DICOM PS3.3 2021b - Information Object Definitions

C.8.17.8 Ophthalmic Tomography Acquisition Parameters Module (Current)
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#### C.8.17.8 Ophthalmic Tomography Acquisition Parameters Module

Table C.8.17.8-1 describes patient clinical conditions related to an Ophthalmic Tomography image acquisition.

Table C.8.17.8-1. Ophthalmic Tomography Acquisition Parameters Module Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Axial Length of the Eye | (0022,0030) | 2 | Axial length of the eye in mm.
Horizontal Field of View | (0022,000C) | 2 | The horizontal field of view in degrees
Include Table C.8.17.8-2 “Ophthalmic Acquisition Parameters Macro Attributes” |

Table C.8.17.8-2. Ophthalmic Acquisition Parameters Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Refractive State Sequence | (0022,001B) | 2 | The refractive state of the imaged eye at the time of acquisition. Zero or one Itemshall be included in this Sequence. Zero length means the refractive state was not measured.
>Spherical Lens Power | (0022,0007) | 1 | Sphere value in diopters
>Cylinder Lens Power | (0022,0008) | 1 | Cylinder value in diopters
>Cylinder Axis | (0022,0009) | 1 | Axis value in degrees
Emmetropic Magnification | (0022,000A) | 2 | Emmetropic magnification value (dimensionless). Zero length means the emmetropic magnification was not measured.
Intra Ocular Pressure | (0022,000B) | 2 | Value of intraocular pressure in mmHg. Zero length means the pressure was not measured
Pupil Dilated | (0022,000D) | 2 | Whether or not the patient's pupils were pharmacologically dilated for this acquisition. Enumerated Values: YES NO If this Attribute is empty, no information is available.
Mydriatic Agent Sequence | (0022,0058) | 2C | Information about the agent administered. Zero or more Items shall be included in this Sequence. ### Note An empty Sequence indicates that an agent was used for dilation, but the name was not entered. Required if the value of Pupil Dilated (0022,000D) is YES.
>Mydriatic Agent Code Sequence | (0022,001C) | 1 | The actual agent administered to dilate the pupil. Only a single Item shall be included in this Sequence.
>>Include Table 8.8-1 “Code Sequence Macro Attributes” | BCID 4208 “Mydriatic Agent”.
>Mydriatic Agent Concentration | (0022,004E) | 3 | The concentration of the agent.
>Mydriatic Agent Concentration Units Sequence | (0022,0042) | 1C | Units of measure for the Mydriatic Agent Concentration. Only a single Item shall be included in this Sequence. Required if Mydriatic Agent Concentration (0022,004E) is present.
>>Include Table 8.8-1 “Code Sequence Macro Attributes” | DCID 82 “Units of Measurement”.
Degree of Dilation | (0022,000E) | 2C | The degree of the dilation in mm. Required if the value of Pupil Dilated (0022,000D) is YES.

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C.8.17.7 Ophthalmic Tomography Image Module | Home | C.8.17.9 Ophthalmic Tomography Parameters Module

DICOM PS3.3 2021b - Information Object Definitions