Pixel Spacing Calibration Description Attribute
| Tag | (0028,0A04) |
|---|---|
| Type | Conditionally Required (1C) |
| Keyword | PixelSpacingCalibrationDescription |
| Value Multiplicity | 1 |
| Value Representation | Long String (LO) |
A free text description of the type of correction or calibration performed.
Note
-
In the case of correction, the text might include description of the assumptions made about the body part and geometry and depth within the Patient.
-
in the case of calibration, the text might include a description of the fiducial and where it is located (e.g., "XYZ device applied to the skin over the greater trochanter").
-
Though it is not required, the Device Module may be used to describe the specific characteristics and size of the calibration device.
Required if Pixel Spacing Calibration Type (0028,0A02) is present.
Device Module
C.7.6.12 Device Module
Table C.7-18 describes the Attributes of devices or calibration objects (e.g., catheters, markers, baskets) that are associated with a Study and/or image.
Table C.7-18. Device Module Attributes
|
Attribute Name |
Tag |
Type |
Attribute Description |
|---|---|---|---|
|
Device Sequence |
(0050,0010) |
1 |
A Sequence of Items describing devices used that may be visible in the image. One or more Items shall be included in this Sequence. |
|
>Manufacturer |
(0008,0070) |
3 |
Manufacturer of the device |
|
>Manufacturer's Model Name |
(0008,1090) |
3 |
Manufacturer's model name of the device |
|
>Device Serial Number |
(0018,1000) |
3 |
Manufacturer's serial number of the device |
|
>Device ID |
(0018,1003) |
3 |
User-supplied identifier for the device |
|
>Device Length |
(0050,0014) |
3 |
Length in mm of device. See Section C.7.6.12.1.1. |
|
>Device Diameter |
(0050,0016) |
3 |
Unit diameter of device. See Section C.7.6.12.1.1. |
|
>Device Diameter Units |
(0050,0017) |
2C |
Required if Device Diameter (0050,0016) is present. Defined Terms:
|
|
>Device Volume |
(0050,0018) |
3 |
Volume of device in ml. See Section C.7.6.12.1.1. |
|
>Inter-Marker Distance |
(0050,0019) |
3 |
Distance in mm between markers on calibrated device. See Section C.7.6.12.1.1. |
|
>Device Description |
(0050,0020) |
3 |
Further description in free form text describing the device. |
C.7.6.12.1 Device Attribute Descriptions
C.7.6.12.1.1 Device Type and Size
Depending on the type of device specified by Code Value (0008,0100) in an Item of Device Sequence (0050,0010), various device size Attributes (e.g., Device Length (0050,0014), Device Diameter (0050,0016), Device Volume (0050,0018), Inter Marker Distance (0050,0019)) may be required to fully characterize the device.