Protocol Defined Patient Position

(0018,9947)

1

Patient position relative to the equipment described by the procedure protocol.

See Section C.7.3.1.1.2 for Defined Terms and further explanation.

Patient Positioning Instruction Sequence

(0018,991B)

3

Instructions for positioning and aligning the patient for the procedure. E.g., aligning an anatomical landmark with laser crosshairs.

One or more Items are permitted in this Sequence.

The precise correlation between positioning and scan elements is to be described in the Instruction Text if necessary.

>Instruction Index

(0018,9915)

1

Identifies the order in which instruction Sequence Items are presented/performed.

The value shall be an integer, increasing monotonically by 1, starting from 1.

>Instruction Text

(0018,9916)

1

A displayable string explaining what should be done.

>Instruction Description

(0018,9917)

3

A detailed description explaining what should be done.

>Instruction Performed Flag

(0018,9918)

1C

Whether or not this instruction was performed.

Required if the value of SOP Class UID (0008,0016) equals 1.2.840.10008.5.1.4.1.1.200.2 (CT Performed Procedure Protocol Storage).

>Instruction Performed Datetime

(0018,9919)

1C

Date and time the instruction was performed.

Required if Instruction Performed Flag (0018,9918) is present with a value of YES.

Positioning Method Code Sequence

(0018,991C)

3

Identifies the method for positioning the patient.

Only a single Item shall be included in this Sequence.

See Section C.34.8.1.

>Include Table 8.8-1 “Code Sequence Macro Attributes”

BCID 1015 “Patient Alignment Methods”.

Positioning Landmark Sequence

(0018,991D)

3

A coded location identifying the intended landmark used as the basis for positioning.

Only a single Item is permitted in this Sequence.

See Section C.34.8.1.

>Include Table 10.27-1 “Reference Location Macro Attributes”

BCID 1000 “CT Transverse Plane Reference Basis” for Reference Basis Code Sequence (0018,9902)

BCID 1010 “Reference Geometry - Planes” for Reference Geometry Code Sequence (0018,9903)

Target Frame of Reference UID

(0018,991E)

3

UID of the Frame of Reference of another dataset to which the current procedure is intended to be roughly aligned.

Target Position Reference Indicator

(0020,103F)

3

Position Reference Indicator for the Target Frame of Reference UID (0018,991E).

See Section C.34.8.1.

Anatomic Region Sequence

(0008,2218)

2

Identifies the general anatomic region imaged by the Protocol.

See Section C.34.8.2.

Zero or one Item shall be included in this Sequence.

>Include Table 8.8-1 “Code Sequence Macro Attributes”

BCID 4031 “Common Anatomic Regions”.

>Anatomic Region Modifier Sequence

(0008,2220)

3

Sequence of Items that modifies the anatomic region of interest of this Instance.

See Section C.34.8.2.

One or more Items are permitted in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

Defined CID is CID 2.

Primary Anatomic Structure Sequence

(0008,2228)

2

Identifies the primary anatomic structure(s) of interest in this Protocol.

Zero or more Items shall be included in this Sequence.

>Include Table 8.8-1 “Code Sequence Macro Attributes”

>Primary Anatomic Structure Modifier Sequence

(0008,2230)

3

Sequence of Items that modifies the primary anatomic structure of interest in this Instance.

One or more Items are permitted in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

Defined CID is CID 2.