An MDT Picture of a living heart reveals details such as stents, tiny cylinders placed inside a lateral anterior descending (LAD) artery to keep blood flowing.

Technology in wide use to conjure up detailed snapshots of a beating heart can mislead doctors and unnecessarily frighten patients, according to new research led by Cleveland Clinic imaging expert Mario J. Garcia, M.D.

A growing number of his patients fall prey to a fairly common glitch in many of the devices: false positives. That means results from a scan point to heart disease even though the patient is fine — although often poorer by the hundreds of dollars it cost to get the faulty test. …

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