otometrics ICS Impulse USB Operation & User’s Manual

by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written consent of Natus Medical Denmark ApS. Copyright© 2013, 2019, Natus Medical Denmark ApS Published in Denmark by Natus Medical Denmark ApS All information, illustrations, and specifications in this manual are based on the ...

1 Your New ICS Impulse System 4 2 Intended use 4 3 Typographical conventions 4 4 System startup and logging in 5 5 Patient data entry/lists 5 6 Preparing for testing 8 7 Adding remarks/adding video recording 17 8 Collecting Head Impulse data 17 9 Monitoring eye and head movement 19 10 Analyzing data for a single test 20 11 Analyzing data for multiple-tests 32 12 Workingwith reports 34 13 How to record and play back video 38 14 System sett ...

Congratulations! You are now the owner of a sophisticated new ICS Impulse system developed in collaboration with Drs. Ian Curthoys, Michael Halmagyi and others at University of Sydney. To assist you in getting the most out of the ICS Impulse system, we have included auser guide, online reference manual and a training video. We hope you find it easy to use and that your use of the incorporated tips and information results in im ...

4 System startup and logging in 1. Switch on the computer. 2. Double-click the OTOsuite Vestibular icon. Note•An Administrator user name and password are provided with a new installation of OTOsuite Vestibular. DO NOT delete the user name or password from the login screen until at least one new user name with password has been added. Ensure that at least one user has administrator privileges. For inf ...

• Click Close to close the current patient and start anew temporary patient Ifno patient is open, a temporary patient is available. The temporary patient allows testing to start without entering patient data. The patient is given a unique number based on the date and time the patient record was created (yyyym- mddhhmmsswhere yyyy=year, mm=month, hh=h ...

• To set the gender, click the down arrow and select the appropriate entry. • The date of birth format is determined by the computer setup and will display as mm/dd/yyyy or dd/mm/yyyy where mm=month, dd=day, and yyyy=year. Only numeric characters are allowed (alpha characters can not be used). Existingpatient A complete description of patient list operations is provided ...

6.1 The patient is prepared Warning•A head impulse should not be performed on patientswith a neck injury, or on patients who have been told by their physicians to limit or avoid neck movement activity. Prior to testing, provide the patient with these general recommendations: • Ifin doubt, consult with a physician about the possible side effects of stopping aparticular medication. • Stop tranquilizers, sedatives, or vestibular ...

When goggles are placed properly they sit comfortably on the bridge of the nose and will not slip during the test. Poor goggle fit resulting in slippage can result in gain values being inaccurate. Note•You can find more information in the ICS Impulse training video or at www.icsimpulse.com. Caution•Goggle Fit is Important. Improper goggle fit can result in inaccurate data collection. Goggle slippageoften resultsin inaccurat ...

at the top of the shoulder. 7. Ensure the eyes are wide open with eyelids positioned to not interfere with pupil detection. If required, adjust the skin around the eye: Tilt the bottom of the goggles out and away from the face, pulling the skin below the eye down and repositioning the gogglesto hold the skin in place. Tilt the top of ...

– click on the green box and drag to center it on the pupil, or – click on the pupil to center the pupil inside the green box. 5. In the Video window, choose the type ofimage displayed: Grayscale Image (A) or Pupil Location (B). Note•Ifvideo recording the eye, select Grayscale Image. 6. Ifthe pupil was not automatically detected, select Auto Threshold. The system centers the cross-hair on the ...

This procedure assumesthat the test is performed after the Lateral test. 1. Choose the Impulse Type: LARP or RALP. Choosing the impulse type determines which plane ofthe gyroscopes (i.e., head trace) should be bold in the Real Time Trace. It also determines the shape ofthe training curves. 2. For patients with spontaneous nystagmusor gaze-evoked nystagmus (evoked by gaze position during head impulse), select the check box Spontaneou ...

adjustments, or performance ofprocedures other than those specified herein, may result in hazardous radiation expos- ure. 1. Click Lasers Onto turn on both lasers. 2. Ask the patient to position the left and right dots equidistant on each side of the fixation dot. Otometrics - ICS Impulse USB 13 User Guide ...

to track the pupil. Note•Use the Real Time Trace window to monitor incoming data. By observing the head trace (orange/blue/pink) and the eye trace (green), you can tell if the patient is moving their head or eyes (instead of staring at the fixation dot), blinking excessively, or not following instructions being given (not cooperatin ...

Lateral, LARP, RALP. There is no need to recalibrate between tests unless the goggles have moved. If you exit out of the patient’s file and reopen, calibration will need to be performed again. Calibration check 1. Ask the patient to stare at the fixation dot and move the head side to side through a small angle (about 10 degrees). 2. Chec ...

3. Ifthe eye and head velocities do not match, you need to recalibrate or review the patient’s history. Note•If the patient has to make catch-up saccades during low frequency head rotations, this can indicate either vestibular loss, or cerebellar dysfunction, or both. When test results include catch-up saccades during low frequency head rotations, it is recommended that the Impulse test results be interpreted ...

Remarksregarding the test can be entered before, during, and after testing. To add or modify remarks, click the Remarks window tab. For information about the editing tools, refer to the Reference Manual. The Video window displays the image ofthe eye. To start the video recording at the same time as data collection starts, select the check box Auto Record (B). To control the recording manually, click Record (A) to sta ...

leftward and rightward impulses. Note•Impulse settingscan be any number up to 999. For information about setting the default numbers, refer to the ReferenceManual. During testing, valid impulsesdisplay for both left and right impulses (B). The left and right impulses that are not valid (those with velocities outside a pre-determined acceptable r ...

While performing the head impulse test, both the Real Time Trace window and the Impulse window display head and eye traces to assist you in understanding the quality of data being collected. Real Time Trace window This window allows you to monitor both head and eye movement while performing the head impulse test. The type of impulse selected (Lateral, LARP, or RALP) determines which head trace is bold. The bold head trace ...

teria, an accepted head impulse will be counted in the collection window. A head impulse that matches the training curve is typically counted as an accepted (valid) head impulse. Comparing the actual head traces (in this example shown in blue) against the training lines helps ensure that the tester per- forms quality head impulses a ...