Search Results - "Alm Carlsson, G."

AUTOMATIC SEGMENTATION OF PELVIS FOR BRACHYTHERAPY OF PROSTATE by Kardell, M, Magnusson, M, Sandborg, M, Alm Carlsson, G, Jeuthe, J, Malusek, A

“…Advanced model-based iterative reconstruction algorithms in quantitative computed tomography (CT) perform automatic segmentation of tissues to estimate…”
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PARALLELISATION OF THE MODEL-BASED ITERATIVE RECONSTRUCTION ALGORITHM DIRA by Örtenberg, A, Magnusson, M, Sandborg, M, Alm Carlsson, G, Malusek, A

“…New paradigms for parallel programming have been devised to simplify software development on multi-core processors and many-core graphical processing units…”
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Breast dosimetry using high-resolution voxel phantoms by Dance, D. R., Hunt, R. A., Bakic, P. R., Maidment, A. D. A., Sandborg, M., Ullman, G., Alm Carlsson, G.

“…A computer model of X-ray mammography has been developed, which uses quasi-realistic high-resolution voxel phantoms to simulate the breast. The phantoms have…”
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Nanodosimetry in a clinical neutron therapy beam using the variance-covariance method and Monte Carlo simulations by Lillhök, J E, Grindborg, J-E, Lindborg, L, Gudowska, I, Carlsson, G Alm, Söderberg, J, Kopeć, M, Medin, J

“…Nanodosimetric single-event distributions or their mean values may contribute to a better understanding of how radiation induced biological damages are…”
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The potential of dual-energy computed tomography for quantitative decomposition of soft tissues to water, protein and lipid in brachytherapy by Malusek, A, Karlsson, M, Magnusson, M, Carlsson, G Alm

“…Dosimetric accuracy of radiation treatment planning in brachytherapy depends on knowledge of tissue composition. It has been speculated that soft tissues can…”
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Influence of the characteristic curve on the clinical image quality of lumbar spine and chest radiographs by TINGBERG, A, HERRMANN, C, KHEDDACHE, S, CARLSSON, G. Alm, DANCE, D. R, TYLEN, U, ZANKL, M, LANHEDE, B, ALMEN, A, SANDBORG, M, MCVEY, G, MATTSSON, S, PANZER, W, BESJAKOV, J, MANSSON, L. G

“…The "European Guidelines on Quality Criteria for Diagnostic Radiographic Images" do not address the choice of the film characteristic (H&D) curve, which is an…”
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In-situ calibration of clinical built-in KAP meters with traceability to a primary standard using a reference KAP meter by Malusek, A, Helmrot, E, Sandborg, M, Grindborg, J-E, Carlsson, G Alm

“…The air kerma-area product (KAP) is used for settings of diagnostic reference levels. The International Atomic Energy Agency (IAEA) recommends that doses in…”
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ACCURATE KAP METER CALIBRATION AS A PREREQUISITE FOR OPTIMISATION IN PROJECTION RADIOGRAPHY by Malusek, A, Sandborg, M, Carlsson, G Alm

“…Modern X-ray units register the air kerma-area product, PKA, with a built-in KAP meter. Some KAP meters show an energy-dependent bias comparable with the…”
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OC-0084: How to specify dose to water using model based dose calculation in brachytherapy treatment planning? by Carlsson Tedgren, A, Alm Carlsson, G

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Calculation of the properties of digital mammograms using a computer simulation by Hunt, R. A., Dance, D. R., Bakic, P. R., Maidment, A. D. A., Sandborg, M., Ullman, G., Alm Carlsson, G.

“…A Monte Carlo computer model of mammography has been developed to study and optimise the performance of digital mammographic systems. The program uses…”
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Nanodosimetric measurements and calculations in a neutron therapy beam by Grindborg, J.-E., Lillhök, J. E., Lindborg, L., Gudowska, I., Söderberg, J., Carlsson, G. Alm, Nikjoo, H.

“…A comparison of calculated and measured values of the dose mean lineal energy (ȳD) for the former neutron therapy beam at Louvain-la-Neuve is reported. The…”
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Sensitivity of coefficients for converting entrance surface dose and kerma-area product to effective dose and energy imparted to the patient by Wise, K N, Sandborg, M, Persliden, J, Carlsson, G A

“…We investigate the sensitivity of the conversions from entrance surface dose (ESD) or kerma-area product (KAP) to effective dose (E) or to energy imparted to…”
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113 poster: Influence of Phantom Material and Dimensions on Experimental 192IR Dosimetry by Tedgren, Carlsson, Alm Carlsson, G

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PO-346 MEASUREMENTS AROUND AN ELECTRONIC BRACHYTHERAPY SOURCE USING LITHIUM FORMATE EPR DOSIMETERS AND GAFCHROMIC FILM by Adolfsson, E, White, S, Landry, G, Alm Carlsson, G, Gustafsson, H, Lund, E, Reniers, B, Verhaegen, F, Carlsson Tedgren, A

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Monte Carlo simulation of a mammographic test phantom by Hunt, R. A., Dance, D. R., Pachoud, M., Alm Carlsson, G., Sandborg, M., Ullman, G., Verdun, F. R.

“…A test phantom, including a wide range of mammographic tissue equivalent materials and test details, was imaged on a digital mammographic system. In order to…”
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RADIUS—closing the circle on the assessment of imaging performance by Moores, B. M., Mattsson, S., Månsson, L. G., Panzer, W., Regulla, D., Dance, D., Alm Carlsson, G., Verdun, F. R., Buhr, E., Hoeschen, C.

“…The RADIUS (Radiological Imaging Unification Strategy) project addresses the assessment of image quality in terms of both physical and clinically relevant…”
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Monte Carlo study of the dependence of the KAP-meter calibration coefficient on beam aperture, x-ray tube voltage and reference plane by Malusek, A, Larsson, J P, Carlsson, G Alm

“…The Monte Carlo method was used to study the dependence of the calibration coefficient on the tube voltage, beam aperture and reference plane in simplified…”
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Energy imparted to the patient in diagnostic radiology: calculation of conversion factors for determining the energy imparted from measurements of the air collision kerma integrated over beam area by Alm Carlsson, G, Carlsson, C A, Persliden, J

“…The energy imparted to the patient in diagnostic radiology, related to radiation risk in examinations of the trunk and head, can be deduced from a measurement…”
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Demonstration of correlations between clinical and physical image quality measures in chest and lumbar spine screen-film radiography by Sandborg, M, Tingberg, A, Dance, D R, Lanhede, B, Almén, A, McVey, G, Sund, P, Kheddache, S, Besjakov, J, Mattsson, S, Månsson, L G, Alm Carlsson, G

“…The ability to predict clinical image quality from physical measures is useful for optimization in diagnostic radiology. In this work, clinical and physical…”
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A study and optimization of lumbar spine X-ray imaging systems by MCVEY, G, SANDBORG, M, DANCE, D. R, CARLSSON, G. Alm

“…A Monte Carlo program has been developed that incorporates a voxel phantom of an adult patient in a model of the complete X-ray imaging system, including the…”
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