In this paper, we propose a system that is capable of detecting the breath rate an athlete. Furthermore, investigate equivalences with tidal volume over inclination angle thorax to analyze correlations respiratory minute which product and volume. Inertial-based sensors such as gyroscopes accelerometers are utilized thoracic extensions. To counteract interferences body movements, use two inertial sensors. One sensor attached on chest athlete, while other located back. Therefore, extensions...

Measurement of accurate tidal volumes based on respiration-induced surface movements the upper body would be valuable in clinical and sports monitoring applications, but most current methods lack precision, ease use, or cost effectiveness required for wide-scale uptake. In this paper, theoretical ability different sensors, such as inertial measurement units, strain gauges, circumference devices to determine were investigated, scrutinised evaluated. Sixteen subjects performed breathing...

The measurement of tidal volumes via respiratory-induced surface movements the upper body has been an objective in medical diagnostics for decades, but a real breakthrough not yet achieved. improvement technology through new, improved sensor systems and use artificial intelligence have given this field research new dynamic recent years opened up possibilities. Based on from motion capture system, respiration-induced motions 16 test subjects were examined, specific parameters calculated....

Adapting intelligent context-aware systems (CAS) to future operating rooms (OR) aims improve situational awareness and provide surgical decision support medical teams. CAS analyzes data streams from available devices during surgery communicates real-time knowledge clinicians. Indeed, recent advances in computer vision machine learning, particularly deep paved the way for extensive research develop CAS. In this work, a learning approach analyzing laparoscopic videos phase recognition, tool...

Abstract Demographic changes and increasing air pollution entail that monitoring of respiratory parameters is in the focus research. In this study, two customary inertial measurement units (IMUs) are used to measure breathing rate by using quaternions. One IMU was located ventral, one dorsal on thorax with a belt. The relative angle between quaternion each calculated compared frequency obtained spirometer, which as reference. A analysis both signals showed rates vary slightly (less than...

Abstract Fusing data from different medical perspectives inside the operating room (OR) sets stage for developing intelligent context-aware systems. These systems aim to promote better awareness OR by keeping every team well informed about work of other teams and thus mitigate conflicts resulting targets. In this research, a descriptive analysis collected anaesthesiology surgery was performed investigate relationships between intra-abdominal pressure (IAP) lung mechanics patients during...

The measurement of respiratory volume based on upper body movements by means a smart shirt is increasingly requested in medical applications. This research used surface motions obtained motion capture system, and two regression methods to determine the optimal selection placement sensors recover parameters from benchmark spirometry values. results (Ridge least absolute shrinkage operator (Lasso)) were compared. work shows that Lasso method offers advantages compared Ridge regression, as it...

Various measurement systems can be used to obtain dynamic circumferences of the human upper body, but each these has disadvantages. In this feasibility study we introduce a non-invasive and wearable thoracic belt measure changes thorax or abdomen. To evaluate approach, five subjects undertook various breaths disparate tidal volumes, which were measured by simultaneously motion capture system provided reference metric.The results concurred with system. A coefficient determination (adjusted...

The aim of mechanical ventilation (MV) is to provide sufficient breathing support for critically ill patients with respiratory failure in the intensive care unit (ICU). However, application inappropriate MV settings can result ventilator induced lung injury (VILI) and exacerbate dysfunction. To prevent VILI, mechanics properties such as elastance resistance be estimated at bedside guide settings. Different models or methods different information have unique advantages disadvantages. In this...

Lung mechanics measurements provide clinically useful information about disease progression and lung health. Currently, there are no commonly practiced methods to non-invasively measure both resistive elastic during tidal breathing, preventing the important provided by from being utilised. This study presents a novel method easily assess of spontaneously breathing subjects using dynamic elastance, single-compartment model. A spirometer with built-in shutter was used occlude expiration...

Smart-Shirts (and other wearable technologies) that provide vital medical data are becoming increasingly prevalent. However, obtaining accurate measurement of respiratory parameters via a Smart-Shirt requires ongoing research. In this study, various have been captured an optoelectronic plethysmograph and body using optimal set spatial sensors. Sixty-four reflective markers were fixed on compression shirt different manoeuvres performed by the subjects. analysis, Singular Value Decomposition...

The gold standard for tidal volume measurement is spirometry. Based on retrospective data, this study evaluates different geometric lung models in their ability to deliver accurate volumes from changes thoracic and abdominal circumference. showed good coefficients of determination (adjusted R <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> >0.97) compared the measured by a body plethysmograph. Tidal obtained circumference might be used...

The measurement of tidal volumes via respiration-induced upper body surface motions remains a subject research. Improved and miniaturized sensors allow smart garments to become more common increasingly used in medical diagnostics therapy monitoring. Based on the data motion capture system, regression analysis combination with bootstrapping technique showed that three circumferential one distance changes carried majority respiratory volume information. These parameters were for calculation,...

Tidal volume can be estimated using the surface motions of upper body induced by respiration. However, precision and instrumentation such estimation must improved to allow widespread application. In this study, respiration changes in parameters that recorded with inertial measurement units are examined determine tidal volumes. Based on data an optical motion capture system, optimal positions (IMU) a smart shirt for sets 4, 5 or 6 sensors were determined. The errors observed indicate...

Respiratory measurements during spontaneous breathing are usually done via spirometry or body plethysmography, which both have some limitations. A potential alternative measurement system could be a wearable smart-shirt. This may provide sufficient accuracy to suitable across several scenarios from supine critically ill patients competitive athletes training. In this study plethysmograph and motion tracking was used analyse the optimal number of absolute position sensors in smart shirt,...

Investigating the relations between surgical actions and physiological reactions of patient is essential for developing pre-emptive model-based systems. In this study, effects insufflating abdominal cavity with CO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> in laparoscopic gynaecology on respiration system were analysed. Real-time recordings anaesthesiology data five subjects acquired processed, correlation lung mechanics...

Abstract Respiratory system modelling can enable patient-specific mechanical ventilator settings to be found, and thus reduce the incidence of induced lung injury in intensive care unit. The resistance a simple first order model (FOM) pulmonary mechanics was compared with flow dependent term non-linear autoregressive (NARX) model. Model parameters were identified for consecutive non-overlapping windows length 20 breaths. analysis performed over recruitment manoeuvres 25 sedated mechanically...

Abstract Electrical Impedance Tomography (EIT), an imaging technique which operates non-invasively and without radiation exposure, provides information about ventilation- cardiac-synchronous (pulsatile) changes in the lung. It is well known, that perfusion within thorax influenced by lung volume or intrathoracic pressure. In this observational study, it shall be investigated if phenomenon can monitored EIT. Therefore, impact of amount air on pulsatile EIT signal was evaluated carrying out...

The selection of optimal positive end expiratory pressure (PEEP) levels during ventilation therapy patients with ARDS (acute respiratory distress syndrome) remains a problem for clinicians. One particular mooted strategy states that minimizing the energy transferred to lung by mechanical could potentially be used determine PEEP level. This minimization undertaken finding minimum range dynamic elastance. In this study, we compare an adapted Gauss-Newton method typical gauss newton in terms...

Abstract Analysing and fusing data from the medical devices of different disciplines (anaesthesiology surgery) inside operating rooms may promote awareness during surgical procedures. In this work, changes physiological parameters patients undergoing laparoscopic gynaecology procedures were analysed. The statistical relationship between intra-abdominal pressure airway peak was evaluated. Patients ventilated with pressure-controlled ventilation (PCV) intermittent mandatory (IMV) included....

Optoelectronic plethysmography, a non-invasive motion capture technique, calculates the tidal volume and tracks chest wall motions. This study used system compression shirt with markers embedded in anatomical landmarks as optoelectronic plethysmograph to measure trunk movement three different positions (standing, sitting, lying). The recorded data were then processed compare contribution of thoracic abdominal breathing during these positions. showed that predominates at low volumes when...