Sun Nuclear MapCHECK 3 Manuale utente

Your Most Valuable QA & Dosimetry Tools

MapCHECK®3 User Guide

The New Benchmark for 2D IMRT QA

Model 1178

User Guide, MapCHECK®3

The information contained in this guide and the accompanying software program are copyrighted

and all rights are reserved by Sun Nuclear Corporation. Copying, duplicating, selling, or otherwise

distributing any part of this product without the prior written consent of Sun Nuclear Corporation

is prohibited.

Sun Nuclear Corporation reserves the right to make periodic modifications to this guide without

obligation to notify any person or entity of such revision.

This guide is written for:

MapCHECK 3 Firmware version: 1.0.0.8

MapCHECK 3 FPGA Firmware version: 1.0.0

SNC Patient Software version: 8.2

MapCHECK®3, SunPoint®2, SNC Patient™ Software, and MapPHAN™ are trademarks of Sun

Nuclear Corporation. Other trademarks or tradenames are the property of their respective

owners. Solid Water®is a registered trademark of Gammex Inc., a wholly owned subsidiary of

Sun Nuclear Corporation.

Document 1178012, Rev C-1, 25 January 2019

Sun Nuclear Corporation

3275 Suntree Boulevard

Melbourne, FL 32940 USA

+1-321-259-6862

www.sunnuclear.com

Preface iii

Preface

Intended Use

Model 1178 MapCHECK 3 is a two-dimensional (2D) radiotherapy beam dosimetry QA system

intended for the measurement of radiation dose distributions for the purpose of comparison with

a simulated dose distribution in the same phantom geometry as calculated by the treatment

planning system (TPS).

CAUTION: Federal law restricts this device to sale by or on the order of a qualified

radiation therapy professional, such as a medical dosimetrist, medical physicist, or

radiation oncologist for use in radiation oncology.

Description

The MapCHECK®3 device contains an array of 1,527 SunPoint®2 Diode Detectors that measure

ionizing radiation to simulate patient structure during delivery of a treatment plan dose. The SNC

Patient™ software displays the MapCHECK 3 measurement and compares the results against the

imported treatment plan.

For detailed SNC Patient software instructions, see the SNC Patient online Help or the SNC Patient

Software Reference Guide, available on the Sun Nuclear Support website (see Support Website

on page 15).

Quality and Regulatory Systems

Sun Nuclear meets worldwide standards, including ISO 13485, FDA 21 CFR 820 Quality System

Regulations, Health Canada's Medical Device Regulations, the European Medical Device Directive

93/42/EEC, and all other relevant country regulations. Sun Nuclear is certified and authorized to

affix the CE mark on products for marketing and distribution in the Member States of the European

Union.

Sun Nuclear’s quality systems registrar and European Notified Body for Class II medical products

is BSI. Sun Nuclear’s Class I medical products are listed in Europe with the Competent Authority

of Germany.

Sun Nuclear Corporation is an ISO 13485 certified

company.

Health and Safety Information

• Use only the power supply that is provided with the device; it is a medical grade power

supply.

• Never pull on a cable to disconnect it. Always grasp the plug or connector.

•The device is not intended to be used in an oxygen rich environment.

• Do not operate the device in any strong magnetic fields (i.e., MRI).

For instructions to report health or safety related concerns, see Reporting Health or Safety Related

Issues or Concerns on page 24.

WARNING: To avoid risk of electric shock, this equipment must only be connected to

a supply mains with protective earth (ground).

iv Preface

This page is intentionally left blank.

Contents v

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Quality and Regulatory Systems. . . . . . . . . . . . . . . iii

Health and Safety Information . . . . . . . . . . . . . . . . iii

Section 1. Introduction . . . . . . . . . . . . . . . . . . 1

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Products, Options and Accessories . . . . . . . . . . . . 1

MapCHECK 3 Quick Start Procedure . . . . . . . . . . . 2

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Connect Hardware and Launch Software . . . . . 3

Overview of SNC Patient Software . . . . . . . . . . 4

Section 2. Operation . . . . . . . . . . . . . . . . . . . . 5

Temperature Equilibrium. . . . . . . . . . . . . . . . . . . . . 5

Background Measurement . . . . . . . . . . . . . . . . . . . 5

Array Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Array Calibration Conditions. . . . . . . . . . . . . . . . 5

Array Calibration Modes. . . . . . . . . . . . . . . . . . . 5

Flattening Filter Free (FFF) Beams . . . . . . . . . . . 6

Array Calibration Procedure . . . . . . . . . . . . . . . . 6

Recalibration Interval . . . . . . . . . . . . . . . . . . . . . 6

Absolute Dose Calibration. . . . . . . . . . . . . . . . . . . . 6

Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Absolute Dose for Static Deliveries . . . . . . . . . . . . 6

Determine the Known Dose. . . . . . . . . . . . . . . . 6

Recommended Method . . . . . . . . . . . . . . . . 6

Alternate Methods. . . . . . . . . . . . . . . . . . . . . 7

Deliver Absolute Dose Calibration

Measurement . . . . . . . . . . . . . . . . . . . . . . . . 7

Absolute Dose for Rotational Deliveries . . . . . . . . . 8

Determine the Known Dose. . . . . . . . . . . . . . . . 8

Deliver Absolute Dose Calibration

Measurement . . . . . . . . . . . . . . . . . . . . . . . . 9

Set Up File Manager . . . . . . . . . . . . . . . . . . . . . . . . 9

Creating a New Patient Plan. . . . . . . . . . . . . . . . 9

Adding Files to Patient Plan . . . . . . . . . . . . . . . . 9

Position MapCHECK 3 for Measurement . . . . . . . . 9

Measurement Without MapPHAN Accessory . . 9

Measurement with MapPHAN Accessory . . . . 10

Acquire Measurement . . . . . . . . . . . . . . . . . . . . . . 10

MapCHECK 3 Measurement File Formats . . . . 11

Import Planned Dose. . . . . . . . . . . . . . . . . . . . . . . 11

Compare Device Measured to Planned Dose . . . . 12

Section 3. Support and Maintenance . . . . . . 13

Hardware Maintenance . . . . . . . . . . . . . . . . . . . . . 13

Minimizing Radiation Damage . . . . . . . . . . . . . 13

Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Disposal and Recycling. . . . . . . . . . . . . . . . . . . 13

Maintaining Firmware . . . . . . . . . . . . . . . . . . . . . . 14

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Contacting Sun Nuclear Support . . . . . . . . . . . . . . 15

Support Website . . . . . . . . . . . . . . . . . . . . . . . . 15

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Section 4. Hardware Reference. . . . . . . . . . . 17

Top and Bottom Panels . . . . . . . . . . . . . . . . . . . . . 17

Detector Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Detector Plane Marking. . . . . . . . . . . . . . . . . . . . . 19

Section 5. Specifications . . . . . . . . . . . . . . . 21

System Requirements . . . . . . . . . . . . . . . . . . . . . . 21

MapCHECK 3 Specifications . . . . . . . . . . . . . . . . . 21

Appendix A: Regulatory Supplement . . . . . . 23

Sun Nuclear Corporation Symbols . . . . . . . . . . . . 23

Operator Responsibility . . . . . . . . . . . . . . . . . . . . . 24

Reporting Health or Safety Related Issues or

Concerns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Modifications to Equipment . . . . . . . . . . . . . . . . . 24

Interaction with Other Electrical Equipment . . . . . 24

Contents

vi Contents

This page is intentionally left blank.

Parts 1

1 Introduction

Parts

Figure 1-1. Parts Provided with MapCHECK 3

No. Part Number Qty Description

11178400Z 1MapCHECK 3

2801073Z 1Power and data cable, 8-pin DIN, M/M, 25 m (82 ft.), blue

3801041Z 1USB Cable, A-B male, 2 m (6.5 ft.)

4801008Z 1Line power cord, plug style based on shipping address

50224502Z 1Power supply, switching, 110-240 VAC, 50-60 Hz to 18 VDC, filtered

60224500Z 1Power Data Interface (PDI) 3.0

-- 1177150 1Storage and carry case (not shown)

-- 1178012 1MapCHECK 3 User Guide (this guide, not shown)

-- 0224011 1Bulletin 02-09, Power Data Interface (PDI) 3.0 (not shown)

Products, Options and Accessories

Additional products, options, or accessories may be included in the shipment depending on

purchase options.

PC (provided by

user)

Table 1-1. Optional Accessories for MapCHECK 3

Part Number Description

801074Z Power and data cable, 8-pin DIN, M/M, 40 m (131 ft.), blue

1177000-VZ

1177000-SZ

1177000-EZ

Isocentric Mounting Fixture

1122000-EZ

1122000-EAZ

1122000-VZ

Gantry Mounting Fixture

2Section 1. Introduction

The following documents provide information about MapCHECK 3 accessories:

• Isocentric Mounting Fixture or Gantry Mounting Fixture: IMF/GMF User Guide, P/N 1122014

•MapPHAN:MapPHAN User Guide, P/N 1083012

MapCHECK 3 Quick Start Procedure

Perform the following steps to begin using MapCHECK 3

1 Download software, license, manuals, and virtual CT images.

a. Log in to the Sun Nuclear Support site at www.sunnuclear.com/support (see Support

Website on page 15) and navigate to the product panel for your MapCHECK 3 (by serial

number).

b. In the Product Downloads panel, select Generate Software License and follow the on-

screen instructions to save the license file.

c. Under Download Type select Software (Current Version), and then download the

appropriate SNC Patient software version for your PC (32-bit or 64-bit).

d. Under Download Type select Documentation, and then download the SNC Patient Soft-

ware Reference Guide.

e. If you will use MapCHECK 3 to perform VMAT QA measurements during which the gantry

rotates around the phantom, download a virtual CT phantom of MapCHECK 3 in a Map-

PHAN accessory. Select Download Type > CT Data, and then select the virtual phantom

that matches the buildup of your MapPHAN (5 cm or 10 cm). Each virtual phantom

includes an RT Structure that provides density overrides for each region.

2 Right-click the downloaded software executable and select Run as Administrator. When

prompted for the location of the license file, move the license file into the default directory

displayed on-screen. The software is now ready for use.

3 Set up MapCHECK 3 and connect cables. See Setup on page 3.

4 Using SNC Patient software, perform array calibration in ‘Standard’ mode. See Array

Calibration on page 5.

5 Using SNC Patient software, perform absolute dose calibration. See Absolute Dose

Calibration on page 6.

6 Using your TPS software, plan a static 10 cm x 10 cm field (or machine-specific reference) on

the MapCHECK 3 phantom and export DICOM RT Dose and RT Plan files.

7 Set up the MapCHECK 3 to the linac using the same setup as Step 6. See PositionMapCHECK

3 for Measurement on page 9.

1122-AZ Adapter plate for Gantry Mounting Fixture



1083000-0

1083000-1

Homogeneous water equivalent phantom that holds MapCHECK 3 at isocenter for

rotational dosimetry

• Model 1083 MapPHAN™ 5 cm

• Model 1083 MapPHAN™ 10 cm

1174105Z Solid Water® HE 30.0 cm x 35.2 cm x 0.5 cm buildup plate

1174106Z Solid Water® HE 30.0 cm x 35.2 cm x 1.0 cm buildup plate

1174107Z Solid Water® HE 30.0 cm x 35.2 cm x 2.0 cm buildup plate

1174108Z Solid Water® HE 30.0 cm x 35.2 cm x 5.0 cm buildup plate

WARNING: Use only parts and accessories supplied by Sun Nuclear for use with

MapCHECK 3. Use of other devices may result in incorrect measurements.

Table 1-1. Optional Accessories for MapCHECK 3 (Continued)

Part Number Description

Note: Each image in the virtual CT phantom is 512 x 512 pixels to allow use in most

treatment planning systems.

Setup 3

8 Using SNC Patient software, click Start and then turn on the beam. When the beam turns off,

click Stop. The radiation dose distribution is displayed in Set 1. See Acquire Measurement on

page 10.

9 Right-click in the Set 2 panel, select Open DICOM Plan/Dose File Set from the right-click

menu, select the DICOM data that you exported in Step 6, and then click Open. The planned

dose appears in Set 2. See Import Planned Dose on page 11.

10 Compare the MapCHECK 3 measurement to the planned dose. See Compare Device

Measured to Planned Dose on page 12.

If device measured to planned dose comparisons do not exhibit a satisfactory level of

agreement, investigate these differences as described in Eliminating Sources of Error in the

SNC Patient Software Reference Guide or online Help.

Setup

Connect Hardware and Launch Software

1Verify that the power source matches the power requirements. The power source must be

earth grounded.

2 Connect cables as shown in Parts on page 1. Route the 25 m power and data cable from the

control room to the treatment room such that it does not present a trip hazard.

3 Right-click SNC Patient desktop icon and select Run as administrator.

• The software checks the license and verifies computer hardware requirements.

• The software finds the connected device and then initiates a background measurement.

During the background measurement, each detector is checked for leakage. If leakage

exceeds the specified threshold, the detector is automatically disabled and a warning is

displayed.

Note: The MapCHECK 3 must be used with the provided PDI 3.0, blue power and data

cable, and PDI power supply. Other PDI devices (such as PDI 2.0) and other power and

data cables (such as the gray cable) are not supported for use with MapCHECK 3.

PDI 3.0 and the blue PDI power and data cable are compatible with all Sun Nuclear

products that use a PDI device.

CAUTION: If a system hardware warning is displayed, the computer hardware should

be upgraded as soon as possible. Otherwise, multi-frame measurement files may

display ‘missed’ updates, which could affect various analyses that require real-time

data.

4Section 1. Introduction

Overview of SNC Patient Software

Figure 1-2. Example of MapCHECK 3 Data Displayed in SNC Patient Software

No. Description

1Menu and toolbar

2Set 1 panel – displays device measured data or other data types

3Set 2 panel – displays planned dose data or other data types

4Profile and Histogram panel – displays a profile across a selected axis or displays a histogram

5Dose Summary/Statistics panel – displays absolute dose values or gamma/dose difference summary

index

6Compare panel – compares the data loaded in Sets 1 and 2

7Analysis panel – select analysis type, analysis criteria, and comparison results displayed in

Compare panel.

1 2 3

456

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