Table 2.

Timing of events at the level of the left ventricle and the common carotid artery

Event pairing	Timing of events (% of heart cycle)			Mean difference 95% CI	P‐value	ICC [95% CI]	P‐value
	CALM point		Comparison event
CALM point A with
Onset of septal movement	3.30 ± 2.31	vs.	5.10 ± 2.47	−4.58 to 0.98	0.18	−0.32 [−0.77 to −0.35]	0.83
Apical prerotation peak	4.57 ± 1.99	vs.	1.00 ± 5.16	−7.08 to 2.22	0.25	0.17 [−0.61 to 0.78]	0.34
Basal prerotation peak	2.70 ± 3.57	vs.	12.90 ± 3.57	−14.13 to −6.27	<0.01	−0.50 [−0.85 to 0.15]	0.94
CALM point B with
Arrival of blood velocity wave	9.83 ± 3.03	vs.	10.73 ± 1.41	−2.19 to 0.39	0.17	−0.07 [−0.42 to 0.29]	0.65
Peak basal prerotation velocity	9.50 ± 3.31	vs.	7.60 ± 1.78	−0.83 to 4.63	0.15	−0.03 [−0.62 to 0.58]	0.54
CALM point C with
Peak blood velocity	18.57 ± 3.98	vs.	18.53 ± 2.81	−0.80 to 0.86	0.94	0.79 [0.61 to 0.90]	<0.01
Peak basal rotation velocity	18.30 ± 4.85	vs.	20.30 ± 4.69	−5.66 to 1.66	0.25	0.43 [−0.24 to 0.82]	0.10
CALM point D with
Peak septal displacement	42.60 ± 6.42	vs.	39.40 ± 5.72	−0.55 to 6.95	0.09	0.63 [0.04 to 0.89]	0.02
Peak apical rotation	41.00 ± 7.81	vs.	35.33 ± 5.79	2.23 to 9.10	<0.01	0.79 [0.31 to 0.95]	<0.01
Peak basal rotation	41.80 ± 6.12	vs.	37.30 ± 5.66	1.44 to 7.56	<0.01	0.74 [0.24 to 0.93]	<0.01

CALM, Carotid artery longitudinal motion; point A, onset of first deflection in the retrograde direction; point B, onset of first anterograde movement; point C, peak anterograde displacement; point D, peak retrograde displacement; 95% CI, 95% confidence interval. Bolded events are interpreted as occurring at a similar time. Values are means ± SD.

CALM points differ slightly in timing as analysis of data was performed on simultaneously collected heart cycles when possible.