1
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Zaleski R, Kotowicz O, Górska A, Zaleski K, Zgardzińska B. Investigation of the Ability to Detect Electrolyte Disorder Using PET with Positron Annihilation Lifetime Spectroscopy. J Phys Chem B 2023; 127:9887-9890. [PMID: 37946359 PMCID: PMC10683008 DOI: 10.1021/acs.jpcb.3c04208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/18/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
Various concentrations (8-300 mmol/L) of NaCl, KCl, and NaCl + KCl aqueous solutions were investigated using positron annihilation lifetime spectroscopy (PALS). A strong dependence of the o-Ps intensity as a function of the solution concentration was demonstrated. On this basis, the mean positron lifetime and the sum of counts in a selected time interval were proposed as reliable parameters for detecting disturbances in the ion balance of living organisms. The use of these parameters for differentiating healthy and cancerous tissues allows for the development of auxiliary diagnostic methods in a new generation of PET scanners equipped with a PALS detection module.
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Affiliation(s)
- Radosław Zaleski
- Maria
Curie-Sklodowska University, Institute of Physics, Department of Material Physics, Pl. M. Curie-Sklodowskiej 1, 20-031 Lublin, Poland
| | - Olga Kotowicz
- Maria
Curie-Sklodowska University, Institute of Physics, Department of Material Physics, Pl. M. Curie-Sklodowskiej 1, 20-031 Lublin, Poland
| | - Agnieszka Górska
- Medical
University of Lublin, Faculty of Medicine,
Clinic of Toxicology, Al. Kraśnicka 100, 20-718 Lublin, Poland
| | - Kamil Zaleski
- Medical
University of Lublin, Faculty of Medicine,
Clinic of Toxicology, Al. Kraśnicka 100, 20-718 Lublin, Poland
| | - Bożena Zgardzińska
- Maria
Curie-Sklodowska University, Institute of Physics, Department of Material Physics, Pl. M. Curie-Sklodowskiej 1, 20-031 Lublin, Poland
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2
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Moskal P, Kubicz E, Grudzień G, Czerwiński E, Dulski K, Leszczyński B, Niedźwiecki S, Stępień EŁ. Developing a novel positronium biomarker for cardiac myxoma imaging. EJNMMI Phys 2023; 10:22. [PMID: 36959477 PMCID: PMC10036702 DOI: 10.1186/s40658-023-00543-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 03/10/2023] [Indexed: 03/25/2023] Open
Abstract
PURPOSE Cardiac myxoma (CM), the most common cardiac tumor in adults, accounts for 50-75% of benign cardiac tumors. The diagnosis of CM is often elusive, especially in young stroke survivors and transthoracic echocardiography (TTE) is the initial technique for the differential diagnostics of CM. Less invasive cardiac computed tomography (CT) and magnetic resonance imaging (MRI) are not available for the majority of cardiac patients. Here, a robust imaging approach, ortho-Positronium (o-Ps) imaging, is presented to determine cardiac myxoma extracted from patients undergoing urgent cardiac surgery due to unexpected atrial masses. We aimed to assess if the o-Ps atom, produced copiously in intramolecular voids during the PET imaging, serves as a biomarker for CM diagnosing. METHODS Six perioperative CM and normal (adipose) tissue samples from patients, with primary diagnosis confirmed by the histopathology examination, were examined using positron annihilation lifetime spectroscopy (PALS) and micro-CT. Additionally, cell cultures and confocal microscopy techniques were used to picture cell morphology and origin. RESULTS We observed significant shortening in the mean o-Ps lifetime in tumor with compare to normal tissues: an average value of 1.92(02) ns and 2.72(05) ns for CM and the adipose tissue, respectively. Microscopic differences between tumor samples, confirmed in histopathology examination and micro-CT, did not influenced the major positronium imaging results. CONCLUSIONS Our findings, combined with o-Ps lifetime analysis, revealed the novel emerging positronium imaging marker (o-PS) for cardiovascular imaging. This method opens the new perspective to facilitate the quantitative in vivo assessment of intracardiac masses on a molecular (nanoscale) level.
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Affiliation(s)
- Paweł Moskal
- Department of Experimental Particle Physics and Applications, Marian Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland.
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland.
- Center for Theranostics, Jagiellonian University, Kraków, Poland.
| | - Ewelina Kubicz
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland.
- Center for Theranostics, Jagiellonian University, Kraków, Poland.
- Department of Medical Physics, Marian Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland.
| | - Grzegorz Grudzień
- Department of Cardiovascular Surgery and Transplantology, John Paul II Hospital, Kraków, Poland
- Department of Cardiovascular Surgery and Transplantology, Jagiellonian University Medical College, Kraków, Poland
| | - Eryk Czerwiński
- Department of Experimental Particle Physics and Applications, Marian Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Kamil Dulski
- Department of Experimental Particle Physics and Applications, Marian Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Bartosz Leszczyński
- Department of Medical Physics, Marian Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Szymon Niedźwiecki
- Department of Experimental Particle Physics and Applications, Marian Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Ewa Ł Stępień
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland.
- Center for Theranostics, Jagiellonian University, Kraków, Poland.
- Department of Medical Physics, Marian Smoluchowski Institute of Physics, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland.
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3
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Moskal P, Dulski K, Chug N, Curceanu C, Czerwiński E, Dadgar M, Gajewski J, Gajos A, Grudzień G, Hiesmayr BC, Kacprzak K, Kapłon Ł, Karimi H, Klimaszewski K, Korcyl G, Kowalski P, Kozik T, Krawczyk N, Krzemień W, Kubicz E, Małczak P, Niedźwiecki S, Pawlik-Niedźwiecka M, Pędziwiatr M, Raczyński L, Raj J, Ruciński A, Sharma S, Shopa RY, Silarski M, Skurzok M, Stępień EŁ, Szczepanek M, Tayefi F, Wiślicki W. Positronium imaging with the novel multiphoton PET scanner. SCIENCE ADVANCES 2021; 7:eabh4394. [PMID: 34644101 DOI: 10.1126/sciadv.abh4394] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In vivo assessment of cancer and precise location of altered tissues at initial stages of molecular disorders are important diagnostic challenges. Positronium is copiously formed in the free molecular spaces in the patient’s body during positron emission tomography (PET). The positronium properties vary according to the size of inter- and intramolecular voids and the concentration of molecules in them such as, e.g., molecular oxygen, O2; therefore, positronium imaging may provide information about disease progression during the initial stages of molecular alterations. Current PET systems do not allow acquisition of positronium images. This study presents a new method that enables positronium imaging by simultaneous registration of annihilation photons and deexcitation photons from pharmaceuticals labeled with radionuclides. The first positronium imaging of a phantom built from cardiac myxoma and adipose tissue is demonstrated. It is anticipated that positronium imaging will substantially enhance the specificity of PET diagnostics.
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Affiliation(s)
- Paweł Moskal
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Kamil Dulski
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Neha Chug
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | | | - Eryk Czerwiński
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Meysam Dadgar
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Jan Gajewski
- Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
| | - Aleksander Gajos
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Grzegorz Grudzień
- Department of Cardiovascular Surgery and Transplantology, John Paul II Hospital, Kraków, Poland
| | | | - Krzysztof Kacprzak
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Łukasz Kapłon
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Hanieh Karimi
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Konrad Klimaszewski
- Department of Complex Systems, National Centre for Nuclear Research, Otwock-Świerk, Poland
| | - Grzegorz Korcyl
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Paweł Kowalski
- Department of Complex Systems, National Centre for Nuclear Research, Otwock-Świerk, Poland
| | - Tomasz Kozik
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Nikodem Krawczyk
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Wojciech Krzemień
- High Energy Physics Division, National Centre for Nuclear Research, Otwock-Świerk, Poland
| | - Ewelina Kubicz
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Piotr Małczak
- 2nd Department of General Surgery, Jagiellonian University Medical College, Kraków, Poland
| | - Szymon Niedźwiecki
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Monika Pawlik-Niedźwiecka
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Michał Pędziwiatr
- 2nd Department of General Surgery, Jagiellonian University Medical College, Kraków, Poland
| | - Lech Raczyński
- Department of Complex Systems, National Centre for Nuclear Research, Otwock-Świerk, Poland
| | - Juhi Raj
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Antoni Ruciński
- Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
| | - Sushil Sharma
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Roman Y Shopa
- Department of Complex Systems, National Centre for Nuclear Research, Otwock-Świerk, Poland
| | - Michał Silarski
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Magdalena Skurzok
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Ewa Ł Stępień
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Monika Szczepanek
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Faranak Tayefi
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
- Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - Wojciech Wiślicki
- Department of Complex Systems, National Centre for Nuclear Research, Otwock-Świerk, Poland
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4
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Moskal P, Gajos A, Mohammed M, Chhokar J, Chug N, Curceanu C, Czerwiński E, Dadgar M, Dulski K, Gorgol M, Goworek J, Hiesmayr BC, Jasińska B, Kacprzak K, Kapłon Ł, Karimi H, Kisielewska D, Klimaszewski K, Korcyl G, Kowalski P, Krawczyk N, Krzemień W, Kozik T, Kubicz E, Niedźwiecki S, Parzych S, Pawlik-Niedźwiecka M, Raczyński L, Raj J, Sharma S, Choudhary S, Shopa RY, Sienkiewicz A, Silarski M, Skurzok M, Stępień EŁ, Tayefi F, Wiślicki W. Testing CPT symmetry in ortho-positronium decays with positronium annihilation tomography. Nat Commun 2021; 12:5658. [PMID: 34580294 PMCID: PMC8476595 DOI: 10.1038/s41467-021-25905-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/06/2021] [Indexed: 11/16/2022] Open
Abstract
Charged lepton system symmetry under combined charge, parity, and time-reversal transformation (CPT) remains scarcely tested. Despite stringent quantum-electrodynamic limits, discrepancies in predictions for the electron–positron bound state (positronium atom) motivate further investigation, including fundamental symmetry tests. While CPT noninvariance effects could be manifested in non-vanishing angular correlations between final-state photons and spin of annihilating positronium, measurements were previously limited by knowledge of the latter. Here, we demonstrate tomographic reconstruction techniques applied to three-photon annihilations of ortho-positronium atoms to estimate their spin polarisation without magnetic field or polarised positronium source. We use a plastic-scintillator-based positron-emission-tomography scanner to record ortho-positronium (o-Ps) annihilations with single-event estimation of o-Ps spin and determine the complete spectrum of an angular correlation operator sensitive to CPT-violating effects. We find no violation at the precision level of 10−4, with an over threefold improvement on the previous measurement. CPT violation could manifest itself in annihilating positronium events, but searching for this effect would require to know the spin of the annihilating system. Here, the authors do this using a positron-emission tomography scanner, finding no violation with a statistical precision of 10−4.
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Affiliation(s)
- P Moskal
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland. .,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland.
| | - A Gajos
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland. .,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland.
| | - M Mohammed
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland
| | - J Chhokar
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - N Chug
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - C Curceanu
- INFN, Laboratori Nazionali di Frascati CP 13, Via E. Fermi 40, 00044, Frascati, Italy
| | - E Czerwiński
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - M Dadgar
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - K Dulski
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - M Gorgol
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 1, 20-031, Lublin, Poland
| | - J Goworek
- Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 3, 20-031, Lublin, Poland
| | - B C Hiesmayr
- Faculty of Physics, University of Vienna Boltzmanngasse 5, 1090, Vienna, Austria
| | - B Jasińska
- Department of Nuclear Methods, Institute of Physics, Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 1, 20-031, Lublin, Poland
| | - K Kacprzak
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland
| | - Ł Kapłon
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - H Karimi
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - D Kisielewska
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland
| | - K Klimaszewski
- Department of Complex Systems, National Centre for Nuclear Research, 05-400, Otwock-Świerk, Poland
| | - G Korcyl
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - P Kowalski
- Department of Complex Systems, National Centre for Nuclear Research, 05-400, Otwock-Świerk, Poland
| | - N Krawczyk
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - W Krzemień
- High Energy Department, National Centre for Nuclear Research, 05-400, Otwock-Świerk, Poland
| | - T Kozik
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland
| | - E Kubicz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - S Niedźwiecki
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - S Parzych
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - M Pawlik-Niedźwiecka
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - L Raczyński
- Department of Complex Systems, National Centre for Nuclear Research, 05-400, Otwock-Świerk, Poland
| | - J Raj
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - S Sharma
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - S Choudhary
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - R Y Shopa
- Department of Complex Systems, National Centre for Nuclear Research, 05-400, Otwock-Świerk, Poland
| | - A Sienkiewicz
- Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 3, 20-031, Lublin, Poland
| | - M Silarski
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - M Skurzok
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,INFN, Laboratori Nazionali di Frascati CP 13, Via E. Fermi 40, 00044, Frascati, Italy
| | - E Ł Stępień
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - F Tayefi
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, S. Łojasiewicza 11, 30-348, Kraków, Poland.,Total-Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
| | - W Wiślicki
- Department of Complex Systems, National Centre for Nuclear Research, 05-400, Otwock-Świerk, Poland
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5
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Moskal P, Stępień EŁ. Prospects and Clinical Perspectives of Total-Body PET Imaging Using Plastic Scintillators. PET Clin 2020; 15:439-452. [DOI: 10.1016/j.cpet.2020.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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6
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Zgardzińska B, Chołubek G, Jarosz B, Wysogląd K, Gorgol M, Goździuk M, Chołubek M, Jasińska B. Studies on healthy and neoplastic tissues using positron annihilation lifetime spectroscopy and focused histopathological imaging. Sci Rep 2020; 10:11890. [PMID: 32681103 PMCID: PMC7367828 DOI: 10.1038/s41598-020-68727-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 06/29/2020] [Indexed: 11/29/2022] Open
Abstract
Samples of healthy and neoplastic myometrial tissues were investigated using Positron Annihilation Lifetime Spectroscopy (PALS). Meaningful differences between normal and diseased tissues were observed for each patient. The differences were also clearly visible for various kinds of lesions in each patient. The set of lifetimes and intensities obtained from PALS was correlated with the histopathological examinations of the same fragments of tissues. Strong coincidence between PALS parameters and histopathological findings was observed only in the case of a very precise correlation of the investigated area in both techniques. Measurements and discussion presented here were carried out to develop a method for measuring the sub-nanometric structure of human tissues. This kind of investigation, using positron probe, creates an opportunity of a new application in Positron Emission Tomography (PET).
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Affiliation(s)
- B Zgardzińska
- Institute of Physics, Maria Curie-Sklodowska University, Pl. Marii Curie-Skłodowskiej 1, 20-031, Lublin, Poland.
| | - G Chołubek
- Diagnostic Techniques Unit, Faculty of Health Sciences, Medical University of Lublin, Al. Racławickie 1, 20-059, Lublin, Poland
| | - B Jarosz
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Al. Racławickie 1, 20-954, Lublin, Poland
| | - K Wysogląd
- Institute of Physics, Maria Curie-Sklodowska University, Pl. Marii Curie-Skłodowskiej 1, 20-031, Lublin, Poland
| | - M Gorgol
- Institute of Physics, Maria Curie-Sklodowska University, Pl. Marii Curie-Skłodowskiej 1, 20-031, Lublin, Poland
| | - M Goździuk
- Institute of Physics, Maria Curie-Sklodowska University, Pl. Marii Curie-Skłodowskiej 1, 20-031, Lublin, Poland
| | - M Chołubek
- Medical Faculty, Medical University of Lublin, Al. Racławickie 1, 20-059, Lublin, Poland
| | - B Jasińska
- Institute of Physics, Maria Curie-Sklodowska University, Pl. Marii Curie-Skłodowskiej 1, 20-031, Lublin, Poland
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Moskal P, Kisielewska D, Curceanu C, Czerwiński E, Dulski K, Gajos A, Gorgol M, Hiesmayr B, Jasińska B, Kacprzak K, Kapłon Ł, Korcyl G, Kowalski P, Krzemień W, Kozik T, Kubicz E, Mohammed M, Niedźwiecki S, Pałka M, Pawlik-Niedźwiecka M, Raczyński L, Raj J, Sharma S, Shivani, Shopa RY, Silarski M, Skurzok M, Stępień E, Wiślicki W, Zgardzińska B. Feasibility study of the positronium imaging with the J-PET tomograph. Phys Med Biol 2019; 64:055017. [PMID: 30641509 DOI: 10.1088/1361-6560/aafe20] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A detection system of the conventional PET tomograph is set-up to record data from [Formula: see text] annihilation into two photons with energy of 511 keV, and it gives information on the density distribution of a radiopharmaceutical in the body of the object. In this paper we explore the possibility of performing the three gamma photons imaging based on ortho-positronium annihilation, as well as the possibility of positronium mean lifetime imaging with the J-PET tomograph constructed from plastic scintillators. For this purposes simulations of the ortho-positronium formation and its annihilation into three photons were performed taking into account distributions of photons' momenta as predicted by the theory of quantum electrodynamics and the response of the J-PET tomograph. In order to test the proposed ortho-positronium lifetime image reconstruction method, we concentrate on the decay of the ortho-positronium into three photons and applications of radiopharmaceuticals labeled with isotopes emitting a prompt gamma. The proposed method of imaging is based on the determination of hit-times and hit-positions of registered photons which enables the reconstruction of the time and position of the annihilation point as well as the lifetime of the ortho-positronium on an event-by-event basis. We have simulated the production of the positronium in point-like sources and in a cylindrical phantom composed of a set of different materials in which the ortho-positronium lifetime varied from 2.0 ns to 3.0 ns, as expected for ortho-positronium created in the human body. The presented reconstruction method for total-body J-PET like detector allows to achieve a mean lifetime resolution of ∼40 ps. Recent positron annihilation lifetime spectroscopy measurements of cancerous and healthy uterine tissues show that this sensitivity may allow to study the morphological changes in cell structures.
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Affiliation(s)
- P Moskal
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 30-348 Cracow, Poland
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