DICOM PS3.17 2021e - Explanatory Information

AAAA.4 Single XA Device For Acquisition and Reconstruction

This example is intended to illustrate the encoding mechanisms of the DICOM XA Protocol Storage IODs, not to suggest particular values for clinical use. Further, this example does not contain the many detailed Attributes one would expect from a fully executable defined protocol generated by an XA device, but it demonstrates the usage of many common Attributes.

This section includes one Defined Protocol example of an Adult Carotid Stenting Protocol for one XA device model, developed for a fictitious Mercy Hospital. It contains the following protocol elements:

AAAA.4.1 Common Context

Table AAAA.4-1 contains the attributes that are basically the same for each model of equipment from the same manufacturer. The Table AAAA.4-2 contains the attributes specific to one model of equipment.

Table AAAA.4-1. Adult Carotid Stenting Protocol - Context

Attribute

Tag

Value

Equipment Modality

(0008,0221)

XA

Custodial Organization Sequence

(0040,A07C)

>Institution Name

(0008,0800)

Mercy Hospital

Responsible Group Code Sequence

(0008,0220)

(708174004, SCT, "Interventional Radiology Service")

Protocol Name

(0018,1030)

Carotid Stenting

Potential Requested Procedure Code Sequence

(0018,9907)

(103716009, SCT, "Stent placement")

Contraindications Code Sequence

(0018,990B)

(293638001, SCT, "X-ray Contrast Media Allergy")

Instruction Sequence

(0018,9914)

>Instruction Index

(0018,9915)

1

>Instruction Text

(0018,9916)

"Start with fluoroscopy. See Instruction Description."

>Instruction Description

(0018,9917)

Frame Rate: 7.5 frames/second

Breathing Technique: No Breath Hold

>Instruction Index

(0018,9915)

2

>Instruction Text

(0018,9916)

"Follow by one or more DSA acquisitions. See Instruction Description."

>Instruction Description

(0018,9917)

Breathing Technique: Breath Hold

Contrast: Omnipaque 350 or Visipaque 320, based on Creatine Clearance

Injection: 4ml per second for 10ml total for 6 french catheters. 3ml per second for 8ml total for 4 French Catheters.

FOV: 20 cm

Table Height: Above IRP

>Instruction Index

(0018,9915)

3

>Instruction Text

(0018,9916)

"Follow by one rotational acquisition. See Instruction Description."

>Instruction Description

(0018,9917)

Breathing Technique: Breath Hold

Contrast: Omnipaque 350 or Visipaque 320, based on Creatine Clearance

Injection: 13ml per second for 39ml total for 6 french catheters.

FOV: 30 cm

Table Height: Carotid at Isocenter

Protocol Defined Patient Position

(0018,9947)

HFS

Anatomic Region Sequence

(0008,2218)

(774007, SCT, "Head and Neck")


DICOM PS3.17 2021e - Explanatory Information