An improved, clinically oriented archive concept for PACS: a substitute for the conventional film archive

Nissen-Meyer, S.; Fink, U.; Pleier, M.

doi:10.1007/bf00169601

Cited by 10 publications

(4 citation statements)

References 22 publications

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“…We therefore suggest a multilevel hierarchy of high and low speed online storage media like those already in existence in the broadcasting industry, oil industry, and in military and space research (15) Parallel to the magnetic media, nonerasable discs or the recently announced Tb optical tapes may be used as sequential medium for data backup. All these media can be kept in a single robotic system in mixed operation controlled by only one supercomputer or high performance workstation (Silicon Graphics, HP, IBM), or 2 for redundancy purposes.…”

Section: Methodsmentioning

confidence: 99%

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The Full-Scale Pacs Archive

Nissen-Meyer¹,

Fink²,

Pleier³

et al. 1996

Acta Radiol

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Section: Methodsmentioning

confidence: 99%

“…We do not yet see the archive problem being solved by the prevailing concepts offered by PACS vendors today (15). We estimate the amount of data that must be handled by such a PACS archive and discuss present day PACS archive technologies and alternative ones.…”

mentioning

confidence: 97%

The Full-Scale Pacs Archive

Nissen-Meyer¹,

Fink²,

Pleier³

et al. 1996

Acta Radiol

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“…The purely digital "filmless" hospital can be approached this way. Only then can a maximal return on the PACS investments be achieved [11,12].…”

Section: Introductionmentioning

confidence: 99%

Functional Requirements for a HIS-RIS-PACS-Interface Design, Including Integration of “Old” Modalities

Adelhard

Nissen-Meyer²,

Pistitsch³

et al. 1999

Methods Inf Med

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Abstract:Radiology, Information Systems (RIS) and Picture Archiving Systems (PACS), have the potential for immense rationalization of operations in radiology and hence for the improvement of health care, as well as the return of investments. These systems must, however, be carefully designed such that they support routine work rather than being an additional burden to radiology staff. Analyses show that comprehensive communication of patient demographic and clinical data between RIS, PACS and Hospital Information Systems (HIS) are necessary prerequisites to achieve cost effectiveness. Based on analyses of radiology operations in a large university primary care hospital, functional requirements and data structures for designing HIS/RIS/PACS interfaces are presented. These concern communication of past examinations, associated written reports and images, appointment scheduling, requests of new examinations, digitizing old analog X-ray films, access from RIS/PACS to other clinical data, and transfer of new radiology reports and relevant images. Consistency of all redundant data stored in the three systems is essential. A pragmatic, safe and inexpensive method of electronically integrating “old” modalities not fully ”PACS capable“ in the HIS/RIS/PACS world is presented.

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“…1 Estimates of the total amount of data generated in an all digital radiology facility of a typical 500 bed hospital vary between 1 and 5 Tbytes per year. 2,3 Image compression facilitates the development of these facilities as economical alternatives to conventional film based systems by reducing the space required to store images and the bandwidth required to transmit them.…”

mentioning

confidence: 99%

Medical image compression based on a morphological representation of wavelet coefficients

Phelan

Ennis

1999

Med. Phys.

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Image compression is fundamental to the efficient and cost-effective use of digital medical imaging technology and applications. Wavelet transform techniques currently provide the most promising approach to high-quality image compression which is essential for diagnostic medical applications. A novel approach to image compression based on the wavelet decomposition has been developed which utilizes the shape or morphology of wavelet transform coefficients in the wavelet domain to isolate and retain significant coefficients corresponding to image structure and features. The remaining coefficients are further compressed using a combination of run-length and Huffman coding. The technique has been implemented and applied to full 16 bit medical image data for a range of compression ratios. Objective peak signal-to-noise ratio performance of the compression technique was analyzed. Results indicate that good reconstructed image quality can be achieved at compression ratios of up to 15:1 for the image types studied. This technique represents an effective approach to the compression of diagnostic medical images and is worthy of further, more thorough, evaluation of diagnostic quality and accuracy in a clinical setting.

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An improved, clinically oriented archive concept for PACS: a substitute for the conventional film archive

Cited by 10 publications

References 22 publications

The Full-Scale Pacs Archive

The Full-Scale Pacs Archive

Functional Requirements for a HIS-RIS-PACS-Interface Design, Including Integration of “Old” Modalities

Medical image compression based on a morphological representation of wavelet coefficients

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