Left Ventricle Wall Motion

Purpose	Automate standard left ventricle wall motion assessment
Tag(s)	#LV Functional Assessment
Panel	Cardiac
Define-AI ID	18040011
Originator	Carlo De Cecco
Panel Chair	Carlo De Cecco
Panel Reviewers	Cardiac Panel
License	Creative Commons 4.0
Status	Published

Clinical Implementation

Value Proposition

The measurement of left ventricular (LV) function is a well-established clinical parameter that has fundamental diagnostic, therapeutic, and prognostic implications. Cardiac CT angiography (CCTA) and cardiac magnetic resonance (CMR) allow accurate LV morphological and functional assessment. Automated LV function quantification would save the interpreting physician time by eliminating manual measurements, preventing detection errors, and providing structured quantitative data, which could then be used in later studies or risk-stratification schemes.

Narrative(s)

All patients undergoing CCTA or CMR examinations should have automated quantification of LV function if data are available, which may then be automatically populated into the radiology report or a report supplement.

Workflow Description

A patient receives ECG-synchronized CCTA of the heart. An algorithm retrieves the imaging data set and may ingest additional electronic medical records (EMR) data such as age, sex, and body surface area (BSA). The algorithm calculates the local values for myocardial wall thickness during end-diastole (ED), myocardial wall thickness during end-systole (ES), and wall motion within each of the 17 myocardial regions derived from the 17 segments of the American Heart Association (AHA) model. The algorithm returns all measurements to the radiologist. ED myocardial wall thickness, ES myocardial wall thickness, and myocardial wall motion could be visualized in a 17-segment image as a color-coded polar map.

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]

 

Body Surface Area: varied

 

Heart Abnormalities: {Congenital heart disease, ventricular septal defects, congenital heart disease repair, mitral valve replacements}

 

Contrast Material: {Contrast-enhanced (CCTA), noncontrast enhanced applications}

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

Myocardial Wall Motion

RadElement ID	RDE306
Definition	Calculated subtracting ES wall thickness from ED wall thickness (mm)
Data Type	Numeric
Value Set	[0,20]
Units	mm

Related Datasets

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