Technical Problems: Difference between revisions

[[Image:Noise_move.png|thumb| Movement artifacts]]

[[Image:ECG_Parkinson.png|thumb| Increasing movement artifacts in a Parkinson patient. The patient was in sinus rhythm! (which doesn't show on this short recording)]]

[[Image:BaselineDrift.png|thumb| Baseline drift. The amplifier in the ECG machine has to re-find the 'mean'. This often occurs right after lead connection and after electric cardioversion.]]

[[Image:cardioversion_from_afib.jpg|thumb| Cardioversion from atrial fibrillation to sinus rhythm, with clear baseline drift.]]

[[Image:electric_noise_ecg.png|thumb| Electrical interference from a nearby electrical appliance. A typical example is a 100 Hz background distortion from fluorescent lights. Not to be confused with [[arrhythmias#atrial fibrillation|atrial fibrillation]].]]

[[Image:electric_noise_ecg2.jpg|thumb| Another example of an artefact caused by an electrical appliance. The patients rhythm is regular. This strip shows 10 QRS complexes.]]