C.7.3.1 General Series Module

Table C.7-5a specifies the Attributes that identify and describe general information about the Series within a Study.

Table C.7-5aGENERAL SERIES MODULE ATTRIBUTES

Attribute Name Tag Type Attribute Description
Modality (0008,0060) 1 Type of equipment that originally acquired the data used to create the images in this Series. See C.7.3.1.1.1 for Defined Terms.
Series Instance UID (0020,000E) 1 Unique identifier of the Series.
Series Number (0020,0011) 2 A number that identifies this Series.
Laterality (0020,0060) 2C Laterality of (paired) body part examined. Required if the body part examined is a paired structure and Image Laterality (0020,0062) or Frame Laterality (0020,9072) are not sent. Enumerated Values: R = right L = left Note: Some IODs support Image Laterality (0020,0062) at the Image level or Frame Laterality(0020,9072) at the Frame level in the Frame Anatomy functional group macro or Measurement Laterality (0024,0113) at the Measurement level, which can provide a more comprehensive mechanism for specifying the laterality of the body part(s) being examined.
Series Date (0008,0021) 3 Date the Series started.
Series Time (0008,0031) 3 Time the Series started.
Performing Physicians’ Name (0008,1050) 3 Name of the physician(s) administering the Series.
Performing Physician Identification Sequence (0008,1052) 3 Identification of the physician(s) administering the Series. One or more items are permitted in this sequence. If more than one Item, the number and order shall correspond to the value of Performing Physicians’ Name (0008,1050), if present.
>Include ‘Person Identification Macro’ Table 10-1
Protocol Name (0018,1030) 3 User-defined description of the conditions under which the Series was performed. Note: This attribute conveys series-specific protocol identification and may or may not be identical to the one presented in the Performed Protocol Code Sequence (0040,0260).
Series Description (0008,103E) 3 Description of the Series
Series Description Code Sequence (0008,103F) 3 A coded description of the Series. Only a single Item is permitted in this sequence.
>Include Code Sequence Macro Table 8.8-1 No Baseline Context ID is defined.
Operators' Name (0008,1070) 3 Name(s) of the operator(s) supporting the Series.
Operator Identification Sequence (0008,1072) 3 Identification of the operator(s) supporting the Series. One or more items are permitted in this sequence. If more than one Item, the number and order shall correspond to the value of Operators’ Name (0008,1070), if present.
>Include ‘Person Identification Macro’ Table 10-1
Referenced Performed Procedure Step Sequence (0008,1111) 3 Uniquely identifies the Performed Procedure Step SOP Instance to which the Series is related (e.g. a Modality or General-Purpose Performed Procedure Step SOP Instance). Only a single Item is permitted in this sequence.
>Include SOP Instance Reference Macro Table 10-11
Related Series Sequence (0008,1250) 3 Identification of Series significantly related to this Series. One or more Items are permitted in this Sequence. Notes: 1. For example, for a combined CT and PET acquisition, the CT images and PET images would be in separate series that could cross-reference each other with multiple purpose of reference codes meaning same anatomy, simultaneously acquired and same indication. 2. The related series may have different Frames of Reference and hence require some sort of registration before spatial coordinates can be directly compared. 3. This attribute is not intended for conveying localizer reference information, for which Referenced Image Sequence (0008,1140) should be used.
>Study Instance UID (0020,000D) 1 Instance UID of Study to which the related Series belongs
>Series Instance UID (0020,000E) 1 Instance UID of Related Series
>Purpose of Reference Code Sequence (0040,A170) 2 Describes the purpose for which the reference is made. Zero or more Items shall be included in this sequence. When absent, implies that the reason for the reference is unknown.
>>Include Code Sequence Macro Table 8.8-1 Defined CID 7210
Body Part Examined (0018,0015) 3 Text description of the part of the body examined. See PS 3.16 Annexes on Correspondence of Anatomic Region Codes and Body Part Examined for Humans and for Animals for Defined Terms Note: Some IODs support the Anatomic Region Sequence (0008,2218), which can provide a more comprehensive mechanism for specifying the body part being examined.
Patient Position (0018,5100) 2C Patient position descriptor relative to the equipment. Required for images where Patient Orientation Code Sequence (0054,0410) is not present and whose SOP Class is one of the following: CT ("1.2.840.10008.5.1.4.1.1.2") or MR ("1.2.840.10008.5.1.4.1.1.4") or Enhanced CT ("1.2.840.10008.5.1.4.1.1.2.1") or Enhanced MR Image ("1.2.840.10008.5.1.4.1.1.4.1") or Enhanced Color MR Image ("1.2.840.10008.5.1.4.1.1.4.3") or MR Spectroscopy ("1.2.840.10008.5.1.4.1.1.4.2") Storage SOP Classes. May be present for other SOP Classes if Patient Orientation Code Sequence (0054,0410) is not present. See C.7.3.1.1.2 for Defined Terms and further explanation.
Smallest Pixel Value in Series (0028,0108) 3 The minimum value of all images in this Series.
Largest Pixel Value in Series (0028,0109) 3 The maximum value of all images in this Series.
Request Attributes Sequence (0040,0275) 3 Sequence that contains attributes from the Imaging Service Request. One or more Items are permitted in this sequence.
>Include Request Attributes Macro Table 10-9 No Baseline Context IDs defined
Include Performed Procedure Step Summary Macro Table 10-16 No Baseline Context IDs defined
Anatomical Orientation Type (0010,2210) 1C The anatomical orientation type used in instances generated by this equipment. Enumerated Values: BIPED QUADRUPED Required if the patient is an animal and the anatomical frame of reference is not bipedal. May be present otherwise. See C.7.6.1.1.1 and C.7.6.2.1.1. Note: If this Attribute is not present, the default human standard anatomical position is used to define the patient orientation of projection images and the patient coordinate system of cross-sectional images.

Notes: 1. If the Modality or General Purpose Performed Procedure Step SOP Class is supported as an SCU by a Storage SCU, the SCU is strongly encouraged to support the attribute Referenced Performed Procedure Step Sequence (0008,1111). This attribute references the Performed Procedure Step SOP Instance, and extraction of this Attribute from a Composite Instance may allow retrieval of the Performed Procedure Step SOP Instance.

2. If the Storage SCU does not conform to the Modality or General Purpose Performed Procedure Step SOP Class, it is still advisable to include the attributes Performed Procedure Step Start Date (0040,0244), Performed Procedure Step Start Time (0040,0245) and Performed Procedure Step Description (0040,0254) into the Composite Instances.

C.7.3.1.1 General Series Attribute Descriptions

C.7.3.1.1.1 Modality

Defined Terms for the Modality (0008,0060) are:

CR = Computed Radiography CT = Computed Tomography
MR = Magnetic Resonance NM = Nuclear Medicine
US = Ultrasound OT = Other
BI = Biomagnetic imaging
DG = Diaphanography
ES = Endoscopy LS = Laser surface scan
PT = Positron emission tomography (PET) RG = Radiographic imaging (conventional film/screen)
TG = Thermography
XA = X-Ray Angiography RF = Radio Fluoroscopy
RTIMAGE = Radiotherapy Image RTDOSE = Radiotherapy Dose
RTSTRUCT = Radiotherapy Structure Set RTPLAN = Radiotherapy Plan
RTRECORD = RT Treatment Record HC = Hard Copy
DX = Digital Radiography MG = Mammography
IO = Intra-oral Radiography PX = Panoramic X-Ray
GM = General Microscopy SM = Slide Microscopy
XC = External-camera Photography PR = Presentation State
AU = Audio ECG = Electrocardiography
EPS = Cardiac Electrophysiology HD = Hemodynamic Waveform
SR = SR Document IVUS = Intravascular Ultrasound
OP = Ophthalmic Photography SMR = Stereometric Relationship
AR = Autorefraction KER = Keratometry
VA = Visual Acuity SRF = Subjective Refraction
OCT = Optical Coherence Tomography (non-Ophthalmic) LEN = Lensometry
OPV = Ophthalmic Visual Field OPM = Ophthalmic Mapping
OAM = Ophthalmic Axial Measurements RESP = Respiratory Waveform
KO = Key Object Selection SEG = Segmentation
REG = Registration OPT = Ophthalmic Tomography
BDUS = Bone Densitometry (ultrasound) BMD = Bone Densitometry (X-Ray)
DOC = Document FID = Fiducials
PLAN = Plan IOL = Intraocular Lens Data
IVOCT = Intravascular Optical Coherence Tomography

Retired Defined Terms for the Modality (0008,0060) are:

DS = Digital Subtraction Angiography CF = Cinefluorography
DF = Digital fluoroscopy VF = Videofluorography
AS = Angioscopy CS = Cystoscopy
EC = Echocardiography LP = Laparoscopy
FA = Fluorescein angiography CP = Culposcopy
DM = Digital microscopy FS = Fundoscopy
MA = Magnetic resonance angiography MS = Magnetic resonance spectroscopy
CD = Color flow Doppler DD = Duplex Doppler
ST = Single-photon emission computed tomography (SPECT) OPR = Ophthalmic Refraction

Note: 1. The XA modality incorporates the retired modality DS.

2. The RF modality incorporates the retired modalities CF, DF, VF.

3. The modality listed in the Modality Data Element (0008,0060) may not match the name of the IOD in which it appears. For example, a SOP instance from XA IOD may list the RF modality when an RF implementation produces an XA object.

4. The MR modality incorporates the retired modalities MA and MS.

5. The US modality incorporates the retired modalities EC, CD, and DD.

6. The NM modality incorporates the retired modality ST.

C.7.3.1.1.2 Patient Position

Patient Position (0018,5100) specifies the position of the patient relative to the imaging equipment space. This attribute is intended for annotation purposes only. It does not provide an exact mathematical relationship of the patient to the imaging equipment.

When facing the front of the imaging equipment, Head First is defined as the patient’s head being positioned toward the front of the imaging equipment. Feet First is defined as the patient’s feet being positioned toward the front of the imaging equipment. Prone is defined as the patient’s face being positioned in a downward (gravity) direction. Supine is defined as the patient’s face being in an upward direction. Decubitus Right is defined as the patient’s right side being in a downward direction. Decubitus Left is defined as the patient’s left side being in a downward direction.

The Defined Terms are:

HFP = Head First-Prone HFS = Head First-Supine
HFDR = Head First-Decubitus Right HFDL = Head First-Decubitus Left
FFDR = Feet First-Decubitus Right FFDL = Feet First-Decubitus Left
FFP = Feet First-Prone FFS = Feet First-Supine

The Figure C.7.3.1.1.2-1 illustrates these defined terms for imaging equipment with a table, such as in X-Ray Angiography. The orientation of the patient related to gravity is always recumbent.

[pic] [pic]
Recumbent - Head First – Supine Recumbent - Head First - Prone
[pic] [pic]
Recumbent - Head First - Decubitus Right Recumbent - Head First - Decubitus Left
[pic] [pic]
Recumbent - Feet First – Supine Recumbent - Feet First - Prone
[pic] [pic]
Recumbent - Feet First - Decubitus Right Recumbent - Feet First - Decubitus Left

Figure C.7.3.1.1.2-1Representation of the eight Different Patient Positions on the X-Ray Table