prosound -α 6 Instruction Manual Measurement Volume 1 of 2 rev 10

ProSound logo is a registered trademark or trademark of Hitachi Aloka Medical, Ltd. in the Japan and/or other countries. Microsoft, Windows and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. VS-FlexGrid Pro copyright©1999-2000 Videosoft Corporation. Portions of this software are based in part on the work of the Independent JPEG Group. All brand name, product name, and system name are registered trademarks or trademarks of their respective owners. In this manual, ™ and ® are omitted. Copyright©Hitachi Aloka Medical, Ltd. All rights reserved.

MN1-5482 rev.10

Introduction

Introduction This is an instruction manual for the model ProSound α6, a diagnostic ultrasound system. Read the manual carefully before using the system. Take special note of the items in Chapter 1, "Safety Precautions" of the Safety Instruction manual. Maintain this manual for future reference.

Symbols Used in this Document The following items are important in preventing harm or injury to equipment operator or patient. There are four levels of harm/damage that can be caused by ignoring instructions or displays and using the equipment incorrectly: "Danger", "Warning", "Caution", and "Note". These types are indicated by the following symbols. Indicates an imminently hazardous situation that will result in the death of or serious injury to the equipment operator. Indicates a hazardous situation that could result in death or serious injury. Indicates a hazardous situation that may result in slight or moderate injury, or property damage. Indicates a request concerning an item that must be observed in order to prevent damage or deterioration to the equipment and also to ensure effective use.

Cautions use the following graphics.

This mark indicates and alert, additional information.

This mark indicates that the action is not allowed.

This mark indicates that the action is required.

Conventions used in this manual. NOTE: Notes containing additional information. IMPORTANT: Information that is considered especially important.

Input, output and screen-messages are presented in the following font: message. Menus and switches are written as Menu. Submenus are indicated by the use of angle brackets:Menu > sub-menu > sub-menu.

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Introduction

About the model “ProSound α6” The ProSound α6 is intended to be used by doctors and other qualified personnel in fracture diagnostics and hemodynamic diagnostics. However, this equipment is not designed to be used in ophthalmic ultrasound diagnosis, as its sound intensity is not compliant with ophthalmic restrictions established by the FDA. Only physicians and other qualified personnel should operate this equipment for diagnostic purposes. Read section 1-1 of the Safety Instruction. 1)

PRECAUTIONS Concerning the Use/Management of the ProSound α6 •

Do not disassemble, repair or remodel this equipment or optional features without our consent. NOTE: Disassemble means to remove the parts or options from the equipment

using tools. NOTE: Remodel means to install or connect unauthorized parts or equipment,

including the power cord. •

Assembly of the equipment or optional accessories shall be performed by a third party certified by us. Please contact one of our offices listed on back cover. NOTE: Assemble means to install or connect parts or optional accessories on the

device using tools.

2)

•

Transporting this equipment (by vehicle/ship) shall be performed by a third party certified by the manufacturer. Please contact one of our offices listed on back cover.

•

Please conduct routine cleaning and inspection of the equipment. Refer to Chapter 5 of the Safety Instruction for details.

•

Ensure that the output level of the scan conforms to the required duration of diagnosis.

•

If any malfunction or abnormality is discovered during operation of the equipment, remove the probe from the patient immediately and discontinue use. If any abnormality is observed in the patient, provide proper care as quickly as possible. Refer to Chapter 4 of the Safety Instructions for more information on dealing with the equipment appropriately. If the malfunction is not listed in Chapter 4 of the Safety Instruction manual, contact one of our offices listed on back cover.

PRECAUTIONS for the ProSound α6 Installation This equipment is a electrical medical device that is intended for use in hospitals, and research facilities. The device should be installed in accordance with the following guidelines. •

Install in accordance with Chapter 3 of the Safety Instructions.

•

Install in an environment that conforms to the operating environments indicated in section 2-2-2 of the Safety Instruction manual.

•

Install in an environment that ensures electromagnetic compatibility, in accordance with section 1-2-6 of the Safety Instruction manual, "Precautions Concerning the Maintenance of Electromagnetic Compatibility," and Item 1-3, "Guidelines for Electromagnetic compatibility." NOTE: The electromagnetic compatibility (EMC) is the ability of device to function

satisfactorily in its electromagnetic environment without introducing intolerable electromagnetic disturbance to anything in that environment.

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MN1-5482 rev.10

Introduction

Classification of model “ProSound α6” • Protection against electric shock (ME equipment): class I • ME equipment • Protection against electric shock (Applied parts): Type BF applied parts –

Probe/scanner applied parts and parts treated as applied parts: Refer to the following diagram (Probe/Scanner Pattern Diagram) and table.

Figure: Probe/Scanner Pattern Diagram Above illustrates a surface/intraoperative probe. Below shows a coelomic probe. B

C

A

connector

D

connector

C

A

Applicable part of body

Applied part

parts treated as applied parts

B - C length

surface of body

Ultrasonic irradiation area (D)

A to B

100 cm

Intraoperative

Ultrasonic irradiation area (D)

A to B

20 cm

Endocavity

A to C

A to C

-

–

ECG The 2-meter length of the ECG cable extending from the ECG electrodes is treated as applied part (see diagram below). 2 meters ECG electrodes

connector ECG patient lead

• Protection against electric shock (Defibrillation-proof applied parts): Not suitable • Protection against harmful ingress of water or particulate matter –

IPX0 (Ordinary equipment)

–

Probe applied part: IPX7 (Watertight equipment)

• Suitability for use in an oxygen rich environment: Not suitable • Method(s) of sterilization: Not suitable for sterilization/disinfection with medicinal solution, gas or radiation. • Mode of operation: Continuous operation

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CONTENTS This book consists of two separate volumes. These two volumes have the same table of contents and the index respectively.

1. Measurement Functions 1-1. 1-2. 1-3. 1-4. 1-5.

1-6. 1-7.

1-8. 1-9.

1-10.

1-11. 1-12.

Preface... 1-1 Flow of Measurement Operations... 1-2 Switches Used for Measurement... 1-3 1-3-1. The function of the panel switch used by the measurement operation ... 1-3 Basic Operation Procedure for Measurement ... 1-4 1-4-1. Method of starting measurement... 1-4 Explanation of the Measurement Menus ... 1-9 1-5-1. When the measurement Study is changed... 1-9 1-5-2. When the measurement application is changed ... 1-10 Executing the Application Measurement Using the Transfer Function... 1-11 Measurement Mark and Measurement Method ... 1-13 1-7-1. Basic types of marks ... 1-13 1-7-2. Auxiliary line type marks... 1-13 1-7-3. Display mark ... 1-14 1-7-4. The basic operating method for each mark type ... 1-15 Basic Measurement Functional Outline... 1-23 1-8-1. Basic Measurement Functional List... 1-23 Measurement operation procedure... 1-27 1-9-1. B mode ... 1-27 1-9-2. M mode ... 1-46 1-9-3. D mode ... 1-51 1-9-4. B/D mode ... 1-67 1-9-5. B (Flow) mode ... 1-74 1-9-6. Calibration... 1-78 Preset Function... 1-83 1-10-1. Composition of the preset function ... 1-83 1-10-2. Basic operations and function of each button ... 1-84 1-10-3. Initializing Preset ... 1-85 1-10-4. Create Measurement Tools ... 1-86 1-10-5. Application Measurement Tools ... 1-92 1-10-6. Study Assignment ... 1-101 1-10-7. SW Assignment... 1-105 Calculation Formula & Reference ... 1-109 1-11-1. Calculation ... 1-109 Abbreviation... 1-113

2. Cardiac Measurement 2-1. 2-2.

Preface... 2-1 Cardiac Measurement Functional Outline ... 2-2 2-2-1. Cardiac Measurement Functional List ... 2-2 6

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2-3.

2-4.

2-5.

2-6.

2-7.

2-2-2. Items of Special Note... 2-7 2-2-3. Measurement Views for Measuring Cardiac Functions ... 2-8 Measurement operation procedure ... 2-10 2-3-1. B mode... 2-11 2-3-2. M mode... 2-32 2-3-3. D mode... 2-41 2-3-4. Time to Onset measurement ... 2-69 2-3-5. Flow mode ... 2-73 Report function ... 2-80 2-4-1. Basic Operation of a Report ... 2-80 2-4-2. Report Block...2-81 2-4-3. Description of Various Data Displayed in a Report ... 2-85 2-4-4. Function that Attaches an Ultrasound Image to a Report... 2-87 2-4-5. Printing Function ... 2-90 2-4-6. Output to a Personal Computer... 2-92 2-4-7. Output to a CSV file ... 2-93 Preset function ... 2-94 2-5-1. Preset Settings(Cardiac Measurement)... 2-94 2-5-2. PRESET list ... 2-95 Calculation Formula & Reference...2-104 2-6-1. Calculation... 2-104 2-6-2. Clinical References... 2-113 Abbreviation ... 2-121

3. Vascular Measurement 3-1. 3-2.

3-3.

3-4.

3-5.

3-6.

Preface ... 3-1 Vascular Measurement Functional Outline ... 3-2 3-2-1. Vascular Measurement Functional List ... 3-2 3-2-2. Items of Special Note... 3-3 Measurement operation procedure ... 3-4 3-3-1. B mode... 3-6 3-3-2. D mode... 3-16 Report function ... 3-27 3-4-1. Basic Operation of a Report ... 3-27 3-4-2. Report Block...3-28 3-4-3. Description of Various Data Displayed in a Report ... 3-32 3-4-4. W. Trace Function ... 3-40 3-4-5. Function that Attaches an Ultrasound Image to a Report... 3-42 3-4-6. Printing Function ... 3-45 3-4-7. Output to a Personal Computer... 3-47 3-4-8. Output to a CSV file ... 3-48 Preset function ... 3-49 3-5-1. Preset Settings... 3-49 3-5-2. PRESET list ... 3-50 Calculation Formula & Reference...3-58 3-6-1. Calculation... 3-58

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3-7.

3-6-2. Anatomy Check List ... 3-59 3-6-3. Clinical References ... 3-61 Abbreviation... 3-62

4. Abdominal measurement 4-1. 4-2.

4-3.

4-4.

4-5.

4-6.

4-7.

Preface... 4-1 Abdominal Measurement Functional Outline... 4-2 4-2-1. Abdominal Measurement Functional List... 4-2 4-2-2. Items of Particular Note ... 4-4 Measurement operation procedure... 4-5 4-3-1. B mode ... 4-6 4-3-2. D mode ... 4-15 Report function ... 4-24 4-4-1. Basic Operation of a Report... 4-24 4-4-2. Report Block ... 4-25 4-4-3. Description of Various Data Displayed in a Report... 4-29 4-4-4. Graph... 4-32 4-4-5. W. Trace... 4-33 4-4-6. Function that Attaches an Ultrasound Image to a Report ... 4-35 4-4-7. Printing Function... 4-38 4-4-8. Output to a Personal Computer ... 4-40 4-4-9. Output to a CSV file... 4-41 Preset function... 4-42 4-5-1. Preset Settings ... 4-42 4-5-2. PRESET list... 4-43 Calculation Formula & Reference ... 4-49 4-6-1. Calculation ... 4-49 4-6-2. Clinical References ... 4-49 Abbreviation... 4-50

5. Obstetrical Measurement 5-1. 5-2.

5-3.

5-4.

Preface... 5-1 Obstetrical Measurement Functional Outline ... 5-2 5-2-1. Obstetrical Measurement Functional List ... 5-2 5-2-2. List of obstetrical measurement name built into system... 5-5 5-2-3. Items of Special Note ... 5-9 Measurement operation procedure... 5-10 5-3-1. B mode ... 5-11 5-3-2. M mode ... 5-27 5-3-3. D mode ... 5-29 5-3-4. Multiple pregnancies... 5-34 5-3-5. Interval Growth Rate... 5-36 Report function ... 5-37 5-4-1. Basic Operation of a Report... 5-37 5-4-2. Report Block ... 5-38

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5-5.

5-6.

5-7.

5-4-3. Description of Various Data Displayed in a Report ... 5-42 5-4-4. Function that Attaches an Ultrasound Image to a Report... 5-59 5-4-5. Printing Function ... 5-62 5-4-6. Output to a Personal Computer... 5-64 5-4-7. Output to a CSV file ... 5-65 Preset function ... 5-66 5-5-1. Preset Settings... 5-66 5-5-2. PRESET list ... 5-68 Calculation Formula & Reference & Table...5-77 5-6-1. Calculation... 5-77 5-6-2. Anatomy Check List ... 5-81 5-6-3. BPP Scoring... 5-83 5-6-4. References... 5-85 5-6-5. Data in the fetal growth table inside the system ... 5-99 Abbreviation ... 5-140

6. Gynecological Measurement 6-1. 6-2.

6-3.

6-4.

6-5.

6-6.

6-7.

Preface ... 6-1 Gynecological Measurement Functional Outline ... 6-2 6-2-1. Gynecological Measurement Functional List... 6-2 6-2-2. Items of Special Note... 6-3 Measurement operation procedure ... 6-4 6-3-1. B mode... 6-6 6-3-2. D mode... 6-13 Report function ... 6-15 6-4-1. Basic Operation of a Report ... 6-15 6-4-2. Report Block...6-16 6-4-3. Description of Various Data Displayed in a Report ... 6-20 6-4-4. Function that Attaches an Ultrasound Image to a Report... 6-27 6-4-5. Printing Function ... 6-30 6-4-6. Output to a Personal Computer... 6-32 6-4-7. Output to a CSV file ... 6-33 Preset function ... 6-34 6-5-1. Preset Settings... 6-34 6-5-2. PRESET list ... 6-35 Calculation Formula & Reference...6-40 6-6-1. Calculation... 6-40 6-6-2. Anatomy Check List ... 6-40 6-6-3. Clinical References... 6-41 Abbreviation ... 6-43

7. Urological Measurement 7-1. 7-2.

Preface ... 7-1 Urological Measurement Functional Outline ... 7-2 7-2-1. Urological Measurement Functional List ... 7-2

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7-3.

7-4.

7-5.

7-6.

7-7.

7-2-2. Items of Particular Note ... 7-3 Measurement operation procedure... 7-4 7-3-1. B mode ... 7-6 7-3-2. D mode ... 7-18 Report function ... 7-20 7-4-1. Basic Operation of a Report... 7-20 7-4-2. Report Block ... 7-21 7-4-3. Description of Various Data Displayed in a Report... 7-25 7-4-4. Graph function ... 7-30 7-4-5. Function that Attaches an Ultrasound Image to a Report ... 7-31 7-4-6. Printing Function... 7-34 7-4-7. Output to a Personal Computer ... 7-36 7-4-8. Output to a CSV file... 7-37 Preset function... 7-38 7-5-1. Preset Settings ... 7-38 7-5-2. PRESET list... 7-39 Calculation Formula & Reference ... 7-43 7-6-1. Calculation ... 7-43 7-6-2. References ... 7-44 Abbreviation... 7-46

8. eTRACKING Measurement 8-1. 8-2.

8-3.

8-4.

Preface... 8-1 eTRACKING Measurement Functional Outline ... 8-1 8-2-1. Outline of Function ... 8-1 8-2-2. Measurement operation procedure... 8-1 Report function ... 8-2 8-3-1. Basic Operation of a Report... 8-2 8-3-2. Report Block ... 8-3 8-3-3. Description of Various Data Displayed in a Report... 8-5 8-3-4. Function that Attaches an Ultrasound Image to a Report ... 8-7 8-3-5. Printing Function... 8-10 8-3-6. Output to a Personal Computer ... 8-12 8-3-7. Output to a CSV file... 8-13 Preset function... 8-14 8-4-1. Preset Settings ... 8-14 8-4-2. PRESET list ... 8-15

9. SMALL PARTS MEASUREMENT 9-1. 9-2.

9-3.

Introduction... 9-1 Overview of the Small Parts Measurement Function ... 9-2 9-2-1. Small Parts Measurement Function List ... 9-2 9-2-2. Items of Special Note ... 9-3 Measurement Procedure... 9-4 9-3-1. B mode ... 9-6

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9-4.

9-5.

9-6.

9-7.

9-3-2. D mode... 9-11 Report Function ... 9-13 9-4-1. Basic Operation for Reports ... 9-13 9-4-2. Report Block...9-14 9-4-3. Description of Various Data Displayed in a Report ... 9-18 9-4-4. Function to Attach Ultrasound Images to a Report ... 9-27 9-4-5. Print function ... 9-30 9-4-6. Output to a Personal Computer... 9-32 9-4-7. Output to a CSV file ... 9-33 Preset function ... 9-34 9-5-1. Preset Settings... 9-34 9-5-2. Preset list... 9-35 Calculation Formula & References ... 9-39 9-6-1. Calculation... 9-39 9-6-2. Clinical References... 9-39 Abbreviation ... 9-40

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1.Measurement Functions 1-1.Preface

1. MEASUREMENT FUNCTIONS 1-1.

Preface The measurement functions of the ProSound α6 are divided by application (clinical area) into Abdomen, OB, GYN, Cardio, Vascular, URO, eTracking and Small Parts. The measurement values found in ultrasonic examination are recorded and managed for each patient. They are effective for evaluation of observation over time. In addition to selecting a measurement from the menu, you can also transfer the results of a basic measurement to an applied measurement and compute the results of applied measurement. Also, the available measurements depend on the application, so there are ultrasonic studies that bring together the measurement items for each application. (Examples of studies for each application)

Application

Remark

Ultrasonic Study

Cardio

Cardiac Func.

Coronary

TDI

Vascular

Carotid Artery

Lower Ext Artery Lower Ext Vein

Upper Ext Vein

TCD

Asynchrony

Refer to Section 2

Upper Ext Artery

Refer to Section 3

Abdom

Basic

Refer to Section 4

OB

Basic

Early

Twin Basic

GYN

GYN

Follicles

Bladder

Refer to Section 6

URO

Prostate&SV

Bladder&Testis

Kidney

Refer to Section 7

eTRACKING

eTRACKING

FMD

Wave Intensity

Refer to Section 8

Small Parts

Breast

Thyroid

Twin Early

Refer to Section 5

Refer to Section 9

[Remark] These application measurement functions are based on documents that indicate the clinical effectiveness of the measurements concerned. Consequently, they use measurement conditions and special computation formulas. The abovementioned documents are listed at the end of the section for each application measurement function, so refer to the relevant documents. [Remark] The application measurement functions of the ProSound α6 include a function called EXAM. HISTORY for performing a progress observation (development evaluation, treatment evaluation, and so on.). This function records and manages measurement values and operation index values obtained during various ultrasonic examinations, and displays the results as numerical values and/or graphs. For this reason, in order to use this function correctly, be sure to enter the patient data using the ID screen before performing an ultrasonic examination. The various measurement functions of the ProSound α6 diagnostic ultrasound system are described in the following sections. Section1 Section2 Section3 Section4

Basic Measurement Cardiac Measurement Vascular Measurement Abdominal Measurement

Section5 Section6 Section7 Section8 Section9

This section describes the basic measurement method. This section consists of 114 pages. MN1-5482 Rev.10

1-1

Obstetric Measurement Gynecological Measurement Urological Measurement eTRACKING Measurement Small Parts Measurement

1.Measurement Functions 1-2.Flow of Measurement Operations

1-2.

Flow of Measurement Operations (1)

Select the preset application (clinical area). → In order to obtain correct ultrasonic measurement results, the computation equations and patient management database are decided according to the application selected.

(2)

Input the patient information. → Input the patient information with the New Patient (ID) screen in order to correctly operate the patient management functions effectively for evaluating observations over time. For details, refer to Section 1 How to Use.

(3)

Select the ultrasonic study. → The measurement functions that can be executed are determined by the selected ultrasonic examination study. Refer to Section 1-5-1. "When the measurement Study is changed"

(4)

Execute the measurement. → The measurement values are updated in real time until the measurement operation is finalized. Up to 10 caliper marks can be displayed in the measurement results display area. Section 1-4-1-1. "Starting from the + switch". Section 1-4-1-3. "Starting from the MEASUREMENT switch". Section 1-4-1-4. "Starting from a Hot key".

(5)

Select the application.

Input the patient information.

Select the ultrasonic study.

Execute the measurement.

Report

Report

→ The measurement values displayed on the report screen can be set with the preset function to either the most recent values or an average. Also, up to six of these measurement values can be preset for each measurement item. (For an explanation of each item, see the pages for each application.) [Remark] The ProSound α6 has the following three functions for recording the results of examinations. a.

When operation (4) above is performed and a report is displayed, it is recorded by the recording device (thermal printer) connected to the ProSound α6.

b.

The report can be printed on paper using to Printer in the Output function of the Report screen.

c.

The measurement results can be transmitted to the application software of an external personal computer using to PC in the Output function of the Report screen.

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1.Measurement Functions 1-3.Switches Used for Measurement

1-3.

Switches Used for Measurement

1-3-1. The function of the panel switch used by the measurement operation (1) - (2) are switches for starting measurement, and (3) - (7) are switches related to measurement operations.

Touch Panel

USER1 USER3 Rotary encoder 4

USER2

MEASUREMENT switch

(1)

:The measurement menu corresponding to the display mode is displayed.

(2)

+ switch

: Directly starts the basic measurement corresponding to each display mode registered in a preset. Also, displays a new mark if pressed during measurement.

(3) (4)

Trackball ENTER switch

(5) (6)

:Used to move a measurement mark. :Press this switch to separate marks or to change over the mark to be moved by the trackball. Press this switch and keep it depressed momentarily to finalize the measurement function. CANCEL switch :Returns the system to the immediately preceding (or initial) mark display condition. Touch panel :Measurement menu is displayed.

(7)

Rotary encoder 4 :The trace line is deleted little by little.

[Remark] USER 1, 2, 3 switch: Directly starts the function or measurement registered using a preset. MN1-5482 Rev.10

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1.Measurement Functions 1-4.Basic Operation Procedure for Measurement

1-4.

Basic Operation Procedure for Measurement

1-4-1. Method of starting measurement You can use one of the following three methods to start a measurement. (1)

Display the measurement menu, and start the selected measurement.

(2)

Press the + switch to perform (basic) measurement.

[Remark] You can transfer the results obtained here to each parameter of the application measurement. Refer to Section 1-6. "Executing the Application Measurement Using the Transfer Function". (3)

Start measurement directly. → Press the hot key (alphabet key) on the full keyboard to start the measurement.

1-4-1-1. (1)

Starting from the + switch Press the + switch. → The preset measurement is started.

Control menu

Measurements set in Preset

[Remark] Up to eight frequently used basic measurement items can be preset to the + switch for each display mode. Control menu: Clear:Measurement function is finished. VCR Calib:Calibration for DVD playback measurement can be performed. Trace Manual:It is switched to a manual trace directly from an auto trace of a doppler waveform. Locate:Change the position of (move) the measurement results display area. Mark Display:On/Off of displaying caliper mark is made. Report:Report of application measurement is displayed. [Remark] Control menu is different with each an application.

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1.Measurement Functions 1-4.Basic Operation Procedure for Measurement

(2)

Select the basic measurement item which is carried out on the touch panel, and perform the measurement.

(3)

After measurement, to measure again, press the + switch. → The last measurement is started.

[Remark] Pressing the CANCEL switch returns the system to the status before separation without finalizing the measured caliper mark. If the CANCEL switch is pressed before the caliper mark is separated, the mark is erased.

1-4-1-2.

Starting measurement with a compound mode image

When pressing the + switch on hybrid modes (B/M and B/D modes), the measurement corresponding to each ultrasound image (B, M, and D) is performed. For example, for B/M mode as in the figure below, when the + switch is pressed, the caliper mark is displayed on the M image with a priority order (D → M → B). The caliper mark is moved to the B mode image side with the trackball. The moment at which the caliper mark is moved into the B mode image it becomes Dist. The measurement items and control menu display at the bottom of the screen also change to the B mode image. Moving the + mark to the B (M) image with the trackball

M.VEL

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1.Measurement Functions 1-4.Basic Operation Procedure for Measurement

1-4-1-3. (1)

Starting from the MEASUREMENT switch Press the

switch.

→ The preset measurement menu and control menu are displayed.

Measurement menu

[Remark] Pressing the (2)

switch on the operation panel erases the measurement menu.

Select the measurement item displayed on the touch panel. → The selected measurement starts.

Example: Uterus measurement

The proceeding order of the measurements can be selected voluntarily.

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1.Measurement Functions 1-4.Basic Operation Procedure for Measurement

1-4-1-4.

Starting from a Hot key

Pressing a letter key starts the measurement item or control function allocated to that key directly without passing through the measurement menu. Here is an explanation using an example in which the GYN measurement Uterus (Volume) is assigned to the Q key. (1)

Press the Q key. → The system starts Uterus measurement and measures each position.

[Remark] Measurement items can be assigned to letter keys on the keyboard with the preset function.

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1.Measurement Functions 1-4.Basic Operation Procedure for Measurement

1-4-1-5.

Erasing individual marks

By performing the following operation, measurement values corresponding to the measurement marks which were fixed can be erased individually. (1)

Select the ch with the same number as the measurement results for erasing from the touch panel.

ch which corresponds to the number of measured times is displayed.

(2)

For example, press the ch1 switch once. → The caliper mark becomes ready for re-measurement.

(3)

Once again, press the ch switch which was pressed in (2). → The caliper mark with the number of 1 and the measurement results are erased.

[Remark] When the Clear switch on the control menu is pressed, the caliper mark and the measurement results are erased. To erase only the executed mark press the CANCEL switch on the operation panel twice. If the measurement has not yet been carried out (when there is one mark), pressing the CANCEL switch ends the measurement function.

1-4-1-6.

Ending a measurement function

The measurement marks and results on the screen are erased in the following cases. • When you press (select) the Clear switch. • When you press the MEASUREMENT switch. • When you cancel a freeze status (applies only when the Caliper auto off function in the Preset menu is ON)

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