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"It's an incredible story."
That's how Dr. Justin Davies of Imperial College Healthcare NHS Trust in the UK describes the development of the iFR (instant wave-free ratio) pressure sensor, which has just been approved by the FDA for use in treating coronary artery disease.
The sensor measures the pressure drop caused by a narrowing in the artery, which helps determine whether the patient requires medication alone or needs a stent to open the artery to improve blood flow, reports the New York Times.
The standard test for measuring this pressure drop, called FFR or Flow Reserve, involved injecting a hyperemic agent, which can be expensive in parts of the world, takes time to administer (often 2-5 minutes), and can result in uncomfortable effects for the patient, including chest pain, breathlessness, and anxiety.
But iFR doesn't require a pharmacological agent.
"I remember the first time a small group of us met and looked at the results of an early study and shared the excitement of seeing that this novel approach to stenosis interrogation actually worked," says Dr. Javier Escaned, head of the Interventional Section of the Hospital Clinico San Carlos in Spain, where iFR was developed.
Researchers studied more than 4,500 patients with coronary artery disease and found that iFR
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A customized collection of grant news from foundations and the federal government from around the Web.
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Together TV, the Channel that Helps You Channel Your Inner Good
Caroline Diehl is a serial social entrepreneur in the impact media space. She is Executive Chair and Founder of the UK’s only charitable and co-operatively owned national broadcast television channel Together TV, the leading broadcaster for social change runs a national TV channel in the UK and digital platform which helps people find inspiration to do good in their lives and communities.
