Part Number 500082 Rev 05 Operator's Manual Model HNC-63-INT Neurovascular Array Coil for the Philips Intera 1.
Rev 05 February 2002 ©2002 Invivo Corporation All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form by any means without the written permission of Invivo Corporation. Licenses and Trademarks The Invivo Logo is a registered trademark of Invivo Corporation. Intera is a registered trademark of Philips Medical Systems.
Rev 05 Introduction This manual describes the safety precautions, features, use and care, of the Invivo HNC-63-INT Neurovascular Array Coil, compatible with the Philips Intera 1.5T MRI System. Please review this manual thoroughly before using the device.
Rev 05 HNC Neurovascular Array Coil Your HNC-63-INT Neurovascular Array Coil package consists of the following parts. Please inspect the package upon receipt to make sure all parts are present and in good order. Use this guide to refer to part names thoughout this manual.
Rev 05 Table of Contents HNC-63-INT Neurovascular Array Coil ........................................................ 4 Chapter 1 - Patient Safety ............................................................................ 6 Training ........................................................................................................ 6 Quality Assurance ....................................................................................... 6 Indications .................................................
Rev 05 Chapter 1 - Patient Safety Training This manual contains detailed information on the setup, positioning and use of the Invivo Corporation coil. Read the insructions carefully and thoroughly before attempting to scan patients with the coil. Quality Assurance The procedure described in the Quality Assurance Section of this manual should be performed upon receipt of the coil to establish a baseline of coil performance. The procedure should be repeated at regular intervals.
Rev 05 Assure that the patient is not touching the bore. If necessary, place pads between the patient and the surface of the bore. If the patient complains of warming, tingling, stinging, or similar sensations, promptly stop the scan procedure, examine the patient, and contact the responsible physician before continuing the procedure. Pay special attention to very young, sedated, or other compromised patients who may not be able to communicate effectively.
Rev 05 Technical Considerations The coil and accessories require special conditions regarding electromagnetic compatibility. The coil must be installed and used in a shielded scan room provided with the MR magnet and system. The user must ensure that the scan room door is closed during system use. Failure to do so may cause reciprocal interference with portable and mobile RF communications equipment, affecting the performance of the MR coil and/ or such equipment.
Rev 05 Chapter 2 - Using the HNC-63-INT Array Coil Positioning the HNC-63-INT Coil on the Patient Table IMPORTANT: You must have the Synergy MultiConnect (SMC) device and Level 8.1.1 or higher software in order for the Intera system to recognize the coil. Additionally, Release 8.1.1 software requires a Synergy MultiConnect patch to enable this coil to be recognized by your system. Software releases above 8.1.1 do not require the patch.
Rev 05 Positioning the Patient. When lifting the anterior coil housing, always grasp the coil by the apron and the superior end of the housing. Never lift the coil housing by the viewing window or mirror. Adjust the patient so their shoulders are snug against the curved arch of the posterior coil housing. Firmly hold the anterior coil housing and carefully place it on the posterior coil housing.
Rev 05 Synergy MultiConnect (SMC) The Synergy MultiConnect (SMC) shown here is a required option to use the HNC-63-INT coil. IMPORTANT: You must have the SMC device and Level 8.1.1 or higher software on your Intera system. Additionally, Release 8.1.1 software requires a Synergy MultiConnect patch to enable this coil to be recognized by your system. Contact your Philips representative to receive this software patch. Software releases above 8.1.1 do not require the patch.
Rev 05 Connecting the Cable Attach the Synergy MultiConnect (SMC) holder to the same side of the support as the patient ineterface control unit (PICU) facing the magnet. In this example, the PICU is on the left side. Slide the holder toward the bore, even with the patients knees. For systems with PICU on left side of magnet, transfer SMC connector across table to the PICU. IMPORTANT: For SMC cable to reach PICU on left side of magnet, patient will need to be in position within the magnet, e.g.
Rev 05 Left Side Patient Interface Control Unit (PICU) Attach SMC connector to PICU. Example above is left side PICU. Right Side Patient Interface Control Unit (PICU) Attach SMC connector to PICU. Example above is right side PICU.
Rev 05 Chapter 3 - Quality Assurance Quality Assurance Remove the coil top and place the phantom positioner (part number 102485) and the phantom (part number 102690) as shown in the figures below. Replace the coil top. Connect the coil to the system as detailed in Chapter 2, "Connecting the cable." Landmark on the the phantom through the small window in the top of the coil. Follow the proceedure found on the next 8 pages.
Rev 05 Run a SURVEY scan using the parameters listed below. TIP: Save this SURVEY scan for future QA scans. An example of the SURVEY images is on page 15.
Rev 05 Example of SURVEY images are below; note position of slices for the SNR check. Proceed to the SNR check on page 16.
Rev 05 Run an SNR CHECK scan using the parameters listed below. TIP: Save this SNR CHECK scan for future QA scans. Position slices for the SNR CHECK as shown on page 15. ***IMPORTANT: Be certain to SAVE RAW DATA under Post Processing.
Rev 05 Reconstruct SNR CHECK image for individual channels using the instructions provided below. 1. Before running the SNR CHECK scan, be sure to have the "Save Raw Data" option set to "Yes" under [Postproc]. 2. Do not delete the current scan from the [Scanlist]. 3. Under the [Scanlist] icon, select the [Add Rec] icon, then the [Del. Recon] icon. 4. Left-mouse select on the scan to perform the reconstructions, then select [Proceed]. 5.
Rev 05 SNR Calulations 1.Select the reconstructed image from Channel 2, and display an eliptical ROI with a total pixel area of 1300 mm squared. Refer to Philips Gyroscan Intera Instructions Manual for ROI help. 2. Position ROI in the center of the phantom bottle, as shown below. 3. Bring up the Statistics for ROI, right-mouse select over the ROI number (arbitrary number next to the ROI), left-mouse select on Statistics from the dropdown box, and select Statistics again from drop box. 4.
Rev 05 SNR Calulations Example 20 Repeat SNR calculations as described on page 18 for the remaining reconstructed images from channels 3,4,5.
Rev 05 SNR Calulations Repeat SNR calculations as described on page 18 for the remaining reconstructed images from channels 3,4,5.
Rev 05 SNR Calulations Example 22 Repeat SNR calculations as described on page 18 for the remaining reconstructed images from channels 3,4,5.
Rev 05 Chapter 4 - Scanning Set Up Head and Neck Imaging One of the advantages of using the Invivo HNC-63-INT Neurovascular Array Coil (HNC) is the ability to acquire sequences of the head and neck without having to re-enter the scan room to change coils and/or recenter the patient. When positioning a patient for a study of the brain as well as an MRA of the carotids, center on the head as you would normally do for a routine brain scan.
Rev 05 Scanning Step by Step Scan Select: Software Release 8.1.1, Choose "3IB-MRIDEVIC", Software Releases above 8.1.1, choose "SMC-MRI". Select Channel combination(s): HEAD only: Select Ch. combination 2 NECK only: Select Ch. combination 3,4,5 HEAD & NECK: Select Ch. combination 2,3,4,5 Plan Slices Confirm Planning Geometry Page: Homogeneity Correction, Select "NONE" Start Scan IMPORTANT: Upon scan completion, you must change channel combination if imaging a different region.
Rev 05 Chapter 5 - Scan Protocols Invivo Corporation recomends that you select imaging protocols that have been established by your radiologists. Additional protocols can be found within your Philips Application Guides.
Rev 05 Chapter 6 - Maintenance Cleaning The Neurovascular Array coil and patient comfort pads may be cleaned by wiping with a cloth dampened with a solution of 30% isopropyl alcohol and 70% tap water. Do not pour any cleaning solution directly on the coil! Let coil housing and pads dry before use. Storage The coil should be stored in an air-conditioned scan room or equipment room.
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