Brown C M, Holmes J R
Equine Vet J. 1978 Oct;10(4):207-15. doi: 10.1111/j.2042-3306.1978.tb02263.x.
The paper reports the changing pressure values during the cardiac cycle recorded from various chambers of the heart and great vessels using 2 catheter-mounted transducers, 9 cm apart. Pulse pressures are calculated. Transvalval pressure differences are determined taking account of the effect of hydrostatic pressure between the 2 sensors. The effects of some valvular lesions and arrhythmias and of changes in intrathoracic pressure are also described.