| ARCHETYPE ID | openEHR-EHR-CLUSTER.ophthalmic_thickness_details.v0 |
|---|---|
| Concept | Ophthalmic thickness details |
| Description | Record of clinical findings related to measurement of thickness upon ophthalmic structures. |
| Use | To specify the strategy to schedule a ophthalmic thickness study, but also to record the procedure as well as clinical findings obtained once the study has been completed. |
| Purpose | Register details about a study involving thickness measurement for specific ophthalmic structures. |
| References | |
| Copyright | © openEHR Foundation |
| Authors | Author name: Aitor Eguzkitza Organisation: Universidad Pública de Navarra - Complejo Hospitalario de Navarra Email: aitor.eguzkiza@unavarra.es Date originally authored: 2015-06-22 |
| Other Details Language | Author name: Aitor Eguzkitza Organisation: Universidad Pública de Navarra - Complejo Hospitalario de Navarra Email: aitor.eguzkiza@unavarra.es Date originally authored: 2015-06-22 |
| Other Details (Language Independent) |
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| Keywords | thickness |
| Lifecycle | in_development |
| UID | 68b6a995-8623-4443-8aef-5ed1cb47b922 |
| Language used | en |
| Citeable Identifier | 1013.1.2082 |
| Revision Number | 0.0.1-alpha |
| items | |
| Laterality | Laterality: Eye/s included in the study.
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| Device type | Device type: Identifies the type of acquisition device chosen to provide the thickness measurements. Corresponds to the (0022,1415) attribute.
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| Test Parameters | Test Parameters: Overall settings chosen to conduct the test. |
| Method | Method: The acquisition method used to obtain the ophthalmic thickness map. Corresponds to the (0022,1420) attribute. Values permitted are defined by DICOM standard (supplement 152) inside the table with Context ID 4261 (Ophthalmic Mapping Acquisition Method).
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| Value type | Value type: Specifies the meaning of the pixel values provided. Corresponds to the (0022,1436) attribute. Values permitted are defined by DICOM standard (supplement 152) inside the table with Context ID 4263 (Ophthalmic Thickness Map Value Type).
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| Normative data source | Normative data source: Identifies the normative data set used (if any) to contrast the absolute ophthalmic thickness measurements obtained in the study. Corresponds to the (0022,1443) attribute. |
| Thickness definition | Thickness definition: Specifies which layers of the retina are included in the thickness measurement. Corresponds to the (0022,1445) attribute. Values permitted are defined by DICOM standard (supplement 152) inside the table with Context ID 4262 (Retinal Thickness Definition).
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| Findings | Findings: Findings and results from the thickness measurement study. |
| Optic disc parameters | Optic disc parameters: Parameters resulting from thickness measurements carried out upon the optic disk. |
| Disc area (DA) | Disc area (DA): Area of the optic disk in mm2. Property: Area Units: >=0.0 mm² Limit decimal places: 3 |
| Excavation area (CA) | Excavation area (CA): Cup area inside the optic disc in mm2. Property: Area Units: >=0.0 mm² Limit decimal places: 3 |
| Ring area (RA) | Ring area (RA): Measurement of the neural rim area inside the optic disc in mm2. Property: Area Units: >=0.0 mm² Limit decimal places: 3 |
| Excavation volume (CV) | Excavation volume (CV): Cup volume measured inside the optic disc in mm3. Property: Volume Units: >=0.0 mm³ Limit decimal places: 3 |
| Ring volume (RV) | Ring volume (RV): Neural rim volume measured inside the optic disc in mm3. Property: Volume Units: >=0.0 mm³ Limit decimal places: 3 |
| Cup-to-disc ratio (CDR) | Cup-to-disc ratio (CDR): Ratio obtained from cup and disc area values. |
| Lineal Cup-to-disc ratio (LCDR) | Lineal Cup-to-disc ratio (LCDR): average of the cup/disc diameter ratios (square root of cup/disc area ratio). The linear cup/disc ratio should be similar to the clinician’s assessment of cup/disc ratio, as it is an average of all cup/disc ratio measures along all the meridians. |
| Vertical disc diameter (VDD) | Vertical disc diameter (VDD): Diameter of the optic disk in the axis perpendicular to macula. Property: Length Units: >=0.0 mm Limit decimal places: 3 |
| Horizontal disc diameter (HDD) | Horizontal disc diameter (HDD): Diameter of the optic disk in the axis paralel to macula. Property: Length Units: >=0.0 mm Limit decimal places: 3 |
| Macular parameters | Macular parameters: Parameters resulting from thickness measurements carried out upon the macula. |
| Macula index (thickness) | Macula index (thickness): Is the thickness ratio obtained from the total inner ring to the total outer ring on a ETDRS grid (centered over the macula).
Denominator: >=0.0 Assumed value: false |
| Macula index (volume) | Macula index (volume): Is the volume ratio obtained from the total inner ring to the total outer ring on a ETDRS grid (centered over the macula).
Denominator: >=0.0 Assumed value: false |
| Average thickness of retina | Average thickness of retina: Average value of thickness for every value measured on the current thickness map. Property: Length Units: >=0.0 μm Limit decimal places: 0 |
| Average thickness change on retina | Average thickness change on retina: Average value of thickness for every value measured on a comparative thickness map, obtained measuring thickness changes during a follow-up study. Property: Length Units: μm Limit decimal places: 0 |
| Thickness map | Thickness map: Object that encloses the image of an ophthalmic thickness map. image/cgm, image/gif, image/png, image/tiff, image/jpeg, application/pdf, application/dicom |
| Other contributors | Jose Andonegui Navarro, Complejo Hospitalario de Navarra, Spain Luis Serrano Arriezu, Institute of Smart Cities & Universidad Pública de Navarra, Spain Ian McNicoll, freshEHR Clinical Informatics, United Kingdom |
| Translators |