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Electrocardiography cable/leads including leads designed to produce a very small, almost negligible, attenuation to the passage of x-rays. These devices consist of a cable and several (e.g., 3, 5, 12) leads completely isolated except at the electrode end (known as patient leads); they are intended for connection between the patient electrodes and an electrocardiograph or cardiac monitor. Radiolucent electrocardiography cable/leads are mainly used for recording and/or displaying in real time the waveforms (i.e., electrocardiograms) of the biologic electric signals from the heart in cardiac procedures (e.g., catheterization) that require real-time radiographic observation.
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