COST B2: the quality assurance of nuclear medicine software

Britton, K. E.; Vauramo, Erkki

doi:10.1007/bf00700030

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…There was a COST B2 [19] (Cooperation in Science and Technology, European Community Programme) symposium led by Bergmann. Interfile is the medium for the universal exchange of patient study images developed and promoted by Todd-Pokropek and Cradduck [20].…”

Section: Physicsmentioning

confidence: 99%

Highlights of the annual meeting of the European Association of Nuclear Medicine, Lausanne 1993

Britton

1994

Eur J Nucl Med

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Section: Physicsmentioning

confidence: 99%

Highlights of the annual meeting of the European Association of Nuclear Medicine, Lausanne 1993

Britton

1994

Eur J Nucl Med

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High-performance computing and networking as tools for accurate emission computed tomography reconstruction

et al. 1997

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It is well known that the quantitative potential of emission computed tomography (ECT) relies on the ability to compensate for resolution, attenuation and scatter effects. Reconstruction algorithms which are able to take these effects into account are highly demanding in terms of computing resources. The reported work aimed to investigate the use of a parallel high-performance computing platform for ECT reconstruction taking into account an accurate model of the acquisition of single-photon emission tomographic (SPET) data. An iterative algorithm with an accurate model of the variable system response was ported on the MIMD (Multiple Instruction Multiple Data) parallel architecture of a 64-node Cray T3D massively parallel computer. The system was organized to make it easily accessible even from low-cost PC-based workstations through standard TCP/IP networking. A complete brain study of 30 (64x64) slices could be reconstructed from a set of 90 (64x64) projections with ten iterations of the conjugate gradients algorithm in 9 s, corresponding to an actual speed-up factor of 135. This work demonstrated the possibility of exploiting remote high-performance computing and networking resources from hospital sites by means of low-cost workstations using standard communication protocols without particular problems for routine use. The achievable speed-up factors allow the assessment of the clinical benefit of advanced reconstruction techniques which require a heavy computational burden for the compensation effects such as variable spatial resolution, scatter and attenuation. The possibility of using the same software on the same hardware platform with data acquired in different laboratories with various kinds of SPET instrumentation is appealing for software quality control and for the evaluation of the clinical impact of the reconstruction methods.

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