DICOM PS3.3 2022b - Information Object Definitions
C.36.2.2.18 Interlock Macro

Table C.36.2.2.18-1. Interlock Macro Attributes

Attribute Name

Tag

Type

Attribute Description

Interlock DateTime

(300A,0741)

1

Date and Time when the Interlock occurred.

The date and time of occurrence may be when the interlock occurred (e.g. by a real-time system) or when the interlock was recorded.

See Section C.7.4.2.1.4.

Interlock Description

(300A,0742)

1

User-readable description of the interlock.

Interlock Origin Description

(300A,0783)

1C

Description of the origin of the interlock.

Required if Interlock Originating Device Sequence (300A,0743) is not present.

Interlock Originating Device Sequence

(300A,0743)

1C

Contains the attributes that identify the device that originated the interlock.

Only a single Item shall be included in this Sequence.

Required if Interlock Origin Description (300A,0783) is not present.

>Include Table 10.36-1 “Device Identification Macro Attributes”

No Baseline CID is defined.

Interlock Code Sequence

(300A,0744)

1

Code(s) that describe the interlock(s) that occurred.

One or more Items shall be included in this Sequence.

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

BCID 9568 “Radiotherapy Treatment Interlocks”.

Interlock Resolution Code Sequence

(300A,0745)

1

The action applied to resolve the interlock.

One or more Items shall be included in this Sequence.

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

DCID 9563 “Radiotherapy Interlock Resolutions”.

Interlock Resolution User Sequence

(300A,0746)

2

The user that resolved the interlock.

Zero or more Items shall be included in this Sequence.

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


DICOM PS3.3 2022b - Information Object Definitions