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DICOM PS3.3 2020a - Information Object Definitions​

Page 1161​

•​TheAttributeReferencedInstanceSequence(0008,114A)isconveyedandonlyasingleItemisused.TheIteminReferencedInstance​ Sequence (0008,114A) contains the value "1.2.840.10008.5.1.4.1.1.78.7" = (this SOP Class) for Attribute Referenced SOP Class​ UID (0008,1150) and Attribute Referenced SOP Instance UID (0008,1155) will reference this measurement SOP Instance.​

•​Burned In Annotation (0028,0301) is set to NO.​

The Attribute Burned In Annotation (0028,0301) defines whether patient demographics have been burned into the image. This At-​ tribute does not prohibit non-demographic burned in annotation, such as position of gates, for image or waveform annotations that​ are very important to a user. Such annotations are expected to be conveyed and displayed.​

•​Quality Control Image (0028,0300) is set to YES.​

C.8.25.14.2 Ophthalmic Axial Length Segmental Measurements Macro​

Table C.8.25.14-3 describes the Attributes for the Ophthalmic Axial Length Segmental Measurements Macro.​

Table C.8.25.14-3. Ophthalmic Axial Length Segmental Measurements Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Ophthalmic Axial Length​

(0022,1019)​

1​

The axial length measurement, in mm.​

 

 

 

The type of measurement is specified in the Ophthalmic​

 

 

 

Axial Length Measurements Type (0022,1010).​

 

 

 

SeeSectionC.8.25.14.1.1.3andSectionC.8.25.14.1.1.4​

 

 

 

for further explanation.​

Ophthalmic Axial Length​

(0022,1140)​

1​

Whether or not the clinician intervened to modify the​

Measurement Modified​

 

 

output of the device. For example by forcing it to select​

 

 

 

a different peak in the display.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

Ophthalmic Axial Length​

(0022,1101)​

1​

The name of the segment measured. See​

Measurements Segment Name​

 

 

Section C.8.25.14.1.1.4 for further explanation.​

Code Sequence​

 

 

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

 

 

 

>Include Table 8.8-1 “Code Sequence Macro Attributes”​

 

DCID 4233 “Ophthalmic Axial Length Measurements​

 

 

 

Segment Names”​

Include Table C.8.25.14-4 “Ophthalmic Axial Measurements Related​

Information Macro Attributes”​

C.8.25.14.3 Ophthalmic Axial Measurements Related Information Macro​

Table C.8.25.14-4 describes the Attributes for the Ophthalmic Axial Measurements Related Information Macro.​

Table C.8.25.14-4. Ophthalmic Axial Measurements Related Information Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Ultrasound Ophthalmic Axial​

(0022,1220)​

1C​

Relatedinformationaboutanaxiallengthmeasurementbeing​

Length Measurements Sequence​

 

 

performed on an ultrasound device.​

 

 

 

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

 

 

 

Required if Ophthalmic Axial Measurements Device Type​

 

 

 

(0022,1009) is ULTRASOUND.​

- Standard -​

Page 1162​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Ophthalmic Axial Length Velocity​

(0022,1059)​

1​

The sound velocity used in calculating the Ophthalmic Axial​

 

 

 

Length Measurement Value (0022,1019), in m/sec.​

>Observer Type​

(0040,A084)​

1​

Method used to select which acquired axial length​

 

 

 

measurement values are kept.​

 

 

 

Enumerated Values:​

 

 

 

PSN​Person; manually selected​

 

 

 

DEV​Device; automatically selected​

 

 

 

See Section C.8.25.14.1.1.5 for further explanation.​

>Ophthalmic Axial Length Data​

(0022,1150)​

1​

Source of the value recorded in Ophthalmic Axial Length​

Source Code Sequence​

 

 

(0022,1019).​

 

 

 

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

>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

 

DCID 4240 “Ophthalmic Measurement or Calculation Data​

 

 

 

Source”​

>Ophthalmic Axial Length Data​

(0022,1159)​

3​

A free text description of the axial length measurement data​

Source Description​

 

 

source.​

Optical Ophthalmic Axial Length​

(0022,1225)​

1C​

Relatedinformationaboutanaxiallengthmeasurementbeing​

Measurements Sequence​

 

 

performed on an optical device.​

 

 

 

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

 

 

 

Required if Ophthalmic Axial Measurements Device Type​

 

 

 

(0022,1009) is OPTICAL.​

>Signal to Noise Ratio​

(0022,1155)​

3​

The ratio of signal power to the background noise power​

 

 

 

(Psignal / Pnoise).​

>Ophthalmic Axial Length Data​

(0022,1150)​

1​

The source of the value in Ophthalmic Axial Length​

Source Code Sequence​

 

 

(0022,1019).​

 

 

 

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

>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

 

DCID 4240 “Ophthalmic Measurement or Calculation Data​

 

 

 

Source”​

>Ophthalmic Axial Length Data​

(0022,1159)​

3​

A free text description of the axial length measurement data​

Source Description​

 

 

source.​

C.8.25.14.4 Ophthalmic Axial Measurements Selected Macro​

Table C.8.25.14-5 describes the Attributes for the Ophthalmic Axial Measurements Selected Macro. These are the Attributes of the​ Ophthalmic Axial Length (0022,1019) selected for use in IOL calculations.​

Table C.8.25.14-5. Ophthalmic Axial Measurements Selected Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

UltrasoundSelectedOphthalmic​

(0022,1230)​

1C​

Information related to the selected axial length measurement​

Axial Length Sequence​

 

 

of the patient's eye when acquired on an ultrasound device.​

 

 

 

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

 

 

 

Required if Ophthalmic Axial Measurements Device Type​

 

 

 

(0022,1009) is ULTRASOUND.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1163​

Attribute Name​

Tag​

Type​

Attribute Description​

 

>Ophthalmic Axial Length​

(0022,1010)​

3​

Identifies whether measuring the total axial length of the​

Measurements Type​

 

 

patient's eye or a segment of the eye for which a discrete​

 

 

 

measurement was obtained.​

 

 

 

 

Enumerated Values:​

 

 

 

 

 

TOTAL LENGTH​

the total axial length was taken with​

 

 

 

 

one measurement​

 

 

 

 

LENGTH​

the total axial length is a summation​

 

 

 

SUMMATION​

of segmental lengths​

 

>Ophthalmic Axial Length​

(0022,1019)​

1​

The axial length measurement, in mm.​

 

 

 

 

The type of measurement is specified in the Ophthalmic Axial​

 

 

 

Length Measurements Type (0022,1010).​

 

 

 

 

See Section C.8.25.14.1.1.4 for further explanation.​

>Ophthalmic Axial Length​

(0022,1250)​

1​

Method used to derive the value recorded in Ophthalmic Axial​

Selection Method Code​

 

 

Length (0022,1019).​

 

 

Sequence​

 

 

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

 

 

 

>>Include Table 8.8-1 “Code Sequence Macro Attributes”. Defined​

 

 

 

CID 4241 “Ophthalmic Axial Length Selection Method”.​

 

 

 

 

>Referenced Ophthalmic Axial​

(0022,1330)​

1​

References to the quality control image associated with this​

LengthMeasurementQCImage​

 

 

measurement.​

 

 

Sequence​

 

 

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

 

 

 

 

 

 

See Section C.8.25.14.1.1.6 for further explanation.​

>>IncludeTableC.8.25.16-6“OphthalmicAxialMeasurementsQuality​

 

 

Image SOP Instance Reference Macro Attributes”​

 

 

 

 

>Ophthalmic Axial Length​

(0022,1262)​

1​

Information about the quality metric applied to Ophthalmic​

Quality Metric Sequence​

 

 

Axial Length (0022,1019).​

 

 

 

 

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

>>Include Table C.8.25.14-6 “Ophthalmic Axial Length Quality Metric​

 

 

Macro Attributes”​

 

 

 

 

 

>Selected Segmental​

(0022,1257)​

1C​

Segmental axial length measurements of a patient's eye that​

Ophthalmic Axial Length​

 

 

are summed to derive a total axial length for the eye.​

Sequence​

 

 

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

 

 

 

 

 

 

Required if the value of Ophthalmic Axial Length​

 

 

 

Measurements Type (0022,1010) is present and is LENGTH​

 

 

 

SUMMATION. May be present otherwise.​

 

>>Ophthalmic Axial Length​

(0022,1019)​

1​

The axial length measurement, in mm.​

 

 

 

 

The type of measurement is specified in the Ophthalmic Axial​

 

 

 

Length Measurements Type (0022,1010).​

 

 

 

 

See Section C.8.25.14.1.1.3 and Section C.8.25.14.1.1.4 for​

 

 

 

further explanation.​

 

 

>>Ophthalmic Axial Length​

(0022,1101)​

1​

Nameofthesegmentmeasured.SeeSectionC.8.25.14.1.1.4​

Measurements Segment Name​

 

 

for further explanation.​

 

Code Sequence​

 

 

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

 

 

 

- Standard -​

Page 1164​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

DCID4233“OphthalmicAxialLengthMeasurementsSegment​

 

 

 

Names”​

 

Optical Selected Ophthalmic​

(0022,1255)​

1C​

Informationrelatedtotheselectedaxiallengthmeasurement(s)​

Axial Length Sequence​

 

 

of the patient's eye when acquired on an optical device.​

 

 

 

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

 

 

 

Required if Ophthalmic Axial Measurements Device Type​

 

 

 

(0022,1009) is OPTICAL.​

>Ophthalmic Axial Length​

(0022,1010)​

3​

Identifies whether measuring the total axial length of the​

Measurements Type​

 

 

patient's eye or a segment of the eye for which a discrete​

 

 

 

measurement was obtained.​

 

 

 

Enumerated Values:​

 

 

 

 

TOTAL LENGTH​

the total axial length was taken with​

 

 

 

 

one measurement​

 

 

 

LENGTH​

the total axial length is a summation​

 

 

 

SUMMATION​

of segmental lengths​

 

 

 

SEGMENTAL​

the length of a segment of the axis​

 

 

 

LENGTH​

 

>Selected Total Ophthalmic​

(0022,1260)​

1C​

Total axial length measurement selected for the patient's eye.​

Axial Length Sequence​

 

 

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

 

 

 

 

 

 

Required if the value of Ophthalmic Axial Length​

 

 

 

Measurements Type (0022,1010) is present and is either​

 

 

 

TOTAL LENGTH or LENGTH SUMMATION. May be present​

 

 

 

otherwise​

 

 

 

 

Note​

 

 

 

 

In case of Ophthalmic Axial Length Measurements​

 

 

 

Type (0022,1010) has the value LENGTH​

 

 

 

SUMMATION both the Selected Total Ophthalmic​

 

 

 

Axial Length Sequence (0022,1260) and Selected​

 

 

 

Segmental Ophthalmic Axial Length Sequence​

 

 

 

(0022,1257) are used.​

>>Ophthalmic Axial Length​

(0022,1019)​

1​

The axial length measurement, in mm.​

 

 

 

The type of measurement is specified in the Ophthalmic Axial​

 

 

 

Length Measurements Type (0022,1010).​

 

 

 

See Section C.8.25.14.1.1.3 and Section C.8.25.14.1.1.4 for​

 

 

 

further explanation.​

 

>>ReferencedOphthalmicAxial​

(0022,1330)​

1​

Reference to the quality control image associated with this​

LengthMeasurementQCImage​

 

 

measurement.​

 

Sequence​

 

 

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

 

 

 

 

 

 

See Section C.8.25.14.1.1.6 for further explanation.​

>>>IncludeTableC.8.25.16-6“OphthalmicAxialMeasurementsQuality​

 

Image SOP Instance Reference Macro Attributes”​

 

 

 

>>Ophthalmic Axial Length​

(0022,1262)​

1​

Information about the quality metric applied to Ophthalmic​

Quality Metric Sequence​

 

 

Axial Length (0022,1019).​

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

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1165​

Attribute Name​

Tag​

Type​

Attribute Description​

 

>>>IncludeTableC.8.25.14-6“OphthalmicAxialLengthQualityMetric​

 

Macro Attributes”​

 

 

 

 

>Selected Segmental​

(0022,1257)​

1C​

Segmental axial length measurement(s) selected for the​

Ophthalmic Axial Length​

 

 

patient's eye.​

 

Sequence​

 

 

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

 

 

 

 

 

 

Required if the value of Ophthalmic Axial Length​

 

 

 

Measurements Type (0022,1010) is present and is either​

 

 

 

SEGMENTAL LENGTH or LENGTH SUMMATION. May be​

 

 

 

present otherwise.​

 

 

 

 

Note​

 

 

 

 

In case of Ophthalmic Axial Length Measurements​

 

 

 

Type (0022,1010) has the value LENGTH​

 

 

 

 

SUMMATION both the Selected Total Ophthalmic​

 

 

 

Axial Length Sequence (0022,1260) and Selected​

 

 

 

Segmental Ophthalmic Axial Length Sequence​

 

 

 

(0022,1257) are used.​

 

>>Ophthalmic Axial Length​

(0022,1101)​

1​

Nameofthesegmentmeasured.SeeSectionC.8.25.14.1.1.4​

Measurements Segment Name​

 

 

for further explanation.​

 

Code Sequence​

 

 

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

 

 

 

>>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

DCID4233“OphthalmicAxialLengthMeasurementsSegment​

 

 

 

Names”​

 

>>Ophthalmic Axial Length​

(0022,1019)​

1​

The axial length measurement, in mm.​

 

 

 

 

The type of measurement is specified in the Ophthalmic Axial​

 

 

 

Length Measurements Type (0022,1010).​

 

 

 

 

See Section C.8.25.14.1.1.3 and Section C.8.25.14.1.1.4 for​

 

 

 

further explanation.​

 

>>ReferencedOphthalmicAxial​

(0022,1330)​

3​

Reference to the quality control image associated with this​

LengthMeasurementQCImage​

 

 

measurement.​

 

Sequence​

 

 

Only a single Item is permitted in this Sequence.​

 

 

 

 

 

 

See Section C.8.25.14.1.1.6 for further explanation.​

>>>IncludeTableC.8.25.16-6“OphthalmicAxialMeasurementsQuality​

 

Image SOP Instance Reference Macro Attributes”​

 

 

 

>>Ophthalmic Axial Length​

(0022,1262)​

3​

Information about the quality metric applied to Ophthalmic​

Quality Metric Sequence​

 

 

Axial Length (0022,1019).​

 

Only a single Item is permitted in this Sequence.​

>>>IncludeTableC.8.25.14-6“OphthalmicAxialLengthQualityMetric​ Macro Attributes”​

C.8.25.14.5 Ophthalmic Axial Measurements Quality Metric Macro​

Table C.8.25.14-6 describes the Attributes for the Ophthalmic Axial Length Quality Metric Macro.​

- Standard -​