A dataset of clinically recorded radar vital signs with synchronised reference sensor signals

In a previous publication the database of our phase 0 study on the feasibility of non-contact vital signs monitoring was published. Based on the data it has been shown that besides pulse and respiration, radar systems are also capable to measure the heart sounds of the test persons. The heart sound offers a significant advantage when trying to measure the heartbeat as precisely as possible, as it has a very concise and sharp morphology. This precision is, e.g., very important for determining the parameters of heart rate variability.<br>Following a successful phase 0, a clinical evaluation of the radar has been planned and performed. In phase 1, 30 healthy subjects were measured with the radar and a synchronised reference device, the so-called Task Force Monitor. In addition to non-contact continuous blood pressure, the Task Force Monitor can measure ECG, ICG and impedance. It also evaluates the raw signals and determines additional values such as heart rate, stroke volume, cardiac output, thoracic fluid content, total peripheral resistance, and many more.<br>Besides a resting scenario, scenarios such as the Valsalva maneuver, tilt table test or breath holding were performed to evoke different triggers of the autonomic nervous system. The measurements were performed and monitored by medical professionals at the university hospital Erlangen. The study was approved by the ethics committee of the Friedrich-Alexander-Universität Erlangen-Nürnberg (No. 85_15B). All research was performed in accordance with relevant guidelines and regulations. The informed consent was obtained from all subjects in human trials.<br><br>Due to size constrains the dataset is split in three zip files. Download the files and unzip them in one folder using a tool like "7zip" to get the whole database.此前已在一篇发表论文中公开了我们的非接触式生命体征监测（non-contact vital signs monitoring）可行性零期（phase 0）研究的数据库。基于该数据集的分析结果表明，除脉搏与呼吸外，雷达系统还可采集受试者的心音。心音具备极为清晰锐利的形态学特征，这使其在高精度心率测量场景中具备显著优势，而该精度对心率变异性（heart rate variability）参数的测定至关重要。<br>在零期研究取得成功后，我们规划并开展了该雷达系统的临床评估。在一期（phase 1）研究中，我们使用雷达与同步参考设备——即所谓的Task Force Monitor——对30名健康受试者进行了数据采集。该参考设备除可实现非接触式连续血压监测外，还可采集心电图（Electrocardiogram, ECG）、心阻抗图（Impedance Cardiography, ICG）以及阻抗信号；同时可对原始信号进行分析，并计算心率、每搏输出量、心输出量、胸腔液体含量、总外周阻力等多项衍生指标。<br>除静息状态外，我们还设置了瓦尔萨尔瓦动作（Valsalva maneuver）、直立倾斜试验（tilt table test）以及屏气等多种实验场景，以诱发自主神经系统产生不同的应激反应。所有数据采集工作均由埃尔朗根大学附属医院的专业医护人员完成。本研究已通过埃尔朗根-纽伦堡弗里德里希-亚历山大大学（Friedrich-Alexander-Universität Erlangen-Nürnberg）伦理委员会批准（审批号：85_15B）。所有研究工作均严格遵循相关伦理准则与管理规范开展，人体试验已获得所有受试者的知情同意。<br>受文件大小限制，本数据集被拆分为3个压缩包。请使用"7zip"等解压工具将所有压缩包下载后解压至同一文件夹，即可获取完整数据库。