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Sökning: onr:"swepub:oai:lup.lub.lu.se:e609903b-3c25-498a-8333-7d4787c62afd" > On the use of solid...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00006363naa a2200709 4500
001oai:lup.lub.lu.se:e609903b-3c25-498a-8333-7d4787c62afd
003SwePub
008231220s2023 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/e609903b-3c25-498a-8333-7d4787c62afd2 URI
0247 a https://doi.org/10.1186/s40658-023-00582-32 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Tran-Gia, Johannesu University Hospital of Wϋrzburg4 aut
2451 0a On the use of solid 133Ba sources as surrogate for liquid 131I in SPECT/CT calibration : a European multi-centre evaluation
264 1c 2023
520 a Introduction: Commissioning, calibration, and quality control procedures for nuclear medicine imaging systems are typically performed using hollow containers filled with radionuclide solutions. This leads to multiple sources of uncertainty, many of which can be overcome by using traceable, sealed, long-lived surrogate sources containing a radionuclide of comparable energies and emission probabilities. This study presents the results of a quantitative SPECT/CT imaging comparison exercise performed within the MRTDosimetry consortium to assess the feasibility of using 133Ba as a surrogate for 131I imaging. Materials and methods: Two sets of four traceable 133Ba sources were produced at two National Metrology Institutes and encapsulated in 3D-printed cylinders (volume range 1.68–107.4 mL). Corresponding hollow cylinders to be filled with liquid 131I and a mounting baseplate for repeatable positioning within a Jaszczak phantom were also produced. A quantitative SPECT/CT imaging comparison exercise was conducted between seven members of the consortium (eight SPECT/CT systems from two major vendors) based on a standardised protocol. Each site had to perform three measurements with the two sets of 133Ba sources and liquid 131I. Results: As anticipated, the 131I pseudo-image calibration factors (cps/MBq) were higher than those for 133Ba for all reconstructions and systems. A site-specific cross-calibration reduced the performance differences between both radionuclides with respect to a cross-calibration based on the ratio of emission probabilities from a median of 12–1.5%. The site-specific cross-calibration method also showed agreement between 133Ba and 131I for all cylinder volumes, which highlights the potential use of 133Ba sources to calculate recovery coefficients for partial volume correction. Conclusion: This comparison exercise demonstrated that traceable solid 133Ba sources can be used as surrogate for liquid 131I imaging. The use of solid surrogate sources could solve the radiation protection problem inherent in the preparation of phantoms with 131I liquid activity solutions as well as reduce the measurement uncertainties in the activity. This is particularly relevant for stability measurements, which have to be carried out at regular intervals.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Radiologi och bildbehandling0 (SwePub)302082 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Radiology, Nuclear Medicine and Medical Imaging0 (SwePub)302082 hsv//eng
653 a I
653 a Ba
653 a Barium-133
653 a Calibration
653 a Comparison exercise
653 a Multi-centre
653 a Quantitative SPECT/CT
653 a Radioiodine
653 a Solid surrogate source
7001 a Denis-Bacelar, Ana M.u National Physical Laboratory, UK4 aut
7001 a Ferreira, Kelley M.u National Physical Laboratory, UK4 aut
7001 a Robinson, Andrew P.u National Physical Laboratory, UK4 aut
7001 a Bobin, Christopheu University of Paris-Saclay4 aut
7001 a Bonney, Lara M.u Churchill Hospital4 aut
7001 a Calvert, Nicholasu Christie NHS Foundation Trust4 aut
7001 a Collins, Sean M.u National Physical Laboratory, UK,University of Surrey4 aut
7001 a Fenwick, Andrew J.u National Physical Laboratory, UK4 aut
7001 a Finocchiaro, Domenicou University Hospital of Modena4 aut
7001 a Fioroni, Federica4 aut
7001 a Giannopoulou, Katerina4 aut
7001 a Grassi, Elisau Azienda USL-IRCCS di Reggio Emilia4 aut0 (Swepub:lu)el1634gr
7001 a Heetun, Wardau National Physical Laboratory, UK4 aut
7001 a Jewitt, Stephanie J.u Churchill Hospital4 aut
7001 a Kotzasarlidou, Maria4 aut
7001 a Ljungberg, Michaelu Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nuclear Medicine Physics,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups4 aut0 (Swepub:lu)rafy-mlj
7001 a Lourenço, Valérieu University of Paris-Saclay4 aut
7001 a McGowan, Daniel R.u Churchill Hospital,University of Oxford4 aut
7001 a Mewburn-Crook, Jamieu National Physical Laboratory, UK4 aut
7001 a Sabot, Benoitu University of Paris-Saclay4 aut
7001 a Scuffham, Jamesu Royal Surrey County Hospital4 aut
7001 a Sjögreen Gleisner, Katarinau Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nuclear Medicine Physics,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups4 aut0 (Swepub:lu)rafy-ksj
7001 a Solc, Jaroslav4 aut
7001 a Thiam, Cheicku University of Paris-Saclay4 aut
7001 a Tipping, Jillu Churchill Hospital4 aut
7001 a Wevrett, Jillu Royal Surrey County Hospital4 aut
7001 a Lassmann, Michaelu University Hospital of Wϋrzburg4 aut
7102 a University Hospital of Wϋrzburgb National Physical Laboratory, UK4 org
7730 t EJNMMI Physicsg 10:1q 10:1x 2197-7364
8564 u http://dx.doi.org/10.1186/s40658-023-00582-3x freey FULLTEXT
8564 8u https://lup.lub.lu.se/record/e609903b-3c25-498a-8333-7d4787c62afd
8564 8u https://doi.org/10.1186/s40658-023-00582-3

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