Which of the following instrument is used for recording the chest-wall movements over the apex of heart?
(a) Apexcardiograph
(b) Ballistocardiograph
(c) Electro-oculograph
(d) Electro-retinograph
I had been asked this question by my college professor while I was bunking the class.
This is a very interesting question from Catheterization Laboratory Instrumentation in section Patient Monitoring System of Biomedical Instrumentation