Cardiac monitoring of dogs via smartphone mechanocardiography: a feasibility study

Table 1 The estimated HR results of the different methods (M1–3) and ECG ground truth HR regarding the clinical trial

(CT-A) selected measurement	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10
Peak detection (HR) (bpm) (M1)	94	86	110	77	89	96	112	95	88	94
Deviation from ECG (in bpm)	28	0	47	3	20	2	5	8	4	44
Single-axis autocorrelation HR (bpm) (M2)	67	79	64	80	69	93	110	86	82	115
Deviation from ECG (in bpm)	1	7	1	0	0	5	7	1	2	23
6-axis autocorrelation HR (in bpm) (M3)	68	69	64	71	68	60	83	85	78	81
Deviation from ECG (in bpm)	2	17	1	9	1	38	34	2	6	57
ECG ground truth HR (bpm)	66	86	63	80	69	98	117	87	84	138

It can be observed that method M2 gives the lowest mean deviation from ECG. Measurements 1–2 and 4–9 are from Dobermans, while 1–2 are in a right lateral and 4–9 in a standing position. The measurements 1 and 5 are from the same dog. Measurements 3 and 10 are from Whippet and Newfoundland dog, respectively (both in a standing position)

ISSN: 1475-925X