The cardiologist who decided the ICU shouldn't have to wait fifteen minutes to find out what the heart is doing.
Founder & CEO, ImaCor, Inc. / hemodynamic ultrasound (hTEE)
Still teaching at the bedside. Roth runs bedside training for ICU teams himself - a founder who never stopped being a clinician.
In a critical care unit, the most dangerous number is the one that's already fifteen minutes old. Scott Roth built a company around that specific frustration. As founder and CEO of ImaCor, he made hemodynamic ultrasound - hTEE - a way to point a miniaturized probe at a patient's heart and watch its filling and function change in real time, instead of waiting on a lab to print results that describe a moment that has already passed.
The signature object is small and stubbornly clever: the ClariTEE, a disposable transesophageal probe thin enough to stay indwelling for up to 72 hours. Three days of being able to glance at the heart, episodically, without re-inserting anything. That is the whole pitch, and it is not a small one. It turned an intermittent test into something closer to a monitor.
Roth did not arrive at this from a lab bench. He spent roughly two decades in private practice reading echocardiograms on Long Island, and served as Director of Adult Echocardiography at the Harris Chasanoff Heart Institute at Long Island Jewish Medical Center. He helped start the New York Echocardiography Society as a founding board member. He knew the image, the limits of the image, and exactly when clinicians wished they had one and didn't.
In 2004 he co-founded ImaCor with Steven Evans, MD and Harold Hastings, PhD. The work was slow in the way medical devices are slow - FDA clearance, peer-reviewed evidence, a $5.5M Series A in 2009 - and the company stayed on Jericho Turnpike rather than chasing a coast. The payoff was a category that didn't exist before: continuously available, direct cardiac visualization for the sickest patients in the building.
Then in June 2022, ImaCor and Clarius Mobile Health put that view in a 22-ounce device and called it the Zura Handheld - billed as the world's first handheld TEE system, FDA cleared, running off a phone or tablet. The echo lab, which used to be a room, became something a clinician could carry to the bedside.
The choice of partner says something about how Roth thinks. ImaCor went with Clarius, he explained, "because it delivers the highest image quality for the best patient care" - a clinician's priority, not a procurement spreadsheet's. The handheld runs on the Clarius Ultrasound App across Apple and Android, which means the system Roth spent years building no longer lives on a cart in the corner of the unit. It travels with whoever is on shift.
What's notable is how single-minded the whole arc has been. hTEE is, in Roth's framing, "the first and only critical care solution enabling clinicians to optimize cardiac performance with continuously-available, direct cardiac visualization over time." That is a long sentence describing one idea: look at the heart, keep looking, decide faster. Most of medicine reaches the heart through proxies - pressures, labs, a number on a screen that infers what the muscle is doing. Roth's bet was that direct visualization, made cheap and repeatable, beats the proxy.
The evidence builds slowly, which suits him. ImaCor's case for hTEE leans on peer-reviewed studies and on the unglamorous metric of patients served - more than twenty thousand and counting. In 2023 the company joined the Innovators' Network at the American Heart Association's Center for Health Technology & Innovation, the kind of validation that doesn't trend but does open doors inside hospitals.
Co-founded ImaCor with Steven Evans, MD and Harold Hastings, PhD - a physician, another physician, and a mathematician walking into critical care.
Raised $5.5M to push hemodynamic ultrasound from idea to cleared product. Patient, unglamorous, necessary.
ClariTEE cleared to remain indwelling for up to three days - the feature that turned an occasional test into something like a monitor.
With Clarius, launched what they call the world's first handheld TEE system. 22 ounces. Runs off a phone.
ImaCor joined the American Heart Association's Center for Health Technology & Innovation network.
Roth still teaches, running a clinical series where he sketches ICU cases and argues today's patients aren't the ones he treated 20 years ago.
"A high-risk patient's hemodynamic status changes dramatically in a matter of minutes, often while clinicians are waiting for test results they submitted 15 minutes ago."
"The Zura Handheld provides instant and accurate information to guide patient management and it's proven to save lives."
"We chose to partner with Clarius for our handheld solution, because it delivers the highest image quality for the best patient care."
Plenty of physicians have an idea for a device. Far fewer spend the next twenty years carrying it through clearance, evidence, and the slow trust-building that hospitals demand. Roth's title reads "Founder & CEO," but the through-line is that he stayed a teacher. ImaCor's own About page pictures him running bedside training for a multi-disciplinary team, and his recurring "Whiteboard Lessons with Roth" series exists to argue a single uncomfortable point: the critically ill patient in front of you today is not the one the textbooks were written for.
That instinct - explain it, draw it, prove it - shows up in how he talks about the product. He doesn't reach for the language of disruption. He reaches for the moment a clinician is standing over a deteriorating patient, waiting on results that describe a body fifteen minutes in the past. Fix that gap, and you change the decision. Change the decision, and you change the outcome. The probe is just the mechanism.
It is also worth noticing what he did not do. He did not move the company to a fashionable coast or rename it something abstract. ImaCor stayed on Jericho Turnpike on Long Island, near the hospitals and the practice where the problem first announced itself. The founding team - two physicians and a mathematician, Steven Evans and Harold Hastings - reflected the same mix of clinic and rigor that the product needed. Two decades on, the bet looks less like a gamble and more like patience.
WATCH
Roth's company explains the whole idea in plain language - including "What is hTEE?"
What is hTEE? → ImaCor channel →The cardiologist who made echocardiography continuous. Worth a forward.