Flow in the Ascending Aorta
| Purpose | Automate measurement of flow in ascending aorta |
| Tag(s) | #Qp:Qs |
| Panel | Cardiac |
| Define-AI ID | 18040020 |
| Originator | Benoit Desjardins |
| Panel Chair | Carlo De Cecco |
| Panel Reviewers | Cardiac Panel |
| License | |
| Status | Published |
Clinical Implementation
Value Proposition
Measurement of flow in the ascending thoracic aorta is a well-established clinical parameter that has fundamental diagnostic, therapeutic, and prognostic implications. Cardiac Magnetic Resonance (CMR) allow accurate assessment of flow parameters. Automated aortic flow quantification would save the interpreting physician time via elimination of manual measurements, prevent detection errors, and provide structured quantitative data, which could be used in later studies or risk stratification schemes.Narrative(s)
All patients undergoing CMR examinations which include flow measurements should have automated quantification of aortic flow if data are available, which may then be automatically populated into the radiology report or a report supplement.Workflow Description
Patient receives MRI of the chest/heart. Algorithm retrieves aortic flow imaging dataset if present and may ingest additional EMR data such as age, sex, and body surface area. Algorithm executes and calculates values of net flow, flow volume, maximum flow velocity and flow gradient in the ascending thoracic aorta. Algorithm also determines if aliasing is present. Algorithm returns all measurements, which could populate the report (possibly within a supplement containing other quantitative data). Algorithm flags abnormal values.Considerations for Dataset Development
Procedures(s): MRI, Cardiac
View(s): CMR velocity-encoded phase contrast images, ascending thoracic aorta
Sex at Birth: {Male, Female}
Body Mass Index: [10,52]
Body Surface Area (m2): [1.0,3.5]
Aortic diameter (mm): [10,40]
Intervention: {Congenital heart disease repair, mitral valve replacements}
Disorder: {Congenital heart disease, Ventricular septal defects}
Technical Specifications
Inputs
DICOM Study
| Procedure | MRI, Cardiac |
| Views | CMR velocity-encoded phase contrast images, ascending thoracic aorta |
| Data Type | DICOM |
| Modality | MR |
| Body Region | Chest |
| Anatomic Focus | Heart |
Primary Outputs
Ascending Aortic Flow Rate
| RadElement ID | RDE209 |
| Definition | Measurement of net flow volume in the ascending thoracic aorta above the aortic valve |
| Data Type | Numeric |
| Value Set |
|
| Units | mL/sec |
Secondary Outputs
Flow Gradient
| RadElement ID | |
| Definition | Pressure of aortic flow |
| Data Type | Numeric |
| Value Set |
|
| Units | Pa |
Presence of Aliasing
| RadElement ID | |
| Definition | Presence of aliasing |
| Data Type | Categoric |
| Value Set | 0-Unknown 1-Aliasing present 2-Aliasing absent |
| Units | N/A |
Related Datasets
No known related public datasets at this time, please alert us if you know of any.