C.8.15.2.1 CT Image Description Attribute Description

C.8.15.2.1.1 Image Type and Frame Type

In addition to the requirements specified in C.8.16.1 Image Type and Frame Type, the following additional requirements and Defined Terms are specified.

These requirements and Defined Terms are also applicable to Frame Type (0008,9007).

C.8.15.2.1.1.1 Pixel Data Characteristics

Value 1 of Image Type (0008,0008) and Frame Type (0008,9007) is discussed in C.8.16.1.1. No additional requirements or Defined Terms.

C.8.15.2.1.1.2 Patient Examination Characteristics

Value 2 of Image Type (0008,0008) and Frame Type (0008,9007) is discussed in C.8.16.1.2. No additional requirements or Defined Terms.

C.8.15.2.1.1.3 Image Flavor

Table C.8-115 specifies the Defined Terms for CT additional to those defined in C.8.16.1.3 for Value 3 for Image Type (0008,0008) and Frame Type (0008,9007).

Table C.8-115IMAGE TYPE AND FRAME TYPE VALUE 3 FOR CT

Defined Term Name Defined Term Description
ATTENUATION Collected for the purpose of performing attenuation corrections (e.g. PET attenuation correction)
REFERENCE Collected for anatomical reference for PET or SPECT

C.8.15.2.1.1.4 Derived Pixel Contrast

Table C.8-116 specifies the Defined Terms for CT additional to those defined in C.8.16.1.4 for Value 4 for Image Type (0008,0008) and Frame Type (0008,9007).

Table C.8-116IMAGE TYPE AND FRAME TYPE VALUE 4 FOR CT

Defined Term Name Defined Term Description
FILTERED An image filter has been applied
MEDIAN Pixel by pixel median
ENERGY_PROP_WT Image pixels created through proportional weighting of multiple acquisitions at distinct X-Ray energies.