Acuson Sequoia Ultrasound System User manual

Sequoia® Ultrasound System
Service Training Manual

Service Training Department
Acuson Corporation
1220 Charleston Road
Mountain View, CA 94039
[phone]
(800) 4-ACUSON

Manual Assy P/N 58323, Rev. 1
Language: English
CE

Acuson Confidential

ii Sequoia Service Training Manual P/N 59191 Rev. 1

COPYRIGHT Copyright © 2000 by Acuson Corporation. All rights reserved.

No part of this publication may be reproduced, transmitted,
transcribed, stored in retrieval systems, or translated into any
language or computer language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual, or
otherwise, without the prior written permission of Acuson
Corporation.

Acuson Corporation reserves the right to change its products
and services at any time. In addition, this manual is subject to
change without notice. Acuson Corporation welcomes
customer input on corrections and suggestions for
improvements to this manual.

Although Acuson Corporation has attempted to ensure
accuracy throughout this manual, Acuson Corporation assumes
no liability for any errors or omissions, nor for any damages
resulting from the application or use of this information.

TRADEMARKS Acuson, AEGIS, CasePro, DELTA, MultiHertz, RES, Sequoia,

SpaceTime, The Value of Vision, Vector, 128XP, and XP are
registered trademarks of Acuson Corporation. Aspen, Cadence,
Convergent, DIMAQ, DTI, EF, FreeStyle, microCase, Multizone,
Native, NewView, Perspective, ProtoCALL, QuantX, Quik-Clip,
Solo, SST, and WebPro are trademarks of Acuson Corporation.

Cidex, Cidex Plus, and Cidex 7 are registered trademarks of
Surgikos, Inc. K-Y Lubricating Gel is a trademark of Johnson &
Johnson Products, Inc. IBM is a registered trademark of
International Business Machines Corporation. Metricide is a
trademark of Metrex Research Corporation. Omnicide is a
trademark of Cottrell, Ltd. Panasonic is a trademark of
Matsushita Electric Industrial Co. Ltd. Polaroid is a registered
trademark of Polaroid Corporation. 3M is a registered
trademark of Minnesota Mining and Manufacturing. Apple,
AppleTalk, EtherTalk, LocalTalk, Macintosh, MultiFinder, and
LaserWriter are trademarks of Apple Computer, Inc. DOT is a
registered trademark of Digital Optical Technologies. Pinnacle
Micro Inc., Kodak, and Ektascan are registered trademarks of
Eastman Kodak Company. PostScript is a registered trademark
of Adobe Systems, Incorporated. Ricoh is a trademark of Ricoh
Company, Ltd. Sony is a registered trademark of Sony
Corporation of America. Verbatim is a registered trademark of
Ve r ba t i m C o rp o r at i on . Tos o h i s a t ra d e ma r k o f To s oh
Corporation. Multi-Imager is a trademark of International
Imaging Electronics.

All other product names are trademarks of their respective
companies.

CAUTION! The Food and Drug Administration of the United States Government

restricts use of this device to or on the order of a physician.

P/N 59191 Rev. 1 Sequoia Service Training Manual iii

Acuson Confidential

LICENSE
A

GREEMENT

All computer programs copyright 1990-2001 by Acuson
Corporation OR ITS SUPPLIERS. Such programs are licensed
under the following software license agreement:

Acuson or its suppliers retain(s) ownership of and title to any
computer program supplied with the equipment and to the
trade secrets embodied in such computer programs. Subject to
the Buyer’s acceptance and fulfillment of the obligations in this
paragraph, Acuson grants the Buyer a personal, non­transferable, perpetual, non-exclusive license to use any
computer program supplied with the Equipment that is
necessary to operate the Equipment solely on the medium in
which such program is delivered for the purpose of operating
the equipment in accordance with the instructions set forth in
the operator’s manuals supplied with the Equipment and for
no other purpose whatsoever. Buyer may not reverse-assemble,
reverse-compile or otherwise reverse-engineer such computer
programs nor may Buyer make a copy of such program or
apply any techniques to derive the trade secrets embodied
therein. In the event of a failure by Buyer to comply with the
terms of this license, the license granted by this paragraph shall
terminate. Further, because unauthorized use of such computer
programs will leave Acuson without an adequate remedy at
law, Buyer agrees that injunctive or other equitable relief will be
appropriate to restrain such use, threatened or actual. Buyer
further agrees that (i) any of Acuson's suppliers of software is a
direct and intended beneficiary of this end-user sublicense and
may enforce it directly against Buyer with respect to software
supplied by such supplier, and (ii) NO SUPPLIER OF ACUSON
SHALL BE LIABLE TO BUYER FOR ANY GENERAL,
SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL,
INCIDENTAL OR OTHER DAMAGES ARISING OUT OF THE
SUBLICENSE OF THE COMPUTER PROGRAMS SUPPLIED
WITH THE EQUIPMENT.

REVISION HISTORY

QRC P/N-REVISION INITIATOR APPROVAL DATE CHANGE

S. WilliamsJuly 1999Incorporate reviewer comments

A3210 P/N 59191 Rev. 1 J. Madarasz S. Williams Dec. 2000 Initial Release.

Acuson Confidential

iv Sequoia Service Training Manual P/N 59191 Rev. 1

CONTENTS

MODULE 1 Introducing Sequoia® Ultrasound Technology

Sequoia Ultrasound Technology 1-3

Coherent Imageformer 1-4

DIMAQ™ Integrated Ultrasound Workstation 1-5

Doppler Technologies 1-6

Transducer Technology 1-7

Worksheet: System Technology 1-8

MODULE 2 Basic Ultrasound Physics

Introducing Ultrasound 2-3

Ultrasound Applications 2-4

Ultrasound Imaging 2-5

Transducers 2-6

Ultrasound Beam Focusing 2-11

Ultrasound Wave Reception 2-13

2-D Artifacts and Enhancements 2-15

2-D Image Acquisition 2-19

Scan Conversion 2-20

Components of Image Quality 2-22

Other 2-D Features 2-25

Doppler Principles 2-26

Spectral Doppler 2-27

Understanding Blood Flow 2-30

Artifacts of Spectral Doppler 2-31

Color Doppler 2-32

Color Doppler Modes 2-34

M-Mode 2-35

Ultrasound Module Questions 2-37