Physio-Lab – Quick Start Guide
Contents
1. 1200 14 49 23 000 14 51 40 000 14 53 20 000 14 54 23 000 El ii F Time 14 50 03 178 Cursor 2494 958 Value Ecgl 1562 515 Figure 5 SCP with Two Charts Containing Plots of an Ecg Waveform Quick Start Guide VivoSense Core Page 9 of 24 Ls Ecgl 2 5 ANZ Ecg2 a Zoom Last 2000 2000 a Zoom All 1200 g Refresh F5 _ a Center Range o i 5 1600 i Annotation 1600 ve Layout Ey Mowe Up 1200 E 1200 Properties Properties 1100 i 1100 14 49 23 000 14 51 40 000 14 53 20 000 14 54 23 000 a T A gt Time 14 50 58 862 Cursor 2121 687 Value Ecg 1498 65 Figure 6 Removing a Chart 1 4 Visually Navigating VivoSense Data Now we will explore the currently displayed Ecg1 waveform on the SCP Zoom First we may want to zoom in or zoom out The easiest way to zoom is to use the up and down arrow keys on your computer keyboard Make sure that the SCP is selected with the cursor click anywhere on the chart with the left mouse button and press the down arrow key several times to zoom in An alternative to the arrow key short cut is to select a desired region using the mouse This is achieved by moving the cursor to the left edge of the desired region pressing the left mouse button followed by moving the cursor to the right of the desired region and releasing the left mouse button Next select Zoom Selection in the resulting pop up context menu as displ2. 500 1000 1000 14 56 14 273 14 58 20 000 15 00 00 000 15 00 48 456 gt Figure 19 Adding an Annotation Page 21 of 24 VivoSense Quick Start Guide Layout Start Time 14 56 14 273 Duration 00 04 34 182 Session Start Time 14 49 23 Duration 00 18 16 730 a o il E OY M 4500 4000 1000 500 0 500 500 1000 14 56 14 273 14 58 20 000 15 00 00 000 15 00 48 456 1000 wr Time 14 57 44 995 Cursor 3062 112 Value Vt 1114 247 Figure 20 User Annotation Has Been Created 3 2 Moving and Re sizing Annotations Once an annotation has been added it is easy to move or resize the annotation This is completed using the annotation bar This is the bar at the top of the SCP that contains the text describing the annotation The default text is simply User Annotation This may be truncated depending on the size of the text and the current level of zoom Hover the mouse over the annotation in the annotation bar region This is the small chart like bar at the top of the SCP The cursor will change to the move c cursor Then left click on the bar and drag it to a new location Quick Start Guide VivoSense Core Page 22 of 24 T To resize hover the cursor at the edge of the annotation on the annotation bar until the resize cursor appears Then left click and hold down and stretch or shrink the annotation 3 3 Annotation Manager and Properties s
3. Click on the notepad A icon on the tool bar to open the annotation manager This is displayed in Figure 21 The annotation manager may be used to navigate between annotations Select the green annotation and then look at the properties window to see the annotation properties A this point changes to the text and color may be made to customize the annotation as desired Any changes are then reflected in the annotation manager Go ahead and explore some of these changes Annotation Manager A x Visible Mame Source Remova Start Time Duration Description Event Hardw Yes 14 50 59 468 00 00 04 511 ser ANNO ATON JSE VEs 14 57 24 835 00 44 170 Event Hardw Yes 15 04 37 242 00 00 04 519 Figure 21 Annotation Manager Quick Start Guide VivoSense Core Page 23 of 24 4 Moving On This tutorial is designed to get a user quickly started and familiar with VivoSense There are of course many features that are beyond the scope of this tutorial and we suggest that the user consult the full manual for detailed descriptions of these features In general many VivoSense features follow the basic principals illustrated in this short tutorial and the user is encouraged to experiment first to report any bugs encountered continue to learn and to enjoy using the VivoSense toolbox Quick Start Guide VivoSense Core Page 24 of 24
4. aot Ser ee Se Geet Senet Gard Sar ie 24 Quick Stat Guide sss VivoSense Core Page 3 of 24 1 Getting Started The quick start tutorial explains the basic elements of VivoSense and is designed to quickly familiarize a new user with the software To maximize the value of this tutorial it is recommended that the user follow using the example file provided see section 1 2 For more detailed information please consult the full VivoSense user manual or contact Vivonoetics software support 1 1 Opening VivoSense Before using this quick start guide please ensure that VivoSense is correctly installed on your computer with either a working trial or regular license Open VivoSense by double clicking on the VivoSense shortcut icon in the Vivonoetics folder on the start menu 1 2 Opening a Sample File The entry point for this tutorial is opening a vsn file Once VivoSense is open select the File menu and the Open vsn File option as shown in Figure 1 Recent Files Clear Recent File List Print Print Preview Page Setup Exit Figure 1 Opening a vsn File The default directory for storing vsn files is My Documents Vivonoetics VivoSense Data If this is not the first time you are using VivoSense and you have previously changed the default directory please navigate to this Quick Start Guide VivoSense Core Page 4 of 24 directory and select the file Quick Start Sample Session vsn This file ships with the
5. installer and should be on your PC 1 3 Exploring VivoSense Data VivoSense supports analysis of data collected using different physiological monitoring sensor packages platforms Depending on which sensor platform being used to collect data you will first need to import the raw sensor data using the Import menu option This import creates a vsn file which can then be saved and re opened another time without the need for a repeated import This tutorial does not deal with importing raw data In order to be generic and sensor agnostic the starting point of this tutorial is thus an already imported vsn file and not a raw data file The Data Explorer Data may be viewed using the Data Explorer To open this select the file cabinet A icon on the toolbar This will display a sub window called the data explorer The top section of this window is shown in Figure 2 Data Explorer 1 x Ef 04509002 E0 Sample Session EE La Accelerometer oa Electrocardiogram La Measures la Trends AA HRV E Pulse Oximeter ba lua Raw Lo j Respiration e Law Temperature E E Figure 2 Data Explorer Sub window Top Section Quick Start Guide VivoSense Core Page 5 of 24 Data Channels The data explorer consists of Sessions and Channels A Session is the term used to describe a data file Typically files are generated as a result of a recording session A Channel is the term used in VivoSe
6. of navigating through VivoSense and will be illustrated with a few simple examples 1 L E The Properties Editor window may be accessed from the toolbar by clicking on the cog th icon or using the short cut key F4 It is important to know that the Property Editor will always display the properties of the currently active component Please note that the content of the Properties editor changes as you activate different components in VivoSense This is demonstrated by clicking on them with the right mouse button 2 1 Plot Properties There are several ways to access Plot Properties in VivoSense A convenient shortcut is also provided by simply clicking on the plot icon in the legend Click on the HR icon AL to bring up a set of properties for the HR plot as shown in Figure 16 Experiment by changing some of the plot properties In this way we can demonstrate how it is possible to dramatically change the color and appearance of the plots Try changing the properties so that the HR channel looks like the one in Figure 17 As you can see editing properties is quick and easy and the results are reflected by the application instantly regardless of the type of property that is being edited pe HR El Data Auto Scale False Y Lines Line Color MN Black Line Staircase True Line Style Solid Line Width 1 E Points Point Color MN DarkBlue Point Size 5 5 Point Style _ None HO Spikes Spike False Spike Color ia Black Spike Styl
7. Remember this is achieved by right clicking on a chart and selecting Zoom All Consider that you may want to re center the HR channel after zooming out Browse the data explorer to the Electrocardiogram gt Trends folder and select the Trend HR channel This is Tre a trend channel and is denoted by the trend icon del Double click on this channel to display the HR trend The resulting channel is a staircase waveform showing one minute median averages of the heart rate channel In the next chapter we will learn how to change various trend properties such as the trend type and duration 1 9 Layouts Previously we introduced the concept of the Empty layout to clear the SCP We will now expand on this and show how custom layouts may be saved At this point there should be three charts displayed on the SCP The first chart contains two plots Ecg1 and Rwave1 The second chart contains one plot HR The third chart contains one plot Trend HR If you wish to repeatedly organize and display plots of channels in this way simply save this as a layout To do so right click anywhere on the charts and navigate to Layout gt Save as shown in Figure 12 A Zoom Last a Zoom All S Refresh F5 Center Range ll Annotation Plots p roperties Ue Figure 12 Saving Layouts This will bring up a dialog to save a layout Right click on the User folder and select New Folder A new folder will appear Right cl
8. VIVONOQETICS VivoSense Quick Start Guide VivoSense Core Vivonoetics San Diego Office 3231 Huerfano Court San Diego CA 92117 3630 Tel 358 876 8486 Fax 248 692 0980 Email info vivonoetics com Web www vivonoetics com Cautions and Disclaimer VivoSense software is not a medical diagnostic tool and is intended for research and investigational purposes only VivoSense is not intended to be or to replace medical advice or review by a physician Copyright Notice Copyright O 2011 Vivonoetics All rights reserved Quick Start Guide VivoSense Core Page 2 of 24 Table of Contents j Pam 2 141916 Jere 2 2 lo caido 4 Tol OPENIN VIVO SENSO iia iia olor 4 Ae Opening a Sample Pl dede iitado 4 13 EXplorinG ViIVOSENSE Dala rata di 5 1 4 Visually Navigating VivoSense Data oooccccccccnnccnncccnonccnncnnnnnnonnnnononnnnnonnnnnrnnnnnonanrrnnnnnnnnrrnnnnnnannens 10 1205 VIVOSEMSE Alora cali ld eee 11 1 65 Cenleringiand Scala Di a dat aed e od 12 lio ANIGASUMING Data co 13 A A 14 E OUTS RO 14 Za RrOPpemnies EONO remeros co eones rini 17 Cele IRIE POD SiC Se mada dada aan 17 22 Channel Properties deeb toyenuane Wiles aunt a era 18 dy ANO lO Sida asta iio da 20 Sale GhEAUNG ans AMMOTAUON aria alii 20 32 Moving and RE SIZING Annotations viii d 22 3 3 Annotation Manager and Properties c ccccccccsssececcesseecceeseeccseseeecseseecseuseeeseageeessaneeeesegeeesseaes 23 ds NOMI A
9. ayed in Figure 7 To display all the data simply select Zoom All Go ahead and zoom in to the data so that only about six 6 Ecg R wave spikes are displayed on the screen Quick Start Guide VivoSense Core Page 10 of 24 a Zoom Selection Il Annotation Export Figure 7 Zoom Context Menu Scroll To scroll through the data the left and right arrow keys may be used Alternatively the window slider bar at the bottom of the SCP may be used to navigate forward or backward in time 1 5 VivoSense Algorithms VivoSense contains many algorithms for deriving useful metrics or indices from basic physiological data Frequently but not always the result of an algorithm is available as another data channel These are sometimes referred to as derived channels indicating that the channel is derived from another channel Our first example of an algorithm is the VivoSense QRS detection algorithm This detects the location of an R wave spike in an Ecg waveform In VivoSense all the data processing is completed on demand This means that data is only calculated as needed for display or for export We can best demonstrate this with an example as follows Begin by navigating to the Electrocardiogram gt Markings folder in the data explorer and highlighting Rwave1 then dragging this onto the same chart as Ecg1 Chart1 The result is displayed in Figure 8 Displaying this channel required the QRS detection algorithm to be run as i
10. e Empty layout to the SCP as shown in Figure 4 Following this navigate the Data Explorer to Respiration gt Waveforms gt Volumes Double click on the Vt waveform to display a plot of this channel on the SCP This channel represents the tidal volume respiratory waveform Zoom all the way out and then zoom in twice using the down arrow key This brings you to a region of potential interest In this portion of the data we can see that the individual may be performing a breath hold or may possibly be experiencing an apnea event If this region of the data set is of potential interest then mark it with an annotation of your choice To create the annotation left click the mouse at the start time of the event and hold it down Drag the mouse until the end time of the event and then release the mouse This creates a pop up context menu where you should select Annotation gt Add This is shown in Figure 19 Please ensure that your display matches Figure 19 by matching the layout start time and duration shown at the top of the figure Once the annotation is added the result should match the one shown in Figure 20 Quick Start Guide VivoSense Core Page 20 of 24 VivoSense Quick Start Guide mea e Layout Start Time 14 56 14 273 Duration 00 04 34 182 Session Start Time 14 49 23 Duration 00 18 16 730 4500 4500 4000 4000 a 3500 1500 1500 Zoom Selecti ao a M 500 Export 500 0 0 500
11. e E4 Solid Spike Width 1 Figure 16 Plot Properties Quick Start Guide VivoSense Core Page 17 of 24 65 yy HR 64 64 PA 63 63 j 62 i f j 62 ma d a a g0 60 j 59 59 f 58 58 Y Y ral 14 51 34 250 14 52 00 000 14 52 11 750 T m F Figure 17 HR Plot with New Properties 2 2 Channel Properties Different channels have different properties As we have discussed derived channels may be created as the result of running an algorithm The initial VivoSense parameter settings default to the values most appropriate for a given algorithm In many instances the user may not want to change these parameters Advanced VivoSense users may however find it desirable to adjust these settings Any adjustable parameter is exposed as a channel property and may be modified using the Property Editor This may be achieved by changing the channel properties The simplest example of an algorithm which may be displayed as a channel and where the user may wish to adjust the channel properties is in the trending capability of VivoSense see Section 1 8 There are several ways to access channel properties and a convenient shortcut is to again use the legend This is the channel icon and label to the right of each chart This time instead of clicking on the plot icon click on the channel text in the legend For the purposes of this example click on the text Trend HR This will display the trend properties in the prop
12. erties editor as shown in Figure 18 SC IpDo w w D ct 3 Mb a m mT E Trend Se Mean Type Tempora Trend Overlap 00 00 00 Trend Type Median Trend Window Width 00 01 00 Figure 18 Trend Properties Quick Start Guide VivoSense Core Page 18 of 24 Properties displayed in grey may not be edited however properties shown in black may be edited by the VivoSense user The default trend type is a Median trend Go ahead and click on the word Median and note that a drop down arrow appears Click on this to display a menu with different trends Try changing the Median to for example a Mean This will immediately update the trend to generate a Mean calculation The trend window width shows 1 minute trends Go ahead and change this property to 00 05 00 to display a 5 minute trends The trend overlap is available should you wish to calculate large trends but overlap them in time Change the overlap property to 00 04 30 for a 4 minute and 30 second overlap Note that you may quickly and easily calculate and display any type of trend Please note that you may plot trends as a separate chart or on top of an existing chart Trend plot properties may also be easily changed Quick Start Guide VivoSense Core Page 19 of 24 3 Annotations VivoSense allows the user to easily annotate data to mark specific events or area of particular interest 3 1 Creating an Annotation To create an Annotation begin by applying th
13. ick on this and change the name of the new folder to Example Then select Example and in the dialog type First Example as shown in Figure 14 Once saved note that it will appear in the bottom half of the data explorer as shown in Figure 15 Please go ahead and test this Double click on the Empty layout to clear the SCP Quick Start Guide VivoSense Core Page 14 of 24 VivoSense Quick Start Guide Now double click on the First Example layout to bring back the layout that was saved and continue where we left off a i HRV Analysis 08 Equivital import Ea HRV Analysis ca Equivital Import Figure 14 First Example Layout Quick Start Guide Page 15 of 24 VivoSense Core Tix a Q ANCE 1 a Cr gt rt gt I in fy VivoSense Quick Start Guide cai HRV Analysis cla Equivital Import a Lifeshirt Import First Example a Chart Charti a Chart Chart a f Chart Chart3 Figure 15 New Layout Appears in the Data Explorer Quick Start Guide VivoSense Core Page 16 of 24 2 Properties Editor Properties are an important concept in maximizing the utility of VivoSense Every component in VivoSense has associated properties Graphical building blocks in VivoSense such as plots charts or data structures such as channel data or session information all have properties which can be inspected and in some cases modified by the user Properties are a simple and intuitive way
14. ndicated by the progress bar in the bottom right hand corner of the SCP status bar An additional channel which can be derived in this way is the heart rate HR channel Add this to the SCP by browsing to Electrocardiogram gt Measures in the data explorer and double clicking on the HR channel Please note that this channel is a measure and is denoted as such by the measures icon ate Quick Start Guide VivoSense Core Page 11 of 24 A Sample Session plab x Layout Start Time 14 51 48 312 Duration 00 00 09 375 Session Start Time 14 49 23 Duration 00 18 16 730 E r i Rwavel 2300 2300 2200 2200 2100 2100 2 2000 2000 1900 1900 a 6 1200 1800 1700 1700 1600 1600 1500 1500 1400 1400 1300 l 1300 14 51 48 312 14 51 50 000 14 51 55 000 14 51 57 687 r a Time 14 51 51 480 Cursor 1743 86 Values Ecgl 1525 93 Rwavel 2299 394 Figure 8 Displaying Derived R wave Markings on the Same Chart as the Ecg Channel 1 6 Centering and Scaling Data Centering Data Once the HR channel is on the screen zoom out several times using the up arrow key You will notice that the plot goes out of range and it is easy to center the range by clicking anywhere on the chart and pressing the shortcut key c Quick Start Guide VivoSense Core Page 12 of 24 Scaling Data It is also possible to edit the limits of the range by double clicking on the to
15. nse to describe available time series data for display and analysis The lower half of the data explorer consists of a set of folders with each folder containing data channels To begin we will expand the data folder labeled Electrocardiogram and select the sub folder labeled Waveforms As may be seen from Figure 2 this folder contains two channels NW Note that different channels have different icons describing the nature of the channel In Figure 2 the WV icon is used to indicate that these channels are waveform channels The Synchronized Chart Panel SCP The SCP may be thought of as the drawing board upon which data is displayed It is as its name suggests a placeholder for multiple charts which can contain plots of data The synchronized term refers to the fact that these data are all on the same time basis and are thus synchronized in time This is displayed in Figure 3 Quick Start Guide VivoSense Core Page 6 of 24 Z Sample Session plab x Layout Start Time 14 49 23 ___ Duration 00 05 00 Session Start Time 14 49 73 Duration 00 18 16 730 Se 4 LL I Time Cursor Value Figure 3 Synchronized Chart Panel SCP Emptying the SCP The first time VivoSense is opened the SCP will be an empty slate However if you have been using VivoSense prior to this tutorial it may contain plots of data We will therefore begin by cleaning the SCP to its empty starting point To do this navigate to the bot
16. p or bottom marking on the y axes as shown in Figure 9 Once it is highlighted it is possible to edit this with any numerical value of your choice Try this and then press the c key again to center the range once you are done Remember that you must click on the chart area in order for the shortcut to center will work Chart2 58 57 14 51 15 500 4 mr Figure 9 Editing the y Axis Range 1 7 Measuring Data The cursor may be used to measure data plotted in VivoSense To complete this place the cursor anywhere on Chart2 which contains the HR plot and note the values in the status bar as the cursor is moved as shown in Figure 10 Time 14 51 18 603 Cursor 57 04418 Value HR 61 97114 Figure 10 Status Bar Showing Cursor and Plot Values To measure a range left click the mouse on the chart and hold the mouse button down while you drag a rectangular region between two points on the same chart Note how the status bar now shows both the time difference x axis and the cursor difference y axis Time Diff 00 00 15 689 Cursor Diff 4 947791 Figure 11 Status Bar Showing a Measured Range Quick Start Guide VivoSense Core Page 13 of 24 1 8 Trends VivoSense may be used to visualize and demonstrate trends in data This is especially useful when visualizing lengthy data sets Most derived measures may be trended and these trends may be displayed as VivoSense channels Begin by zooming to the full file view
17. tom half of the data explorer as shown in Figure 4 and double click on the Empty icon This will empty the SCP or more correctly load an empty layout to the SCP Quick Start Guide VivoSense Core Page 7 of 24 laa User I La Modules EN f HRV Analysis f Equivital Import H la Lifeshirt Import E dee Sample Session plab Figure 4 Layouts Bottom Half of the Data Explorer Displaying Data Channels To display the data channel labeled Ecg1 select this with the mouse and drag it onto the empty SCP Releasing the mouse will display a plot of this waveform on the first chart on the SCP labeled Chart1 An alternative to dragging data channels onto the SCP for display is simply to double click on the data channel thus adding a new chart to the bottom of the existing charts on the SCP Go ahead and try this by double clicking on Ecg2 to get two charts on the SCP each with a single waveform plot as shown in Figure 5 Now remove Chart2 by right clicking on the chart and selecting Chart gt Remove as shown in Figure 6 Quick Start Guide VivoSense Core Page 8 of 24 Sample Session plab x Layout Start Time 14 49 23 Duration 00 05 00 Session Start Time 14 49 23 Duration 00 18 16 730 Eee ee AN ijin A Egl 2400 2400 2200 2200 ia 2000 E 2 oO 1800 1800 1600 1600 1400 1400 1300 1300 2200 2200 2000 2000 1800 1800 e 5 1600 1600 1400 1400 1200
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