Reference Citation Analysis: Find an Article, Find a Category, Find a Journal, Find a Scholar

For: Brouwers AH, van Sluis J, van Snick JH, Schröder CP, Baas IO, Boellaard R, Glaudemans AWJM, Borra RJH, Lammertsma AA, Dierckx RAJO, Tsoumpas C. First-time imaging of [⁸⁹Zr]trastuzumab in breast cancer using a long axial field-of-view PET/CT scanner. Eur J Nucl Med Mol Imaging 2022;49:3593-3595. [PMID: 35362794 PMCID: PMC9308603 DOI: 10.1007/s00259-022-05777-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/19/2022] [Indexed: 11/04/2022]

For:	Brouwers AH, van Sluis J, van Snick JH, Schröder CP, Baas IO, Boellaard R, Glaudemans AWJM, Borra RJH, Lammertsma AA, Dierckx RAJO, Tsoumpas C. First-time imaging of [⁸⁹Zr]trastuzumab in breast cancer using a long axial field-of-view PET/CT scanner. Eur J Nucl Med Mol Imaging 2022;49:3593-3595. [PMID: 35362794 PMCID: PMC9308603 DOI: 10.1007/s00259-022-05777-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/19/2022] [Indexed: 11/04/2022]

Number

Cited by Other Article(s)

Roya M, van Snick JH, Slart RHJA, Noordzij W, Stormezand GN, Willemsen ATM, Boellaard R, Glaudemans AWJM, Tsoumpas C, van Sluis J. Clinical Performance Comparison of a Long Versus a Short Axial Field-of-View PET/CT Using EARL-Compliant Reconstructions. Mol Imaging Biol 2024;26:780-789. [PMID: 39093483 PMCID: PMC11436434 DOI: 10.1007/s11307-024-01939-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 06/13/2024] [Accepted: 07/22/2024] [Indexed: 08/04/2024]

Affiliation(s)

Mostafa Roya Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands.
Johannes H van Snick Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
Riemer H J A Slart Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands Department of Biomedical Photonic Imaging, Faculty of Science and Technology, University of Twente, Enchede, The Netherlands
Walter Noordzij Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
Gilles N Stormezand Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
Antoon T M Willemsen Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
Ronald Boellaard Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands Department of Radiology and Nuclear Medicine, Free University of Amsterdam, University Medical Centers Amsterdam, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
Andor W J M Glaudemans Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
Charalampos Tsoumpas Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
Joyce van Sluis Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands

Collapse

Evangelista L, Guglielmo P, Pietrzak A, Lazar AM, Urso L, Aghaee A, Eppard E. The Future Direction of Women in Nuclear Medicine and Nuclear Medicine in Women's Health. Semin Nucl Med 2024;54:302-310. [PMID: 38218670 DOI: 10.1053/j.semnuclmed.2023.12.001] [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: 10/29/2023] [Revised: 11/18/2023] [Accepted: 12/24/2023] [Indexed: 01/15/2024]

Ndlovu H, Lawal IO, Mokoala KMG, Sathekge MM. Imaging Molecular Targets and Metabolic Pathways in Breast Cancer for Improved Clinical Management: Current Practice and Future Perspectives. Int J Mol Sci 2024;25:1575. [PMID: 38338854 PMCID: PMC10855575 DOI: 10.3390/ijms25031575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open

Mohr P, van Sluis J, Providência L, van Snick JH, Lub-de Hooge MN, Willemsen AT, Glaudemans AWJM, Boellaard R, Lammertsma AA, Brouwers AH, Tsoumpas C. Long Versus Short Axial Field of View Immuno-PET/CT: Semiquantitative Evaluation for ⁸⁹Zr-Trastuzumab. J Nucl Med 2023;64:1815-1820. [PMID: 37536740 DOI: 10.2967/jnumed.123.265621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/20/2023] [Indexed: 08/05/2023] Open

Affiliation(s)

Philipp Mohr Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
Joyce van Sluis Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
Laura Providência Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
Johannes H van Snick Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
Marjolijn N Lub-de Hooge Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; and
Antoon T Willemsen Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
Andor W J M Glaudemans Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
Ronald Boellaard Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Location VUmc, Amsterdam, The Netherlands
Adriaan A Lammertsma Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
Adrienne H Brouwers Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
Charalampos Tsoumpas Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands

Collapse

Roya M, Mostafapour S, Mohr P, Providência L, Li Z, van Snick JH, Brouwers AH, Noordzij W, Willemsen ATM, Dierckx RAJO, Lammertsma AA, Glaudemans AWJM, Tsoumpas C, Slart RHJA, van Sluis J. Current and Future Use of Long Axial Field-of-View Positron Emission Tomography/Computed Tomography Scanners in Clinical Oncology. Cancers (Basel) 2023;15:5173. [PMID: 37958347 PMCID: PMC10648837 DOI: 10.3390/cancers15215173] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open

Affiliation(s)

Mostafa Roya Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Samaneh Mostafapour Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Philipp Mohr Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Laura Providência Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Zekai Li Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Johannes H. van Snick Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Adrienne H. Brouwers Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Walter Noordzij Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Antoon T. M. Willemsen Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Rudi A. J. O. Dierckx Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Adriaan A. Lammertsma Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Andor W. J. M. Glaudemans Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Charalampos Tsoumpas Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)
Riemer H. J. A. Slart Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.) Department of Biomedical Photonic Imaging, Faculty of Science and Technology, University of Twente, 7522 NB Enchede, The Netherlands
Joyce van Sluis Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands; (S.M.); (P.M.); (L.P.); (Z.L.); (J.H.v.S.); (A.H.B.); (W.N.); (A.T.M.W.); (R.A.J.O.D.); (A.A.L.); (A.W.J.M.G.); (C.T.); (J.v.S.)

Collapse

Schmidt FP, Mannheim JG, Linder PM, Will P, Kiefer LS, Conti M, la Fougère C, Rausch I. Impact of the maximum ring difference on image quality and noise characteristics of a total-body PET/CT scanner. Z Med Phys 2023:S0939-3889(23)00113-7. [PMID: 37867050 DOI: 10.1016/j.zemedi.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/14/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023]

Abstract

The sensitivity of a PET system highly depends on the axial acceptance angle or maximum ring difference (MRD), which can be particularly high for total-body scanners due to their larger axial field of views (aFOVs). This study aims to evaluate the impact on image quality (IQ) and noise performance when MRD85 (18°), the current standard for clinical use, is increased to MRD322 (52°) for the Biograph Vision Quadra (Siemens Healthineers).

METHODS

Studies with a cylindrical phantom covering the 106 cm aFOV and an IEC phantom filled with 18F, 68Ga and 89Zr were performed for acquisition times from 60 to 1800 s and activity concentrations from 0.4 to 3 kBq/ml to assess uniformity, contrast recovery coefficients (CRCs) and to characterize noise by coefficient of variation (CV). Spatial resolution was compared for both MRDs by sampling a quadrant of the FOV with a point source. Further IQ, CV, liver SUVmean and SUVmax were compared for a cohort of 5 patients scanned with [18F]FDG (3 MBq/kg, 1 h p.i.) from 30 to 300 s.

RESULTS

CV was improved by a factor of up to 1.49 and is highest for short acquisition times, peaks at the center field of view and mitigates parabolic in axial direction with no difference to MRD85 beyond the central 80 cm. No substantial differences between the two evaluated MRDs in regards to uniformity, SUVmean or CRC for the different isotopes were observed. A degradation of the average spatial resolution of 0.9 ± 0.2 mm in the central 40 cm FOV was determined with MRD322. Depending on the acquisition time MRD322 resulted in a decrease of SUVmax between 23.8% (30 s) and 9.0% (300 s).

CONCLUSION

Patient and phantom studies revealed that scan time could be lowered by approximately a factor of two with MRD322 while maintaining similar noise performance. The moderate degradation in spatial resolution for MRD322 is worth to exploit the full potential of the Quadra by either shorten scan times or leverage noise performance in particular for low count scenarios such as ultra-late imaging or dynamic studies with high temporal resolution.

Collapse

Wu Y, Sun X, Zhang B, Zhang S, Wang X, Sun Z, Liu R, Zhang M, Hu K. Marriage of radiotracers and total-body PET/CT rapid imaging system: current status and clinical advances. AMERICAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING 2023;13:195-207. [PMID: 38023815 PMCID: PMC10656629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 09/02/2023] [Indexed: 12/01/2023]

Affiliation(s)

Yuxuan Wu Beijing Engineering Research Center of Printed Electronics, School of Printing and Packaging Engineering, Beijing Institute of Graphic CommunicationBeijing 102600, China State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050, China
Xiaona Sun Beijing Engineering Research Center of Printed Electronics, School of Printing and Packaging Engineering, Beijing Institute of Graphic CommunicationBeijing 102600, China State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050, China
Boyang Zhang Beijing Engineering Research Center of Printed Electronics, School of Printing and Packaging Engineering, Beijing Institute of Graphic CommunicationBeijing 102600, China State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050, China
Siqi Zhang State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050, China
Xingkai Wang State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050, China
Zhicheng Sun Beijing Engineering Research Center of Printed Electronics, School of Printing and Packaging Engineering, Beijing Institute of Graphic CommunicationBeijing 102600, China
Ruping Liu Beijing Engineering Research Center of Printed Electronics, School of Printing and Packaging Engineering, Beijing Institute of Graphic CommunicationBeijing 102600, China
Mingrong Zhang Department of Advanced Nuclear Medicine Sciences, Institute of Quantum Medical Science, National Institutes for Quantum Science and TechnologyChiba 263-8555, Japan
Kuan Hu State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050, China Department of Advanced Nuclear Medicine Sciences, Institute of Quantum Medical Science, National Institutes for Quantum Science and TechnologyChiba 263-8555, Japan

Collapse

Dimitrakopoulou-Strauss A, Pan L, Sachpekidis C. Long axial field of view (LAFOV) PET-CT: implementation in static and dynamic oncological studies. Eur J Nucl Med Mol Imaging 2023;50:3354-3362. [PMID: 37079129 PMCID: PMC10541341 DOI: 10.1007/s00259-023-06222-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/02/2023] [Indexed: 04/21/2023]

Abstract

Long axial field of view (LAFOV) PET-CT scanners have been recently developed and are already in clinical use in few centers worldwide. Although still limited, the hitherto acquired experience with these novel systems highlights an increased sensitivity as their main advantage, which results in an increased lesion detectability. This attribute, alternatively, allows a reduction in PET acquisition time and/or administered radiotracer dose, while it renders delayed scanning of satisfying diagnostic accuracy possible. Another potential advantage of the new generation scanners is CT-less approaches for attenuation correction with the impact of marked reduction of radiation exposure, which may in turn lead to greater acceptance of longitudinal PET studies in the oncological setting. Further, the possibility for the first time of whole-body dynamic imaging, improved compartment modeling, and whole-body parametric imaging represent unique characteristics of the LAFOV PET-CT scanners. On the other hand, the advent of the novel LAFOV scanners is linked to specific challenges, such as the high purchase price and issues related to logistics and their optimal operation in a nuclear medicine department. Moreover, with regard to its research applications in oncology, the full potential of the new scanners can only be reached if different radiopharmaceuticals, both short and long-lived ones, as well as novel tracers, are available for use, which would, in turn, require the appropriate infrastructure in the area of radiochemistry. Although the novel LAFOV scanners are not yet widely used, this development represents an important step in the evolution of molecular imaging. This review presents the advantages and challenges of LAFOV PET-CT imaging for oncological applications with respect to static and dynamic acquisition protocols as well as to new tracers, while it provides an overview of the literature in the field.

Collapse

Mannheim JG, Rausch I, Conti M, la Fougère C, Schmidt FP. Characterization of the partial volume effect along the axial field-of-view of the Biograph Vision Quadra total-body PET/CT system for multiple isotopes. EJNMMI Phys 2023;10:33. [PMID: 37243869 DOI: 10.1186/s40658-023-00554-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/15/2023] [Indexed: 05/29/2023] Open

Abstract

BACKGROUND

Total-body PET scanners with axial field of views (FOVs) longer than 1 m enable new applications to study multiple organs (e.g., the brain-gut-axis) simultaneously. As the spatial resolution and the associated partial volume effect (PVE) can vary significantly along the FOV, detailed knowledge of the contrast recovery coefficients (CRCs) is a prerequisite for image analysis and interpretation of quantitative results. The aim of this study was to determine the CRCs, as well as voxel noise, for multiple isotopes throughout the 1.06 m axial FOV of the Biograph Vision Quadra PET/CT system (Siemens Healthineers).

MATERIALS AND METHODS

Cylindrical phantoms equipped with three different sphere sizes (inner diameters 7.86 mm, 28 and 37 mm) were utilized for the PVE evaluation. The 7.86 mm sphere was filled with F-18 (8:1 and 4:1), Ga-68 (8:1) and Zr-89 (8:1). The 28 mm and 37 mm spheres were filled with F-18 (8:1). Background concentration in the respective phantoms was of ~ 3 kBq/ml. The phantoms were measured at multiple positions in the FOV (axial: 0, 10, 20, 30, 40 and 50 cm, transaxial: 0, 10, 20 cm). The data were reconstructed with the standard clinical protocol, including PSF correction and TOF information with up to 10 iterations for maximum ring differences (MRDs) of 85 and 322; CRCs, as well as voxel noise levels, were determined for each position.

RESULTS

F-18 CRCs (SBR 8:1 and 4:1) of the 7.86 mm sphere decreased up to 18% from the center FOV (cFOV) toward the transaxial edge and increased up to 17% toward the axial edge. Noise levels were below 15% for the default clinical reconstruction parameters. The larger spheres exhibited a similar pattern. Zr-89 revealed ~ 10% lower CRCs than F-18 but larger noise (9.1% (F-18), 19.1% (Zr-89); iteration 4, cFOV) for the default reconstruction. Zr-89 noise levels in the cFOV significantly decreased (~ 28%) when reconstructing the data with MRD322 compared with MRD85 along with a slight decrease in CRC values. Ga-68 exhibited the lowest CRCs for the three isotopes and noise characteristics comparable to those of F-18.

CONCLUSIONS

Distinct differences in the PVE within the FOV were detected for clinically relevant isotopes F-18, Ga-68 and Zr-89, as well as for different sphere sizes. Depending on the positions inside the FOV, the sphere-to-background ratios, count statistics and isotope used, this can result in an up to 50% difference between CRCs. Hence, these changes in PVE can significantly affect the quantitative analysis of patient data. MRD322 resulted in slightly lower CRC values, especially in the center FOV, whereas the voxel noise significantly decreased compared with MRD85.

Collapse

Molecular Imaging Diagnosis of Renal Cancer Using ^99mTc-Sestamibi SPECT/CT and Girentuximab PET-CT-Current Evidence and Future Development of Novel Techniques. Diagnostics (Basel) 2023;13:diagnostics13040593. [PMID: 36832081 PMCID: PMC9954934 DOI: 10.3390/diagnostics13040593] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/17/2023] [Accepted: 02/01/2023] [Indexed: 02/07/2023] Open

de Vries EFJ, Elsinga PH, Tsoumpas C. Will extended field-of-view PET/CT depopulate the graveyard of failed PET radiopharmaceuticals? Cancer Imaging 2022;22:70. [PMID: 36529738 PMCID: PMC9761966 DOI: 10.1186/s40644-022-00510-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open

van Sluis J, Borra R, Tsoumpas C, van Snick JH, Roya M, ten Hove D, Brouwers AH, Lammertsma AA, Noordzij W, Dierckx RA, Slart RH, Glaudemans AW. Extending the clinical capabilities of short- and long-lived positron-emitting radionuclides through high sensitivity PET/CT. Cancer Imaging 2022;22:69. [PMID: 36527149 PMCID: PMC9755796 DOI: 10.1186/s40644-022-00507-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open

Affiliation(s)

Joyce van Sluis grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Ronald Borra grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Charalampos Tsoumpas grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Johannes H. van Snick grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Mostafa Roya grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Dik ten Hove grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Adrienne H. Brouwers grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Adriaan A. Lammertsma grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Walter Noordzij grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Rudi A.J.O. Dierckx grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Riemer H.J.A. Slart grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
Andor W.J.M. Glaudemans grid.4494.d0000 0000 9558 4598Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands

Collapse