DICOM PS3.3 2018e - Information Object Definitions

C.7.3 Common Series IE Modules

The following Series IE Modules are common to all Composite Image IODs that reference the Series IE.

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.7-5a. General 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 Section 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) or Measurement Laterality (0024,0113) are not present.

Enumerated Values:

R

right

L

left

Note

  1. 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.

  2. There is no value for both left and right, for which Image Laterality (0020,0062) at the Image level or Frame Laterality (0020,9072) may be used instead.

Series Date

(0008,0021)

3

Date the Series started.

Series Time

(0008,0031)

3

Time the Series started.

Performing Physician's 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 Physician's Name (0008,1050), if present.

>Include Table 10-1 “Person Identification Macro Attributes Description”

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 protocol described in the Performed Protocol Code Sequence (0040,0260) in the Performed Protocol Code Sequence (0040,0260) in Table 10-16 “Performed Procedure Step Summary Macro Attributes”.

Referenced Defined Protocol Sequence

(0018,990C)

1C

Defined Procedure Protocol SOP Instance(s) that were used to create Instances in this Series.

Required if this instance is a Performed Procedure Protocol that resulted from a Defined Procedure Protocol.

May be present otherwise.

One or more Items shall be included in this Sequence.

Note

Multiple Items in this Sequence may represent a group case where several Defined Procedure Protocols were performed together as a single Performed Procedure Protocol.

>Include Table 10-11 “SOP Instance Reference Macro Attributes”

Referenced Performed Protocol Sequence

(0018,990D)

1C

Uniquely identifies the Performed Procedure Protocol SOP Instance(s) that describe the conditions by which this Series was generated.

Required if a related Performed Procedure Protocol SOP Instance was created.

One or more Items shall be included in this Sequence.

Note

If the acquisition and reconstruction were recorded in separate Performed Procedure Protocol SOP Instances, it is recommended to reference both. However, it is not intended that this Sequence reference Defined or prior Performed Protocol SOP Instances on which the current Performed Procedure Protocol SOP Instance was based. Such references may be found inside the current Performed Procedure Protocol SOP Instance itself.

>Include Table 10-11 “SOP Instance Reference Macro Attributes”

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 Table 8.8-1 “Code Sequence Macro Attributes”

No Baseline CID 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 Table 10-1 “Person Identification Macro Attributes Description”

Referenced Performed Procedure Step Sequence

(0008,1111)

3

Uniquely identifies the Performed Procedure Step SOP Instance to which the Series is related.

Only a single Item is permitted in this Sequence.

>Include Table 10-11 “SOP Instance Reference Macro Attributes”

Related Series Sequence

(0008,1250)

3

Identification of Series significantly related to this Series.

One or more Items are permitted in this Sequence.

Note

  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 Table 8.8-1 “Code Sequence Macro Attributes”

DCID 7210 “Related Series Purposes of Reference”.

Body Part Examined

(0018,0015)

3

Text description of the part of the body examined. See Annex L “Correspondence of Anatomic Region Codes and Body Part Examined Defined Terms” in PS3.16 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 Section 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 Table 10-9 “Request Attributes Macro Attributes”

No Baseline CID is defined.

Include Table 10-16 “Performed Procedure Step Summary Macro Attributes”

No Baseline CID is 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 Section C.7.6.1.1.1 and Section 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-Based Coordinate System of cross-sectional images.


Note

  1. If any 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 any 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:

AR

Autorefraction

ASMT

Content Assessment Results

AU

Audio

BDUS

Bone Densitometry (ultrasound)

BI

Biomagnetic imaging

BMD

Bone Densitometry (X-Ray)

CR

Computed Radiography

CT

Computed Tomography

CTPROTOCOL

CT Protocol (Performed)

DG

Diaphanography

DOC

Document

DX

Digital Radiography

ECG

Electrocardiography

EPS

Cardiac Electrophysiology

ES

Endoscopy

FID

Fiducials

GM

General Microscopy

HC

Hard Copy

HD

Hemodynamic Waveform

IO

Intra-Oral Radiography

IOL

Intraocular Lens Data

IVOCT

Intravascular Optical Coherence Tomography

IVUS

Intravascular Ultrasound

KER

Keratometry

KO

Key Object Selection

LEN

Lensometry

LS

Laser surface scan

MG

Mammography

MR

Magnetic Resonance

M3D

Model for 3D Manufacturing

NM

Nuclear Medicine

OAM

Ophthalmic Axial Measurements

OCT

Optical Coherence Tomography (non-Ophthalmic)

OP

Ophthalmic Photography

OPM

Ophthalmic Mapping

OPT

Ophthalmic Tomography

OPTBSV

Ophthalmic Tomography B-scan Volume Analysis

OPTENF

Ophthalmic Tomography En Face

OPV

Ophthalmic Visual Field

OSS

Optical Surface Scan

OT

Other

PLAN

Plan

PR

Presentation State

PT

Positron emission tomography (PET)

PX

Panoramic X-Ray

REG

Registration

RESP

Respiratory Waveform

RF

Radio Fluoroscopy

RG

Radiographic imaging (conventional film/screen)

RTDOSE

Radiotherapy Dose

RTIMAGE

Radiotherapy Image

RTINTENT

Radiotherapy Intent

RTPLAN

Radiotherapy Plan

RTRECORD

RT Treatment Record

RTSEGANN

Radiotherapy Segment Annotation

RTSTRUCT

Radiotherapy Structure Set

RWV

Real World Value Map

SEG

Segmentation

SM

Slide Microscopy

SMR

Stereometric Relationship

SR

SR Document

SRF

Subjective Refraction

STAIN

Automated Slide Stainer

TG

Thermography

US

Ultrasound

VA

Visual Acuity

XA

X-Ray Angiography

XC

External-camera Photography

Retired Defined Terms:

AS

Angioscopy

CD

Color flow Doppler

CF

Cinefluorography

CP

Culposcopy

CS

Cystoscopy

DD

Duplex Doppler

DF

Digital fluoroscopy

DM

Digital microscopy

DS

Digital Subtraction Angiography

EC

Echocardiography

FA

Fluorescein angiography

FS

Fundoscopy

LP

Laparoscopy

MA

Magnetic resonance angiography

MS

Magnetic resonance spectroscopy

OPR

Ophthalmic Refraction

ST

Single-photon emission computed tomography (SPECT)

VF

Videofluorography

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 multiple subjects are present in the same image, and arranged with different positions, then the Patient Position (0018,5100) in the General Series Module is nominal, does not apply to each subject, but does define the relationship of the nominal Patient-Based Coordinate System to the machine.

Note

In conjunction with the Patient Position (0018,5100) in each Item of the Group of Patients Identification Sequence (0010,0027), Patient Position (0018,5100) in the General Series Module may be helpful to compute patient-relative spatial information for each subject from the Attributes of the Image Plane Module.

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 (i.e., head entering the front of the equipment). Feet First is defined as the patient's feet being positioned toward the front of the imaging equipment (i.e., feet entering the front of the equipment). Left First is defined as the patient's left side being positioned towards the front of the imaging equipment (i.e., patient's left side entering the front of the equipment). Right First is defined as the patient's right being positioned towards the front of the imaging equipment (i.e., patient's right side entering the front of the 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.

Defined Terms:

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

LFP

Left First-Prone

LFS

Left First-Supine

RFP

Right First-Prone

RFS

Right First-Supine

AFDR

Anterior First-Decubitus Right

AFDL

Anterior First-Decubitus Left

PFDR

Posterior First-Decubitus Right

PFDL

Posterior First-Decubitus Left

Note

  1. For quadrupeds, separate concepts for ventral and dorsal are not introduced, rather it is expected that anterior and posterior will be considered synonymous as they are when applied to the trunk.

  2. There are no decubitus variants of left or right first, since for imaging equipment that is aligned horizontally with respect to gravity the patient cannot be both decubitus and have the left or right side towards the front of the imaging equipment.

  3. There are no prone or supine variants of anterior or posterior first, since for imaging equipment that is aligned horizontally with respect to gravity the patient cannot be prone or supine and have the anterior or posterior side towards the front of the imaging equipment.

The Figure C.7.3.1.1.2-1 illustrates some of 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.

Representation of the Eight Different Patient Positions on the X-Ray Table

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


Example of Right First-Prone (RFP) Patient Position Relative to the Gantry and Table for a Small Animal

Figure C.7.3.1.1.2-2. Example of Right First-Prone (RFP) Patient Position Relative to the Gantry and Table for a Small Animal


DICOM PS3.3 2018e - Information Object Definitions