†Horses where invasive blood pressure measurement from
the thoracic aorta (Ao) was available (n = 4). QH = Quarter
Horse, TB = Thoroughbred
Table 2: Comparisons between mean arterial pressure (MAP)
measured non-invasively via oscillometric technique (NIBP) at the tail
with a goal cuff width-to-tail circumference ratio of 0.25 and measured
invasively in the metatarsal artery (MT), facial artery (FA), and
transverse facial artery (TFA) in dorsally recumbent, anaesthetised
horses when individual height correction factors and a standard heart
level correction of 27 mmHg were used (n = 9 horses). The mean
difference with 95% confidence intervals (CI) and p values are
presented. An asterisk indicates equivalence with a mean difference and
95% confidence interval within ± 5 mmHg and p >
0.05 as determined via linear mixed model analysis (n = 257
paired comparisons with each peripheral site).