Journal: BJA Open
Article Title: Using the TI.VA algorithm to titrate the depth of general anaesthesia: a first-in-humans study
doi: 10.1016/j.bjao.2023.100203
Figure Lengend Snippet: TI.VA prototype. The components of the first prototype system for managing the TI.VA algorithm are shown. The MacBook® screen shows the user interface constructed using a number spreadsheet (Apple Inc., Cupertino, CA, USA). The same stand holds the BIS™ monitor (Medtronic, Dublin, Ireland) and the Alaris® Gateway Workstation (Becton-Dickinson, Co., Franklin Lakes, NJ, USA), with two target-controlled infusion pumps dedicated to propofol and remifentanil administration. Communication of the Alaris® workstation with the MacBook is enabled using an Ethernet port, while communication with the bispectral index system is achieved using an RS232 port. The CNAP® monitor (CNSystems Medizintechnik GmbH, Graz, Austria) is connected via a separate port. In this case, the implementation of a communication interface with numbers is more problematic. Thus, we ultimately decided on optical character recognition technology guaranteed by a camera mounted in front of the monitor. The monitor screen is masked to optimise the recognition process. Data (i.e. mean arterial pressure and heart rate) are shown in the window directly in front of the camera. TI.VA, total intravenous anaesthesia.
Article Snippet: The TI.VA algorithm and the additional functions described above were implemented through a number spreadsheet running on a MacBook Air computer (Apple Inc., Cupertino, CA, USA).
Techniques: Construct