New scan spots heart disease years before symptoms
A new imaging technology called fast-RSOM lets researchers see the smallest blood vessels in the body without invasive procedures. It can detect early dysfunction in these vessels — a quiet warning sign of future heart disease — long before symptoms appear. Unlike traditional risk estimates, it measures real changes happening in the body. The portable system could one day be used in routine checkups to catch heart risks earlier.
Researchers at Helmholtz Munich and the Technical University of Munich (TUM) have created a new medical imaging tool called "fast-RSOM" that can capture highly detailed images of the body's smallest blood vessels directly through the skin, without invasive procedures. By making it possible to detect early signs of cardiovascular risk, the technology could allow doctors to act sooner, tailor treatments more precisely, and support better long-term heart health. Some of the earliest warning signs of cardiovascular disease begin in the body's tiniest blood vessels. These early changes involve subtle problems in how blood vessels widen and narrow, a condition known as microvascular endothelial dysfunction (MiVED). Until now, there has been no precise, non-invasive way to directly observe or measure these changes in people.
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