BSSLAB Localized ECG Data

Localized ECG at PCG Auscultation Sites including Respiration Data description: All the data were saved in ‘.mat’ format, and the sampling frequency was 20kHz. There are 12 folders including 12 subjects’ data. In each folder, there are 4 .mat files, named as 2-A, 1-AM, 1-AP, and 1-AT. ‘2’ and ‘1’ means experimental stage I and stage II. ‘A’, ‘P’, ‘T’, and ‘M’ means the measured auscultation sites. ‘AM’ means both two sites PCG and ECG were measured synchronously. Experimental setting: In stage I, three gel electrodes were positioned over the chest of a subject with standard Lead I as reference. The embroidered electrodes were placed next to the gel ones with Lead I as well. The other two simultaneous ECG were recorded with 10 cm inter-electrode distance (IED) at each auscultation site. Two electronic stethoscopes were put at the centre of the electrodes (auscultation points). The recording duration was 3 mins. In the meantime, a microphone was placed under the subjects’ nose to record the actual respiration as a reference. In stage II, three groups of disposable adhesive ECG sensors were placed at A site with 5 cm, 10 cm, and 15 cm IED. The recording duration was also 3 mins. More details and block diagrams can be found in [1, 2, 3]. Channel description: Stage I channels: 1: time 2: Heart Sound at site A 3: Heart Sound at site M, P, or T 4: Respiratory Signal (raw) 5: ECG Reference (Lead I) 6: ECG embroidered 7: ECG at A 8: ECG at M, P, or T. 9. Respiratory Signal (filtered) Stage II channels: 1: time 2. Null 3. Null 4. Respiratory Signal (raw) 5. ECG 5 cm 6. Null 7. ECG 10 cm 8. ECG 15 cm 9. Respiratory Signal (filtered) Reference: Bao, X., Deng, Y., Gall, N. and Kamavuako, E.N., 2020, February. Analysis of ECG and PCG Time Delay around Auscultation Sites. In BIOSIGNALS (pp. 206-213). Bao, X., Howard, M., Niazi, I.K. and Kamavuako, E.N., 2020, July. Comparison between embroidered and gel electrodes on ECG-derived respiration rate. In 2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) (pp. 2622-2625). IEEE. Bao, X., Abdala, A.K. and Kamavuako, E.N., 2020. Estimation of the Respiratory Rate from Localised ECG at Different Auscultation Sites. Sensors, 21(1), p.78.包含呼吸数据的心音（Phonocardiogram, PCG）听诊位点本地化心电图（Electrocardiogram, ECG）数据集说明：所有数据均以`.mat`格式存储，采样率为20kHz。数据集包含12个文件夹，对应12名受试者的实验数据。每个文件夹内包含4个.mat文件，命名为2-A、1-AM、1-AP及1-AT。命名中的"2"与"1"分别代表实验阶段I与阶段II；"A""P""T"与"M"代表实验采集的听诊位点；"AM"表示同时同步采集了心音（PCG）与心电图（ECG）的双位点数据。 实验设置： 阶段I中，以标准导联I作为参考，将3个凝胶电极放置于受试者胸部；同时将刺绣电极放置于凝胶电极旁，同样以导联I作为参考。其余两路同步采集的心电图（ECG）以10cm电极间距（Inter-electrode Distance, IED）在各听诊位点完成记录，两台电子听诊器分别放置于电极中心（即听诊点位）。单次录制时长为3分钟，与此同时于受试者鼻部下方放置麦克风，录制原始呼吸信号作为参考。 阶段II中，在A位点放置三组一次性黏贴式ECG传感器，电极间距分别为5cm、10cm与15cm，单次录制时长同样为3分钟。更多实验细节与框图可参见文献[1,2,3]。 通道说明： 阶段I通道： 1. 时间轴信号 2. A位点心音（PCG） 3. M、P或T位点心音（PCG） 4. 原始呼吸信号 5. 参考心电图（导联I） 6. 刺绣电极采集的心电图（ECG） 7. A位点心电图（ECG） 8. M、P或T位点心电图（ECG） 9. 滤波后呼吸信号 阶段II通道： 1. 时间轴信号 2. 空通道 3. 空通道 4. 原始呼吸信号 5. 电极间距5cm的心电图（ECG） 6. 空通道 7. 电极间距10cm的心电图（ECG） 8. 电极间距15cm的心电图（ECG） 9. 滤波后呼吸信号 参考文献： [1] Bao X, Deng Y, Gall N, Kamavuako E N. Analysis of ECG and PCG Time Delay around Auscultation Sites[C]//BIOSIGNALS. 2020: 206-213. [2] Bao X, Howard M, Niazi I K, Kamavuako E N. Comparison between embroidered and gel electrodes on ECG-derived respiration rate[C]//2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC). 2020: 2622-2625. [3] Bao X, Abdala A K, Kamavuako E N. Estimation of the Respiratory Rate from Localised ECG at Different Auscultation Sites[J]. Sensors, 2020, 21(1): 78.