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Kim YI, Lee DY, Sung C, Lee SJ, Oh SJ, Oh JS, Yoon S, Lee JL, Lim B, Suh J, Park J, You D, Jeong IG, Hong JH, Ahn H, Kim CS, Ryu JS. Comparison of digital and analog [ 68Ga]Ga-PSMA-11 PET/CT for detecting post-prostatectomy biochemical recurrence in prostate cancer patients: a prospective study. Sci Rep 2024; 14:14989. [PMID: 38951530 PMCID: PMC11217435 DOI: 10.1038/s41598-024-65399-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 06/19/2024] [Indexed: 07/03/2024] Open
Abstract
Digital positron emission tomography/computed tomography (PET/CT) has shown enhanced sensitivity and spatial resolution compared with analog PET/CT. The present study compared the diagnostic performance of digital and analog PET/CT with [68Ga]Ga-PSMA-11 in prostate cancer patients who experienced biochemical recurrence (BCR) after prostatectomy. Forty prostate cancer patients who experienced BCR, defined as serum prostate-specific antigen (PSA) concentrations exceeding 0.2 ng/mL after prostatectomy, were prospectively recruited. These patients were stratified into three groups based on their serum PSA levels. [68Ga]Ga-PSMA-11 was injected into each patient, and images were acquired using both analog and digital PET/CT scanners. Analog and digital PET/CT showed comparable lesion detection rate (71.8% vs. 74.4%), sensitivity (85.0% vs. 90.0%), and positive predictive value (PPV, 100.0% vs. 100.0%). However, digital PET/CT detected more lesions (139 vs. 111) and had higher maximum standardized uptake values (SUVmax, 14.3 vs. 10.3) and higher kappa index (0.657 vs. 0.502) than analog PET/CT, regardless of serum PSA levels. On both analog and digital PET/CT, lesion detection rates and interrater agreement increased with increasing serum PSA levels. Compared with analog PET/CT, digital PET/CT detected more lesions with a higher SUVmax and better interrater agreement in prostate cancer patients who experienced BCR after prostatectomy.
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Affiliation(s)
- Yong-Il Kim
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dong Yun Lee
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Changhwan Sung
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sang Ju Lee
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seung Jun Oh
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jungsu S Oh
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Shinkyo Yoon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Lyun Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Bumjin Lim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jungyo Suh
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Juhyun Park
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dalsan You
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - In Gab Jeong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jun Hyuk Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hanjong Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Choung-Soo Kim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jin-Sook Ryu
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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Petranović Ovčariček P, Calderoni L, Campenni A, Fanti S, Giovanella L. Molecular imaging of thyroid and parathyroid diseases. Expert Rev Endocrinol Metab 2024; 19:317-333. [PMID: 38899737 DOI: 10.1080/17446651.2024.2365776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
INTRODUCTION Molecular imaging of thyroid and parathyroid diseases has changed in recent years due to the introduction of new radiopharmaceuticals and new imaging techniques. Accordingly, we provided an clinicians-oriented overview of such techniques and their indications. AREAS COVERED A review of the literature was performed in the PubMed, Web of Science, and Scopus without time or language restrictions through the use of one or more fitting search criteria and terms as well as through screening of references in relevant selected papers. Literature up to and including December 2023 was included. Screening of titles/abstracts and removal of duplicates was performed and the full texts of the remaining potentially relevant articles were retrieved and reviewed. EXPERT OPINION Thyroid and parathyroid scintigraphy remains integral in patients with thyrotoxicosis, thyroid nodules, differentiated thyroid cancer and, respectively, hyperparathyroidism. In the last years positron-emission tomography with different tracers emerged as a more accurate alternative in evaluating indeterminate thyroid nodules [18F-fluorodeoxyglucose (FDG)], differentiated thyroid cancer [124I-iodide, 18F-tetrafluoroborate, 18F-FDG] and hyperparathyroidism [18F-fluorocholine]. Other PET tracers are useful in evaluating relapsing/advanced forms of medullary thyroid cancer (18F-FDOPA) and selecting patients with advanced follicular and medullary thyroid cancers for theranostic treatments (68Ga/177Ga-somatostatin analogues).
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Affiliation(s)
- Petra Petranović Ovčariček
- Department of Oncology and Nuclear Medicine, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Letizia Calderoni
- Nuclear Medicine Division, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola, Bologna, Italy
- Nuclear Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Alfredo Campenni
- Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, Unit of Nuclear Medicine, University of Messina, Messina, Italy
| | - Stefano Fanti
- Nuclear Medicine Division, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola, Bologna, Italy
- Nuclear Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Luca Giovanella
- Department of Nuclear Medicine, Gruppo Ospedaliero Moncucco, Lugano, Switzerland
- Clinic for Nuclear Medicine, University Hospital of Zürich, Zürich, Switzerland
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Abouzian S, López-Mora DA, Fernández-León A, Facundo C, Stefaneli P, Flotats A. The added value of [ 18F]fluorocholine PET/TC in the assessment of secondary or tertiary hyperparathyroidism. Rev Esp Med Nucl Imagen Mol 2024; 43:500005. [PMID: 38621476 DOI: 10.1016/j.remnie.2024.500005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 03/18/2024] [Indexed: 04/17/2024]
Affiliation(s)
- S Abouzian
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
| | - D A López-Mora
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - A Fernández-León
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - C Facundo
- Unidad de Trasplante Renal, Fundación Puigvert, Barcelona, Spain
| | - P Stefaneli
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - A Flotats
- Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
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Wu J, Sun Y, Zhang Q, Lin Y, Wang P, Leng L, Cao L, Yu F, Deng H. Giant functional parathyroid carcinoma: a case report and literature review. Front Oncol 2024; 13:1310290. [PMID: 38250555 PMCID: PMC10797129 DOI: 10.3389/fonc.2023.1310290] [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: 10/09/2023] [Accepted: 12/12/2023] [Indexed: 01/23/2024] Open
Abstract
Background Parathyroid carcinoma is an infrequent neoplasm of the endocrine system, constituting roughly 0.5% to 5% of cases of primary hyperparathyroidism. The diagnosis of this condition presents a unique challenge for healthcare professionals. Case report We present a case of a 77-year-old female patient who presented with a longstanding right-sided neck tumor. The Positron emission tomography-computed tomography (PET-CT) scan detected a substantial tumor situated at the inferior border of the thyroid gland. A surgical procedure was conducted, resulting in the total excision of the tumor. The diagnosis of parathyroid carcinoma was confirmed through pathological investigation. At the six-month follow-up, the patient exhibited favorable post-operative outcomes with no evidence of recurrence. Conclusion The primary approaches for managing parathyroid carcinoma involve precise diagnosis and surgical removal. This case report provides confirmation that the implementation of rigorous treatment measures can yield a substantial improvement in the prognosis.
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Affiliation(s)
- Jian Wu
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Yifang Sun
- Department of Ophthalmology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Qian Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Ying Lin
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Pengzhen Wang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Lei Leng
- Guangzhou Institute of Pathology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Lei Cao
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Feng Yu
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Haiyan Deng
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, Guangdong, China
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Kersting D, Moraitis A, Sraieb M, Zarrad F, Umutlu L, Rischpler C, Fendler WP, Herrmann K, Weber M, Conti M, Fragoso Costa P, Jentzen W. Quantification performance of silicon photomultiplier-based PET for small 18F-, 68Ga- and 124I-avid lesions in the context of radionuclide therapy planning. Phys Med 2023; 114:103149. [PMID: 37778973 DOI: 10.1016/j.ejmp.2023.103149] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/03/2023] [Accepted: 09/22/2023] [Indexed: 10/03/2023] Open
Abstract
PURPOSE The aim of this study was to investigate conditions for reliable quantification of sub-centimeter lesions with low18F,68Ga, and124I uptake using a silicon photomultiplier-based PET/CT system. METHODS A small tumor phantom was investigated under challenging but clinically realistic conditions resembling prostate and thyroid cancer lymph node metastases (6 spheres with 3.7-9.7 mm in diameter, 9 different activity concentrations ranging from about 0.25-25 kBq/mL, and a signal-to-background ratio of 20). Radionuclides with different positron branching ratios and prompt gamma coincidence contributions were investigated. Maximum-, contour-, and oversize-based partial volume effect (PVE) correction approaches were applied. Detection and quantification performance were estimated, considering a ±30 % deviation between imaged-derived and true activity concentrations as acceptable. A standard and a prolonged acquisition time and two image reconstruction algorithms (time-of-flight with/without point spread function modelling) were analyzed. Clinical data were evaluated to assess agreement of PVE-correction approaches indicating lesion quantification validity. RESULTS The smallest 3.7-mm sphere was not visible. If the lesions were clearly observed, quantification was, except for a few cases, acceptable using contour- or oversized-based PVE-corrections. Quantification accuracy did not substantially differ between 18F, 68Ga, and 124I. No systematic differences between the analyzed reconstruction algorithms or shorter and larger acquisition times were observed. In the clinical evaluation of 20 lesions, an excellent statistical agreement between oversize- and contour-based PVE-corrections was observed. CONCLUSIONS At the lower end of size (<10 mm) and activity concentration ranges of lymph-node metastases, quantification with reasonable accuracy is possible for 18F, 68Ga, and 124I, possibly allowing pre-therapeutic lesion dosimetry and individualized radionuclide therapy planning.
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Affiliation(s)
- David Kersting
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany.
| | - Alexandros Moraitis
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Miriam Sraieb
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Fadi Zarrad
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Lale Umutlu
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany; Institute of Diagnostic and Interventional Radiology and Neuroradiology, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Christoph Rischpler
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Wolfgang Peter Fendler
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Manuel Weber
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | | | - Pedro Fragoso Costa
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Walter Jentzen
- Department of Nuclear Medicine, West German Cancer Center (WTZ), University Hospital Essen, University of Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
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Abhishek B, Wakankar R, Dharmashaktu Y, Damle NA, Kumar P, Bal C, Tripathi M, Kandasamy D, Khadgawat R, Agarwal S, Vuthaluru S, Chumber S. Comparison of Neck Ultrasonography, Dual Phase 99mTc-Sestamibi with early SPECT-CT & 18F-Fluorocholine PET-CT as First Line Imaging in Patients with Primary Hyperparathyroidism. Indian J Nucl Med 2023; 38:208-217. [PMID: 38046978 PMCID: PMC10693368 DOI: 10.4103/ijnm.ijnm_28_22] [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: 02/05/2022] [Revised: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 12/05/2023] Open
Abstract
Introduction Successful surgical treatment for primary hyperparathyroidism requires accurate localization of abnormal parathyroid tissue in terms of location and number. Imaging is important for localizing the parathyroid adenoma, and there has been significant interest in 18F-fluorocholine (FCH) positron emission tomography/computed tomography (PET/CT) for this purpose. Aim This study attempted to ascertain the utility of 18F-FCH PET/CT as a first-line investigation in preoperative localization of abnormal parathyroid tissue in primary hyperparathyroidism, in comparison with 99mTc-sestamibi dual-phase scintigraphy with early single-photon emission computed tomography (SPECT)/CT and neck ultrasonography. Materials and Methods Fifty-five patients with biochemical features of primary hyperparathyroidism were enrolled in this study. They underwent neck ultrasonography, 99mTc-sestamibi dual-phase scintigraphy with early SPECT/CT, and 18F-FCH PET/CT for localization of parathyroid lesions. Thirty-three patients underwent surgical resection of the detected lesions. For two patients, clinical and biochemical follow-up was used as a gold standard. Results A total of 40 lesions were resected in the 33 patients who underwent surgery. A further two lesions were localized in two patients with clinical and biochemical follow-up as the gold standard. Of these 42 lesions, 41 were detected in preoperative imaging and 1 lesion was noted intraoperatively and resected. 41/42 lesions were detected by 18F-FCH PET/CT (detection rate: 97.6%), 33/42 by 99mTc-sestamibi dual-phase scintigraphy with early SPECT/CT (detection rate: 78.5%), and 30/42 by neck ultrasonography (detection rate: 71.4%). Conclusion Detection rates on 18F-FCH PET/CT were superior to both 99mTc-sestamibi dual-phase scintigraphy with early SPECT/CT and neck ultrasonography in preoperative localization of parathyroid lesions in patients with primary hyperparathyroidism.
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Affiliation(s)
- Behera Abhishek
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Ritwik Wakankar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Yamini Dharmashaktu
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | | | - Praveen Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Chandrasekhar Bal
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Madhavi Tripathi
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | | | - Rajesh Khadgawat
- Department of Endocrinology, All India Institute of Medical Sciences, New Delhi, India
| | - Shipra Agarwal
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Seenu Vuthaluru
- Department of Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Sunil Chumber
- Department of Surgery, All India Institute of Medical Sciences, New Delhi, India
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Comparing digital to analog prostate-specific membrane antigen-targeted piflufolastat 18 F PET/CT in prostate cancer patients in early biochemical failure. Nucl Med Commun 2023; 44:187-193. [PMID: 36525002 DOI: 10.1097/mnm.0000000000001652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE Prostate-specific membrane antigen (PSMA) positron emission tomography/computer tomography (PET/CT) in prostate cancer patients with biochemical failure(BCF) showslimited sensitivity when the prostate-specific antigen(PSA) <0.5 ng/mL. The development of digital PET/CT has greatly improved smaller lesion detection. This study's goal was to compare the performance and clinical value of PSMA-targeted piflufolastat PET/CT for prostate cancer BCF with digital versus analog PET/CT. METHODS In this retrospective study, all piflufolastat PET/CT scans in subjects with PSA ≤ 3.0 ng/mL who were referred for prostate cancer BCF were included. The performance characteristics of 171 analog PET/CT studies in 155 subjects from May 2017 to January 2020 and 106 digital PET/CT studies in 103 subjects from February 2020 to December 2020 were compared. Lesions were considered malignant if they did not match the known physiological distribution of piflufolastat and did not represent uptake in benign lesions. PSMA PET/CT studies were considered positive if at least one malignant lesion was detected and negative if none were detected. RESULTS Digital piflufolastat PET/CT outperformed analog piflufolastat PET/CT in subjects with PSA < 0.5 ng/mL with a positivity rate of 69% versus 37%, respectively. In patients with PSA ≥ 0.5 ng/mL, both technologies performed similarly. There was no statistically significant difference between the number or size of piflufolastat-avid lesions detected per PET/CT study. CONCLUSION In prostate cancer patients with BCF and PSA < 0.5 ng/mL, digital piflufolastat PET/CT has a higher detection rate of malignant lesions than analog piflufolastat PET/CT.
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Jacquet-Francillon N, Morelec I, Germain N, Prades JM, Habouzit V, Mariat C, Bonnefoy PB, Prevot N. Performance of quantitative measurements in [18F]fluorocholine positron emission tomography/computed tomography for parathyroid imaging (P2TH study). Front Med (Lausanne) 2022; 9:956580. [PMID: 35983092 PMCID: PMC9380568 DOI: 10.3389/fmed.2022.956580] [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: 05/30/2022] [Accepted: 07/05/2022] [Indexed: 11/23/2022] Open
Abstract
Objective [18F]Fluorocholine positron emission tomography/computed tomography (PET/CT) is used frequently in addition to [99mTc]Tc-Sestamibi scintigraphy and ultrasonography for the location of hyperfunctioning parathyroid glands. The aim of this study is to evaluate the performance of quantitative criteria in [18F]fluorocholine PET/CT for localization of hyperfunctioning parathyroid glands. The secondary objective is to highlight a correlation between the detection rate of [18F]fluorocholine PET/CT and serum parathyroid hormone (PTH) level. Materials and methods In two academic centers, we retrospectively included patients with biological hyperparathyroidism (HPT) and who had [18F]fluorocholine PET/CT. After a visual analysis, to measure the overall performance of [18F]fluorocholine PET/CT, a blind reading was carried out with standardized measurements of maximum standardized uptake value (SUVmax), liver ratio, thyroid ratio, and size ratio. We analyzed the quantitative criteria of [18F]fluorocholine PET/CT compared to the histological results, in particular to identify differences between adenomas and hyperplasias. We compared the performance of each quantitative criterion to the overall sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of [18F]fluorocholine PET/CT. The detection rate of hyperfunctioning parathyroid glands was calculated in subgroups of serum PTH level. Results The quantitative criteria in [18F]fluorocholine PET/CT were measured for 120 patients (135 lesions). The areas under the receiver operating characteristic (ROC) curve representing SUVmax and liver ratio were significantly increased. The optimal cut-off values represented by the maximum Youden index was >4.12 for SUVmax and >27.4 for liver ratio. Beyond certain threshold values of SUVmax (>4.12) or liver ratio (>38.1), all the lesions were histologically proven adenomas. SUVmax and liver ratio were significantly higher for adenomas than for hyperplasias and differential diagnosis (p = 0.0085 and p = 0.0002). The positivity of [18F]fluorocholine PET/CT was correlated with PTH level. Detection rates were 55.56, 75.56, and 87.5%, respectively, for serum PTH < 70, 70 to 120, and >120 ng/ml. Conclusion Semi-quantitative measurements (SUVmax and liver ratio) should be considered as additional tools in interpretation of [18F]fluorocholine PET/CT. These quantitative parameters have lower overall performance but higher specificity than overall visual analysis in identifying an adenoma. Above certain threshold values, all lesions are adenomas. [18F]fluorocholine PET/CT confirms excellent performance for the detection of hyperfunctional parathyroids. For serum PTH levels < 70 ng/ml, the detection rate of [18F]fluorocholine PET/CT is strongly decreased.
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Affiliation(s)
- Nicolas Jacquet-Francillon
- Department of Nuclear Medicine, Saint-Étienne University Hospital, University of Saint-Étienne, Saint-Étienne, France
- *Correspondence: Nicolas Jacquet-Francillon,
| | - Isabelle Morelec
- Department of Nuclear Medicine, Hospices Civils de Lyon, Lyon, France
| | - Natacha Germain
- Division of Endocrinology, Diabetes, Metabolism and Eating Disorders, Centre Hospitalo-Universitaire (CHU) de Saint-Étienne, Saint-Étienne, France
- Eating Disorders, Addictions and Extreme Bodyweight Research Group (TAPE) EA 7423, Université Jean Monnet, Saint-Étienne, France
| | - Jean-Michel Prades
- Department of Otorhinolaryngology, Head and Neck Surgery, Hospital Saint-Étienne, Saint-Étienne, France
- Laboratory of Human Anatomy, Faculty of Medicine, University of Saint-Étienne, Saint-Étienne, France
| | - Vincent Habouzit
- Department of Nuclear Medicine, Saint-Étienne University Hospital, University of Saint-Étienne, Saint-Étienne, France
| | - Christophe Mariat
- Department of Nephrology, Dialysis and Renal Transplantation, Hôpital Nord, Centre Hospitalo-Universitaire (CHU) de Saint-Étienne, Jean Monnet University, Université de Lyon, Saint-Étienne, France
- Groupe Immunité des Muqueuses et Agents Pathogènes GIMAP, EA 3065, University of Jean Monnet and Université de Lyon, Saint-Étienne, France
| | - Pierre-Benoit Bonnefoy
- Department of Nuclear Medicine, Saint-Étienne University Hospital, University of Saint-Étienne, Saint-Étienne, France
| | - Nathalie Prevot
- Department of Nuclear Medicine, Saint-Étienne University Hospital, University of Saint-Étienne, Saint-Étienne, France
- INSERM, U1059, SAINBIOSE, Univ Lyon, Univ Saint-Etienne, Saint-Etienne, France
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Adnan A, Raju S, Kumar R, Basu S. An Appraisal and Update of Fluorodeoxyglucose and Non-Fluorodeoxyglucose-PET Tracers in Thyroid and Non-Thyroid Endocrine Neoplasms. PET Clin 2022; 17:343-367. [PMID: 35717097 DOI: 10.1016/j.cpet.2022.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Endocrine neoplasms and malignancies are a diverse group of tumors with varied clinical, histopathologic, and functional features. These tumors vary from sporadic to hereditary, isolated entities to multiple neoplastic syndromes, functioning and non functioning tumors, unifocal locally invasive, and advanced to multifocal tumors with disseminated distant metastases. The presence of various specific biomarkers and specific receptor targets serves as valuable tools for diagnosis, prognosis, and management. PET-CT with FDG and a multitude of novel and specific radiotracers towards specific therapeutic targets mandates personalization of their use, so as to ensure maximum clinical benefit in the management of these neoplasms.
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Affiliation(s)
- Aadil Adnan
- Radiation Medicine Centre (B.A.R.C), Tata Memorial Centre Annexe, Parel, Mumbai, India; Homi Bhabha National Institute, Mumbai, India
| | - Shobhana Raju
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Rakesh Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Sandip Basu
- Radiation Medicine Centre (B.A.R.C), Tata Memorial Centre Annexe, Parel, Mumbai, India; Homi Bhabha National Institute, Mumbai, India.
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Huglo PD. Functional imaging for hyperparathyroidism. Presse Med 2022; 51:104120. [PMID: 35321847 DOI: 10.1016/j.lpm.2022.104120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 01/06/2022] [Accepted: 03/11/2022] [Indexed: 01/01/2023] Open
Abstract
Once hyperparathyroidism has been proven, the goal of parathyroid functional imaging is to identify one or more pathological glands in view of guiding a possibly targeted surgical procedure, while maximizing the chances for recovery. Currently, parathyroid radionuclide imaging is based on two techniques, parathyroid scintigraphy and 18F-fluorocholine - positron emission tomography (PET). The main radiopharmaceutical in scintigraphy is 99mTc-sestamibi, which can be used alone, in the dual-phase parathyroid scan, or in comparison with a thyroid radiotracer, pertechnetate (NaTcO4) or iodine 123 (dual-tracer method). The acquisitions can be planar and/or tomographic (SPECT). It is now recognized that the 99mTc-sestamibi - iodine 123 dual-tracer method is more efficient than the dual-phase scan, while SPECT-CT improves the sensitivity and specificity of the scintigraphy. This imaging and cervical ultrasonography are considered to be the two first-line reference techniques in preoperative assessment of hyperparathyroidism. More recently developed, 18F-fluorocholine detected by PET-CT has shown excellent performance, at least equal to that of scintigraphy. Initially considered as a second-line technique, its advantages over scintigraphy have prompted some authors to suggest it as the only examination to be performed in preoperative assessment of hyperparathyroidism. That said, due to a lack of specificity in 18F-fluorocholine uptake, which has been observed on inflammatory lesions and, particularly, in the mediastinal lymph nodes, and given the absence of simultaneous comparison of thyroid function, this strategy remains contested, and possibly reserved for patients without any associated thyroid pathology; large-scale evaluation would be justified.
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Affiliation(s)
- Pr Damien Huglo
- Univ Lille, Faculté de Médecine, 1 Place de Verdun, 5900 Lille, France; CHU Lille, Service de Médecine Nucléaire, Hôpital Huriez, rue Michel Polonovski, 59000 Lille, France; INSERM U1189 OncoTHAI, avenue Oscar Lambret, 59000 Lille, France.
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Naik M, Khan SR, Owusu D, Alsafi A, Palazzo F, Jackson JE, Harvey CJ, Barwick TD. Contemporary Multimodality Imaging of Primary Hyperparathyroidism. Radiographics 2022; 42:841-860. [PMID: 35427174 DOI: 10.1148/rg.210170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Primary hyperparathyroidism (PHPT) is a disorder characterized by hypercalcemia and an elevated or inappropriately normal parathyroid hormone level. Classic features include bone pain, fractures, renal impairment, nephrolithiasis, and mental disturbance. However, most cases of PHPT are now asymptomatic at diagnosis or associated with nonspecific neurocognitive changes. The most frequent cause of PHPT is a solitary adenoma that secretes parathyroid hormone without the normal suppressive effect of serum calcium. A smaller number of cases can be attributed to multigland disease. Parathyroidectomy is curative and is considered for nearly all affected patients. Although PHPT is primarily a clinical and biochemical diagnosis, imaging is key to the localization of adenomas, which can lie in conventional locations adjacent to the thyroid gland or less commonly at ectopic sites in the neck and mediastinum. In addition, accurate localization facilitates the use of a minimally invasive or targeted surgical approach. Frequently used localization techniques include US, parathyroid scintigraphy, and four-dimensional CT. Second- and third-line modalities such as MRI, PET/CT, and selective venous sampling with or without parathyroid arteriography can increase confidence before surgery. These localization techniques, along with the associated technical aspects, relative advantages, and drawbacks, are described. Local expertise, patient factors, and surgeon preference are important considerations when determining the type and sequence of investigation. A multimodality approach is ultimately desirable, particularly in challenging scenarios such as multigland disease, localization of ectopic adenomas, and persistent or recurrent PHPT. Online supplemental material is available for this article. ©RSNA, 2022.
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Affiliation(s)
- Mitesh Naik
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
| | - Sairah R Khan
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
| | - Desmond Owusu
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
| | - Ali Alsafi
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
| | - Fausto Palazzo
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
| | - James E Jackson
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
| | - Chris J Harvey
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
| | - Tara D Barwick
- From the Department of Radiology (M.N., S.R.K., A.A., J.E.J., C.J.H., T.D.B.) and Department of Endocrine and Thyroid Surgery (F.P.), Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, England; Department of Radiology, Dartford and Gravesham NHS Trust, Kent, England (D.O.); and Department of Surgery and Cancer, Imperial College London, London, England (T.D.B.)
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Kersting D, Settelmeier S, Mavroeidi IA, Herrmann K, Seifert R, Rischpler C. Shining Damaged Hearts: Immunotherapy-Related Cardiotoxicity in the Spotlight of Nuclear Cardiology. Int J Mol Sci 2022; 23:3802. [PMID: 35409161 PMCID: PMC8998973 DOI: 10.3390/ijms23073802] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/20/2022] [Accepted: 03/25/2022] [Indexed: 11/30/2022] Open
Abstract
The emerging use of immunotherapies in cancer treatment increases the risk of immunotherapy-related cardiotoxicity. In contrast to conventional chemotherapy, these novel therapies have expanded the forms and presentations of cardiovascular damage to a broad spectrum from asymptomatic changes to fulminant short- and long-term complications in terms of cardiomyopathy, arrythmia, and vascular disease. In cancer patients and, particularly, cancer patients undergoing (immune-)therapy, cardio-oncological monitoring is a complex interplay between pretherapeutic risk assessment, identification of impending cardiotoxicity, and post-therapeutic surveillance. For these purposes, the cardio-oncologist can revert to a broad spectrum of nuclear cardiological diagnostic workup. The most promising commonly used nuclear medicine imaging techniques in relation to immunotherapy will be discussed in this review article with a special focus on the continuous development of highly specific molecular markers and steadily improving methods of image generation. The review closes with an outlook on possible new developments of molecular imaging and advanced image evaluation techniques in this exciting and increasingly growing field of immunotherapy-related cardiotoxicity.
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Affiliation(s)
- David Kersting
- Department of Nuclear Medicine, University Hospital Essen, West German Cancer Center (WTZ), University of Duisburg-Essen, 45147 Essen, Germany; (K.H.); (R.S.); (C.R.)
- German Cancer Consortium (DKTK, Partner Site Essen/Düsseldorf), 45147 Essen, Germany;
| | - Stephan Settelmeier
- Department of Cardiology and Vascular Medicine, University Hospital Essen, West German Heart and Vascular Center, University of Duisburg-Essen, 45147 Essen, Germany;
| | - Ilektra-Antonia Mavroeidi
- German Cancer Consortium (DKTK, Partner Site Essen/Düsseldorf), 45147 Essen, Germany;
- Clinic for Internal Medicine (Tumor Research), University Hospital Essen, West German Cancer Center (WTZ), University of Duisburg-Essen, 45147 Essen, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, West German Cancer Center (WTZ), University of Duisburg-Essen, 45147 Essen, Germany; (K.H.); (R.S.); (C.R.)
- German Cancer Consortium (DKTK, Partner Site Essen/Düsseldorf), 45147 Essen, Germany;
| | - Robert Seifert
- Department of Nuclear Medicine, University Hospital Essen, West German Cancer Center (WTZ), University of Duisburg-Essen, 45147 Essen, Germany; (K.H.); (R.S.); (C.R.)
- German Cancer Consortium (DKTK, Partner Site Essen/Düsseldorf), 45147 Essen, Germany;
| | - Christoph Rischpler
- Department of Nuclear Medicine, University Hospital Essen, West German Cancer Center (WTZ), University of Duisburg-Essen, 45147 Essen, Germany; (K.H.); (R.S.); (C.R.)
- German Cancer Consortium (DKTK, Partner Site Essen/Düsseldorf), 45147 Essen, Germany;
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Gass JM, Wicke C, Mona C, Strobel K, Müller W, Metzger J, Suter-Widmer I, Henzen C, Fischli S. 18F-Fluorocholine-PET combined with contrast-enhanced CT for localizing hyperfunctioning parathyroid glands and optimizing surgical treatment in patients with hyperparathyroidism. Endocrine 2022; 75:593-600. [PMID: 34561784 DOI: 10.1007/s12020-021-02877-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/12/2021] [Indexed: 12/20/2022]
Abstract
PURPOSE Hyperparathyroidism (HPT) is a common disorder. A cure can only be achieved by removing all diseased glands. It is critical to localize the hyperfunctioning glands exactly to prevent extensive surgical exploration. The number of false negative/inconclusive results in standard imaging techniques is high. We aimed to evaluate the diagnostic accuracy of 18F-Fluorocholine-PET in combination with contrast-enhanced CT (FCH-PET/CT) and its sensitivity in patients with primary, secondary/tertiary, and familial HPT with negative and/or discordant findings in ultrasound and/or 99mTc-sestamibi scintigraphy/SPECT/CT. METHODS A total of 96 patients with HPT and negative/equivocal conventional imaging were referred for FCH-PET/CT. In this retrospective, single institution study, 69 patients, who have undergone surgery and histopathologic workup, were analyzed. Of the 69 patients included, 60 patients suffered from primary HPT, four from secondary or tertiary HPT, and five from familial HPT. Sensitivities, positive predictive values, and accuracies were calculated. RESULTS Sensitivity/positive predictive value (PPV) per lesion was 87.5/98.3% for primary HPT, 75/100% for secondary/tertiary HPT and 25/66.7% for familial HPT. Sensitivity/PPV per patient was 91.5/98.2% for primary HPT, 100/100% for secondary/tertiary HPT and 50/100% for familial HPT. All patients showed normalized serum calcium levels in the postoperative period. The follow-up rate was 97%. Of the patients included in the study, 58 of 60 patients with primary HPT, and four of four patients with secondary/tertiary HPT showed normal calcium and parathyroid hormone (PTH) levels after six months and were cured. Of the patients with familial HPT, four of five patients were cured. CONCLUSION Diagnostic accuracy of 18F-Fluorocholine-PET/CT for patients with pHPT is excellent. 18F-Fluorocholine-PET/CT is a valuable tool for endocrine surgeons to optimize the surgical treatment of patients with hyperparathyroidism.
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Affiliation(s)
- Jörn-Markus Gass
- Division of Visceral Surgery, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
- Thyroid Center, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
- Department of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Corinna Wicke
- Thyroid Center, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
| | - Caroline Mona
- Division of Endocrinology, Diabetes and Clinical Nutrition, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
| | - Klaus Strobel
- Thyroid Center, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
- Division of Radiology and Nuclear Medicine, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
| | - Werner Müller
- Thyroid Center, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
- Division of Otorhinolaryngology and Head and Neck Surgery, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
| | - Jürg Metzger
- Division of Visceral Surgery, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
- Thyroid Center, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
| | - Isabelle Suter-Widmer
- Division of Endocrinology, Diabetes and Clinical Nutrition, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
| | - Christoph Henzen
- Thyroid Center, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
- Division of Endocrinology, Diabetes and Clinical Nutrition, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland
| | - Stefan Fischli
- Thyroid Center, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland.
- Division of Endocrinology, Diabetes and Clinical Nutrition, Luzerner Kantonsspital, 6000, Luzern 16, Switzerland.
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Dudoignon D, Delbot T, Cottereau AS, Dechmi A, Bienvenu M, Koumakis E, Cormier C, Gaujoux S, Groussin L, Cochand-Priollet B, Clerc J, Wartski M. 18F-fluorocholine PET/CT and conventional imaging in primary hyperparathyroidism. Diagn Interv Imaging 2022; 103:258-265. [DOI: 10.1016/j.diii.2021.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/16/2021] [Accepted: 12/06/2021] [Indexed: 11/03/2022]
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López-Mora DA, Carrió I, Flotats A. Digital PET vs Analog PET: Clinical Implications? Semin Nucl Med 2021; 52:302-311. [PMID: 34836617 DOI: 10.1053/j.semnuclmed.2021.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 10/19/2021] [Indexed: 12/17/2022]
Abstract
Positron emission tomography (PET) is a functional imaging technique introduced in 1970s. Over the years, PET was used alone but is in 2000 when the first hybrid PET/CT device was clinically introduced. Since then, PET has continuously been marked by technological developments, being the most recent one the introduction of silicon photomultipliers (SiPMs) as an alternative to standard photomultiplier tubes used in analog PET/CT systems. SiPMs, the basis for the so called digital PET/CT systems, are smaller than standard photomultiplier tubes (enabling higher spatial resolution) and provide up to 100% coverage of the crystal area, as well as high sensitivity, low noise, and fast timing resolution. SiPMs in combination with optimized acquisition and reconstruction parameters improve the localization of the annihilation events, provide high definition PET images, and offer higher sensitivity and higher diagnostic performance. This article summarizes the evidence about the superior performance of the state of the art digital PET and highlights its potential clinical implications. Digital PET opens new perspectives in the quantification and characterization of small lesions, which are mostly undetectable using analog PET systems, potentially changing patient management and improving outcomes in oncological and non-oncological diseases. Moreover, digital PET offers the possibility to reduce radiation dose and scan times which may facilitate the implementation of PET to address unmet clinical needs.
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Affiliation(s)
- Diego Alfonso López-Mora
- Nuclear Medicine Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Ignasi Carrió
- Nuclear Medicine Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Albert Flotats
- Nuclear Medicine Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
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Kersting D, Jentzen W, Fragoso Costa P, Sraieb M, Sandach P, Umutlu L, Conti M, Zarrad F, Rischpler C, Fendler WP, Herrmann K, Weber M. Silicon-photomultiplier-based PET/CT reduces the minimum detectable activity of iodine-124. Sci Rep 2021; 11:17477. [PMID: 34471170 PMCID: PMC8410931 DOI: 10.1038/s41598-021-95719-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/29/2021] [Indexed: 02/03/2023] Open
Abstract
The radioiodine isotope pair 124I/131I is used in a theranostic approach for patient-specific treatment of differentiated thyroid cancer. Lesion detectability is notably higher for 124I PET (positron emission tomography) than for 131I gamma camera imaging but can be limited for small and low uptake lesions. The recently introduced silicon-photomultiplier-based (SiPM-based) PET/CT (computed tomography) systems outperform previous-generation systems in detector sensitivity, coincidence time resolution, and spatial resolution. Hence, SiPM-based PET/CT shows an improved detectability, particularly for small lesions. In this study, we compare the size-dependant minimum detectable 124I activity (MDA) between the SiPM-based Biograph Vision and the previous-generation Biograph mCT PET/CT systems and we attempt to predict the response to 131I radioiodine therapy of lesions additionally identified on the SiPM-based system. A tumour phantom mimicking challenging conditions (derived from published patient data) was used; i.e., 6 small spheres (diameter of 3.7-9.7 mm), 9 low activity concentrations (0.25-25 kBq/mL), and a very low signal-to-background ratio (20:1). List-mode emission data (single-bed position) were divided into frames of 4, 8, 16, and 30 min. Images were reconstructed with ordinary Poisson ordered-subsets expectation maximization (OSEM), additional time-of-flight (OSEM-TOF) or TOF and point spread function modelling (OSEM-TOF+PSF). The signal-to-noise ratio and the MDA were determined. Absorbed dose estimations were performed to assess possible treatment response to high-activity 131I radioiodine therapy. The signal-to-noise ratio and the MDA were improved from the mCT to the Vision, from OSEM to OSEM-TOF and from OSEM-TOF to OSEM-TOF+PSF reconstructed images, and from shorter to longer emission times. The overall mean MDA ratio of the Vision to the mCT was 0.52 ± 0.18. The absorbed dose estimations indicate that lesions ≥ 6.5 mm with expected response to radioiodine therapy would be detectable on both systems at 4-min emission time. Additional smaller lesions of therapeutic relevance could be detected when using a SiPM-based PET system at clinically reasonable emission times. This study demonstrates that additional lesions with predicted response to 131I radioiodine therapy can be detected. Further clinical evaluation is warranted to evaluate if negative 124I PET scans on a SiPM-based system can be sufficient to preclude patients from blind radioiodine therapy.
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Affiliation(s)
- David Kersting
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany.
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany.
| | - Walter Jentzen
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Pedro Fragoso Costa
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Miriam Sraieb
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Patrick Sandach
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Lale Umutlu
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | | | - Fadi Zarrad
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Christoph Rischpler
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Wolfgang Peter Fendler
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
| | - Manuel Weber
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany
- German Cancer Consortium (DKTK, Partner Site Essen), Essen, Germany
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Whitman J, Allen IE, Bergsland EK, Suh I, Hope TA. Assessment and Comparison of 18F-Fluorocholine PET and 99mTc-Sestamibi Scans in Identifying Parathyroid Adenomas: A Metaanalysis. J Nucl Med 2021; 62:1285-1291. [PMID: 33452040 PMCID: PMC8882892 DOI: 10.2967/jnumed.120.257303] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 01/03/2021] [Indexed: 01/24/2023] Open
Abstract
Hyperparathyroidism is an endocrine disorder caused by one or more hyperfunctioning parathyroid glands. Current imaging consisting of ultrasound and 99mTc-sestamibi is imprecise, making localization difficult. 18F-fluorocholine (18F-FCH) PET has recently shown promise in presurgical localization of parathyroid adenomas. The primary aim of this study was to summarize the sensitivities and specificities of studies using 18F-FCH PET to localize hyperparathyroidism. A secondary aim was to summarize a subset of studies in which 99mTc-sestamibi scans were also used and to compare the performance of the 2 modalities. Methods: We searched the MEDLINE and EMBASE databases following the PRISMA (Preferred Reporting Items for Systematic Review and Metaanalysis) statement. Quality was assessed using the QUADAS-2 tool (Quality Assessment of Diagnostic Accuracy Studies). Twenty studies were included for quantitative assessment in our metaanalysis. A random-effects model and a hierarchic summary receiver-operating-characteristic model was used to summarize the sensitivity of 18F-FCH PET in detecting abnormal parathyroid adenomas. We used the same methodology to assess sensitivity of 99mTc-sestamibi, as a comparison to 18F-FCH PET. Results:18F-FCH PET had a high sensitivity, 0.97 (range, 0.96-0.98), for the detection of abnormal parathyroid adenomas. In the subpopulation for which both 18F-FCH and 99mTc-sestamibi were reported, 18F-FCH also had a higher sensitivity, 0.96 (0.94-0.98), than the 0.54 (0.29-0.79) reported for 99mTc-sestamibi (P < 0.001). Conclusion:18F-FCH PET demonstrates high localization accuracy in patients with hyperparathyroidism. This metaanalysis supports the use of 18F-FCH over 99mTc-sestamibi in patients with hyperparathyroidism.
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Affiliation(s)
- Julia Whitman
- Division of Hematology/Oncology, Department of Medicine, University of California San Francisco, San Francisco, California
| | - Isabel E Allen
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California
| | - Emily K Bergsland
- Division of Hematology/Oncology, Department of Medicine, University of California San Francisco, San Francisco, California
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California
| | - Insoo Suh
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - Thomas A Hope
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California;
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California; and
- Department of Radiology, San Francisco VA Medical Center, San Francisco, California
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Petranović Ovčariček P, Giovanella L, Carrió Gasset I, Hindié E, Huellner MW, Luster M, Piccardo A, Weber T, Talbot JN, Verburg FA. The EANM practice guidelines for parathyroid imaging. Eur J Nucl Med Mol Imaging 2021; 48:2801-2822. [PMID: 33839893 PMCID: PMC8263421 DOI: 10.1007/s00259-021-05334-y] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/23/2021] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Nuclear medicine parathyroid imaging is important in the identification of hyperfunctioning parathyroid glands in primary hyperparathyroidism (pHPT), but it may be also valuable before surgical treatment in secondary hyperparathyroidism (sHPT). Parathyroid radionuclide imaging with scintigraphy or positron emission tomography (PET) is a highly sensitive procedure for the assessment of the presence and number of hyperfunctioning parathyroid glands, located either at typical sites or ectopically. The treatment of pHPT is mostly directed toward minimally invasive parathyroidectomy, especially in cases with a single adenoma. In experienced hands, successful surgery depends mainly on the exact preoperative localization of one or more hyperfunctioning parathyroid adenomas. Failure to preoperatively identify the hyperfunctioning parathyroid gland challenges minimally invasive parathyroidectomy and might require bilateral open neck exploration. METHODS Over a decade has now passed since the European Association of Nuclear Medicine (EANM) issued the first edition of the guideline on parathyroid imaging, and a number of new insights and techniques have been developed since. The aim of the present document is to provide state-of-the-art guidelines for nuclear medicine physicians performing parathyroid scintigraphy, single-photon emission computed tomography/computed tomography (SPECT/CT), positron emission tomography/computed tomography (PET/CT), and positron emission tomography/magnetic resonance imaging (PET/MRI) in patients with pHPT, as well as in those with sHPT. CONCLUSION These guidelines are written and authorized by the EANM to promote optimal parathyroid imaging. They will assist nuclear medicine physicians in the detection and correct localization of hyperfunctioning parathyroid lesions.
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Affiliation(s)
- Petra Petranović Ovčariček
- EANM Thyroid Committee, Vienna, Austria
- Department of Oncology and Nuclear medicine, University Hospital Center "Sestre milosrdnice", Zagreb, Croatia
| | - Luca Giovanella
- EANM Thyroid Committee, Vienna, Austria
- Clinic for Nuclear Medicine and Competence Centre for Thyroid Diseases, Imaging Institute of Southern Switzerland, Bellinzona, Switzerland
- Clinic for Nuclear Medicine and Interdisciplinary Thyroid Centre, University Hospital and University of Zurich, Zurich, Switzerland
| | - Ignasi Carrió Gasset
- Department of Nuclear Medicine, Hospital Sant Pau and Autonomous University of Barcelona, Barcelona, Spain
| | - Elif Hindié
- Department of Nuclear Medicine, Bordeaux Hospital and University, Bordeaux, France
| | - Martin W Huellner
- Department of Nuclear Medicine, University Hospital and University of Zurich, Zurich, Switzerland
| | - Markus Luster
- EANM Thyroid Committee, Vienna, Austria
- Department of Nuclear Medicine, University Hospital Marburg, Marburg, Germany
| | - Arnoldo Piccardo
- Department of Nuclear Medicine, E.O. Ospedali Galliera, Genoa, Italy
| | - Theresia Weber
- Department of Endocrine Surgery, Katholisches Klinikum Mainz, Mainz, Germany
| | - Jean-Noël Talbot
- Nuclear Medicine, Hospital Tenon APHP and Sorbonne University, Paris, France
| | - Frederik Anton Verburg
- EANM Thyroid Committee, Vienna, Austria.
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands.
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19
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Hindié E, Schwartz P, Avram AM, Imperiale A, Sebag F, Taïeb D. Primary Hyperparathyroidism: Defining the Appropriate Preoperative Imaging Algorithm. J Nucl Med 2021; 62:3S-12S. [PMID: 34230072 DOI: 10.2967/jnumed.120.245993] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/21/2020] [Indexed: 11/16/2022] Open
Abstract
Primary hyperparathyroidism is a common and potentially debilitating endocrine disorder for which surgery is the only curative treatment. Preoperative imaging is always recommended, even in cases of conventional bilateral neck exploration, with a recognized role for 99mTc-sestamibi scintigraphy in depicting ectopic parathyroid lesions. Scintigraphy can also play a major role in guiding a targeted, minimally invasive parathyroidectomy. However, the ability to recognize multiple-gland disease (MGD) varies greatly depending on the imaging protocol used. Preoperative diagnosis of MGD is important to reduce the risks of conversion to bilateral surgery or failure. In this article we discuss imaging strategies before first surgery as well as in the case of repeat surgery for persistent or recurrent primary hyperparathyroidism. We describe a preferred algorithm and alternative options. Dual-tracer 99mTc-sestamibi/123I subtraction scanning plus neck ultrasound is the preferred first-line option. This approach should improve MGD detection and patient selection for minimally invasive parathyroidectomy. Second-line imaging procedures in case of negative or discordant first-line imaging results are presented. High detection rates can be obtained with 18F-fluorocholine PET/CT or with 4-dimensional CT. The risk of false-positive results should be kept in mind, however. Adding a contrast-enhanced arterial-phase CT acquisition to conventional 18F-fluorocholine PET/CT can be a way to improve accuracy. We also briefly discuss other localization procedures, including 11C-methionine PET/CT, MRI, ultrasound-guided fine-needle aspiration, and selective venous sampling for parathyroid hormone measurement.
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Affiliation(s)
- Elif Hindié
- Department of Nuclear Medicine, University Hospitals of Bordeaux, TRAIL, University of Bordeaux, Bordeaux, France;
| | - Paul Schwartz
- Department of Nuclear Medicine, University Hospitals of Bordeaux, TRAIL, University of Bordeaux, Bordeaux, France
| | - Anca M Avram
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, University of Michigan, Ann Arbor, Michigan
| | - Alessio Imperiale
- Nuclear Medicine and Molecular Imaging, ICANS, University Hospitals of Strasbourg, University of Strasbourg, IPHC, Strasbourg, France
| | - Frederic Sebag
- Endocrine Surgery, La Timone Hospital, Aix-Marseille University, Marseille, France; and
| | - David Taïeb
- Nuclear Medicine, La Timone Hospital, CERIMED, Aix-Marseille University, Marseille, France
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Abstract
AIM To assess if digital PET/CT improves liver lesion detectability compared to analog PET/CT in patients with known or suspected liver metastases. MATERIALS AND METHODS We prospectively included 83 cancer patients, with one or more of these conditions: history of liver metastases, clinical risk of having liver metastases or presence of suspected liver metastases on the first of the two PET/CTs. All patients were consecutively scanned on each PET/CT on the same day after a single [18F]fluorodeoxyglucose dose injection. The order of acquisition was randomly assigned. Three nuclear medicine physicians assessed both PET/CTs by counting the foci of high uptake suspicious of liver metastases. Findings were correlated with appropriate reference standards; 19 patients were excluded from the analysis due to insufficient lesion nature confirmation. The final sample consisted of 64 patients (34 women, mean age 68 ± 12 years). RESULTS As per-patient analysis, the mean number of liver lesions detected by the digital PET/CT (3.84 ± 4.25) was significantly higher than that detected by the analog PET/CT (2.91 ± 3.31); P < 0.001. Fifty-five patients had a positive PET/CT study for liver lesions. In 26/55 patients (47%), the digital PET/CT detected more lesions; 7/26 patients (27%) had detectable lesions only by the digital system and had <10 mm of diameter. Twenty-nine patients had the same number of liver lesions detected by both systems. In nine patients both PET/CT systems were negative for liver lesions. CONCLUSION Digital PET/CT offers improved detectability of liver lesions over the analog PET/CT in patients with known or suspected liver metastases.
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Giovanella L, Bacigalupo L, Treglia G, Piccardo A. Will 18F-fluorocholine PET/CT replace other methods of preoperative parathyroid imaging? Endocrine 2021; 71:285-297. [PMID: 32892309 DOI: 10.1007/s12020-020-02487-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/28/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Primary hyperparathyroidism (PHPT) is a common endocrine disorder usually due to hyperfunctioning parathyroid glands (HPs). Surgical removal of the HPs is the main treatment for PHPT, making the correct detection and localization of HPs crucial to guiding targeted and minimally invasive surgical treatment in patients with PHPT. To date, different imaging methods have been used to detect and localize HPs, including radiology, nuclear medicine, and hybrid techniques. METHODS The present work discusses the role and value of different imaging methods in PHPT and, particularly, evaluates the potential role of 18F-fluorcholine PET/CT as a "one-stop-shop" method for preoperative parathyroid localization in patients with PHPT. DISCUSSION Cervical ultrasound (US) and parathyroid scintigraphy using 99mTc-MIBI are the most commonly employed methods in clinical practice. More recently, four-dimensional computed tomography (4D CT) and positron emission tomography (PET) with radiolabeled choline have emerged as useful alternatives in cases of negative or discordant findings from first-line imaging methods. CONCLUSIONS Due to the excellent diagnostic performance of radiolabeled choline PET/CT and the low radiation burden, this technique seems to be an ideal candidate to substitute current imaging procedures including US, MIBI scintigraphy, 4D CT and MRI and perform a fast and reliable "one-stop-shop" preoperative localization of HP in patients with PHPT, including challenging cases of postoperative persistent/recurrent disease.
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Affiliation(s)
- Luca Giovanella
- Clinic for Nuclear Medicine and Molecular Imaging, Imaging Institute of Southern Switzerland, Bellinzona, Switzerland.
- Clinic for Nuclear Medicine, University Hospital and University of Zurich, Zurich, Switzerland.
| | - Lorenzo Bacigalupo
- Department of Diagnostic Imaging, Radiology and Nuclear Medicine, Ente Ospedaliero Galliera, Genova, Italy
| | - Giorgio Treglia
- Clinic for Nuclear Medicine and Molecular Imaging, Imaging Institute of Southern Switzerland, Bellinzona, Switzerland
- Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Research and Innovation Service, Academic Education, Research and Innovation Area, General Directorate, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Arnoldo Piccardo
- Department of Diagnostic Imaging, Radiology and Nuclear Medicine, Ente Ospedaliero Galliera, Genova, Italy
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Iconaru L, Spinato L, Duttmann R, Hambye A, Devriendt A, Herchuelz M, Mathey C, Karmali R, Bergmann P. A rare cause of persistent hyperparathyroidism. Clin Case Rep 2021; 9:511-515. [PMID: 33489205 PMCID: PMC7813052 DOI: 10.1002/ccr3.3568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/12/2020] [Accepted: 10/30/2020] [Indexed: 12/30/2022] Open
Abstract
In a case of patient with persistent hypercalcemia after parathyroidectomy, different imaging techniques and particularly 18F-fluorocholine PET/CT are important to localize the adenoma even in a very unusual location.
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Affiliation(s)
- Laura Iconaru
- Department of EndocrinologyCHU BrugmannUniversité Libre de BruxellesBrusselsBelgium
| | - Linda Spinato
- Department of OtorhinolaryngologyCHU BrugmannUniversité Libre de BruxellesBrusselsBelgium
| | - Ruth Duttmann
- Department of AnatomopathologyCHU BrugmannUniversité Libre de BruxellesBrusselsBelgium
| | - Anne‐Sophie Hambye
- Department of Nuclear MedicineCHU BrugmannUniversité Libre de BruxellesBrusselsBelgium
| | - Arnaud Devriendt
- Department of RadiologyCHU B←rugmannUniversité Libre de BruxellesBrusselsBelgium
| | - Maxime Herchuelz
- Department of Nuclear MedicineCHU BrugmannUniversité Libre de BruxellesBrusselsBelgium
| | - Celine Mathey
- Department of Nuclear MedicineCUB ErasmeUniversité Libre de BruxellesBrusselsBelgium
| | - Rafik Karmali
- Department of EndocrinologyCHU BrugmannUniversité Libre de BruxellesBrusselsBelgium
| | - Pierre Bergmann
- Department of Nuclear MedicineCHU BrugmannUniversité Libre de BruxellesBrusselsBelgium
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11C-Choline PET/CT vs. 99mTc-MIBI/ 123Iodide Subtraction SPECT/CT for Preoperative Detection of Abnormal Parathyroid Glands in Primary Hyperparathyroidism: A Prospective, Single-Centre Clinical Trial in 60 Patients. Diagnostics (Basel) 2020; 10:diagnostics10110975. [PMID: 33228254 PMCID: PMC7699496 DOI: 10.3390/diagnostics10110975] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In patients with primary hyperparathyroidism (PHPT) locating hyperfunctioning glands (HPGs) is crucial when planning minimally invasive surgery. Dual-isotope subtraction scintigraphy with 99mTc-MIBI/123Iodide using SPECT/CT and planar pinhole imaging (Method A) has previously shown a sensitivity >93%. However, the method is costly and time consuming and entails a high radiation dose. 11C-Choline PET/CT (Method B) is an appealing candidate method unencumbered by these disadvantages. METHODS Sixty patients with newly diagnosed PHPT participated and were scanned using both methods prior to parathyroidectomy. We investigated whether sensitivities of Method A and Method B are similar in a method-to-method comparison when using surgical findings as the true location. RESULTS At the patient level, sensitivities were (A) 0.98 (95% CI: 0.90-1.00) and (B) 1.00 (95% CI: 0.93-1.00). At the gland level, sensitivities were (A) 0.88 (95% CI: 0.78-0.94) and (B) 0.87 (95% CI: 0.76-0.92). With a non-inferiority margin of ∆ = -0.1, we found a 1-sided p-value < 0.001. CONCLUSION Our methods comparison study found that sensitivity of Method B was not inferior to Method A. We suggest that 11C-Choline PET/CT is a clinically relevant first-choice candidate for preoperative imaging of PHPT and that Method B can likely replace Method A in the near future.
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López-Mora DA, Carrió I. Advances And New Indications of PET/CT scan. Med Clin (Barc) 2020; 156:65-67. [PMID: 32620354 DOI: 10.1016/j.medcli.2020.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 11/19/2022]
Affiliation(s)
- Diego Alfonso López-Mora
- Servicio de Medicina Nuclear. Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, España.
| | - Ignasi Carrió
- Servicio de Medicina Nuclear. Hospital de la Santa Creu i Sant Pau. Universitat Autònoma de Barcelona, Barcelona, España
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