4DMedical has received FDA clearance for its CT-based ventilation product (CT LVAS(TM). CT LVAS, designed for use with computed Tomography scans, joins 4D Medical's XV LVAS(R) imaging software cleared for use with fluoroscopy In the United States. The FDA clearance for CT LVAS dovetails with the upcoming 4DMedical product, CT:VQ(TM).

CT:VQ will enable quantitative perfusion (blood flow) data and visualizations to be extracted from CT scans. Standard CT images provide clinicians with structural detail about patients' lungs--from which they try to inferred information about disease and function. CT LVAS adds a wealth of data on lung performance on top of the structural detail of CT scans.

This capability fills an information gap that enables radiologists to provide the objective, data-driven information that could materially inform diagnosis and treatment options. CT LVAS software processes existing CT scans using sophisticated algorithms derived from aerospace technology. These highly detailed reports include color-coded images of regional airflow and lung ventilation--overlayed on the patient's CT scan.

CT LVAS uses a software-as-a-service model and requires no new capital equipment. Scans from existing CT equipment are uploaded for processing, where they are analyzed and returned to the radiologist as the Ventilation Report. CT LVAS measures lung ventilation in tens of thousands of locations in the lungs.

The Regional Ventilation Visualizations provide region-specific ventilation at deep inspiratory breath-hold for a mid-coronal slice and threeaxial slices--Upper, Middle, and Lower. The regional ventilation data is quantified in lung volume change and regional lung ventilation heterogeneity.