ECG Case 137
The monitor alarms "extreme ventricular tachycardia". There are three features on this rhythm strip that suggest artefact -- can you spot them?
Tag artefact
Short path reverberation artefact
**B-lines = Short path reverberation artefact Short path reverberation artefact The ultrasound appearance of this artefact is a thin vertical bright or echogenic line that passes from the point of origin, to the deepest part of the ultrasound image. Most…
Long path reverberation artefact
There are many ultrasound artefacts. Here we discuss reverberation artefacts - Long path reverberation artefacts (also called A-lines in the lung)
Reverberation Artefacts
Reverberation Artefacts An ultrasound machine assumes a single pulse of ultrasound enters the tissues, is reflected off a structure, and returns directly to the transducer for interpretation. When this does not occur ultrasound artefacts are created. Not infrequently and ultrasound…
Mirror Image Artefacts
Mirror image artefact occur when ultrasound beam is not reflected directly back to the transducer after hitting a reflective surface