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Network Security in Medical

ImagingRAKESH SHARMA

FSU-TCC Intern 2009 at TMHBiomedical Imaging Program

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Network Security in Medical ImagingWhy it is needed?

Critical Medical Information Patient Family Data Insurance and Bank Accounts Health benefits Benefactors Information

Everybody wants his/her data confidential

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Networking in Medical Data DICOM images PACS image storage and transfer is

DICOM (Digital Imaging and C omm unications in Medicine) by communications and informationtechnologies

PACS consists of four major components:1. The imaging modalities such as CT and MRI,2. Secured network (SSH, SETWIN, eFilm) for the

transmission of patient medical information,3. Workstations for interpreting and reviewingimages, and archives for the storage and retrievalof images and reports (Solaris, Octane, HP)

http://en.wikipedia.org/wiki/DICOMhttp://en.wikipedia.org/wiki/DICOMhttp://en.wikipedia.org/wiki/Telecommunicationhttp://en.wikipedia.org/wiki/DICOMhttp://en.wikipedia.org/wiki/Information_technologyhttp://en.wikipedia.org/wiki/DICOMhttp://en.wikipedia.org/wiki/DICOMhttp://en.wikipedia.org/wiki/Telecommunicationhttp://en.wikipedia.org/wiki/Information_technologyhttp://en.wikipedia.org/wiki/Information_technologyhttp://en.wikipedia.org/wiki/Information_technologyhttp://en.wikipedia.org/wiki/Information_technologyhttp://en.wikipedia.org/wiki/Telecommunicationhttp://en.wikipedia.org/wiki/Telecommunicationhttp://en.wikipedia.org/wiki/DICOMhttp://en.wikipedia.org/wiki/DICOM

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Data Sharing in Medical Imaging store-and- forward , remote monitoring and

interactive services among: Juke BoxTechnicians Radiologists Main Server

Send radiographic images from one location toanother by:1. image sending station JUKE BOX,2. a transmission network,

3. a receiving / image review station. The most typical implementation are two

computers connected via Internet.

http://en.wikipedia.org/wiki/Interactivehttp://en.wikipedia.org/wiki/Store-and-forwardhttp://en.wikipedia.org/wiki/Remote_monitoringhttp://en.wikipedia.org/wiki/Interactivehttp://en.wikipedia.org/wiki/Interactivehttp://en.wikipedia.org/wiki/Remote_monitoringhttp://en.wikipedia.org/wiki/Store-and-forwardhttp://en.wikipedia.org/wiki/Store-and-forwardhttp://en.wikipedia.org/wiki/Store-and-forwardhttp://en.wikipedia.org/wiki/Store-and-forwardhttp://en.wikipedia.org/wiki/Store-and-forward

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Network Servers

Internet server is a conventional internetweb Linux IA server .

Local Wiki system is installed in Linuxbootable USB flash memory drive.

Server is based on FedoraCore2(http://fedora.redhat.com/ )

Linux distribution of bootable USB flashmemory is based on Berry Linux(http://yui.mine.nu/linux/eberry.html )

http://fedora.redhat.com/http://www.sciencedirect.com/science?_ob=RedirectURL&_method=externObjLink&_locator=url&_cdi=12913&_issn=05315131&_originPage=article&_zone=art_page&_plusSign=%2B&_targetURL=http%253A%252F%252Fyui.mine.nu%252Flinux%252Feberry.htmlhttp://www.sciencedirect.com/science?_ob=RedirectURL&_method=externObjLink&_locator=url&_cdi=12913&_issn=05315131&_originPage=article&_zone=art_page&_plusSign=%2B&_targetURL=http%253A%252F%252Fyui.mine.nu%252Flinux%252Feberry.htmlhttp://fedora.redhat.com/

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Data Sharing Among Remote Users Intranet system pen-based Mobile wireless Linux PC (Sony C1 VAIO 80 GB)

with IEEE 802.11 g Internet system Mojilla FireFox Local system Personal Digital Assistants (PDA) with LAN connectivity IEEE

802.11b or Palm OS 5.0 PDA(SONY Clue UX-50) or pocket PC 2002(Toshibae830) or Linux PDA(Sharp Linux Zaurus SL-C760)

Laptop wireless Windows PC, a pen-based ultra-portable small WindowsPC (SONY VAIO type U) with weight 550 g, other conventional wired PCs,and several personal digital assistants (PDAs) with wireless local areanetwork (LAN) connectivity (IEEE 802.11b) including Palm OS PDA (SONYClue UX-50 with Palm OS version 5.0), PocketPC2002 (Toshiba e830), andLinux PDA (Sharp Linux Zaurus SL-C760).

Mobile DICOM server had both wired LAN (100B-T) and wireless LAN(IEEE 802.11 g) connectivity.

PDA clients and wireless laptop PCs were connected with a mobile Linuxserver using wireless LAN.

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DICOM Wiki: Knowledge Web MarkupLanguage: Database System for Radiologists

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Feature maps of different regions in MS

brain: Minimization of false lesion

Correction

False Lesion

Sharma et al (2005) Ad Seg Algorth Chapter 5

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How to Keep Security at Place?

Network security using basic authentication of web server, extended service set identifier (ESS-ID), and wired equivalent privacy (WEP) key,

media access control (MAC) address filtering Each registered users (radiologists) manage the

DICOM images and attributed information using

Wiki pages and PHP scripts. Wiki allowed users to freely create and edit web

pages in any web browsers.

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How Data on Website is Safe?

Wiki websites were secured using MessageDigest 5 encryption and basic authenticationof Apache web server.

Safe measures against website attacks, such asCross Site Scripting (XSS) and Cross-SiteRequest Forgeries (CSRF) attacks .

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User-friendly Communication

Web conferences using intranet DICOM Wikiwebsite

Add comments and discuss about educationalcases online.

Wiki contents and image manipulation pluginof DICOM Wiki

interactive and easy to use, both image- andtext-based dynamic communication in theweb conference.

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Education through Network Safety

Web-based textbook of emergencyultrasonography and lecture manuscripts

Store DICOM image data using the DICOMWiki server.

Wiki contents were easy and time-saving forRadiologists

Authenticated users own websites of teachingfiles for easy and dynamic access

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Anisotropy for Fiber Tracking:Precursor of Alzheimers disease ?

Sharma et al (2005) Ad SegAlgorth Chapter 5

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AD: Where are sites of poor glycolysis?

Poor Glucose metabolism in both Temporal sites due to amyloid plaques

Sharma (2002) Adv. Segmentation Chapter 7,187

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Conclusion DICOM Wiki web-based is content management system (CMS). Useful in: Internet website management is e asy for portal site about radiology and

other collaboration work through (http://www.Wikiroom.com/kashiwa/ ). Efficient management of heavy, lossless diagnostic medical image data,

medical education.

Web-based communication for group works for radiologists with highscalability and accessibility. Web-based tools, templates, and database to create and manage the web

pages on a site. Enables a variety of (centralised) technical and (de-centralised) non-

technical staff to create, edit, manage, and finally publish (in a number of

formats) a variety of content (such as text, graphics, video, documents,etc.)

http://www.sciencedirect.com/science?_ob=RedirectURL&_method=externObjLink&_locator=url&_cdi=12913&_issn=05315131&_originPage=article&_zone=art_page&_plusSign=%2B&_targetURL=http%253A%252F%252Fwww.Wikiroom.com%252Fkashiwa%252Fhttp://www.sciencedirect.com/science?_ob=RedirectURL&_method=externObjLink&_locator=url&_cdi=12913&_issn=05315131&_originPage=article&_zone=art_page&_plusSign=%2B&_targetURL=http%253A%252F%252Fwww.Wikiroom.com%252Fkashiwa%252Fhttp://www.sciencedirect.com/science?_ob=RedirectURL&_method=externObjLink&_locator=url&_cdi=12913&_issn=05315131&_originPage=article&_zone=art_page&_plusSign=%2B&_targetURL=http%253A%252F%252Fwww.Wikiroom.com%252Fkashiwa%252F

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Resources http://www.adsc.com/ris.asp http://www.dicomsolutions.com/clinical-

specialties/radiology/radiology-pacs http://www.mckesson.com/ http://precedings.nature.com/documents/3485/version/1 A centralised set of rules, process, and networkflow to ensure

coherent, validated electronic contents. InternationalCongress Series Volume 1281 , May 2005, Pages 980-985

CARS 2005: Computer Assisted Radiology and Surgery

http://www.adsc.com/ris.asphttp://www.dicomsolutions.com/clinical-specialties/radiology/radiology-pacshttp://www.dicomsolutions.com/clinical-specialties/radiology/radiology-pacshttp://www.mckesson.com/http://precedings.nature.com/documents/3485/version/1http://www.sciencedirect.com/science/journal/05315131http://www.sciencedirect.com/science/journal/05315131http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=http://www.sciencedirect.com/science/journal/05315131http://www.sciencedirect.com/science/journal/05315131http://precedings.nature.com/documents/3485/version/1http://www.mckesson.com/http://www.dicomsolutions.com/clinical-specialties/radiology/radiology-pacshttp://www.dicomsolutions.com/clinical-specialties/radiology/radiology-pacshttp://www.dicomsolutions.com/clinical-specialties/radiology/radiology-pacshttp://www.dicomsolutions.com/clinical-specialties/radiology/radiology-pacshttp://www.dicomsolutions.com/clinical-specialties/radiology/radiology-pacshttp://www.adsc.com/ris.asp