Apple Mac OS X Server System Imaging and Software Update Administration For Version 10.4 or Later Manual de usuario descargar pdf (Pagina 16)

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Integrating Mac Systems into

a Medical IT Infrastructure

Conclusion—Certied OsiriX software is available from third-party institutions.

OsiriX versions that have earned FDA clearance or that have a CE certicate are available

from third-party institutions. Acquiring OsiriX from one of these third parties, such as aycan,

allows facilities to use stable, certied, tested, and supported solutions based on the open

source software OsiriX.

Integration of OsiriX with PACS

OsiriX enables seamless integration into a PACS architecture because the application’s

built-in networking technologies are DICOM compliant. At our facility, OsiriX handles

DICOM images from 15 dierent modalities, and it networks with several PACS compo-

nents without any reported problems.

Upon integration with OsiriX, other workstations can query the OsiriX workstation

and pull images from its database. It also supports simultaneous queries from multiple

systems, and this enables much more ecient image distribution by department serv-

ers. Additionally, the OsiriX image database can be shared (using password protection)

with other OsiriX stations over the Apple Bonjour protocol, a powerful “zero-congura-

tion” communication protocol.

Bonjour networking to share images is notably faster

than DICOM transfers.

Access to Hospital and Radiology Information Systems

(HIS and RIS)

Today’s radiology departments rely on a Radiology Information System (RIS) to

manage patient and examination information, scheduling, and accounting. Although

an increasing number of RIS implementations are available for the Apple Mac OS X

platform, most RIS clients are only accessible on Microsoft Windows systems.

Our radiology team members access the GE Medora RIS version 3.9.12

in two ways:

rst, via a dedicated database front end for examination planning and documentation;

and second, through a set of Microsoft Word plug-ins for report generation and online

speech recognition using Philips SpeechMagic 5.1 SR1. Both are Windows-only applica-

tions. Because the RIS is not integrated with the Active Directory, users must log in

to the database separately. IT administration views this as an additional security

enhancement.

For our Hospital Information System (HIS), we use SAP R3 Release 4.7.2,

which

provides general patient information and interfaces to our ordering and accounting

processes. The HIS, RIS, and PACS systems interconnect via HL7 protocols, enabling

such capabilities as automatic patient data transfer. This means that radiology worksta-

tions can still access the HIS functionalities without the HIS client application installed

on a radiology viewing and reporting system.

Creating a Virtual PC

To access the RIS from the Mac platform running OsiriX, we leveraged virtualization

software that emulates standard PC hardware so users can run Windows and

Windows-compliant applications on Mac computers. The “guest operating system”

behaves as it would on a PC, and the advanced CPUs driving today’s Mac Pro systems

derive very acceptable performance from this “virtual machine.”

Several Windows virtualization options are available for Apple Mac OS X. We chose

Parallels Desktop for Mac to run a virtual Microsoft Windows XP system and provide

OsiriX workstation users with access to the standard RIS clients of the department.

(See Figure 10.) We congured the virtual machine to start up automatically at the

user’s login. Optionally, under a so-called “coherence” mode, virtualized applications

Select Windows Virtualization Applications

for Mac OS X

• Parallels Desktop for Mac. Allows users to

run Windows, Linux, and more side by side

with Mac OS X on any Intel-powered Mac,

without rebooting. (www.parallels.com/en/

products/desktop/)

• VMWare virtualization products. Allow

enterprise-level virtualization, security, system

management, and more. (www.vmware.com/

products/enterprise_desktop.html).

Figure 10: To access the hospital’s RIS, whose

client software works only on Windows, we

used Parallels Desktop for Mac to create a

virtual Windows machine.

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