California Doctors Turn to 4D Lung Scans to Battle “Long COVID”
A bunch of California physicians are now pulling out the big guns—24‑year‑old X‑rays are getting a fancy upgrade. Thanks to a tech called 4DMedical, they can actually see how air moves through a patient’s lungs, painting a vivid picture of damage that plain CTs or X‑rays just miss.
What Makes 4D Medical So Special?
- Four Dimensions: It captures how air zips in and out during the four breathing phases.
- The tech needs only 20 seconds of a patient taking a natural breath.
- It crunches the video into mathematical math to map airflow across the entire lung.
Andreas Fouras, the founder, explains it like he’s telling a story: “We take a short clip, crunch it, and voilà, we see every puff of air swirling.”
From Green to Red: Spotting the Trouble Spots
In one demonstration, Dr. Ray Casciari, a pulmonologist at St. Joseph Hospital in Orange, drizzled a lungs image with color. The green swath represents healthy, average air flow. A glaring red patch? That area’s as dead a breeze as a desert—no ventilation whatsoever.
“It’s literally where the virus left its mark,” Casciari says, pointing out the green‑to‑red contrast. “We’re now able to quantify a vague haze of damage that we used to only suspect.”
How the System Works
The cornerstone of 4D’s magic is turning regular X‑ray sequences into quantitative data. Think of starting with ordinary phase‑by‑phase images and layering on computational grit that produces a detailed scan. Fouras puts it simply: “We’re tearing apart X‑ray videos, layering our software, and creating comprehensive imaging.”
Ideal Candidates: Long‑COVID Survivors
Those who have endured lingering breathing issues are the prime target. The tech shines brightest where lingering damage lingers, giving doctors a sharper view and, hopefully, a quicker path to recovery.
Across the U.S., hospitals are giving 4DMedical a run‑through, testing the waters of this next‑gen approach. And, if these findings hold up, we might finally start ending the mystery of “lung fog” that keeps some people out of work and gasping for a breath of life.
