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Storing ECG to a PACS

, 16 Oct 2008
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An article on a service that will store an ECG copied to a directory at a PACS. (supported formats SCP-ECG, DICOM-ECG and a recent version of HL7 aECG)

Introduction

The application in this article will allow easy storing of electrocariographs (ECGs) to a DICOM PACS.

Background

Many ECG Cart manufacturers have got their own closed format. For Medical Images, the DICOM standard has provided hospitals with manufacturer independent solutions. Some manufacturers recently started adopting DICOM for ECG systems.

In 2008, an ECG Toolkit has been released which provides support for 3 major open ECG formats: SCP-ECG, HL7 aECG and DICOM-ECG. The Toolkit is available here.

Besides providing an ECG Library, the ECG Toolkit also has got some handy applications including a basic ECG viewer:

ECG Viewer provided by the C# ECG Toolkit

Using the Application

The application can be used as a Service or as a command line application.

To use the application as a service, use installutil to register the service. Start application manually from the management console.

To use the application from the command line, use:

> ECGtoPACS.exe runcmd

To configure the application, change the values specified in ECGtoPACS.exe.config:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
	<appSettings>
		<add key="ImportDir" value="C:\ecg2pacs" />
		<add key="EraseOnSuccess" value="true" />
		<!--<span class="code-comment"> configuration items for the DICOM-ECG format --></span>
		<add key="Mortara Compatibility" value="true" />
		<!--<span class="code-comment"> configuration items for the DICOM PACS --></span>
		<add key="Server" value="127.0.0.1" />
		<add key="AESCU" value="ANYSCU" />
		<add key="AESCP" value="STORESCP" />
		<add key="Port" value="104" />
	</appSettings>
</configuration>

Place a SCP-ECG, HL7 aECG or DICOM-ECG file into the ImportDir. Example ECG files can be found here.

Using the Code

Reading an ECG of unknown type can be done by:

UnknownReader reader = new UnknownReader();
IECGFormat src = reader.Read(sFilePath);

if (reader.getError() != 0)
{
	ServiceLogger.Instance.Log("Reading ECG error: " + 
		reader.getErrorMessage() + "!", EventLogEntryType.FailureAudit);
	return;
}

if ((src == null)
||  !src.Works())
{
	ServiceLogger.Instance.Log("Unknown error during reading of ECG!", 
				EventLogEntryType.FailureAudit);
	return;
}

Sending ECG to PACs is performed by:

IECGManagementSystem pacs = ECGConverter.Instance.getECGManagementSystem("PACS");

pacs.Config.Set(_SystemConfig); // set configuration of PACS

// save ECG to PACS providing an PatientID (null) and DICOM format configuration.
if (pacs.SaveECG(src, null, _FormatConfig) != 0) 
{
	ServiceLogger.Instance.Log("Storing ECG to PACS failed!", 
				EventLogEntryType.FailureAudit);
	return;
}

Points of Interest

Retrieving of ECG information can be achieved by using five properties provided by IECGFormat interface. The five properties are:

  • Demographics
  • Signals
  • Diagnostics
  • GlobalMeasurements
  • LeadMeasurements

History

  • 13th October, 2008: First version of ECGtoPACS

License

This article, along with any associated source code and files, is licensed under The Apache License, Version 2.0

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About the Author

MJB van Ettinger
Software Developer Erasmus MC
Netherlands Netherlands
No Biography provided

Comments and Discussions

 
GeneralMy vote of 3 PinmemberMember 1029152423-Sep-13 0:33 
GeneralRe: My vote of 3 PinmemberMJB van Ettinger23-Sep-13 1:34 
GeneralRe: My vote of 3 PinmemberMember 1029152421-Jan-14 2:49 
Questionsave dicom files to pc without pacs PinmemberVincentZh11-Apr-13 20:54 
AnswerRe: save dicom files to pc without pacs PinmemberMJB van Ettinger3-Jun-13 1:18 
Questionsupport for Mortara XML files? Pinmemberalwittta29-Feb-12 23:09 
AnswerRe: support for Mortara XML files? PinmemberMJB van Ettinger3-Jun-13 1:23 
QuestionUnable to open the sample .xml file. Pinmembervib_mun@indiatimes.com23-Jan-11 1:42 
AnswerRe: Unable to open the sample .xml file. Pinmembervib_mun@indiatimes.com31-Jul-11 18:54 
Generalnice Pinmemberkarapelerin20-Dec-09 4:59 
GeneralWrong storing ECG to PACS PinmemberMember 19947322-Jan-09 1:02 
GeneralRe: Wrong storing ECG to PACS [modified] PinmemberMJB van Ettinger22-Jan-09 1:58 
GeneralHOW TO CONNECT ECG TO PC? Pinmembercuthkid24-Jun-09 19:55 
AnswerRe: HOW TO CONNECT ECG TO PC? PinmemberMJB van Ettinger24-Jun-09 21:07 
Most likely the application did not load the DICOM plug-in. You should add the "ECGCpluginDICOM.dll" (together with "dicomcs.dll") in the same folder as the main assembly.
 
If this doesn't work you can also add a line of code at the beginning of the application to specifically load any plug-in DLL:
ECGConverter.AddPlugin("path/to/plugin/dll");
Or for multiple plug-ins:
ECGConverter.AddPlugins("path/to/plugin/dir");
I hope this will solve your issue.
GeneralRe: HOW TO CONNECT ECG TO PC? Pinmembercuthkid24-Jun-09 22:34 
GeneralGood PinmemberUroš Šmon19-Oct-08 22:30 
GeneralNice.. Pinmemberhughd16-Oct-08 5:51 
GeneralRe: Nice.. PinmemberMJB van Ettinger16-Oct-08 21:14 

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