BTS Biomedical > Neurology
BTS DREAM
BTS DREAM
The first system that is able to provide integrated information, based on the monitoring of spontaneous patient behavior.
Is it possible to evaluate the level of consciousness of a patient in a vegetative state?
Are there predictive elements that are able to indicate if a patient will awake from a vegetative state?
At present, the evaluation of patients in a vegetative state is often based solely on subjective observations of the patient carried out discontinuously, at pre-determined times. The inability to make continuous observations, coupled with the absence of a framework for recording the observations in a structured way, makes it difficult to correctly interpret events that reveal the clinical course and trend of a patient’s condition.
The BTS Dream Monitoring System was designed in collaboration with Bologna’s “Ospedale Maggiore” and “Associazione Amici di Luca”. It was conceived to continuously detect and measure, 24/7, the spontaneous movements of patients in a vegetative state, and to correlate them with polygraph variables (ECG, EEG, EMG, EOG, FR, SaO2) and environmental events. The purpose of movement detection is to determine the periods when the patient is most responsive and to evaluate the relationship of the movements to external events. During the long-term care and rehabilitation phase, the goal is to recognize, evaluate and increase the responsiveness of the patient to facilitate the recovery of cognitive faculties.
BTS Dream comprises a monitoring unit consisting of a vision system based on cameras, an optional device for biological signals acquisition (polygraph for polysomnography) and a unit for control, data processing and archiving.
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Monitoring of spontaneous behavior and of stimulus-response phenomenon
Using the BTS Dream system it is possible to evaluate, through continuous round the clock patient monitoring, whether infrequent responses happen in response to specific environmental events, or if they are entirely random. BTS Dream can be also used for “quantitative” patient monitoring during stimulus-response protocols.
Video recording of all motor events, synchronized with the patient’s biological parameters
The video system detects movements, takes event photos, records event timing and simultaneously sends a synchronized signal to the polygraph recorder. Another video camera continuously records the environment to document what happens in the patient’s room before, during and after the motor event occurs.
Aid to evaluate patient responsiveness
Continuous observation and the possibility to interpret the motor events quantitatively and statistically, allows one to detect the temporal windows, when the patient could be responsive and the external events able to stimulate a motor reaction.
Innovative technology
BTS Dream allows setting the threshold levels to define significant movements, which permits the rapid and accurate collection of truly relevant information. Each movement detection camera has three “active” areas, fully selectable by the user via software. Each is able to capture very rapid and subtle movements (i.e., twitches of the eyes, mouth, fingers, etc.).
BTS DREAM Control Unit
Mobile control unit comprising:
BTS DREAM Monitoring Unit
Mobile monitoring unit comprising:
BTS DREAM Software
Main features:
Grass-Technologies Polygraph
Polygraph Data Analysis Software - POLIdat analysis©, maurizi-ingegneria
Is it possible to evaluate the level of consciousness of a patient in a vegetative state?
Are there predictive elements that are able to indicate if a patient will awake from a vegetative state?
At present, the evaluation of patients in a vegetative state is often based solely on subjective observations of the patient carried out discontinuously, at pre-determined times. The inability to make continuous observations, coupled with the absence of a framework for recording the observations in a structured way, makes it difficult to correctly interpret events that reveal the clinical course and trend of a patient’s condition.
The BTS Dream Monitoring System was designed in collaboration with Bologna’s “Ospedale Maggiore” and “Associazione Amici di Luca”. It was conceived to continuously detect and measure, 24/7, the spontaneous movements of patients in a vegetative state, and to correlate them with polygraph variables (ECG, EEG, EMG, EOG, FR, SaO2) and environmental events. The purpose of movement detection is to determine the periods when the patient is most responsive and to evaluate the relationship of the movements to external events. During the long-term care and rehabilitation phase, the goal is to recognize, evaluate and increase the responsiveness of the patient to facilitate the recovery of cognitive faculties.
BTS Dream comprises a monitoring unit consisting of a vision system based on cameras, an optional device for biological signals acquisition (polygraph for polysomnography) and a unit for control, data processing and archiving.
Request information
Monitoring of spontaneous behavior and of stimulus-response phenomenon
Using the BTS Dream system it is possible to evaluate, through continuous round the clock patient monitoring, whether infrequent responses happen in response to specific environmental events, or if they are entirely random. BTS Dream can be also used for “quantitative” patient monitoring during stimulus-response protocols.
Video recording of all motor events, synchronized with the patient’s biological parameters
The video system detects movements, takes event photos, records event timing and simultaneously sends a synchronized signal to the polygraph recorder. Another video camera continuously records the environment to document what happens in the patient’s room before, during and after the motor event occurs.
Aid to evaluate patient responsiveness
Continuous observation and the possibility to interpret the motor events quantitatively and statistically, allows one to detect the temporal windows, when the patient could be responsive and the external events able to stimulate a motor reaction.
Innovative technology
BTS Dream allows setting the threshold levels to define significant movements, which permits the rapid and accurate collection of truly relevant information. Each movement detection camera has three “active” areas, fully selectable by the user via software. Each is able to capture very rapid and subtle movements (i.e., twitches of the eyes, mouth, fingers, etc.).
BTS DREAM Control Unit
Mobile control unit comprising:
- Laptop for data configuration, management, processing and archiving
- LCD TFT 22” monitor
- Video server to transmit video data to an IP address
- Isolation transformer
BTS DREAM Monitoring Unit
Mobile monitoring unit comprising:
- 3 orientable cameras, 2 for movement detection and 1 for the video shoot of the environment
- Poligrafo site
- Multidirectional microphone for audio environment recording
BTS DREAM Software
Main features:
- Remotely control video camera: angle of view, zoom, image quality
- Adjust movement detection windows: define up to three independent subareas for each video camera, and control detection sensitivities and movement thresholds
- Process video in real-time: compression, analysis to detect motor events
- Set video player mode: continuous, frame-by-frame, fast-forward to a motor event
- Record snapshots of motor events
- Generate tables and graphs of motor events
- Backup data
Grass-Technologies Polygraph
- 16 analog input channels, expandable to 32
- 16-bit signal resolution
- Sampling acquisition frequency: 1 Hz – 1 KHz for each channel
- Bio-signal visualization (real-time and off-line, scroll, zoom)
- FFT Analyses, trend analyses
- Sleep staging
- Scoring
- Automatic analyses: respiratory events, desaturation, EMG bursts, snoring events, heart rate
- Automatic reports: sleep-wake cycles, breathing disturbances, O2 saturation, correlation of REM/NREM sleep with body position, selected graphics, trend, events, hypnogram and information about singlechannel parameters (including amplitudes, times and latencies)
Polygraph Data Analysis Software - POLIdat analysis©, maurizi-ingegneria
- Reading file in EDF (European data format)
- Visualization of trial parameters saved in the EDF file header
- Clinical protocol creation/modification
- “Marker” traces analysis and association with protocol events
- Acquired signal analysis
- Choice of the reference data range (Baseline)
- Data artefacts location and recording of the correspondent temporal intervals
- Selection of the sequences related to the stimulus-events to elaborate
- Temporal representation and static elaboration (average and st.dev) of the selected sequences
- Estimation of the instantaneous cardiac frequency
- Estimation of the instantaneous breathing frequency
- Estimation of the power spectrum in the selected sequences
- Comparison among power spectrum of the same data sequences in correspondent time intervals
- Comparison among power spectrum of different data sequences in successive time intervals.
- Synchronization with BTS Dream for spontaneous motor events analysis.