Human Heart Pulse Wave Responses Measured Simultaneously at Several Sensor Placements by Two MR-Compatible Fibre Optic Methods

Table 1

Positive peak times and pulse transit times (PTT) compared to ECG.

Peak times (s)
ECG	18.412	19.165	19.919	20.679	21.433	22.183	22.936	23.683	24.415	25.144	25.868	26.585	27.304
Right hand	18.794	19.543	20.298	21.062	21.820	22.558	23.309	24.061	24.799	25.528	26.250	26.965	27.683
Left hand	18.691	19.440	20.190	20.951	21.710	22.460	23.210	23.960	24.690	25.420	26.145	26.865	27.580
Left leg	18.659	19.415	20.170	20.93	21.691	22.434	23.19	23.942	24.668	25.397	26.122	26.834	27.552
Forehead	18.791	19.528	20.257	21.02	21.788	22.561	23.318	24.034	24.777	25.514	26.215	26.916	27.664
PTT (s)
ECG	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000
Right hand	0.382	0.378	0.379	0.383	0.387	0.375	0.373	0.378	0.384	0.384	0.382	0.380	0.379
Left hand	0.279	0.275	0.271	0.272	0.277	0.277	0.274	0.277	0.275	0.276	0.277	0.280	0.276
Left leg	0.247	0.250	0.251	0.251	0.258	0.251	0.254	0.259	0.253	0.253	0.254	0.249	0.248
Forehead	0.379	0.363	0.338	0.341	0.355	0.378	0.382	0.351	0.362	0.370	0.347	0.331	0.360