In-house access to PACS images and related data through World Wide Web

Mascarini, C.; Ratib, Osman; Trayser, Gerhard; Ligier, Yves; Appel, Ron D.

doi:10.1016/0720-048x(96)00777-2

Cited by 16 publications

(7 citation statements)

References 2 publications

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“…The first publications on Web-based image distribution were dedicated to presenting solutions which had been developed in-house by academic institutions [15,16,17,18,19]. Later systems provided by the industry were also evaluated [4,5].…”

Section: Discussionmentioning

confidence: 99%

Performance of Web-based image distribution: server-oriented measurements

et al. 2003

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The aim of this study was to assess the performance of Web-based image distribution when multiple personal computers (PCs) are downloading images simultaneously for different server hardware configurations. Using specially developed software, the time-to-display (TTD) of different image types was measured with up to 16 concurrent PCs for various combinations of processor, random access memory (RAM), network connection and image compression. The TTD increased linearly with the number of concurrent PCs but remained under 5 s in most of the cases, even with 16 concurrent PCs. Only with a 10-Mbit/s network connection or with lossy compression were TTDs above 5 s obtained. Two processors instead of one led to a slight and constant improvement of the TTD. Reducing the amount of RAM increased the TTD mainly for computed radiography (CR) images. There was no difference between a 200- and 100-Mbit/s network, but 10 Mbit/s proved significantly worse. When increasing the number of clients lossless compression performed substantially better than lossy. A standard off-the-shelf server provides an appropriate download performance even with 16 concurrent clients. Processor speed and RAM amount are of minor importance, but it is highly recommended to use a 100-Mbit/s network connection and to avoid the application of on-demand lossy compression in a local area network.

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Section: Discussionmentioning

confidence: 99%

Performance of Web-based image distribution: server-oriented measurements

et al. 2003

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“…In a filmless PACS environment, there is the need for a large number of image display stations throughout the hospital. For this purpose, inexpensive software solutions based on standard PC technology and World-Wide-Web (WWW) software are now available [58,59,61]. These work as plug-ins or Java applets with standard browser software and may communicate over an Intranet with a central image server.…”

Section: Direct Costs Related To Pacs Acquisition and Maintenancementioning

confidence: 99%

PACS: the silent revolution

Bick

Lenzen

1999

European Radiology

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More than 15 years ago the idea of a Picture Archiving and Communication System (PACS) and a filmless hospital was created. In a PACS environment images are acquired, read, communicated and stored digitally. After many years of unsuccessful attempts and prototype installations, the necessary hardware components for a successful PACS installation are now readily available. However, software development is still lagging behind. Only very recently, software developers have realized that it is not sufficient for PACS software to store, communicate and display images, but that PACS software should effectively support the radiologist in the task of interpreting and communicating imaging findings through context-dependent default display arrangements, work-flow management, radiological and hospital information systems integration, and computer-assisted diagnosis. This review examines hard- and software requirements for efficient PACS operation, analyses costs and benefits, and discusses future developments.

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“…One technical solution always considered in this context is the web-based approach. Since the mid 1990s various authors have explored the possibilities of this concept, often with self-developed systems [4,5,6,7,8,9]. The technical principles [10,11] and the general advantages and disadvantages of this approach are well documented [2,8,12,13].…”

Section: Introductionmentioning

confidence: 98%

Performance of Web-based image distribution: client-oriented measurements

et al. 2003

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The aim of this study was to define a clinically suitable personal computer (PC) configuration for Web-based image distribution and to assess the influence of different hard- and software configurations on the performance. Through specially developed software the time-to-display (TTD) for various PC configurations was measured. Different processor speeds, random access memory (RAM), screen resolutions, graphic adapters, network speeds, operating systems and examination types (computed radiography, CT, MRI) were evaluated, providing more than half a million measurements. Processor speed was the most relevant factor for the TTD; doubling the speed halved the TTD. Under processor speeds of 350 MHz, TTD mostly remained above 5 s for 1 CR or 16 CT images. Here Windows NT with lossy compression were superior. Processor speeds of 350 MHz and over delivered TTD <5 s. In this case Windows 2000 and lossless compression were preferable. Screen resolutions above 1280 x 1024 pixels increased the TTD mainly for CR images. The RAM amount, network speed and graphic adapter did not have a significant influence. The minimum threshold for clinical routine is any standard off-the-shelf PC better than Pentium II 350 MHz, 128 MB RAM; hence, high-end PC hardware is not required.

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In-house access to PACS images and related data through World Wide Web

Cited by 16 publications

References 2 publications

Performance of Web-based image distribution: server-oriented measurements

Performance of Web-based image distribution: server-oriented measurements

PACS: the silent revolution

Performance of Web-based image distribution: client-oriented measurements

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