Measurements IODs use the General Series Module, specialized by the Autorefraction Measurements Series​ Module, to describe the DICOM Series Entity described in Section A.1.2.3, and to define what constitutes a Series for the context of​ Ophthalmic device.​

TableC.8.25.2-1specifiestheAttributesthatidentifyanddescribegeneralinformationabouttheAutorefractionMeasurementsSeries.​

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DICOM PS3.3 2020a - Information Object Definitions​ Page 1143​

Table C.8.25.2-1. Autorefraction Measurements Series Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Modality​

(0008,0060)​

1​

Type of equipment that originally acquired the data used to​

 

 

 

create the images in this Series.​

 

 

 

Enumerated Values:​

 

 

 

AR​

 

 

 

See Section C.7.3.1.1.1 for further explanation.​

Referenced Performed​

(0008,1111)​

1C​

Uniquely identifies the Performed Procedure Step SOP​

Procedure Step Sequence​

 

 

Instance to which the Series is related.​

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

Required if a Performed Procedure Step SOP Class was​ involved in the creation of this Series.​

>Include Table 10-11 “SOP Instance Reference Macro Attributes”​

C.8.25.3 Keratometry Measurements Series Module​

TheKeratometryMeasurementsIODsusetheGeneralSeriesModule,specializedbytheKeratometryMeasurementsSeriesModule,​ todescribetheDICOMSeriesEntitydescribedinSectionA.1.2.3,andtodefinewhatconstitutesaSeriesforthecontextofOphthalmic​ device.​

Table C.8.25.3-1 specifies the Attributes that identify and describe general information about the Keratometry Measurements Series.​

Table C.8.25.3-1. Keratometry Measurements Series Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Modality​

(0008,0060)​

1​

Type of equipment that originally acquired the data used to​

 

 

 

create the images in this Series.​

 

 

 

Enumerated Values:​

 

 

 

KER​

 

 

 

See Section C.7.3.1.1.1 for further explanation.​

Referenced Performed​

(0008,1111)​

1C​

Uniquely identifies the Performed Procedure Step SOP​

Procedure Step Sequence​

 

 

Instance to which the Series is related.​

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

Required if a Performed Procedure Step SOP Class was​ involved in the creation of this Series.​

>Include Table 10-11 “SOP Instance Reference Macro Attributes”​

C.8.25.4 Subjective Refraction Measurements Series Module​

TheSubjectiveRefractionMeasurementsIODsusetheGeneralSeriesModule,specializedbytheSubjectiveRefractionMeasurements​ Series Module, to describe the DICOM Series Entity described in Section A.1.2.3, and to define what constitutes a Series for the​ context of Ophthalmic device.​

TableC.8.25.4-1specifiestheAttributesthatidentifyanddescribegeneralinformationabouttheSubjectiveRefractionMeasurements​

Series.​

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Page 1144​ DICOM PS3.3 2020a - Information Object Definitions​

Table C.8.25.4-1. Subjective Refraction Measurements Series Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Modality​

(0008,0060)​

1​

Type of equipment that originally acquired the data used to​

 

 

 

create the images in this Series.​

 

 

 

Enumerated Values:​

 

 

 

SRF​

 

 

 

See Section C.7.3.1.1.1 for further explanation.​

Referenced Performed​

(0008,1111)​

1C​

Uniquely identifies the Performed Procedure Step SOP​

Procedure Step Sequence​

 

 

Instance to which the Series is related.​

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

Required if a Performed Procedure Step SOP Class was​ involved in the creation of this Series.​

>Include Table 10-11 “SOP Instance Reference Macro Attributes”​

C.8.25.5 Visual Acuity Measurements Series Module​

TheVisualAcuityMeasurementsIODsusetheGeneralSeriesModule,specializedbytheVisualAcuityMeasurementsSeriesModule,​ todescribetheDICOMSeriesEntitydescribedinSectionA.1.2.3,andtodefinewhatconstitutesaSeriesforthecontextofOphthalmic​ device.​

Table C.8.25.5-1 specifies the Attributes that identify and describe general information about the Visual Acuity Measurements Series.​

Table C.8.25.5-1. Visual Acuity Measurements Series Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Modality​

(0008,0060)​

1​

Type of equipment that originally acquired the data used to​

 

 

 

create the images in this Series.​

 

 

 

Enumerated Values:​

 

 

 

VA​

 

 

 

See Section C.7.3.1.1.1 for further explanation.​

Referenced Performed​

(0008,1111)​

1C​

Uniquely identifies the Performed Procedure Step SOP​

Procedure Step Sequence​

 

 

Instance to which the Series is related.​

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

Required if a Performed Procedure Step SOP Class was​ involved in the creation of this Series.​

>Include Table 10-11 “SOP Instance Reference Macro Attributes”​

C.8.25.6 General Ophthalmic Refractive Macros​

C.8.25.6.1 Cylinder Sequence Macro​

Table C.8.25.6.1-1 describes the Attributes for the Cylinder Sequence Macro​

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DICOM PS3.3 2020a - Information Object Definitions​ Page 1145​

Table C.8.25.6.1-1. Cylinder Sequence Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Cylinder Sequence​

(0046,0018)​

1C​

A Sequence that specifies lens measurements to correct for astigmatism​

 

 

 

or measurements of an eye that has astigmatism.​

 

 

 

Required if astigmatic correction or astigmatism is measured.​

 

 

 

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

 

 

 

Note​

 

 

 

When astigmatism is present the power is NOT the same in all​

 

 

 

meridians,buthasitsminimumandmaximumpowerinmeridians​

 

 

 

separated by 90 degrees.​

>Cylinder Power​

(0046,0147)​

1​

The power that is present at the power meridian (90 degrees from the​

 

 

 

axis), in diopters.​

>Cylinder Axis​

(0022,0009)​

1​

The meridian, defined in degrees, that is 90 degrees from the power​

 

 

 

meridian.​

C.8.25.6.2 Prism Sequence Macro​

Table C.8.25.6.2-1 describes the Attributes for the Prism Sequence Macro​

Table C.8.25.6.2-1. Prism Sequence Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Prism Sequence​

(0046,0028)​

1C​

A Sequence that specifies prism that is measured in a lens, or that is​

 

 

 

required to correct for a patient's ocular misalignment.​

 

 

 

Required if prism is measured in the lens or if this part of a refraction​

 

 

 

is done for a patient.​

 

 

 

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

 

 

 

Note​

 

 

 

A prism is a wedge shaped lens that deviates light toward the​

 

 

 

base and shifts the apparent image toward its apex.​

>Horizontal Prism Power​

(0046,0030)​

1​

The power of a prism to bend light in the horizontal direction, in prism​

 

 

 

diopters.​

>Horizontal Prism Base​

(0046,0032)​

1​

Direction of the base of the measured prism -- either in (toward the​

 

 

 

nose), or out (away from the nose)​

 

 

 

Enumerated Values:​

 

 

 

IN​

 

 

 

OUT​

>Vertical Prism Power​

(0046,0034)​

1​

The power of a prism to bend light in the vertical direction, in prism​

 

 

 

diopters.​

>Vertical Prism Base​

(0046,0036)​

1​

Direction of the base of the measured prism -- either up, or down.​

 

 

 

Enumerated Values:​

UP​

DOWN​

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