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Researchers at Johns Hopkins University investigated how photoacoustic imaging could be used during cardiac interventions to reduce radiation exposure caused by conventional medical imaging techniques.
In an intervention, a catheter is inserted into a vein or artery, then threaded up to the heart to diagnose and treat heart diseases such as abnormal heartbeats. Doctors typically use fluoroscopy, a sort of x-ray movie that can show only the shadow of the catheter tip and cannot provide detailed information about depth. Fluoroscopy also requires ionizing radiation, which can be harmful to both the patient and the doctor.
The Johns Hopkins researchers tested a combination of photoacoustic imaging and vision-based robotic control….READ MORE