DICOM Tables


CT IMAGE MODULE ATTRIBUTES

Tag
Tag Name
Requirement
Description
(0008,0008) Image Type
1
Image identification characteristics. See C.8.2.1.1.1 for specialization.
(0028,0002) Samples per Pixel
1
Number of samples (planes) in this image. See C.8.2.1.1.2 for specialization.
(0028,0004) Photometric Interpretation
1
Specifies the intended interpretation of the pixel data. See C.8.2.1.1.3 for specialization.
(0028,0100) Bits Allocated
1
Number of bits allocated for each pixel sample. Each sample shall have the same number of bits allocated. See C.8.2.1.1.4 for specialization.
(0028,0101) Bits Stored
1
Number of bits stored for each pixel sample. Each sample shall have the same number of bits stored. See C.8.2.1.1.5 for specialization.
(0028,0102) High Bit
1
Most significant bit for pixel sample data. Each sample shall have the same high bit. See C.8.2.1.1.6 for specialization.
(0028, 1052 Rescale Intercept
T
0028he value b in relationship between stored values (SV) and Hounsfield (HU). HU = m*SV+b
(0028,1053) Rescale Slope
1
m in the equation specified in Rescale Intercept (0028,1052).
(0018,0060) KVP
2
Peak kilo voltage output of the x-ray generator used
(0020,0012) Acquisition Number
2
A number identifying the single continuous gathering of data over a period of time which resulted in this image
(0018,0022) Scan Options
3
Parameters of scanning sequence.
(0018,0090) Data Collection Diameter
3
The diameter in mm of the region over which data were collected
(0018,1100) Reconstruction Diameter
3
Diameter in mm of the region from within which data were used in creating the reconstruction of the image. Data may exist outside this region and portions of the patient may exist outside this region.
(0018,1110) Distance Source to Detector
3
Distance in mm from source to detector center
(0018,1111) Distance Source to Patient
3
Distance in mm from source to isocenter (center of field of view)
(0018,1120) Gantry/Detector Tilt
3
Nominal angle of tilt in degrees of the scanning gantry. Not intended for mathematical computations.
(0018,1130) Table Height
3
The distance in mm of the top of the patient table to the center of rotation; below the center is positive.
(0018,1140) Rotation Direction
3
Direction of rotation of the source when relevant, about nearest principal axis of equipment. Enumerated Values: CW = clockwise CC = counter clockwise
(0018,1150) Exposure Time
3
Time of x-ray exposure in msec
(0018,1151) X-ray Tube Current
3
X-ray Tube Current in mA.
(0018,1152) Exposure
3
The exposure expressed in mAs, for example calculated from Exposure Time and X-ray Tube Current.
(0018,1153) Exposure in µAs
3
The exposure expressed in µAs, for example calculated from Exposure Time and X-ray Tube Current.
(0018,1160) Filter Type
3
Label for the type of filter inserted into the x-ray beam.
(0018,1170) Generator Power
3
Power in kW to the x-ray generator.
(0018,1190) Focal Spot
3
Size of the focal spot in mm. For devices with variable focal spot or multiple focal spots, small dimension followed by large dimension.
(0018,1210) Convolution Kernel
3
A label describing the convolution kernel or algorithm used to reconstruct the data