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Graham R, Morland D, Cade S, Imbert L, Panagiotidis E, Kurth J, Paycha F, Van den Wyngaert T. EANM position paper on challenges and opportunities of full-ring 360° CZT bone imaging: it's time to let go of planar whole-body bone imaging. Eur J Nucl Med Mol Imaging 2024:10.1007/s00259-024-06906-4. [PMID: 39259227 DOI: 10.1007/s00259-024-06906-4] [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: 06/18/2024] [Accepted: 08/27/2024] [Indexed: 09/12/2024]
Abstract
The introduction of smaller footprint, more sensitive Cadmium-Zinc-Telluride (CZT)-based detectors with improved spatial and energy resolution has enabled the design of innovative full-ring 360° CZT SPECT/CT systems (e.g., VERITON® and StarGuide™). With this transformative technology now aiming to become mainstream in clinical practice, several critical questions need to be addressed. This EANM position paper provides practical recommendations on how to use these devices for routine bone SPECT/CT studies, facilitating the transition from traditional planar whole-body imaging and conventional SPECT/CT to these novel systems. In particular, initial guidance is provided on imaging acquisition and reporting workflows, image reconstruction, and CT acquisition parameters. Given the emerging nature of this technology, the available evidence base is still limited, and the proposed adaptations in workflows and scan protocols will likely evolve before being integrated into definitive guidelines. In the meantime, this EANM position paper serves as a comprehensive guide for integrating these advanced hybrid SPECT/CT imaging systems into clinical practice and outlining areas for further study.
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Affiliation(s)
| | - David Morland
- Department of Nuclear Medicine, Institut Jean-Godinot, Reims, France
| | - Sarah Cade
- Department of Medical Physics, Royal United Hopital, Bath, UK
| | - Laetitia Imbert
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, CHRU Nancy, Université de Lorraine, IADI, INSERM U1254, Nancy, France
| | | | - Jens Kurth
- Department of Nuclear Medicine, Rostock University Medical Center, Rostock, Germany.
| | - Frédéric Paycha
- Department of Nuclear Medicine, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Tim Van den Wyngaert
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium
- Faculty of Medicine and Health Sciences (MICA - IPPON), University of Antwerp, Wilrijk, Belgium
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Bahloul A, Verger A, Lamash Y, Roth N, Dari D, Marie PY, Imbert L. Ultra-fast whole-body bone tomoscintigraphies achieved with a high-sensitivity 360° CZT camera and a dedicated deep-learning noise reduction algorithm. Eur J Nucl Med Mol Imaging 2024; 51:1215-1220. [PMID: 38082197 DOI: 10.1007/s00259-023-06558-w] [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: 10/31/2023] [Accepted: 12/01/2023] [Indexed: 03/22/2024]
Abstract
This study aimed to determine whether the whole-body bone Single Photon Emission Computed Tomography (SPECT) recording times of around 10 min, routinely provided by a high-sensitivity 360° cadmium and zinc telluride (CZT) camera, can be further reduced by a deep-learning noise reduction (DLNR) algorithm. METHODS DLNR was applied on whole-body images recorded after the injection of 545 ± 33 MBq of [99mTc]Tc-HDP in 19 patients (14 with bone metastasis) and reconstructed with 100%, 90%, 80%, 70%, 60%, 50%, 40%, and 30% of the original SPECT recording times. RESULTS Irrespective of recording time, DLNR enhanced the contrast-to-noise ratios and slightly decreased the standardized uptake values of bone lesions. Except in one markedly obese patient, the quality of DLNR processed images remained good-to-excellent down to 60% of the recording time, corresponding to around 6 min SPECT-recording. CONCLUSION Ultra-fast SPECT recordings of 6 min can be achieved when DLNR is applied on whole-body bone 360° CZT-SPECT.
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Affiliation(s)
- Achraf Bahloul
- CHRU-Nancy, Department of Nuclear Medicine & Nancyclotep imaging platform, Université de Lorraine, Nancy, France
- INSERM, IADI U1254, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Antoine Verger
- CHRU-Nancy, Department of Nuclear Medicine & Nancyclotep imaging platform, Université de Lorraine, Nancy, France
- INSERM, IADI U1254, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | | | | | - Diawad Dari
- CHRU-Nancy, Department of Nuclear Medicine & Nancyclotep imaging platform, Université de Lorraine, Nancy, France
| | - Pierre-Yves Marie
- CHRU-Nancy, Department of Nuclear Medicine & Nancyclotep imaging platform, Université de Lorraine, Nancy, France
- INSERM, IADI U1254, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Laetitia Imbert
- CHRU-Nancy, Department of Nuclear Medicine & Nancyclotep imaging platform, Université de Lorraine, Nancy, France.
- INSERM, IADI U1254, Université de Lorraine, Vandoeuvre-lès-Nancy, France.
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Filippi L, Camedda R, Frantellizzi V, Urbano N, De Vincentis G, Schillaci O. Functional Imaging in Musculoskeletal Disorders in Menopause. Semin Nucl Med 2024; 54:206-218. [PMID: 37914617 DOI: 10.1053/j.semnuclmed.2023.10.001] [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: 08/06/2023] [Revised: 10/08/2023] [Accepted: 10/09/2023] [Indexed: 11/03/2023]
Abstract
Menopause-related musculoskeletal (MSK) disorders include osteoporosis, osteoarthritis (OA), sarcopenia and sarco-obesity. This review focuses on the applications of nuclear medicine for the functional imaging of the aforementioned clinical conditions. Bone Scan (BS) with 99mTc-labeled phosphonates, alone or in combination with MRI, can identify "fresh" vertebral collapse due to age-associated osteoporosis and provides quantitative parameters characterized by a good correlation with radiological indices in patients with OA. 18F-NaF PET, particularly when performed by dynamic scan, has given encouraging results for measuring bone turnover in osteoporosis and allows the evaluation of subchondral bone metabolic activity in OA. FDG PET can help discriminate between pathological and nonpathological vertebral fractures, especially by applying appropriate SUV-based thresholds. In OA, it can effectively image inflamed joints and support appropriate clinical management. Preliminary evidences suggest a possible application of FDG in sarco-obesity for the detection and quantification of visceral adipose tissue (VAT). Further studies are needed to better define the role of nuclear medicine in menopause-related MSK disease, especially as regards the possible impact of new radiopharmaceuticals (ie, FAPI and RGD peptides) and recent technological advances (eg, total-body PET/CT scanners).
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Affiliation(s)
- Luca Filippi
- Nuclear Medicine Unit, Department of Oncohaematology, Fondazione PTV Policlinico Tor Vergata University Hospital, Rome, Italy.
| | - Riccardo Camedda
- Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy
| | - Viviana Frantellizzi
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, Sapienza University of Rome, Rome, Italy
| | - Nicoletta Urbano
- Nuclear Medicine Unit, Department of Oncohaematology, Fondazione PTV Policlinico Tor Vergata University Hospital, Rome, Italy
| | - Giuseppe De Vincentis
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, Sapienza University of Rome, Rome, Italy
| | - Orazio Schillaci
- Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy
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Boursier C, Olivier P, Claudin M, Marie PY, Imbert L. 177Lu-PSMA Treatment Monitoring Through Serial Fast Whole-Body Tomoscintigraphies Recorded With a Latest-Generation CZT-Camera. Clin Nucl Med 2023; 48:e491-e493. [PMID: 37682618 DOI: 10.1097/rlu.0000000000004811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
ABSTRACT The tomoscintigraphy monitoring of 177Lu-prostate-specific membrane antigen (PSMA) treatment may be helpful for quality control and predicting therapeutic response. Furthermore, the drawbacks of relatively low image quality and extended recording times can be overcome by new CZT-cameras providing fast, high-quality, whole-body recordings. Although still requiring further larger-scale confirmation, the current case report demonstrates that these CZT-cameras have the potential to provide straightforward and comprehensive 177Lu-PSMA treatment monitoring, that is, <20-minute whole-body tomoscintigraphy recording, tumor activities concordant with those from 68Ga-PSMA PET, and no requirement for any additional tracer injection.
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Affiliation(s)
| | - Pierre Olivier
- From the Department of Nuclear Medicine and Nancyclotep Imaging Platform, CHRU Nancy
| | - Marine Claudin
- From the Department of Nuclear Medicine and Nancyclotep Imaging Platform, CHRU Nancy
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Ichikawa H, Shibutani T, Matsutake Y, Kato T, Ikematsu R, Higashi R, Kamiya T, Shimada H, Onoguchi M. Comparison of the detectability of hot lesions on bone SPECT using six state-of-the-art SPECT/CT systems: a multicenter phantom study to optimize reconstruction parameters. Phys Eng Sci Med 2023; 46:839-849. [PMID: 37126151 DOI: 10.1007/s13246-023-01257-0] [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: 01/31/2023] [Accepted: 04/10/2023] [Indexed: 05/02/2023]
Abstract
Single-photon emission computed tomography with X-ray computed tomography (SPECT/CT) systems have diversified due to the remarkable developments made by each manufacturer. This study aimed to optimize the reconstruction parameters of six state-of-the-art SPECT/CT systems and compare their image quality of bone SPECT. SPECT images were acquired on SPECT/CT systems, including Symbia Intevo, Discovery NM/CT 670, Discovery NM/CT 870 CZT, Brightview XCT, and VERITON-CT. SIM2 bone phantom with tough lung phantoms on both sides of the spinal inserts that simulate the thorax was used for image quality assessment. SPECT images were obtained at individual workstations using an ordered subset expectation maximization method with three-dimensional resolution recovery, as well as CT attenuation and scatter correction, subset 2, iteration 12-84, and a full width at half maximum 10-mm Gaussian smooth filter. An automatic image analysis software dedicated to SIM2 bone phantom was used to assess the contrast-to-noise ratio (CNR), relative recovery coefficient, percentage of coefficient of variance, contrast, and detectability. The optimal parameters for each system were defined with superior detectability of spherical lesions and noise characteristics, as well as the highest CNR. All systems exhibited better image quality indexes using the optimal parameters than using the manufacturer's recommended parameters. The detectability of all systems was in agreement while using the optimal parameters. Detectability agreement can be achieved by optimizing the reconstruction parameters for different reconstruction algorithms, which can further improve the image quality. Therefore, future research should focus on optimal reconstruction parameters for SPECT alone.
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Affiliation(s)
- Hajime Ichikawa
- Department of Radiology, Toyohashi Municipal Hospital, Toyohashi, Japan
- Department of Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Ishikawa, 9200942, Japan
| | - Takayuki Shibutani
- Department of Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Ishikawa, 9200942, Japan
| | - Yuki Matsutake
- Department of Radiology, Kurume University Hospital, Kurume, Japan
| | - Toyohiro Kato
- Department of Radiology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Ryuji Ikematsu
- Department of Radiology, Kurume University Hospital, Kurume, Japan
| | - Riwa Higashi
- Department of Radiology, Aichi Medical University, Nagakute, Japan
| | - Takashi Kamiya
- Division of Radiology, Department of Medical Technology, Osaka University Hospital, Suita, Japan
| | - Hideki Shimada
- Department of Radiology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Masahisa Onoguchi
- Department of Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Ishikawa, 9200942, Japan.
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Melki S, Moulinet T, Verger A, Marie PY, Imbert L, Bahloul A. Targeted therapy monitoring of BRAF-V600-mutant Erdheim-Chester disease by fast quantitative whole-body bone CZT-tomoscintigraphies. Eur J Hybrid Imaging 2023; 7:1. [PMID: 36635469 PMCID: PMC9837338 DOI: 10.1186/s41824-022-00160-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 12/12/2022] [Indexed: 01/14/2023] Open
Abstract
Erdheim-Chester disease (ECD) is a rare histiocytosis due to proto-oncogene mutations, primarily affecting the long bones and possibly being treated by novel targeted therapies. 18F-FDG PET is a reference technique for ECD assessment. However, we present a case where easier and more objective monitoring of the ECD-related bone metabolism abnormalities under treatment was obtained with the standardized uptake value-based information provided by fast whole-body [Tc-99 m]-HDP bone tomoscintigraphies (QWBT) recorded with a high-sensitivity CZT-camera/computed tomography (CT) hybrid system.
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Affiliation(s)
- Saifeddine Melki
- grid.410527.50000 0004 1765 1301Department of Nuclear Medicine and Nancyclotep, CHRU Nancy, Hôpital de Brabois, Allée du Morvan, 54000 Vandoeuvre-lès-Nancy, Nancy, France
| | - Thomas Moulinet
- grid.410527.50000 0004 1765 1301Department of Internal Medicine, CHRU Nancy, 54000 Nancy, France ,grid.29172.3f0000 0001 2194 6418CNRS UMR 7365, IMoPA, Université de Lorraine, 54000 Nancy, France
| | - Antoine Verger
- grid.410527.50000 0004 1765 1301Department of Nuclear Medicine and Nancyclotep, CHRU Nancy, Hôpital de Brabois, Allée du Morvan, 54000 Vandoeuvre-lès-Nancy, Nancy, France ,grid.29172.3f0000 0001 2194 6418IADI, INSERM, UMR 1254, Université de Lorraine, 54000 Nancy, France
| | - Pierre-Yves Marie
- grid.410527.50000 0004 1765 1301Department of Nuclear Medicine and Nancyclotep, CHRU Nancy, Hôpital de Brabois, Allée du Morvan, 54000 Vandoeuvre-lès-Nancy, Nancy, France ,grid.29172.3f0000 0001 2194 6418IADI, INSERM, UMR 1254, Université de Lorraine, 54000 Nancy, France
| | - Laetitia Imbert
- grid.410527.50000 0004 1765 1301Department of Nuclear Medicine and Nancyclotep, CHRU Nancy, Hôpital de Brabois, Allée du Morvan, 54000 Vandoeuvre-lès-Nancy, Nancy, France ,grid.29172.3f0000 0001 2194 6418IADI, INSERM, UMR 1254, Université de Lorraine, 54000 Nancy, France
| | - Achraf Bahloul
- grid.410527.50000 0004 1765 1301Department of Nuclear Medicine and Nancyclotep, CHRU Nancy, Hôpital de Brabois, Allée du Morvan, 54000 Vandoeuvre-lès-Nancy, Nancy, France ,grid.29172.3f0000 0001 2194 6418IADI, INSERM, UMR 1254, Université de Lorraine, 54000 Nancy, France
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Quantitative Scintigraphy Imaging of Lingual Raynaud’s Phenomenon Using 3-Dimensional-Ring Cadmium-Zinc-Telluride Single-Photon Emission Computed Tomography/Computed Tomography. Tomography 2022; 8:2042-2048. [PMID: 36006069 PMCID: PMC9414660 DOI: 10.3390/tomography8040171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 11/17/2022] Open
Abstract
Perfusion scintigraphy with the acquisition of planar blood flow and pool images of bilateral hands has been used to aid diagnosis and to evaluate treatment response to Raynaud’s phenomenon (decreased blood flow to hand or foot). However, because of the difficulty in imaging the tongue area with a conventional gamma camera, perfusion scintigraphy imaging of patients with lingual Raynaud’s phenomenon has yet to be reported. Here, we report the case of a 59-year-old man with lingual Raynaud’s phenomenon in which blood pool imaging of the tongue was performed using three-dimensional (3D)-ring cadmium-zinc-telluride (CZT) single-photon emission computed tomography/computed tomography (SPECT/CT). During follow-up, the patient’s lingual symptoms had worsened, and follow-up blood pool SPECT/CT images also revealed decreased blood pool uptake of the tongue, showing a decreased blood pool of more than 25% on quantitative analysis. This case suggests that blood pool imaging of the tongue using 3D-ring CZT SPECT/CT has clinical significance in evaluating patients with lingual Raynaud’s phenomenon.
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Besse H, Bailly M. Case Report: Potential Applications of Using a 3D-Ring CZT SPECT for Lymphoscintigraphic Exploration of Lower Limb Edema. Front Med (Lausanne) 2022; 9:866541. [PMID: 35391887 PMCID: PMC8980414 DOI: 10.3389/fmed.2022.866541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Lymphoscintigraphy is still considered the gold standard imaging modality for diagnosing lymphedema, due to ineffective lymphatic transport resulting in edema and skin damage. However, protocol variability and poor image resolution can make the interpretation challenging. Up to now, 99 mTc-labeled colloid lymphatic travel is monitored with dual-head cameras, but single-photon emission CT (SPECT) has proved its interest. Here, we present the case of a 59-year-old-man with bilateral asymmetric lower limb edema which was explored using dual-head and new 3D-ring cadmium -zinc-telluride (CZT) SPECT cameras, confirming bilateral lower limb lymphatic dysfunction. In line with other recently published reports, this case report promotes the use of SPECT/CT in the lymphoscintigraphic exploration of lower limb edema. The recognition of the clinicopathologic features of lower limb edema is required to prevent missed diagnoses, such as compressive disease, tumors, etc., as well as to better influence the management of patients.
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Affiliation(s)
- Hélène Besse
- Nuclear Medicine Department, CHR d'Orléans, Orléans, France
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Mairal E, Imbert L, Marie PY, Bahloul A. Three-phase bone quantitative-SPECT of navicular bones with a high-sensitivity whole-body CZT-camera in a Müeller-Weiss syndrome. Eur J Nucl Med Mol Imaging 2022; 49:3295-3296. [PMID: 35192019 DOI: 10.1007/s00259-022-05733-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/12/2022] [Indexed: 11/04/2022]
Affiliation(s)
- Elise Mairal
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, CHRU Nancy, Université de Lorraine, F-54000, Nancy, France. .,Médecine Nucléaire, CHRU-Nancy Brabois, Allée du Morvan, 54500, Vandoeuvre-lès-Nancy, France.
| | - Laetitia Imbert
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, CHRU Nancy, Université de Lorraine, F-54000, Nancy, France.,IADI, INSERM, UMR 1254, Université de Lorraine, F-54000, Nancy, France
| | - Pierre-Yves Marie
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, CHRU Nancy, Université de Lorraine, F-54000, Nancy, France.,INSERM, UMR 1116, Université de Lorraine, F-54000, Nancy, France
| | - Achraf Bahloul
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, CHRU Nancy, Université de Lorraine, F-54000, Nancy, France.,IADI, INSERM, UMR 1254, Université de Lorraine, F-54000, Nancy, France
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