Calcium Scoring of the Aortic Valve before TAVR
| Purpose | Identify the aortic valve and measure the Calcium score, and suggest follow up care(TAVR vs. SAVR) in routine TAVR CT reports. |
| Tag(s) | |
| Panel | Cardiac |
| Define-AI ID | 19040035 |
| Originator | Moritz H. Albrecht |
| Lead | Moritz H. Albrecht |
| Panel Chair | Carlo De Cecco |
| Panel Reviewers | Cardiac Panel |
| License | |
| Status | |
| RadElement Set | RDES129 |
Clinical Implementation
Value Proposition
More recently, the value of Calcium scoring for the decision TAVR vs. SAVR has been particularly recognized and implemented in guidelines. However, the measurement adds another work burden in manual 3D post-processing, despite the assumption that calcium scoring of the aortic valve could be easier performed than for the coronary arteries.The amount of calcification of the aortic valve and left ventricular outflow tract can be quantified taking the Agatston convention into account. The algorithm will automatically identify the aortic valve and measure the Calcium score, and suggest the result (TAVR vs. SAVR) in routine TAVR CT reports- which will likely increase the efficiency of clinicians, improve patient outcomes, and minimize patient risk.
Narrative(s)
TAVR CT reports will be more comprehensive in terms of quantitative information and the radiologist/ cardiologist can focus more on qualitative criteria when analyzing the TAVR CT dataset prior to the procedure.Workflow Description
Patient receives TAVR CT examination. Algorithm segments image to identify the aortic valve on usual TAVR CT examinations. Algorithm detects calcifications in the volume of interest. For each calcification, the algorithm quantifies the amount of calcium according to the Agatston convention. Following which, the algorithm then provides the calcium score and cautiously suggests the TAVR or SAVR approach.Considerations for Dataset Development
| Procedure(s) | Gated CTA of the chest |
| View(s) | CCTA Any volumetric imaging data set |
| Sex at Birth | {Male, Female} |
| Age | [18,70] |
| History | Severe Aortic stenosis |
| CT | Must be gated with multiple diastolic and systolic phases of the cardiac cycle |
| Contrast Material | {CT w/ IV arterial-phase contrast, w/o arterial-phase contrast} |
| Position | {Weight bearing, nonweight bearing} |
Technical Specifications
Inputs
| DICOM Study | |
| Procedure | TAVR CT |
| Views | N/A |
| Data Type | DICOM |
| Modality | CT |
| Body Region | Chest |
| Anatomic Focus | Heart |
Primary Outputs
| Detect Calcifications of interest | |
| RadElement ID | RDE851 |
| Definition | Detect calcification in the region of interest |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
| Calcium score according to Agatston convention | |
| RadElement ID | RDE852 |
| Definition | Calcium score according to Agatston convention |
| Data Type | Numeric |
| Value Set |
|
| Units | N/A |
| Recommended treatment with respect to calcification | |
| RadElement ID | RDE853 |
| Definition | Recommended treatment with respect to calcification |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
Related Datasets
No known related public datasets at this time, please alert us if you know of any.