Pulmonary Veins Mapping Preablation Planning for CT
| Purpose | Document pulmonary veins and anatomy for ablation planning |
| Tag(s) |
|
| Panel | Cardiac |
| Define-AI ID | 18040017 |
| Originator | David Wymer |
| Panel Chair | Carlo De Cecco |
| Panel Reviewers | Cardiac Panel |
| License | |
| Status | Published |
Clinical Implementation
Value Proposition
Automate the pulmonary vein measurements and pertinent cardiac anatomy to save the radiologist time from manually measuring.Narrative(s)
A patient presents with atrial fibrillation (afib) and needs an ablation procedure based on clinical needs and/or failure of medical control.Workflow Description
A patient receives pre-afib ablation contrast-enhanced CT (CE-CT) and triggers the algorithm. The algorithm retrieves input from imagery and electronic health record data such as age, gender, and symptom chronicity. The algorithm executes and measures pulmonary veins at the insertion to the left atrium. The algorithm then evaluates for atrial appendage thrombus and measures left atrial size, thickness of atrial septum, and left ventricular size. After evaluating for mitral and aortic valve calcification, the algorithm measures the proximity of vein ostia to the esophagus and aorta. The algorithm returns all measurements, along with the degree of valvular calcifications, positive and negative atrial thrombus, and esophagus and aorta proximity to vein ostia. The algorithm suggests the likelihood of chronic afib due to a non-atrial cause (mitral/aortic stenosis/regurgitation).Considerations for Dataset Development
Procedures(s): CE-CT Heart
Sex at Birth: {Male, Female}
Age (years): [0,90]
Afib Chronicity: varied frequencies
Frailty Index: varied
Comorbidities: {heart failure, pulmonary artery hypertension}
Technical Specifications
Inputs
DICOM Study
| Procedure | CE-CT Heart |
| Data Type | DICOM |
| Modality | CT |
| Body Region | Chest |
| Anatomic Focus | Heart |
Primary Outputs
Pulmonary Vein Diameter
| RadElement ID |
| Definition | Diameter of pulmonary vein (mm) |
| Data Type | Categorical |
| Value Set |
|
| Units | mm |
Interatrial Septal Thickness
| RadElement ID | |
| Definition | Interatrial septal thickness (mm) |
| Data Type | Numeric |
| Value Set |
|
| Units | mm |
Presence of Atrial Thrombus
| RadElement ID | |
| Definition | Determine the presence of atrial thrombus |
| Data Type | Categorical |
| Value Set | 0 – Unknown 1 – Present 2 –Absent |
| Units | N/A |
Presence of Valvular Calcifications
| RadElement ID | |
| Definition | Determine the presence of valvular calcifications |
| Data Type | Categorical |
| Value Set | 0 – Unknown 1 – Present 2 –Absent |
| Units | N/A |
Vein Ostia Proximity to Esophagus
| RadElement ID | RDE284 |
| Definition | Measure the distance between the vein ostia and esophagus(cm) |
| Data Type | Numeric |
| Value Set |
|
| Units | cm |
Vein Ostia Proximity to Aorta
| RadElement ID | RDE285 |
| Definition | Measure the distance between the vein ostia and aorta (cm) |
| Data Type | Numeric |
| Value Set |
|
| Units | cm |
Secondary Outputs
Likelihood of Ablation Success
| RadElement ID | RDE286 |
| Definition | Estimate the probability of ablation success |
| Data Type | Numeric |
| Value Set | [0,1] |
| Units | % likelihood of success |
Related Datasets
No known related public datasets at this time, please alert us if you know of any.