VNG Plus
Videonystagmography System
USER´S MANUAL
V.18.11.18ENGLISH
Page 1: ...VNG Plus Videonystagmography System USER S MANUAL V 18 11 18ENGLISH...
Page 2: ...information accessories and replacement parts contact ECLERIS S R L FRANCISCO N LAPRIDA 4955 VILLA MARTELLI B1603ABK BUENOS AIRES ARGENTINA Tel Fax 54 11 48383200 Web www ecleris com E Mail info ecle...
Page 3: ...G PRINCIPE 9 PATIENT CONSIDERATIONS 10 DESCRIPTION 12 FRONT PANEL 12 REAR PANEL 13 JUNTION BOX 13 GOGGLES 14 INSTRUCTIONS FOR USE 15 RUNNING THE PROGRAM 15 HELP 16 NEW PATIENT 16 NEW SESSION 17 CUSTOM...
Page 4: ...33 Smooth Pursuit 33 Optokinetic OKN 33 Active head rotation AHR 33 Video head impulse test vHIT 34 Supine 34 Dix Hallpike 35 Calorics 35 ANALYSIS GENERAL 37 Spontaneous Nystagmus 39 Gaze 39 Saccades...
Page 5: ...5 Hardware 65 TECHNICAL SUPPORT 66 TECHNICAL SUPPORT TYPE 66 REMOTE CONNECTION 67 TECHNICAL SUPPORT OFF LINE 67 INSTALLATION 68 SYSTEM REQUIREMENTS 68 SOFTWARE INSTALATION 68 AUTOMATIC DRIVERS INSTALL...
Page 6: ...SES CHANGE 78 DISPOSE 78 MAINTENANCE AND REPAIRS 79 REPAYMENT AND TRANSPORTATION 79 TROUBLESHOTINGS 80 TECHNICALSPECIFICATIONS 82 APENDIX 84 ABNORMALITY THRESHOLD 84 Freyss Diagram 87 DizzinessHandica...
Page 7: ...ic gases The equipment may cause radio interference or may affect the operation of nearby equipment It may be necessary to reorient or relocate it Connect it to a power supply network with the specifi...
Page 8: ...repairing it Equipment modification is not allowed and may affect performance and performance Maintenance must be carried out by qualified technical service personnel To avoid the risk of communicati...
Page 9: ...7 If you notice changes in performance or performance stop using it and contact ECLERIS technical support...
Page 10: ...hat has this symbol Fragile The product must be eliminated according to the directives RAEEs waste electrical and electronic equipment Temperature limit for transport and storage Attention Atmospheric...
Page 11: ...technique OPERATING PRINCIPE The VNG goggles hold the cameras that are used to record the eye images The cameras use infrared light IR which is not visible to the naked eye The IR illumination enable...
Page 12: ...ns To screen for vertebrobasilar insufficiency the clinician may want to assess the patient prior to head hanging or Dix Hallpike maneuvers This may include having the patient engage in mental tasking...
Page 13: ...ration Inform patients that VNG may cause dizziness nausea or both Patients should be advised to limit food intake prior to examination and arrange for transportation after the examination which usual...
Page 14: ...User s Manual ACCESORIES OPTIONAL Sensor gyroscope accelerometer and ultrasound transmitter T Bar withreceptorsUltrasound Cushionmask Wirelessfootswitch It is recommended to identify and verify its e...
Page 15: ...Power supply cable connection Fuse holder 2 Ultrasoundsensors Bar 3 VGA Monitor screen 4 USB Cable 5 Equipotential terminal JUNTION BOX 1 Right Camera 2 Left Camera 3 Sensor position movements 4 Data...
Page 16: ...14 GOGGLES A Sensor position movements B Right Camera B Left Camera...
Page 17: ...zed to operate the system Once the hardware and software have been installed you can begin using your VNG Plus NOTE VNG Plus performance may vary depending on version and model hardwareinstalled RUNNI...
Page 18: ...Activate video help Demonstrations NEW PATIENT To Create Patient File enter First name required last name required and chart date of birth DOB gender To enter demographic data phone address etc and A...
Page 19: ...te it an automatic ID press button 2 Complete the data Clinic Doctor Technical optional 3 Select a protocol from the drop down menu See Create Protocol The button opens the database to set the dropdow...
Page 20: ...tup hardware and software Support User friendly assistance for individuals having technical problems with VNG Plus The technicalsupportteam is able to troubleshoot most problems that a user experience...
Page 21: ...tup Protocol You can deactivate some items uncheck them These changes will not be saved See the test description by clicking View Detail test description A label is displayed that shows the parameters...
Page 22: ...is 100 There are seven questions that comprise the physical subscale maximum score of 28 and nine questions each on the functional and emotional subscale maximum scores of 36 For ease of comparison t...
Page 23: ...21 Go to Select another Window Next Forward to next window...
Page 24: ...t do not worries about to return the chair to its original position in case it have been moved VNG Plus is controlling it all the time See Alarms VNG Plus supports screen monitor of different geometri...
Page 25: ...mage of the eye in the respective box If necessary use the fine adjustment of the cameras and or move the mirrors from the top screws to align the image so that the pupil is perfectly centered The rig...
Page 26: ...y one eye record at a time The selected eye to analyze default is Left but this may changeat any time NOTE If after carrying out the analysis of a session you change the eye to analyze Youwill lose th...
Page 27: ...nfiguration Protocol on protocols setting are determine what stimulus type you want to use for calibration Center right left down and up Request the patient tofixate upon points that are projected ont...
Page 28: ...e position and head movements assistance in this window a frame is shown whose color green Good yellow regular red insufficient indicates the state of detection of pupil according to the count lightin...
Page 29: ...0 seconds See Protocol Settings When you hear the metronome you should start moving your head to the right and left alternately and the screen will show the graph of the position of the eye and head i...
Page 30: ...een During the head calibration are shown in the diagrams the head speed and the eyes position on time Once the calibration is finished the information corresponding to the head calibration will autom...
Page 31: ...posed to the target line plotted as comparison criteria The eye position or speed sec is plotted against time whose description is the following Horizontal position vs Time sec In a Cartesian x t grap...
Page 32: ...igured with different degrees of stringency See Configure Advanced Warnings a Relative subject position to the visual stimulator to achieve desired stimulus b Head angles c Head tilt WarningsColors Du...
Page 33: ...for the user or patient It also offers recommendations and a list of artifacts that could influence the results This support can be configured so that it is always available before a test or access it...
Page 34: ...witch can be very useful when you need your hands free to care for the patient orto operate other devices for example in the Dix Hallpike caloric irrigator oroperate The pedal can be used only to reco...
Page 35: ...tion Head Movements Head angles Smooth Pursuit The patient follows a sinusoidal moving target with his or her yes only Warnings Patient position Head Movements Head angles Optokinetic OKN For Optokine...
Page 36: ...usually around 20 impulses are delivered randomly in each direction In a full test Usually around 20 impulses are delivered randomly in each direction and it may take 4 or 5 minutes to do that This te...
Page 37: ...er head at a 30 angle This position orients the lateral semicircular canals in the most vertical plane Careful otoscopic examination allows the stimulus to be directed appropriately and at an equivale...
Page 38: ...SION After each caloric stimulus the patient is instructed to fixate on a light Red inside the goggles Fixation should normally eliminate or greatly reduce the induced Nystagmus Warnings Head Movement...
Page 39: ...uled Test Battery The tests of the same type with multiple sub tests are shown in one window The test name displayed should be selected from the drop down menu Records horizontal vertical and the vide...
Page 40: ...ly When reviewing an editable test you can click on edit Icon to open the Edit mode and display the Edit toolbar The Edit icon appears example from Caloric test See Edit Nystagmus Graphical analysis G...
Page 41: ...ic position Nystagmus and slow phase velocity are evaluated for each position NystagmusCount SPV sec is average slow phase velocity Saccades Saccadic test results are influenced by patient cooperation...
Page 42: ...ic OKN For Optokinetic testing the patient tracks multiple stimuli Gain and Asymmetry should all be taken into consideration when interpreting OKN Gain refers to the ratio of the eye velocity to the t...
Page 43: ...rd Rightward The standard deviations Leftward Rightward shakes Symmetry refers to gain significantly worse in one direction than another Avg Gain The average gain of all shakes Test Compliance refers...
Page 44: ...The resulting dizziness and Nystagmus is taken as an index of the viability of the organ The culmination phase area is automatically defined the best 30 sec Nystagmus that lie outside the area does n...
Page 45: ...age slow phase Nystagmus eye velocity that occurs for 5 second after the eyes are fixated and SPV before_fix represent the average slow phase Nystagmus eyes velocity that occurs for 5 seconds before e...
Page 46: ...elect a tests to print by pressing Selection Tests and Options Test of the same trials Pressed Options See also Configure Advanced Print Pressing analysis a form with the tests summary is open which y...
Page 47: ...maccuracydependsonseveralfactors The image quality of the eye An accurate eye detection procedure training during the mask setup The patient cooperation blink keeping eyes open wearing no eye makeup e...
Page 48: ...the criteria used to determine to the Nystagmus existence Then press re analuzed button See also Setup Advanced Beat Count Manual Edition To include a new Nystagmus press the Add button and then 1 Cl...
Page 49: ...l data Automatic editing With the automatic discard option enabled Increase or decrease the sensitivity by modifying the gain dispersion Gi Gprom those impulses whose gain differs from the average of...
Page 50: ...ton opens a dialog to export the selected test in some external medium Pendrive CD etc Pressing Publish Test you can publish the test data report or videos on the website Endodigiweb com in public or...
Page 51: ...uired fields to create an account Select the publication type you want to make Public anyone who visits EndodigiWeb Private only people that you invite by email In both cases PUBLIC or PRIVATE you mus...
Page 52: ...t to publish patient s personal and confidential information Invite your contacts to visit the publication Adding contacts from your address book Add open a dialog to create a contact list to share yo...
Page 53: ...contact email Import This enables you to import your address book from mail clients to ENDODIGI Now your publication is ready to upload on the website If your publication was uploaded successfully you...
Page 54: ...any files large it may result in a long upload times Visit the Endodigi website at http www endodigi com to view your publication SOFTWARE SETUP The following section describe all of these options and...
Page 55: ...Name Name or Chart Medical Records pressing the top of each column Use the search tools pressing the Search button to locate a patient and or sessions Filters allow discrimination by Name Last name N...
Page 56: ...54 PROTOCOL Here you can create custom protocols and adapt it to your needs and experience in clinical practice VNG Plus includes default protocols that fit the characteristics of hardware detected...
Page 57: ...for performed tests To expand collapse the description use All tests are saved The test disabled unchecked don t be included on the protocol sequence and should use the GO TO function to open this wi...
Page 58: ...pontaneous Visual Stimulation Gaze OKN Saccades Smooth pursuit Posture Dix Hallpike Supine Caloric Cool Warm At AHR vHIT Questionnaire DHI DHI military Assistances Position Angles Goggles Configuratio...
Page 59: ...llpike video demonstration is shown on figure If you want to see it before start the test recording you must activate Test instruction on the Advanced Acquisitions tab ADVANCED Different variables gro...
Page 60: ...selected warnings level will be more or less stringent demanding perform a test Visual stimulator VGA To produce stimulation patterns of correct size position and angle velocity the required informat...
Page 61: ...59 Fill out the actual lengths in the fields that describe the Monitor dimensional characteristics See also Technical Requirements and Setup Advanced Acquisition...
Page 62: ...lanalysis Analytics Analysis To print the measure data of a test Records eye positionplot Alarms warning records Eachonown page Print Nystagmus mark on to printout eyes position trace show Nystagmus m...
Page 63: ...medical practitioner may provide to a patient on USA They are then used to determine the amount of reimbursement that a practitioner will receive They ensure uniformity The codes are developed mainta...
Page 64: ...croll the entire layout While printing are printed only the first 25 sec of recording or window marked to printing See Print the Bookmarks If set to auto scale the layout adapts to the recorded times...
Page 65: ...e the stimuli screen when connects a VGA monitor Overwrite Camera Lets you use the system with a single camera Right Left WMI Hardware Hardware setup for the technical support only Force connect Commu...
Page 66: ...ely has to access this configuration tab This requires technical information that is specific to its installation Request technical support before modifying any parameter since it could affect the ope...
Page 67: ...red to improve the analysis The modifications are over the video itself and it does not affect the general mask parameters You can modify the area from the default configuration drop down menu or by r...
Page 68: ...rt request please include a full description of the problem including the error message TECHNICAL SUPPORT TYPE Email Support the field required must be completed and is send the query The technical su...
Page 69: ...CONNECTION After that technical support receive the application to Remote Access and until in fact is established or canceled the connection you will see the following screen If is pressed the Cancel...
Page 70: ...ssor Intel I5 2GHz Memory 6GB RAM Video card with 512MB of memory Hard Disk 500GB of free space USB Port 2 0 ONBOARD port DO NOT USE WIRED PORT Software SO Windows 7 8 32 64 bit SDKs DirectX Windows M...
Page 71: ...he options that appear by default by pressing Next button in each of the screens unless indicated otherwise Once the files are copied the installation program will automatically begin drivers installa...
Page 72: ...you must choose in all cases No Restart later until installation is finished completely Press Install to continue If consulted keep the defaults and click Next If at this point is consulted on restart...
Page 73: ...request you in order to correctly install the device When connecting the VNG Plus to the USB port automatically begin the drivers loading At the end on the Windows taskbar you will see a legend confi...
Page 74: ...llation See Checking correct installation of the drivers in Windows7 CHECKING DRIVERS INSTALLATION WINDOWS 7 You can check the correct driver installation from the Device Manager It s accessed over St...
Page 75: ...e to tighten the screws nuts in the corresponding position otherwise the bar and or the monitor could be damaged The bar of ultrasound receivers should be placed on the monitor where the visual stimul...
Page 76: ...n b CONECTIONS 1 Put the position sensor into the center of the mask by pressing 2 Connect the cameras Right 1 Left 2 to the junction box 3 Connect the position sensor to the central connector 3 of th...
Page 77: ...rivers At the end of the installation run the software from the desktop icon of your PC to verify that it has been installed perfectly If an error occurs restart the PC If the error persists consult t...
Page 78: ...est mulo adecuado en amplitud VNG Plus admite dispositivos TV LCD LED de distintas configuraciones para generar la estimulaci n visual Ver Configuraci n Avanzados Estimulador El estimulador visual se...
Page 79: ...ne using a soft damp cloth that does not drip Rinse with a clean cloth moistened with water and let it dry thoroughly before reuse RECEIVER BAR Use a soft cloth to remove dust In case the dirt is abun...
Page 80: ...tch and gently lift the fuse compartment with a slight downward and outward movement 3 Fuses must be replaced if they appear black or burned 4 Replace the fuses with a new T1AL250V 5 Close the lid of...
Page 81: ...st be repaired To perform any other procedure that is not detailed in this section contact the Ecleris technical support REPAYMENT AND TRANSPORTATION CAUTION To avoid possible damage always transfer i...
Page 82: ...n or burnt Changethe fuse The Device is not detected or there are faults in the capture or assistance display The drivers are not correctly installed Check drivers installation Install drivers VNGPlus...
Page 83: ...ireless switch drivers USB wireless receiver is unplugged Plug USB receiver It is inside the switch to a USB port of the PC Function wireless switch is not activated Select the wireless switch into Se...
Page 84: ...IPX0 NOT suitable for use in the presence of a flammable anesthetic mixture with air oxygen or nitrous oxide Functioning mode Continue Service conditions 10 C 40 C 700 1060 hPa 30 75 Relative humidity...
Page 85: ...alorics 3 Postural 4 Dix Hallpike 5 Gaze 1 6 Smooth pursuit 1 7 Saccades 1 8 Optokinetics 1 OKN 9 Autorotatory head 2 AHR 10 Head Impulse 2 Horizontal vHIT 1 Visualstimuly is required 2 Position senso...
Page 86: ...Nystagmus in same gaze direction SPONTANEOUS NYSTAGMUS CNS brain stem PVS direction fixed horizontal or torsional Nystagmus Inhibited by fixation follows Alexander s law rule out drugs lack of alertn...
Page 87: ...ocular disorder Lower velocity of trailing eye Internuclear ophthalmoplegia Brain stem OPTOKINETIC NYSTAGMUS Gain eye velocity target velocity Symmetry SPV right SPVleft Gain 60 is abnormal Symmetry...
Page 88: ...ide Bilateral peripheral organs Acute unilateral lesion or perhaps CNS cerebellar Directional preponderance is not localizing Videonystagmography is the most commonly used clinical test to evaluate ve...
Page 89: ...here are two limits x 100 and x 100 Rightwards Nystagmus flaps are positive while the leftwards ones are negative The results obtained from the right ear are represented in line X 100 and the left ear...
Page 90: ...This format offers different advantages as the ability to compare the preponderance speed against the speed of any Nystagmus that may be present The relative directional preponderance is also shown in...
Page 91: ...getting into or out bed F6 Does your dizziness significantly restrict your participation in social activities such as going out to dinner going to the Movies dancing or going to parties F7 Because of...
Page 92: ...e of your dizziness is it difficult for you to go for a walk by yourself P17 Does walking down a sidewalk increase your dizziness E18 Because of your dizziness is it difficult for you to concentrate F...
Page 93: ...91 F24 Does your dizziness interfere with your job or household responsibilities P25 Does bending over increase your dizziness Score Functional YYYYEmotional YYYYPhysical YYYYY Total YYY...
Page 94: ...tic environment Guide RF emissions CISPR 11 Group 1 Radio energy is used only for its internal functioning Therefore RF emissions are very low and are unlikely to cause any interference with nearby el...
Page 95: ...ne 2 kV Line to ground line to ground 1 kV Line to line 2 kV The quality of the network s power should be that of a typical commercial or hospital environment Voltage drops short interruptions and vol...
Page 96: ...d 1 2 P 80 MHz at 800 MHz d 2 3 P 800 MHz at 2 5 GHz where P is the maximum rated output power of the transmitter in watts W according to the manufacturer of the transmitter and d is the recommended...
Page 97: ...st be examined to verify normal operation If abnormal performance is observed additional measures may be necessary such as a reorientation or relocation of the VNGPlus unit b In the frequency range fr...
Page 98: ...83200 Web www ecleris com E Mail info ecleris com All rights reserved Reproduction or transmission in whole or in part in any form or by any means electronic mechanical or otherwise is prohibited with...
