Aortic Valve Analysis
| Purpose | Automate aortic valve measurements |
| Tag(s) | |
| Panel | Cardiac |
| Define-AI ID | 18040019 |
| Originator | Carlo De Cecco |
| Panel Chair | Carlo De Cecco |
| Panel Reviewers | Cardiac Panel |
| License | |
| Status | Public Commenting |
Clinical Implementation
Value Proposition
Measurement of the aortic valve opening area is an important parameter to assess valve stenosis. Cardiac CT angiography (CCTA) allows for accurate aortic valve morphological and functional assessment. Automated aortic valve area measurement would save the interpreting physician time via elimination of manual measurements, would prevent detection errors, and would provide structured quantitative data, which could be used in later studies or risk-stratification schemes.Narrative(s)
All patients undergoing CCTA with functional data should have automated quantification of the aortic valve opening area if data are available, which may then be automatically populated into the radiology report or a report supplement.Workflow Description
A patient receives electrocardiogram (ECG)-synchronized CTA of the chest. An algorithm retrieves input for the imaging data set and relevant electronic medical record data, including age, gender, and body surface area (mL/m2). The algorithm then determines the best single diastolic and single systolic phases of CT with the least motion artifact and performs the measurements defined below on systolic phases. Once the maximum aortic valve opening area is measured, all measurements are returned to the radiologist.Considerations for Dataset Development
Procedures(s): ECG-synchronized cardiac CT
View(s): CCTA: Any volumetric imaging data set
Sex at Birth: {Male, Female}
Age: [15,90]
History: Aortic stenosis
CT: Must be gated with multiple diastolic and systolic phases of the cardiac cycle
Contrast material: CT w/ IV arterial-phase contrast
Position: {Weight bearing, nonweight bearing}
Technical Specifications
Inputs
DICOM Study
| Procedure | ECG-synchronized cardiac CT |
| Views | CCTA: Any volumetric imaging data set |
| Data Type | DICOM |
| Modality | CT |
| Body Region | Chest |
| Anatomic Focus | Heart |
Primary Outputs
Best Systolic Phase
| RadElement ID | |
| Definition | Systolic phase |
| Data Type | Numeric |
| Value Set | [0,100] |
| Units | Percentage of cardiac cycle in systole |
Best Diastolic Phase
| RadElement ID | RDE288 |
| Definition | Diastolic phase |
| Data Type | Numeric |
| Value Set | [0,100] |
| Units | Percentage of cardiac cycle in diastole |
Aortic Valve Opening Area
| RadElement ID | |
| Definition | Aortic valve opening area |
| Data Type | Numeric |
| Value Set |
|
| Units | mm2 |
Related Datasets
No known related public datasets at this time, please alert us if you know of any.