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Trimboli P, Bojunga J, Deandrea M, Frasca F, Imperiale A, Leoncini A, Paone G, Pitoia F, Rotondi M, Sadeghi R, Scappaticcio L, Treglia G, Piccardo A. Reappraising the role of thyroid scintigraphy in the era of TIRADS: A clinically-oriented viewpoint. Endocrine 2024; 85:1035-1040. [PMID: 38625504 DOI: 10.1007/s12020-024-03825-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/06/2024] [Indexed: 04/17/2024]
Abstract
Thyroid nodules (TNs) are a common entity, with the majority being benign. Therefore, employing an accurate rule-out strategy in clinical practice is essential. In the thyroid field, the current era is significantly marked by the worldwide diffusion of ultrasound (US)-based malignancy risk stratification systems of TN, usually reported as Thyroid Imaging Reporting And Data System (TIRADS). With the advent of US (and later TIRADS), the role of thyroid scintigraphy (TS) in clinical practice has gradually diminished. The authors of the present paper believe that the role of TS should be reappraised, also considering its essential role in detecting autonomously functioning thyroid nodules and its limited contribution to detecting thyroid cancers. Thus, this document aims to furnish endocrinologists, radiologists, surgeons, and nuclear medicine physicians with practical information to appropriately use TS.
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Affiliation(s)
- Pierpaolo Trimboli
- Servizio di Endocrinologia e Diabetologia, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland.
- Facoltà di Scienze Biomediche, Università della Svizzera Italiana (USI), Lugano, Switzerland.
| | - Joerg Bojunga
- Department of Medicine I, Goethe University Hospital, Theodor-Stern-Kai 7, Frankfurt am Main, Germany
| | - Maurilio Deandrea
- Endocrinology, Diabetes and Metabolism Department and Center for Thyroid Diseases, Ordine Mauriziano Hospital, Turin, Italy
| | - Francesco Frasca
- Endocrinology Section, Department of Clinical and Experimental Medicine, Garibaldi Nesima Hospital, University of Catania, Catania, Italy
| | - Alessio Imperiale
- Nuclear Medicine and Molecular Imaging, Institut de Cancérologie de Strasbourg Europe (ICANS), Strasbourg University Hospitals, Strasbourg, France
- Molecular Imaging, DRHIM, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR7178, CNRS, University of Strasbourg, Strasbourg, France
| | - Andrea Leoncini
- Servizio di Radiologia e Radiologia Interventistica, Istituto di Imaging Della Svizzera Italiana (IIMSI), Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
| | - Gaetano Paone
- Facoltà di Scienze Biomediche, Università della Svizzera Italiana (USI), Lugano, Switzerland
- Clinic of Nuclear Medicine, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
| | - Fabian Pitoia
- Head Thyroid Section, Division of Endocrinology, Hospital de Clinicas, University of Buenos Aires, Viamonte, Argentina
| | - Mario Rotondi
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
- Unit of Endocrinology and Metabolism, Laboratory for Endocrine Disruptors, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Ramin Sadeghi
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Lorenzo Scappaticcio
- Unit of Endocrinology and Metabolic Diseases, AOU University of Campania "Luigi Vanvitelli", Naples, Italy
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Giorgio Treglia
- Facoltà di Scienze Biomediche, Università della Svizzera Italiana (USI), Lugano, Switzerland
- Clinic of Nuclear Medicine, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale (EOC), Bellinzona, Switzerland
- Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Arnoldo Piccardo
- Department of Nuclear Medicine, E.O. "Ospedali Galliera", Genoa, Italy
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Teodoriu L, Ungureanu MC, Matei M, Grierosu I, Saviuc AI, Wael J, Ivanov I, Dragos L, Danila R, Cristian V, Costandache MA, Iftene A, Preda C, Stefanescu C. BRAF Detection in FNAC Combined with Semi-Quantitative 99mTc-MIBI Technique and AI Model, an Economic and Efficient Predicting Tool for Malignancy in Thyroid Nodules. Diagnostics (Basel) 2024; 14:1398. [PMID: 39001288 PMCID: PMC11241294 DOI: 10.3390/diagnostics14131398] [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: 06/07/2024] [Revised: 06/22/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024] Open
Abstract
BACKGROUND Technology allows us to predict a histopathological diagnosis, but the high costs prevent the large-scale use of these possibilities. The current liberal indication for surgery in benign thyroid conditions led to a rising frequency of incidental thyroid carcinoma, especially low-risk papillary micro-carcinomas. METHODS We selected a cohort of 148 patients with thyroid nodules by ultrasound characteristics and investigated them by fine needle aspiration cytology (FNAC)and prospective BRAF collection for 70 patients. Also, we selected 44 patients with thyroid nodules using semi-quantitative functional imaging with an oncological, 99mTc-methoxy-isobutyl-isonitrile (99mTc-MIBI) radiotracer. RESULTS Following a correlation with final histopathological reports in patients who underwent thyroidectomy, we introduced the results in a machine learning program (AI) in order to obtain a pattern. For semi-quantitative functional visual pattern imaging, we found a sensitivity of 33%, a specificity of 66.67%, an accuracy of 60% and a negative predicting value (NPV) of 88.6%. For the wash-out index (WOind), we found a sensitivity of 57.14%, a specificity of 50%, an accuracy of 70% and an NPV of 90.06%.The results of BRAF in FNAC included 87.50% sensitivity, 75.00% specificity, 83.33% accuracy, 75.00% NPV and 87.50% PPV. The prevalence of malignancy in our small cohort was 11.4%. CONCLUSIONS We intend to continue combining preoperative investigations such as molecular detection in FNAC, 99mTc-MIBI scanning and AI training with the obtained results on a larger cohort. The combination of these investigations may generate an efficient and cost-effective diagnostic tool, but confirmation of the results on a larger scale is necessary.
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Affiliation(s)
- Laura Teodoriu
- Endocrinology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Maria-Christina Ungureanu
- Endocrinology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Mioara Matei
- Preventive Medicine and Interdisciplinarity Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Irena Grierosu
- Biophysics and Medical Physics-Nuclear Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Alexandra Iuliana Saviuc
- Biophysics and Medical Physics-Nuclear Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Jalloul Wael
- Biophysics and Medical Physics-Nuclear Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Iuliu Ivanov
- Center of Fundamental Research and Experimental Development in Translational Medicine, Regional Institute of Oncology, 700483 Iasi, Romania
| | - Loredana Dragos
- Center of Fundamental Research and Experimental Development in Translational Medicine, Regional Institute of Oncology, 700483 Iasi, Romania
| | - Radu Danila
- Department of Surgery, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Velicescu Cristian
- Department of Surgery, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | | | - Adrian Iftene
- Faculty of Computer Science, "Alexandru Ioan Cuza" University, 700506 Iasi, Romania
| | - Cristina Preda
- Endocrinology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
| | - Cipriana Stefanescu
- Biophysics and Medical Physics-Nuclear Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700111 Iasi, Romania
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Ren X, Zhang J, Song Z, Li Q, Zhang D, Li X, Yu J, Li Z, Wen Y, Zeng D, Zhang X, Tang Z. Detection of malignant lesions in cytologically indeterminate thyroid nodules using a dual-layer spectral detector CT-clinical nomogram. Front Oncol 2024; 14:1357419. [PMID: 38863637 PMCID: PMC11165073 DOI: 10.3389/fonc.2024.1357419] [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: 12/18/2023] [Accepted: 05/02/2024] [Indexed: 06/13/2024] Open
Abstract
Purpose To evaluate the capability of dual-layer detector spectral CT (DLCT) quantitative parameters in conjunction with clinical variables to detect malignant lesions in cytologically indeterminate thyroid nodules (TNs). Materials and methods Data from 107 patients with cytologically indeterminate TNs who underwent DLCT scans were retrospectively reviewed and randomly divided into training and validation sets (7:3 ratio). DLCT quantitative parameters (iodine concentration (IC), NICP (IC nodule/IC thyroid parenchyma), NICA (IC nodule/IC ipsilateral carotid artery), attenuation on the slope of spectral HU curve and effective atomic number), along with clinical variables, were compared between benign and malignant cohorts through univariate analysis. Multivariable logistic regression analysis was employed to identify independent predictors which were used to construct the clinical model, DLCT model, and combined model. A nomogram was formulated based on optimal performing model, and its performance was assessed using receiver operating characteristic curve, calibration curve, and decision curve analysis. The nomogram was subsequently tested in the validation set. Results Independent predictors associated with malignant TNs with indeterminate cytology included NICP in the arterial phase, Hashimoto's Thyroiditis (HT), and BRAF V600E (all p < 0.05). The DLCT-clinical nomogram, incorporating the aforementioned variables, exhibited superior performance than the clinical model or DLCT model in both training set (AUC: 0.875 vs 0.792 vs 0.824) and validation set (AUC: 0.874 vs 0.792 vs 0.779). The DLCT-clinical nomogram demonstrated satisfactory calibration and clinical utility in both training set and validation set. Conclusion The DLCT-clinical nomogram emerges as an effective tool to detect malignant lesions in cytologically indeterminate TNs.
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Affiliation(s)
- Xiaofang Ren
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Jiayan Zhang
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Zuhua Song
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Qian Li
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Dan Zhang
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Xiaojiao Li
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Jiayi Yu
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Zongwen Li
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Youjia Wen
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Dan Zeng
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Xiaodi Zhang
- Department of Clinical and Technical Support, Philips Healthcare, Chengdu, China
| | - Zhuoyue Tang
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Radiology, Chongqing General Hospital, Chongqing, China
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Abou Karam G, Malhotra A. PET/CT May Assist in Avoiding Pointless Thyroidectomy in Indeterminate Thyroid Nodules: A Narrative Review. Cancers (Basel) 2023; 15:cancers15051547. [PMID: 36900338 PMCID: PMC10000406 DOI: 10.3390/cancers15051547] [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: 01/21/2023] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023] Open
Abstract
Indeterminate thyroid nodules (ITN) are commonly encountered among the general population, with a malignancy rate of 10 to 40%. However, many patients may be overtreated with futile surgery for benign ITN. To avoid unnecessary surgery, PET/CT scan is a possible alternative to help differentiate between benign and malignant ITN. In this narrative review, the major results and limitations of the most recent studies on PET/CT efficacy (from PET/CT visual assessment to quantitative PET parameters and recent radiomic features analysis) and on cost-effectiveness (compared to other alternatives (such as surgery)) are presented. PET/CT can reduce futile surgery with visual assessment (around 40%; if ITN ≥ 10 mm). Moreover, PET/CT conventional parameters and radiomic features extracted from PET/CT imaging can be associated together in a predictive model to rule out malignancy in ITN, with a high NPV (96%) when certain criteria are met. Even though promising results were obtained in these recent PET/CT studies, further studies are needed to enable PET/CT to become the definitive diagnostic tool once a thyroid nodule is identified as indeterminate.
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Affiliation(s)
- Gaby Abou Karam
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, 333 Cedar St., New Haven, CT 06510, USA
| | - Ajay Malhotra
- Section of Neuroradiology, Department of Radiology and Biomedical Imaging, Yale School of Medicine, 333 Cedar St., New Haven, CT 06510, USA
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, 789 Howard Ave, New Haven, CT 06519, USA
- Correspondence: ; Tel.: +1-(203)-785-5102; Fax: +1-(203)-737-1077
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Thuillier P, Benisvy D, Ansquer C, Corvilain B, Mirallié E, Taïeb D, Borson-Chazot F, Lussey-Lepoutre C. SFE-AFCE-SFMN 2022 Consensus on the management of thyroid nodules : What is the role of functional imaging and isotopic treatment? ANNALES D'ENDOCRINOLOGIE 2022; 83:401-406. [PMID: 36273578 DOI: 10.1016/j.ando.2022.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The SFE-AFCE-SFMN 2022 consensus deals with the management of thyroid nodules, a condition that is a frequent reason for consultation in endocrinology. In more than 90% of cases, patients are euthyroid, with benign non-progressive nodules that do not warrant specific treatment. The clinician's objective is to detect malignant thyroid nodules at risk of recurrence and death, toxic nodules responsible for hyperthyroidism or compressive nodules warranting treatment. The diagnosis and treatment of thyroid nodules requires close collaboration between endocrinologists, nuclear medicine physicians and surgeons, but also involves other specialists. Therefore, this consensus statement was established jointly by 3 societies: the French Society of Endocrinology (SFE), French Association of Endocrine Surgery (AFCE) and French Society of Nuclear Medicine (SFMN); the various working groups included experts from other specialties (pathologists, radiologists, pediatricians, biologists, etc.). This section deals with the role of thyroid scintigraphy in the diagnosis of autonomous thyroid nodules, nuclear medicine in nodules with indeterminate cytology and iodine treatment for autonomous thyroid nodules.
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Affiliation(s)
- Philippe Thuillier
- Service d'Endocrinologie, Diabétologie et Maladies Métaboliques, CHRU de Brest, Brest, France
| | - Danielle Benisvy
- Service de Médecine Nucléaire, Centre Antoine Lacassagne, Nice, France
| | - Catherine Ansquer
- Service de Médecine Nucléaire, Hôtel Dieu, CHU de Nantes, Nantes, France
| | - Bernard Corvilain
- Department of Endocrinology, Hôpital Érasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Eric Mirallié
- Nantes Université, CHU Nantes, Institut des Maladies de l'Appareil Digestif (IMAD), Chirurgie Cancérologique, Digestive et Endocrinienne, Inserm CIC 1413, 44000 Nantes, France
| | - David Taïeb
- Université Aix-Marseille, APHM, CHU la Timone, Médecine Nucléaire, 264 Rue Saint-Pierre, 13005 Marseille Cedex 05, France
| | - Françoise Borson-Chazot
- Fédération d'Endocrinologie, Groupement Hospitalier Est, Hospices Civils de Lyon, Lyon, France; INSERM U1290, Université Claude Bernard Lyon 1, Lyon, France
| | - Charlotte Lussey-Lepoutre
- Sorbonne Université, Service de Médecine Nucléaire, Hôpital Pitié-Salpêtrière, APHP, Inserm U970, Paris, France.
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Giovanella L, Avram AM, Ovčariček PP, Clerc J. Thyroid functional and molecular imaging. Presse Med 2022; 51:104116. [PMID: 35124101 DOI: 10.1016/j.lpm.2022.104116] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 12/02/2021] [Accepted: 01/28/2022] [Indexed: 12/16/2022] Open
Abstract
Radioiodine uptake (RAIU) test with iodine-123 (Na[123I]I) or iodine-131 (Na[131I]I) enables accurate evaluation and quantification of iodine uptake and kinetics within thyroid cells. Thyroid Scintigraphy (TS) employing Na[123I]I or 99mTc-pertechnetate (Na[99mTc]TcO4) provides information regarding the function and topographical distribution of thyroid cells activity, including detection and localization of ectopic thyroid tissue. Destructive thyrotoxicosis is characterized by low RAIU with scintigraphically reduced radiotracer activity in the thyroid tissue, while productive thyrotoxicosis (i.e. hyperthyroidism "stricto sensu") is characterized by high RAIU with scintigraphically diffuse (i.e. Graves' Disease, GD and diffuse thyroid autonomy) or focal (i.e. autonomously functioning thyroid nodules, AFTN) overactivity. Accordingly, RAIU and/or TS are widely used to differentiate different causes of thyrotoxicosis. In addition, several radiopharmaceuticals are also available to help differentiate benign from malignant thyroid nodules and inform clinical decision-making: scintigraphic identification of AFTNs obviate fine-needle aspiration (FNA) biopsy, and [99mTc]Tc-hexakis-(2‑methoxy-2-isobutyl isonitrile ([99mTc]Tc-MIBI) and/or 18F-fluoro-d-glucose ([18F]FDG) may complement the work-up of cytologically indeterminate "cold" nodules for reducing the need for diagnostic lobectomies/thyroidectomies. Finally, RAIU studies are also useful for calculating the administered therapeutic activity of Na[131I]I to treat hyperthyroidism and euthyroid multinodular goiter. All considered, thyroid molecular imaging allows functional characterization of different thyroid diseases, even before clinical symptoms become manifest, and remains integral to the management of such conditions. Our present paper summarizes basic concepts, clinical applications, and potential developments of thyroid molecular imaging in patients affected by thyrotoxicosis and thyroid nodules.
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Affiliation(s)
- Luca Giovanella
- Clinic for Nuclear Medicine and Molecular Imaging, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland; Clinic for Nuclear Medicine, University Hospital and University of Zurich, Zurich, Switzerland.
| | - Anca M Avram
- Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI, USA; Division of Endocrinology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Petra Petranović Ovčariček
- Department of Oncology and Nuclear Medicine, University Hospital Center "Sestre milosrdnice", Zagreb, Croatia
| | - Jerome Clerc
- Department of Nuclear Medicine, Cochin Hospital, Assistance Publique Hôpitaux de Paris, DMU Imagina, University of Paris France
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Sepehrizadeh T, Jong I, DeVeer M, Malhotra A. PET/MRI in paediatric disease. Eur J Radiol 2021; 144:109987. [PMID: 34649143 DOI: 10.1016/j.ejrad.2021.109987] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 12/17/2022]
Abstract
Nuclear medicine and molecular imaging have a small but growing role in the management of paediatric and neonatal diseases. During the past decade, combined PET/MRI has emerged as a clinically important hybrid imaging modality in paediatric medicine due to diagnostic advantages and reduced radiation exposure compared to alternative techniques. The applications for nuclear medicine, radiopharmaceuticals and combined PET/MRI in paediatric diagnosis is broadly similar to adults, however there are some key differences. There are a variety of clinical applications for PET/MRI imaging in children including, but not limited to, oncology, neurology, cardiovascular, infection and chronic inflammatory diseases, and in renal-urological disorders. In this article, we review the applications of PET/MRI in paediatric and neonatal imaging, its current role, advantages and disadvantages over other hybrid imaging techniques such as PET/CT, and its future applications. Overall, PET/MRI is a powerful imaging technology in diagnostic medicine and paediatric diseases. Higher soft tissue contrasts and lower radiation dose of the MRI makes it the superior technology compared to other conventional techniques such as PET/CT or scintigraphy. However, this relatively new hybrid imaging has also some limitations. MRI based attenuation correction remains a challenge and although methodologies have improved significantly in the last decades, most remain under development.
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Affiliation(s)
| | - Ian Jong
- Department of diagnostic imaging, Monash Health, Melbourne, Australia
| | - Michael DeVeer
- Monash Biomedical Imaging, Monash University, Melbourne, Australia
| | - Atul Malhotra
- Monash Newborn, Monash Children's Hospital, Melbourne, Australia; Department of Paediatrics, Monash University, Melbourne, Australia
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Lin WC, Tung YC, Chang YH, Luo SD, Chiang PL, Huang SC, Chen WC, Chou CK, Su YY, Chen WC, Chi SY, Baek JH. Radiofrequency ablation for treatment of thyroid follicular neoplasm with low SUV in PET/CT study. Int J Hyperthermia 2021; 38:963-969. [PMID: 34154505 DOI: 10.1080/02656736.2021.1912414] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES To evaluate the feasibility of radiofrequency ablation (RFA) on follicular neoplasm with low standard uptake value (SUV) in a Positron emission tomography (PET/CT) study. METHODS From January 2018 to July 2019, 86 consecutive patients were diagnosed with follicular neoplasm. Of the patients, 28 with PET/CT scans were enrolled in this study. All patients received ultrasound, fine/core needle aspiration, and PET/CT scan prior to treatment. In accordance with previous studies, we recommended 6 patients who had follicular neoplasm with SUVmax ≥5 undergo surgical resection due to an elevated suspicion of malignancy. For 22 patients SUVmax <5, RFA was performed using the moving shot technique. Ultrasound was performed 6 to 12 months after each procedure. RESULTS Statistically significant volume reductions during follow-up between values prior to RFA and 12 months post RFA were demonstrated (12.6 ± 20.9 vs. 2.4 ± 3.0 cm3, p < 0.001). Volume reduction ratios at 6-12 months (mean: 10.1 months) after RFA were 73.3% ± 17.7%. One patient presented with vocal cord palsy and recovered within 3 months after RFA. No postprocedural hypothyroidism occurred in the RFA patients. CONCLUSIONS By using PET/CT, we can select patients with low SUV follicular neoplasm. RFA offers a safe and feasible alternative treatment option for patients unsuitable or unwilling to undergo surgery.KEY POINTSBy using positron emission tomography-computed tomography, we can distinguish low SUV follicular neoplasm for radiofrequency ablation.For low SUV follicular neoplasm, RF ablation offers a safe and effective alternative treatment option for patients unsuitable or unwilling to undergo surgery.
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Affiliation(s)
- Wei-Che Lin
- Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu-Cheng Tung
- Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yen-Hsiang Chang
- Department of Nuclear Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Sheng-Dean Luo
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Pi-Ling Chiang
- Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shun Chen Huang
- Department of Pathology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wei-Chih Chen
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chen-Kai Chou
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yan-Ye Su
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wen-Chieh Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shun-Yu Chi
- Department of Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Jung Hwan Baek
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Giovanella L, Avram A, Clerc J. Molecular Imaging for Thyrotoxicosis and Thyroid Nodules. J Nucl Med 2021; 62:20S-25S. [PMID: 34230069 DOI: 10.2967/jnumed.120.246017] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/21/2020] [Indexed: 12/14/2022] Open
Abstract
After exclusion of exogenous iodine overload, radioiodine uptake (RAIU) testing with 123I or 131I enables the accurate evaluation and quantification of iodine uptake and kinetics within thyroid cells. In addition, scintigraphic evaluation with 123I or 99mTc-pertechnetate (99mTc04-) provides the topographic distribution of thyroid cell activity and allows the detection and localization of ectopic thyroid tissue. Destructive thyrotoxicosis is characterized by abolished or reduced uptake whereas productive thyrotoxicosis (i.e., hyperthyroidism "sensu strictu") is characterized by high RAIU with scintigraphically diffuse (i.e., Graves disease and diffuse thyroid autonomy) or focal (i.e., autonomously functioning thyroid nodules [AFTN]) overactivity. Accordingly, RAIU or thyroid scintigraphy are widely used to differentiate different causes of thyrotoxicosis. In addition, several radiopharmaceuticals are also available to help in differentiating benign from malignant thyroid nodules and inform clinical decision making. In fact, AFTNs can be safely excluded from fine-needle aspiration biopsy while either 99mTc-methoxyisobutylisonitrile (MIBI) and 18F-FDG may complement the work-up of cytologically indeterminate cold nodules and contribute to reducing the need for diagnostic lobectomies/thyroidectomies. Finally, RAIU studies are also useful for calculating the administered therapeutic activity of 131I to treat hyperthyroidism and euthyroid multinodular goiter. All considered, thyroid molecular imaging allows us to characterize molecular/functional aspects of different thyroid diseases, even before clinical symptoms become manifest and remains integral to properly managing such conditions. Our present paper summarizes basic concepts, clinical applications, and potential developments of thyroid molecular imaging in patients affected by thyrotoxicosis and thyroid nodules.
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Affiliation(s)
- Luca Giovanella
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Bellinzona, Switzerland;
- Clinic for Nuclear Medicine, University Hospital and University of Zurich, Zurich, Switzerland
| | - Anca Avram
- Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, Michigan; and
| | - Jerome Clerc
- Department of Nuclear Medicine, Cochin Hospital, Assistance Publique Hôpitaux de Paris, DMU Imagina, University of Paris, Paris, France
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Ciappuccini R, Licaj I, Lasne-Cardon A, Babin E, de Raucourt D, Blanchard D, Bastit V, Saguet-Rysanek V, Lequesne J, Peyronnet D, Grellard JM, Clarisse B, Bardet S. 18F-Fluorocholine Positron Emission Tomography/Computed Tomography is a Highly Sensitive but Poorly Specific Tool for Identifying Malignancy in Thyroid Nodules with Indeterminate Cytology: The Chocolate Study. Thyroid 2021; 31:800-809. [PMID: 33183159 PMCID: PMC8110014 DOI: 10.1089/thy.2020.0555] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background: Refining the risk of malignancy in patients presenting with thyroid nodules with indeterminate cytology (IC) is a critical challenge. We investigated the performances of 18F-fluorocholine (FCH) positron emission tomography/computed tomography (PET/CT) to predict malignancy. Methods: Between May 2016 and March 2019, 107 patients presenting with a thyroid nodule ≥15 mm with IC and eligible for surgery were included in this prospective study. Head-and-neck PET/CT acquisitions were performed 20 and 60 minutes after injection of 1.5 MBq/kg of FCH. PET/CT acquisition was scored positive when maximal standardized uptake value in the IC nodule was higher than in the thyroid background. Pathology was the gold standard for diagnosis. Results: At pathology, 19 (18%) nodules were malignant, 87 were benign, and one was a noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). Sensitivity, specificity, accuracy, positive-predictive value (PPV), and negative-predictive value (NPV) of FCH PET/CT in detecting cancer or NIFTP were 90%, 50%, 55%, 29%, and 96% at 20 minutes and 85%, 49%, 67%, 28%, and 94% at 60 minutes, respectively. Higher specificity (58% vs. 33%, p = 0.01) was observed in nononcocytic (n = 72) than in oncocytic IC nodules (n = 35). The pre-PET/CT probability of cancer or NIFTP in Bethesda III-IV nodules was 11% and the post-PET/CT probability was 19% in PET-positives and 0% in PET-negatives. In retrospective analysis, 42% of surgeries would have been unnecessary after PET/CT and 81% before (p < 0.001), resulting in a hypothetical 48% reduction (95% confidence interval [32-64]). Conclusions: FCH PET/CT offers high NPV to reliably exclude cancer in PET-negative IC nodules, but suffers from low PPV, particularly in those with oncocytic cytology. ClinicalTrials.gov identifier: NCT02784223.
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Affiliation(s)
- Renaud Ciappuccini
- Department of Nuclear Medicine and Thyroid Unit, François Baclesse Cancer Centre, Caen, France
- INSERM 1086 ANTICIPE, Caen University, Caen, France
- Address correspondence to: Renaud Ciappuccini, MD, Department of Nuclear Medicine and Thyroid Unit, François Baclesse Cancer Centre, 3 Avenue Général Harris, Caen, F-14000, France
| | - Idlir Licaj
- Department of Clinical Research and François Baclesse Cancer Centre, Caen, France
| | - Audrey Lasne-Cardon
- Department of Head and Neck Surgery, François Baclesse Cancer Centre, Caen, France
| | - Emmanuel Babin
- INSERM 1086 ANTICIPE, Caen University, Caen, France
- Department of Head and Neck Surgery, University Hospital, Caen, France
| | | | - David Blanchard
- Department of Head and Neck Surgery, Hôpital Saint-Martin, Caen, France
| | - Vianney Bastit
- Department of Head and Neck Surgery, François Baclesse Cancer Centre, Caen, France
| | | | - Justine Lequesne
- Department of Clinical Research and François Baclesse Cancer Centre, Caen, France
| | - Damien Peyronnet
- Department of Nuclear Medicine, University Hospital, Caen, France
| | - Jean-Michel Grellard
- Department of Clinical Research and François Baclesse Cancer Centre, Caen, France
| | - Bénédicte Clarisse
- Department of Clinical Research and François Baclesse Cancer Centre, Caen, France
| | - Stéphane Bardet
- Department of Nuclear Medicine and Thyroid Unit, François Baclesse Cancer Centre, Caen, France
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11
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Benderradji H, Beron A, Wémeau JL, Carnaille B, Delcroix L, Do Cao C, Baillet C, Huglo D, Lion G, Boury S, Cussac JF, Caiazzo R, Pattou F, Leteurtre E, Vantyghem MC, Ladsous M. Quantitative dual isotope 123iodine/ 99mTc-MIBI scintigraphy: A new approach to rule out malignancy in thyroid nodules. ANNALES D'ENDOCRINOLOGIE 2021; 82:83-91. [PMID: 33727116 DOI: 10.1016/j.ando.2021.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the role of dual isotope 123Iodine/99mTc-MIBI thyroid scintigraphy (IMS) in discriminating between malignant and benign lesions in indeterminate nodules using quantitative analysis methods. METHODS Thirty-five consecutive patients with thyroid nodules of indeterminate or non-diagnostic cytology and cold on 123Iodine scintigraphy (10 Bethesda I, 24 Bethesda III-IV, 1 in which cytology was impossible) underwent IMS between 2017 and 2019 with uptake quantification at two time points ahead of thyroidectomy: early and late. Images were analyzed by two blinded physicians. RESULTS Twelve nodules were malignant and 23 benign on histopathology. Mean uptake values were lower in benign than in malignant nodules at both time points: early, 8.7±4.1 versus 12.9±3.5 (P=0.005); and late, 5.3±2.7 versus 7.7±1.1 (P=0.008). Interobserver reproducibility was excellent. The intraclass correlation coefficient was 0.86 in benign and 0.92 in malignant lesions for early uptake result (ER) and 0.94 and 0.85 respectively for late uptake result (LR). The optimal LR cut-off to exclude a diagnosis of malignancy was set at 5.9 . The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of this cut-off were, respectively, 100%, 65.2%, 60%, 100% and 77.1%. CONCLUSION Despite some study limitations, quantitative analysis of 99mTc-MIBI thyroid scintigraphy had a good reproducibility, which could help to rule out malignancy in non-diagnostic or indeterminate thyroid nodules and thereby reducing the number of patients undergoing unnecessary surgery when LR is below 5.9.
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Affiliation(s)
- Hamza Benderradji
- Department of Endocrinology, Diabetology, and Metabolism, Lille University Hospital, Lille, France; Inserm, U 1172, Lille University, Lille, France.
| | - Amandine Beron
- Department of Nuclear Medicine, Lille University Hospital, Lille, France
| | - Jean-Louis Wémeau
- Department of Endocrinology, Diabetology, and Metabolism, Lille University Hospital, Lille, France
| | - Bruno Carnaille
- Department of General and Endocrine Surgery, Lille University Hospital, Lille, France
| | - Laurent Delcroix
- Department of Nuclear Medicine, Lille University Hospital, Lille, France
| | - Christine Do Cao
- Department of Endocrinology, Diabetology, and Metabolism, Lille University Hospital, Lille, France
| | - Clio Baillet
- Department of Nuclear Medicine, Lille University Hospital, Lille, France
| | - Damien Huglo
- Department of Nuclear Medicine, Lille University Hospital, Lille, France; Inserm, U 1189, Lille University, Lille, France
| | - Georges Lion
- Department of Nuclear Medicine, Lille University Hospital, Lille, France
| | - Samuel Boury
- Department of Radiology, Lille University Hospital, Lille, France
| | | | - Robert Caiazzo
- Department of General and Endocrine Surgery, Lille University Hospital, Lille, France; Inserm, U1190-EGID, Lille University, Lille, France
| | - François Pattou
- Department of General and Endocrine Surgery, Lille University Hospital, Lille, France; Inserm, U1190-EGID, Lille University, Lille, France
| | - Emmanuelle Leteurtre
- Department of Pathology, Lille University Hospital, Lille, France; Inserm, CNRS, UMR9020, U1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille University, Lille, France
| | - Marie-Christine Vantyghem
- Department of Endocrinology, Diabetology, and Metabolism, Lille University Hospital, Lille, France; Inserm, U1190-EGID, Lille University, Lille, France
| | - Miriam Ladsous
- Department of Endocrinology, Diabetology, and Metabolism, Lille University Hospital, Lille, France; Department of Endocrinology, Valenciennes General Hospital, Valenciennes, France
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12
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Donohoe KJ, Aloff J, Avram AM, Bennet KG, Giovanella L, Greenspan B, Gulec S, Hassan A, Kloos RT, Solórzano CC, Stack BC, Tulchinsky M, Tuttle RM, Van Nostrand D, Wexler JA. Appropriate Use Criteria for Nuclear Medicine in the Evaluation and Treatment of Differentiated Thyroid Cancer. J Nucl Med 2020; 61:375-396. [PMID: 32123131 DOI: 10.2967/jnumed.119.240945] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 12/12/2019] [Indexed: 12/22/2022] Open
Affiliation(s)
- Kevin J Donohoe
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
| | | | - Anca M Avram
- American College of Nuclear Medicine, Reston, Virginia
| | - K G Bennet
- American College of Nuclear Medicine, Reston, Virginia
| | | | | | - Seza Gulec
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
| | - Aamna Hassan
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
| | | | | | | | - Mark Tulchinsky
- Society of Nuclear Medicine and Molecular Imaging, Reston, Virginia
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13
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Piccardo A, Puntoni M, Dezzana M, Bottoni G, Foppiani L, Marugo A, Catrambone U, Ugolini M, Sola S, Gatto M, Treglia G, Giovanella L, Trimboli P. Indeterminate thyroid nodules. The role of 18F-FDG PET/CT in the "era" of ultrasonography risk stratification systems and new thyroid cytology classifications. Endocrine 2020; 69:553-561. [PMID: 32124261 DOI: 10.1007/s12020-020-02239-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 02/18/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE To evaluate the reliability of 18F-FDG PET/CT in distinguishing differentiated thyroid cancers (DTCs) and follicular neoplasms (FNs) from nodular hyperplasias (NH) in thyroid nodules with indeterminate cytology according to the Italian consensus for the classification and reporting of thyroid cytology (ICCRTC). We also tested whether the 18F-FDG PET/CT result was an independent risk factor for DTCs or FNs when sex, age, nodule dimensions, the European Thyroid Imaging and Reporting Data System (EU-TIRADS) and ICCRTC were considered. METHODS We evaluated all patients with thyroid nodules and indeterminate cytology from September 2015 to May 2019; nodules were classified as low risk (TIR3A) and high risk (TIR3B) according to the ICCRTC. Neck ultrasonography features according to EU-TIRADS were re-evaluated and 18F-FDG PET/CT performed. All these patients were surgically treated. RESULTS We included 111 patients; 67 nodules were classified as TIR3A and 44 as TIR3B. Overall, we found 27 DTCs, 57 NHs and 27 FNs. Among 73 FDG-negative nodules, we found four low-risk papillary thyroid cancers. All follicular thyroid cancers were identified by 18F-FDG-PET/CT. All TIR3A with low-risk US and negative 18F-FDG-PET/CT were NH. In TIR3A nodules, the sensitivity, specificity, negative and positive predictive values (NPV, PPV) of 18F-FDG PET/CT and EU-TIRADS for DTCs were 77.8%, 41.4%, 92.3%, 17.1% and 66.7%, 56.9%, 91.7%, 19.4%, respectively. In TIR3B nodules, the sensitivity, specificity, NPV and PPV of 18F-FDG PET/CT and EU-TIRADS for DTCs were 88.9%, 38.5%, 83.3%, 50% and 88.2%, 58.3%, 87.5%, 60%, respectively. On multivariate analysis, 18F-FDG-PET/CT (OR 9.04), ICCRTC (O.R. 7.57) and EU-TIRADS (OR 4.41) were all independent risk factors associated to DTCs and FNs. CONCLUSION 18F-FDG-PET/CT is a reliable rule-out test for DTC even in thyroid nodules with indeterminate high-risk results. In this subgroup, PPV also tends to be considerable. 18F-FDG-PET/CT results, ICCRTC and EU-TIRADS proved independent risk factors associated to DTCs and FNs.
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Affiliation(s)
- Arnoldo Piccardo
- Department of Nuclear Medicine, Galliera Hospital, Mura delle Cappuccine 14, 16128, Genoa, Italy.
| | - Matteo Puntoni
- Clinical Trial Research Unit, Galliera Hospital, Genoa, Italy
| | - Marih Dezzana
- Department of Histopathology, Galliera Hospital, Genoa, Italy
| | - Gianluca Bottoni
- Department of Nuclear Medicine, Galliera Hospital, Mura delle Cappuccine 14, 16128, Genoa, Italy
| | - Luca Foppiani
- Department of Internal Medicine, Galliera Hospital, Genoa, Italy
| | | | | | - Martina Ugolini
- Department of Nuclear Medicine, Galliera Hospital, Mura delle Cappuccine 14, 16128, Genoa, Italy
| | - Simona Sola
- Department of Histopathology, Galliera Hospital, Genoa, Italy
| | - Martina Gatto
- Department of Nuclear Medicine, Galliera Hospital, Mura delle Cappuccine 14, 16128, Genoa, Italy
| | - Giorgio Treglia
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- Health Technology Assessment Unit, General Directorate, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital, Lausanne, Switzerland
| | - Luca Giovanella
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Pierpaolo Trimboli
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
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14
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Qichang W, Jinming S, Lu L, Bin J, Renjie W, Xiuying Z. Comparison of 18F-FDG-PET and 18F-FDG-PET/CT for the diagnostic performance in thyroid nodules with indeterminate cytology: A meta-analysis. Medicine (Baltimore) 2020; 99:e20446. [PMID: 32481449 DOI: 10.1097/md.0000000000020446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUNDS We performed a meta-analysis to compare F-FDG-PET and F-FDG-PET/CT for the diagnostic performance in thyroid nodules with indeterminate cytology by Bethesda classification. METHODS PubMed and Embase databases were searched for eligible studies from the earliest available date of indexing through September 2019. Only studies with clearly stated histopathology confirmation were included. Publication bias was assessed by Deeks funnel plot. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, positive predictive value, negative predictive value, and diagnostic odds ratio was determined by random-effect analysis, respectively. All diagnostic estimate indexes were determined separately for PET alone and PET/CT and were compared pair-wisely using Z-test. RESULTS We included 214 patients from five PET alone studies and 420 patients from 8 PET/CT studies in this meta-analysis. The range of the prevalence of malignancy was 11% to 27% for PET alone studies (Median, 20%) and 4% to 50% for PET/CT studies (Median, 24%). The sensitivity (0.95 vs 0.73, P < .01), negative likelihood ratio (0.20 vs 0.53, P = .04) and negative predictive value (0.99 vs 0.91, P < .01) of PET alone are significantly better than those of PET/CT. For PET/CT, Fagan nomogram indicated that when the pre-test probability was set at 24%, the negative post-test probability could decrease to 12%. CONCLUSION This meta-analysis reveals that in evaluating thyroid nodules with indeterminate cytology by Bethesda classification, the rule-out performance of F-FDG-PET is significantly better than F-FDG-PET/CT, although the latter represents a more objective and accurate technique. We hypothesize that the lack of precise localization of suspicious FDG uptake in the neck region may have contributed to this overvaluation for PET alone studies, and advocate that future studies be performed with PET/CT rather than PET alone to avoid misinterpretation and overvaluation in this scenario.
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Affiliation(s)
- Wan Qichang
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Shen Jinming
- Department of Intensive Care, Xinyu People's Hospital, Xinyu, China
| | - Li Lu
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Ji Bin
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Wang Renjie
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zheng Xiuying
- Department of Discipline Inspection, The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, China
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15
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Imaging and Imaging-Based Management of Pediatric Thyroid Nodules. J Clin Med 2020; 9:jcm9020384. [PMID: 32024056 PMCID: PMC7074552 DOI: 10.3390/jcm9020384] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 12/11/2022] Open
Abstract
Thyroid nodules are less frequent in children than adults. Childhood thyroid nodules carry specific features, including a higher risk of malignancy than nodules in adults, rendering them unique in terms of management. Subsequently, they should be considered a distinct clinical entity with specific imaging recommendations. Initial evaluation requires a thorough workup, including clinical examination, and a detailed personal and familial history to determine the presence of possible risk factors. Laboratory and radiologic evaluation play an integral part in the diagnostic algorithm, with ultrasonography (US) being the first diagnostic test in all patients. US elastography has been recently introduced as an incremental method, reducing the subjectivity of the clinical diagnosis of nodule firmness associated with increased malignancy risk. However, fine-needle aspiration biopsy (FNAB) remains the mainstay in the diagnostic work-up of thyroid nodules and is documented to be best method for differentiating benign from malignant thyroid nodules. In addition, thyroid scintigraphy provides functional imaging information, which has a role both in the diagnostic management of thyroid nodules and during follow up in malignancies. Finally, despite providing additional information in certain clinical scenarios, 18F-fludeoxyglucose Positron Emission Tomography (18F-FDG-PET), computed tomography (CT), and magnetic resonance imaging (MRI) imaging are not routinely recommended for the evaluation of patients with newly detected thyroid nodules or in all cases of thyroid cancer. The objective of this review is to summarize the concepts in imaging and imaging-based management of nodular thyroid disease in the pediatric population, acknowledging the unique features that this patient group carries and the specific approach it requires.
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16
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Castellana M, Piccardo A, Virili C, Scappaticcio L, Grani G, Durante C, Giovanella L, Trimboli P. Can ultrasound systems for risk stratification of thyroid nodules identify follicular carcinoma? Cancer Cytopathol 2020; 128:250-259. [PMID: 31899594 DOI: 10.1002/cncy.22235] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/30/2019] [Accepted: 10/15/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Ultrasound (US) risk stratification systems (RSSs) have been developed to reduce the number of unnecessary fine needle aspirations (FNAs) of thyroid nodules. These systems were designed primarily to identify papillary thyroid carcinomas, thus their performance on follicular thyroid carcinoma (FTC) is debatable. The present study was undertaken to investigate the accuracy of RSSs in selecting FTCs for FNA. METHODS Patients with FTC who underwent US examinations between 2012 and 2018 in 2 institutions were selected. US images were reviewed retrospectively, and FTCs were reclassified according to the American Association of Clinical Endocrinologist/American College of Endocrinology/Associazione Medici Endocrinologi (AACE/ACE/AME), American College of Radiology (ACR-TIRADS), 2015 American Thyroid Association, British Thyroid Association, European Thyroid Association, Korean Society of Thyroid Radiology and Korean Society of Radiology, and Thyroid Imaging Reporting and Data System (TIRADS). Risk class and indication for FNA were assessed. RESULTS Forty-five FTCs from 45 consecutive patients were included in the study. The median tumor diameter was 32 mm (range, 11-100), and ovoid isoechoic nodule with or without lobulated margins was the most frequent presentation. When FTCs were classified according to RSSs, the most common categories were intermediate and high risk, though 1 case in 3 was not classifiable. FTCs were classified as high risk/high suspicion/malignant in 11% to 74% of cases, with a statistically significant difference among the systems. FNA was indicated in 69% to 100% of cases, with good agreement among AACE/ACE/AME, ACR-TIRADS, and TIRADS. CONCLUSION Current RSSs show high performance in selecting FTCs for FNA. This result is mainly due to the dimensional RSSs cutoffs indicating FNA. On the contrary, given the reported unsuspicious echo-structural presentation of FTC and the recognized limitation of cytological assessment to detect it, caution is advised when using US to manage cytologically indeterminate nodules.
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Affiliation(s)
- Marco Castellana
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland.,Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - Arnoldo Piccardo
- Department of Nuclear Medicine, Galliera Hospital, E.O. Ospedali Galliera, Genoa, Italy
| | - Camilla Virili
- Science and Medico-Surgical Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Lorenzo Scappaticcio
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland.,Unit of Endocrinology and Metabolic Diseases, University of Campania L. Vanvitelli, Naples, Italy
| | - Giorgio Grani
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Cosimo Durante
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Luca Giovanella
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland.,Clinic for Nuclear Medicine, University Hospital and University of Zurich, Zurich, Switzerland
| | - Pierpaolo Trimboli
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
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17
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Castellana M, Trimboli P, Piccardo A, Giovanella L, Treglia G. Performance of 18F-FDG PET/CT in Selecting Thyroid Nodules with Indeterminate Fine-Needle Aspiration Cytology for Surgery. A Systematic Review and a Meta-Analysis. J Clin Med 2019; 8:jcm8091333. [PMID: 31466411 PMCID: PMC6780221 DOI: 10.3390/jcm8091333] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/16/2019] [Accepted: 08/27/2019] [Indexed: 12/17/2022] Open
Abstract
Thyroid nodules with indeterminate fine-needle aspiration cytology (FNA) represent a major challenge in clinical practice. We conducted a systematic review and meta-analysis evaluating the ability of hybrid imaging using fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) to appropriately select these nodules for surgery. PubMed, CENTRAL, Scopus, and Web of Science were searched until July 2019. Original articles reporting data on the performance of 18F-FDG PET/CT in thyroid nodules with indeterminate FNA were included. Summary operating points including 95% confidence interval values (95% CI) were estimated using a random-effects model. Out of 786 retrieved papers, eight studies evaluating 104 malignant and 327 benign thyroid nodules were included. The pooled positive and negative likelihood ratios (LR+ and LR-) and diagnostic odds ratio (DOR) of 18F-FDG PET/CT were 1.7 (95% CI: 1.4-2.0), 0.4 (95% CI: 0.2-0.7), and 3.5 (95% CI: 1.7-7.1), respectively. No heterogeneity was found for LR+ and DOR. In patients with thyroid nodules with indeterminate FNA, 18F-FDG PET/CT has a moderate ability to correctly discriminate malignant from benign lesions and could represent a reliable option to reduce unnecessary diagnostic surgeries. However, further studies using standardized criteria for interpretation are needed to confirm the reproducibility of these findings.
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Affiliation(s)
- Marco Castellana
- Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, IT-70124 Bari, Italy
| | - Pierpaolo Trimboli
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, CH-6500 Bellinzona, Switzerland
| | - Arnoldo Piccardo
- Department of Nuclear Medicine, Galliera Hospital, IT-16128 Genoa, Italy
| | - Luca Giovanella
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, CH-6500 Bellinzona, Switzerland
- Department of Nuclear Medicine, University Hospital of Zürich and University of Zürich, CH-8091 Zürich, Switzerland
| | - Giorgio Treglia
- Clinic for Nuclear Medicine and Competence Center for Thyroid Diseases, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, CH-6500 Bellinzona, Switzerland.
- Health Technology Assessment Unit, General Directorate, Ente Ospedaliero Cantonale, CH-6500 Bellinzona, Switzerland.
- Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital and University of Lausanne, CH-1011 Lausanne, Switzerland.
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18
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Giovanella L, Avram AM, Iakovou I, Kwak J, Lawson SA, Lulaj E, Luster M, Piccardo A, Schmidt M, Tulchinsky M, Verburg FA, Wolin E. EANM practice guideline/SNMMI procedure standard for RAIU and thyroid scintigraphy. Eur J Nucl Med Mol Imaging 2019; 46:2514-2525. [DOI: 10.1007/s00259-019-04472-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 07/29/2019] [Indexed: 12/15/2022]
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19
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Rager O, Radojewski P, Dumont RA, Treglia G, Giovanella L, Walter MA. Radioisotope imaging for discriminating benign from malignant cytologically indeterminate thyroid nodules. Gland Surg 2019; 8:S118-S125. [PMID: 31475099 DOI: 10.21037/gs.2019.03.06] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The risk of malignancy in thyroid nodules with indeterminate cytological classification (Bethesda III-IV) ranges from 10% to 40%, and early delineation is essential as delays in diagnosis can be associated with increased mortality. Several radioisotope imaging techniques are available for discriminating benign from malignant cytologically indeterminate thyroid nodules, and for supporting clinical decision-making. These techniques include iodine-123, technetium-99m-pertechnetate, technetium-99m-methoxy-isobutyl-isonitrile (technetium-99m-MIBI), and fluorine-18-fluorodeoxyglucose (fluorine-18-FDG). This review discusses the currently available radioisotope imaging techniques for evaluation of thyroid nodules, including the mechanism of radiotracer uptake and the indications for their use.
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Affiliation(s)
- Olivier Rager
- Nuclear Medicine Department, Geneva University Hospitals, Geneva, Switzerland.,IMGE (Imagerie Moléculaire Genève), Geneva, Switzerland
| | - Piotr Radojewski
- Nuclear Medicine Department, Geneva University Hospitals, Geneva, Switzerland
| | - Rebecca A Dumont
- Nuclear Medicine Department, Geneva University Hospitals, Geneva, Switzerland
| | - Giorgio Treglia
- Clinic of Nuclear Medicine and PET/CT Center, Ente Ospedaliero Cantonale, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Luca Giovanella
- Clinic of Nuclear Medicine and PET/CT Center, Ente Ospedaliero Cantonale, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Martin A Walter
- Nuclear Medicine Department, Geneva University Hospitals, Geneva, Switzerland
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Bongiovanni M, Bellevicine C, Troncone G, Sykiotis GP. Approach to cytological indeterminate thyroid nodules. Gland Surg 2019; 8:S98-S104. [PMID: 31475096 DOI: 10.21037/gs.2018.12.06] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The indeterminate thyroid nodules diagnosed by fine-needle aspiration cytology (FNAC)represents a problem for both cytopathologists and clinicians. The former sometimes use this diagnostic category as a sort of basket, putting in cases that they do not know exactly how to classify. The latter are faced with a highly variable risk of malignancy and consequently the management remains a challenge. On the histopathological side, the new WHO classification of tumors of the thyroid introduced the concept of tumors with uncertain and low malignant potential, and the concept of non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP), whose prognosis and management are still to be completely elucidated. While the risk of malignancy of the indeterminate diagnostic category has decreased due to the re-classification of certain types of papillary thyroid carcinomas of the follicular variant into a low malignant potential form (the NIFTP), cases diagnosed cytologically as indeterminate will probably increase in the future to avoid false positive diagnosis. Thus, the indeterminate thyroid diagnostic category still remains a challenge, both at the diagnostic level and for its management. The new version of the Bethesda system for reporting thyroid cytopathology suggests managing these patients with a repeat FNA, diagnostic lobectomy and/or molecular testing.
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Affiliation(s)
- Massimo Bongiovanni
- Service of Clinical Pathology, Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland
| | - Claudio Bellevicine
- Department of Public Health, Federico II University of Naples, Naples, Italy
| | - Giancarlo Troncone
- Department of Public Health, Federico II University of Naples, Naples, Italy
| | - Gerasimos P Sykiotis
- Service of Endocrinology, Diabetology and Metabolism, Lausanne University Hospital, Lausanne, Switzerland
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Campennì A, Trimboli P, Giovanella L. Re: "Diagnostic Performance of Technetium-99m Methoxy-Isobutyl-Isonitrile for Differentiation of Malignant Thyroid Nodules: A Systematic Review and Meta-Analysis" by Kim et al. ( Thyroid 2018;28:1339-1348). Thyroid 2019; 29:896-897. [PMID: 30892146 DOI: 10.1089/thy.2018.0712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alfredo Campennì
- 1 Nuclear Medicine Unit, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging. University of Messina, Messina, Italy
| | - Pierpaolo Trimboli
- 2 Clinic for Nuclear Medicine and Thyroid Center, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Luca Giovanella
- 2 Clinic for Nuclear Medicine and Thyroid Center, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
- 3 Medical School, University of Zürich, Zürich, Switzerland
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Trimboli P, Piccardo A, Alevizaki M, Virili C, Naseri M, Sola S, Paone G, Russ G, Giovanella L. Dedicated neck 18 F-FDG PET/CT: An additional tool for risk assessment in thyroid nodules at ultrasound intermediate risk. Clin Endocrinol (Oxf) 2019; 90:737-743. [PMID: 30740757 DOI: 10.1111/cen.13949] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 01/17/2019] [Accepted: 02/06/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Several ultrasound (US) risk stratification systems have been proposed for the assessment of thyroid nodules, and their performance was shown as good. However, the rate of nodules assessed at intermediate risk is not negligible and whether they should be submitted or not to further examination is still under debate. The present study aimed to evaluate the reliability of 18 F-FDG PET/CT in stratifying the risk of malignancy in these lesions. METHODS Two institutions participated to this retrospective study in which a dedicated 18 F-FDG PET/CT was proposed to patients having a thyroid nodule with US assessment of EU-TIRADS 4 or 5. 18 F-FDG PET/CT did not influence the diagnostic and therapeutic decision. Histology was the gold standard for all patients. RESULTS Ninety-three patients were included for the study with 48 EU-TIRADS 4 and 45 EU-TIRADS 5 nodules. Of these, 26 underwent thyroidectomy following FNAC suspicious for or consistent with malignancy, 38 for inconclusive cytology, 27 because of large goitre and 2 for high-risk lesion at US. At histology, 35 carcinomas and 58 benign lesions were found. Cancer prevalence was 16.7% in EU-TIRADS 4 and 60% in EU-TIRADS 5. Overall, 18 F-FDG PET/CT was positive in 33/35 cancers (94.5% sensitivity) and negative in 31/58 benign lesions (53.4% specificity). When considering only EU-TIRADS 4, 18 F-FDG PET/CT was positive in 7/8 cancers and negative in 20/40 benign lesions; among these, there were 36 cases with FNAC indication according to dimensional cut-off (ie >1.5 cm), and 18 F-FDG PET/CT showed 85.7% sensitivity and 41.4% specificity. CONCLUSIONS 18 F-FDG PET/CT may have a role in stratifying the cancer risk of thyroid nodules with an intermediate ultrasound assessment. More specifically, thyroid lesions classified as EU-TIRADS 4 and with no 18 F-FDG uptake could be ruled out from further examination, similar to other anamnestic and clinical suspicious factors of patients. Further prospective and cost-effectiveness studies are needed.
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Affiliation(s)
- Pierpaolo Trimboli
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Arnoldo Piccardo
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
- Department of Nuclear Medicine, E.O. Ospedali Galliera, Genoa, Italy
| | - Maria Alevizaki
- Endocrine Unit, Department of Medical Therapeutics, Alexandra Hospital, Kapodistrian University School of Medicine, Athens, Greece
| | - Camilla Virili
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Mehrdad Naseri
- Department of Nuclear Medicine, E.O. Ospedali Galliera, Genoa, Italy
| | - Simona Sola
- Department of Histopathology, Galliera Hospital, Genoa, Italy
| | - Gaetano Paone
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Gilles Russ
- Thyroid and Endocrine Tumors Unit, Institute of Endocrinology, La Pitié Salpêtrière Hospital, Sorbonne University, Paris, France
| | - Luca Giovanella
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
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Piccardo A, Trimboli P, Foppiani L, Treglia G, Ferrarazzo G, Massollo M, Bottoni G, Giovanella L. PET/CT in thyroid nodule and differentiated thyroid cancer patients. The evidence-based state of the art. Rev Endocr Metab Disord 2019; 20:47-64. [PMID: 30900067 DOI: 10.1007/s11154-019-09491-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A more conservative approach to the clinical management of thyroid nodules and differentiated thyroid cancer has recently been proposed by the 2015 ATA guidelines. In this context, fine-needle aspiration biopsy has been reserved for nodules with particular ultrasound features or dimensions that exclude low-risk thyroid lesions. Accordingly, a less aggressive surgical approach (i.e. lobectomy) has been recommended as the first-choice treatment in nodules with indeterminate cytology or in small cytologically confirmed malignant nodules. At the same time, radioactive remnant ablation has been considered only for DTC patients with concrete risks of disease persistence/relapse after thyroidectomy. In addition, further radioactive iodine therapies (RAI) have been proposed only for patients presenting unresectable and iodine-avid structural relapse. In this complex scenario, which requires attention to each clinical aspect of the patient, the introduction of accurate diagnostic tools is highly warranted. PET/CT is a very sensitive and specific diagnostic procedure that can better characterize the risk of thyroid nodules, identify DTC relapse early and predict the response to RAI. Thus, it seems essential to customize a more conservative approach to thyroid nodules and DTC patients. The aim of this review is to report the principal clinical context in which PET/CT has been used and to evaluate the evidence-based support for each diagnostic indication.
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Affiliation(s)
- Arnoldo Piccardo
- Department of Nuclear Medicine, Galliera Hospital, E.O. Ospedali Galliera, Mura delle Cappuccine 14, 16128, Genoa, Italy.
| | - Pierpaolo Trimboli
- Clinic of Nuclear Medicine and Molecular Imaging, Imaging Institute of Southern Switzerland, Lugano, Bellinzona, Switzerland
| | - Luca Foppiani
- Department of Internal Medicine, Galliera Hospital, Genoa, Italy
| | - Giorgio Treglia
- Clinic of Nuclear Medicine and Molecular Imaging, Imaging Institute of Southern Switzerland, Lugano, Bellinzona, Switzerland
- Health Technology Assessment Unit, General Directorate, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital, Lausanne, Switzerland
| | - Giulia Ferrarazzo
- Department of Nuclear Medicine, Galliera Hospital, E.O. Ospedali Galliera, Mura delle Cappuccine 14, 16128, Genoa, Italy
| | - Michela Massollo
- Department of Nuclear Medicine, Galliera Hospital, E.O. Ospedali Galliera, Mura delle Cappuccine 14, 16128, Genoa, Italy
| | - Gianluca Bottoni
- Department of Nuclear Medicine, Galliera Hospital, E.O. Ospedali Galliera, Mura delle Cappuccine 14, 16128, Genoa, Italy
| | - Luca Giovanella
- Clinic of Nuclear Medicine and Molecular Imaging, Imaging Institute of Southern Switzerland, Lugano, Bellinzona, Switzerland
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Fluorine-18-fluorodeoxyglucose positron emission tomography in thyroid nodules with indeterminate cytology: a prospective study. Nucl Med Commun 2019; 40:185-187. [PMID: 30444748 DOI: 10.1097/mnm.0000000000000946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Up to 20% of thyroid nodules subjected to fine-needle aspiration exhibit indeterminate cytology. The rate of malignancy in these nodules ranges from 10 to 40%. The objective of this prospective study was to evaluate the utility of fluorine-18-fluorodeoxyglucose (F-FDG) PET in nonautonomous thyroid nodules of more than 1 cm whose cytology is indeterminate (Bethesda categories III or IV) and that are not highly suspicious on ultrasonography. PATIENTS AND METHODS Fifty-nine patients with 63 nodules were studied. RESULTS F-FDG PET result was positive in 31 nodules. Of these, 22.6% were malignant, 25.8% were noninvasive follicular thyroid neoplasm with papillary-like nuclear features, 6.5% were tumors of uncertain malignant potential, and 45.1% were benign. F-FDG PET result was negative in 32 nodules. Of these, 3.1% were neoplasm with papillary-like nuclear features, 3.1% were tumors of uncertain malignant potential, and 93.8% were benign. CONCLUSION This study suggests a high negative predictive value of F-FDG PET in thyroid nodules of more than 1 cm whose cytology is indeterminate and that are not highly suspicious on ultrasonography.
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Luster M, Aktolun C, Amendoeira I, Barczyński M, Bible KC, Duntas LH, Elisei R, Handkiewicz-Junak D, Hoffmann M, Jarząb B, Leenhardt L, Musholt TJ, Newbold K, Nixon IJ, Smit J, Sobrinho-Simões M, Sosa JA, Tuttle RM, Verburg FA, Wartofsky L, Führer D. European Perspective on 2015 American Thyroid Association Management Guidelines for Adult Patients with Thyroid Nodules and Differentiated Thyroid Cancer: Proceedings of an Interactive International Symposium. Thyroid 2019; 29:7-26. [PMID: 30484394 DOI: 10.1089/thy.2017.0129] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The American Thyroid Association (ATA) management guidelines for patients with thyroid nodules and differentiated thyroid cancer (DTC) are highly influential practice recommendations. The latest revision appeared in 2015 ("ATA 2015"). These guidelines were developed predominantly by North American experts. European experts frequently have different perspectives, given epidemiological, technological/methodological, practice organization, and medicolegal differences between the respective regions. SUMMARY Divergent viewpoints were the focus of an invited symposium organized by the European Association of Nuclear Medicine involving 17 European thyroidologists, four ATA Guidelines Taskforce members, and an audience of 200 international experts. The group discussed the preoperative assessment of thyroid nodules, surgery and the role of pathology, radioiodine (RAI) therapy (RAIT), the assessment of initial therapy and dynamic risk stratification, and the treatment of persistent disease, recurrences, and advanced thyroid cancer. The dialogue resulted in this position paper contrasting European and ATA 2015 perspectives on key issues. One difference pertains to the permissiveness of ATA 2015 regarding lobectomy for primary tumors ≤4 cm. European panelists cited preclusion of RAIT, potential need for completion thyroidectomy, frequent inability to avoid chronic thyroid hormone replacement, and limitations of supportive evidence as arguments against widely applying lobectomy. Significant divergence involved ATA 2015's guidance regarding RAIT. European panelists favored wider use of postoperative RAIT than does ATA 2015. Rationales included the modality's association with favorable patient outcomes and generally limited toxicity, and lack of high-quality evidence supporting withholding RAIT. Additionally, European panelists favored recombinant human thyrotropin (rhTSH) in more settings than does ATA 2015, citing avoidance of hypothyroid morbidity and quality-of-life impairment, without apparent sacrifice in oncologic outcomes. Based on clinical evidence plus theoretical advantages, European experts advocated dosimetric versus fixed-activity RAIT approaches for advanced DTC. European panelists noted that the ATA 2015 risk-stratification system requires information sometimes unavailable in everyday practice. ATA 2015 recommendations regarding RAI-refractory DTC should consider potential palliative benefits of RAIT in patients who also have RAI-susceptible lesions. CONCLUSIONS European panelists suggested modifications to approximately one-third of ATA 2015 recommendations. Varying European and ATA 2015 perspectives can stimulate analysis and discussion of the literature and performance of primary research to resolve discrepant recommendations and potentially improve patient outcomes.
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Affiliation(s)
- Markus Luster
- 1 Department of Nuclear Medicine, University Hospital Marburg, Marburg, Germany
| | - Cumali Aktolun
- 2 Department of Nuclear Medicine, School of Medicine, Izmir Ekonomi Universitesi, Izmir, Turkey
| | - Isabel Amendoeira
- 3 University Hospital of São João, Medical Faculty and Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
| | - Marcin Barczyński
- 4 Department of Endocrine Surgery, Jagiellonian University Medical College, Krakow, Poland
| | - Keith C Bible
- 5 Division of Medical Oncology, Department of Oncology, The Mayo Clinic, Rochester, Minnesota
| | - Leonidas H Duntas
- 6 Endocrine Unit, Evgenidion Hospital, University of Athens, Athens, Greece
| | - Rossella Elisei
- 7 Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Daria Handkiewicz-Junak
- 8 Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie Memorial Institute and Centre of Oncology, Gliwice Branch, Gliwice, Poland
| | - Martha Hoffmann
- 9 Departments of Nuclear Medicine and Positron Emission Tomography/Computed Tomography, Radiology Center, Vienna, Austria
| | - Barbara Jarząb
- 8 Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie Memorial Institute and Centre of Oncology, Gliwice Branch, Gliwice, Poland
| | - Laurence Leenhardt
- 10 Thyroid and Endocrine Tumor Unit, Pitié-Salpêtrière Sorbonne University Hospital, Paris, France
| | - Thomas J Musholt
- 11 Section of Endocrine Surgery, Department of General, Visceral and Transplantation Surgery, University Medicine, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Kate Newbold
- 12 Thyroid Therapy Unit, The Royal Marsden Hospital, London, United Kingdom
| | - Iain J Nixon
- 13 Department of Ear, Nose, and Throat Surgery, NHS Lothian and University of Edinburgh, Edinburgh, United Kingdom
| | - Johannes Smit
- 14 Department of Medicine, Division of Endocrinology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Manuel Sobrinho-Simões
- 3 University Hospital of São João, Medical Faculty and Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
| | - Julie Ann Sosa
- 15 Department of Surgery, University of California at San Francisco-UCSF, San Francisco, California
| | - R Michael Tuttle
- 16 Department of Endocrinology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Frederik A Verburg
- 1 Department of Nuclear Medicine, University Hospital Marburg, Marburg, Germany
| | - Leonard Wartofsky
- 17 Department of Medicine, Washington Hospital Center, Washington, DC
| | - Dagmar Führer
- 18 Department of Endocrinology and Metabolism, Endocrine Tumor Center at WTZ, Essen University Hospital, Essen, Germany
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Trimboli P, Paone G, Treglia G, Virili C, Ruberto T, Ceriani L, Piccardo A, Giovanella L. Fine-needle aspiration in all thyroid incidentalomas at 18 F-FDG PET/CT: Can EU-TIRADS revise the dogma? Clin Endocrinol (Oxf) 2018; 89:642-648. [PMID: 30019402 DOI: 10.1111/cen.13819] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/11/2018] [Accepted: 07/15/2018] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Focal thyroid incidentalomas (TIs) are observed in 2% of 18 F-FDG PET/CT representing malignancy in one-third of cases. Currently, due to the lack of evidence on their optimal management, guidelines suggest fine-needle aspiration cytology (FNAC). The study aim was to evaluate the role of ultrasound evaluation according to EU-TIRADS to assess the risk of TIs and inform FNAC prescriptions. DESIGN We retrospectively reviewed 18 F-FDG PET/CT TIs recorded during the period 2014-2017. Enrolled were TIs with histological outcome and autonomous nodules. Cases with uncertain matching between 18 F-FDG PET/CT, ultrasound and histology were excluded. RESULTS According to the selection criteria, 75 TIs, being 13 (17.3%) malignant and 62 (82.7%) benign, were included. Cancers had significantly higher SUVmax and SUVmax ratio (Mann-Whitney P < 0.01) than benign, and the most accurate cut-offs were >7.1 and >3.65, respectively. At ultrasound, the cancer rate was 0% in EU-TIRADS 2, 2.9% in EU-TIRADS 3, 4.2% in EU-TIRADS 4% and 78.6% in EU-TIRADS 5 (chi-squared P < 0.001). Sensitivity, specificity, PPV, NPV and accuracy for malignancy were 92%, 64%, 35%, 98% and 69% for SUVmax; 85%, 68%, 36%, 96% and 71% for SUVmax ratio; and 85%, 95%, 79%, 97% and 93% for EU-TIRADS, respectively. The absence of all these three features reached a specificity of 97.1%. CONCLUSIONS EU-TIRADS, within a clinical careful approach, can discriminate with significant accuracy lesions at high risk of malignancy from those at low risk among TIs at 18 F-FDG PET/CT. Additionally, a centre-based threshold for SUV parameters should be useful for the initial assessment of these lesions during PET/CT reading and reporting.
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Affiliation(s)
- Pierpaolo Trimboli
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Gaetano Paone
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Giorgio Treglia
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
- Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital, Lausanne, Switzerland
- Health Technology Assessment Unit, Academic Education, Research and Innovation Area, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Camilla Virili
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Teresa Ruberto
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Luca Ceriani
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Arnoldo Piccardo
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Luca Giovanella
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
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Kim SJ, Lee SW, Jeong SY, Pak K, Kim K. Diagnostic Performance of Technetium-99m Methoxy-Isobutyl-Isonitrile for Differentiation of Malignant Thyroid Nodules: A Systematic Review and Meta-Analysis. Thyroid 2018; 28:1339-1348. [PMID: 30129898 DOI: 10.1089/thy.2018.0072] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND The purpose of the current study was to investigate the diagnostic performance of technetium-99m (Tc-99m) methoxy-isobutyl-isonitrile (MIBI) for differentiation of malignant thyroid nodules (TN) through a systematic review and meta-analysis. METHODS The MEDLINE/PubMed and EMBASE database, from the earliest available date of indexing through January 31, 2018, were searched for studies evaluating the diagnostic performance of Tc-99m MIBI for TN. The sensitivities and specificities were determined across studies, positive and negative likelihood ratios (LR+ and LR-) were calculated, and summary receiver operating characteristic curves were constructed. RESULTS Across 22 studies (2421 patients), the pooled sensitivity for Tc-99m MIBI thyroid scan was 0.87 [confidence interval (CI) 0.76-0.93] with heterogeneity (I2 = 92.3) and a pooled specificity of 0.78 [CI 0.67-0.86] with heterogeneity (I2 = 96.4). LR syntheses gave an overall LR+ of 4.0 [CI 2.5-6.3] and LR- of 0.17 [CI 0.09-0.32]. The pooled diagnostic odds ratio was 24 [CI 63-176]. The hierarchical summary receiver operating characteristic curve indicates that the area under the curve was 0.90 [CI 0.87-0.92]. In meta-regression analysis, no definite variable was the source of the study heterogeneity. CONCLUSION The current meta-analysis shows a moderate sensitivity and specificity of Tc-99m MIBI thyroid scan for differentiation of malignant TN. However, the diagnostic odds ratio was relatively low and the LR scattergram indicated that Tc-99m MIBI thyroid scan is not useful for confirming the presence of malignant TN or for its exclusion. Therefore, Tc-99m MIBI thyroid scans should be used restrictively and interpreted cautiously when assessing TN for malignancy.
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Affiliation(s)
- Seong-Jang Kim
- 1 Department of Nuclear Medicine, Pusan National University Yangsan Hospital , Yangsan, Korea
- 2 BioMedical Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital , Yangsan, Korea
- 3 Department of Nuclear Medicine, College of Medicine, Pusan National University , Yangsan, Korea
| | - Sang-Woo Lee
- 4 Department of Nuclear Medicine, Kyungpook National University Medical Center and School of Medicine , Daegu, Korea
| | - Shin Young Jeong
- 4 Department of Nuclear Medicine, Kyungpook National University Medical Center and School of Medicine , Daegu, Korea
| | - Kyoungjune Pak
- 5 Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital , Busan, Korea
| | - Keunyoung Kim
- 5 Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital , Busan, Korea
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Gay S, Schiaffino S, Santamorena G, Massa B, Ansaldo G, Turtulici G, Giusti M, At The Policlinico San Martino Genoa TT. Role of Strain Elastography and Shear-Wave Elastography in a Multiparametric Clinical Approach to Indeterminate Cytology Thyroid Nodules. Med Sci Monit 2018; 24:6273-6279. [PMID: 30194820 PMCID: PMC6140375 DOI: 10.12659/msm.909870] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background In thyroid nodules with indeterminate cytology, further clinical assessment aimed at ruling out malignancy is often mandatory. Ancillary imaging techniques and genetic mutation analysis can improve the risk stratification of such lesions, thereby facilitating the clinician’s decision to undertaken surgery or simple follow-up. The aim of this study was to evaluate the diagnostic performance of shear-wave elastography (SW), strain elastography (ELX 2/1), conventional ultrasound (US), contrast-enhanced ultrasound (CEUS), and BRAF V600E mutation analysis in the aforementioned lesions. Material/Methods We enrolled 81 patients, each with 1 indeterminate-cytology thyroid nodule. Thyroid function, thyroperoxidase antibodies and calcitonin were known in each case. SW, ELX 2/1, US, CEUS, and BRAF mutation analysis were subsequently performed, followed by a second FNAB. If the lesion was not downgraded to benign, surgery was recommended and histological reports collected. Results There were 28 nodules (34%) that proved benign on the second FNAB; 38 nodules (47%) underwent surgery (17 benign, 21 malignant), and 15 nodules (19%) refused surgery. The only techniques related to histological outcome were US (AUC=0,766), ELX 2/1 (AUC=0.701), and BRAF analysis (AUC=0.762). ELX 2/1 and SW reports were not correlated with each other (P=0.45). A scoring system taking into account all the variables considered performed better than the single variables alone (AUC=0.831). Conclusions In indeterminate-cytology thyroid lesions, repeating FNAB can avoid unnecessary surgery. ELX 2/1 seems to perform better than SW in distinguishing malignancy; these techniques could, however, be complementary in describing such lesions. A multiparametric approach appears the most accurate in predicting nodule histology.
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Affiliation(s)
- Stefano Gay
- Endocrine Unit, Policlinico San Martino, Genoa, Italy
| | | | | | - Barbara Massa
- Cyto-Histopathological Unit, Policlinico San Martino, Genova, Italy
| | | | - Giovanni Turtulici
- Interventional Radiology Unit, Ospedale Evangelico Internazionale, Genoa, Italy
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Jovanovska A, Stoilovska B, Mileva M, Miladinova D, Majstorov V, Ugrinska A. Absent 99mTc-MIBI Uptake in the Thyroid Gland during Early Phase of Parathyroid Scintigraphy in Patients with Primary and Secondary Hyperparathyroidism. Open Access Maced J Med Sci 2018; 6:808-813. [PMID: 29875850 PMCID: PMC5985886 DOI: 10.3889/oamjms.2018.118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/10/2018] [Accepted: 04/20/2018] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Thyroid uptake of technetium-99m methoxyisobutylisonitrile (99mTc-MIBI) during parathyroid scintigraphy can be affected by various conditions. AIM To evaluate the frequency of absent 99mTc-MIBI uptake by the thyroid gland in the early phase of dual-phase parathyroid scintigraphy. METHODS The early planar images of dual phase Tc99m MIBI parathyroid scintigraphy from 217 patients performed between 2014 and 2017 were retrospectively analysed. Patients were divided into two groups. The first group included 147 patients with primary hyperparathyroidism and the second group included 70 patients with chronic renal failure. Patient records, laboratory and ultrasonographic data were analysed in all patients. Descriptive statistic was used for data analysis. RESULTS Out of all patients in the first group, 18 patients (12.24%) showed absent thyroid uptake. Thyroidectomy was performed in 44.4% of these patients, and the rest of them had some thyroid disease. Only one patient had no thyroid or another chronic disease. In the second group, 8 patients (11.42%) presented with absent thyroid uptake of MIBI. Among them, 5 patients had no history of thyroid disease and had been on hemodialysis programme, and 3 patients had hypothyroidism. CONCLUSION Absent 99mTc-MIBI uptake in the thyroid during the early phase of parathyroid scintigraphy is most frequently related to thyroid disease. A small proportion of patients with chronic renal failure can present with absent 99mTc-MIBI uptake in the thyroid as well. The mechanism for this alteration is still unclear and needs further investigation.
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Affiliation(s)
- Anamarija Jovanovska
- Institute of Pathophysiology and Nuclear Medicine, Medical Faculty, Ss. Cyril and Methodius University of Skopje, Skopje, Republic of Macedonia
| | - Bojana Stoilovska
- Institute of Pathophysiology and Nuclear Medicine, Medical Faculty, Ss. Cyril and Methodius University of Skopje, Skopje, Republic of Macedonia
| | - Magdalena Mileva
- Institute of Pathophysiology and Nuclear Medicine, Medical Faculty, Ss. Cyril and Methodius University of Skopje, Skopje, Republic of Macedonia
| | - Daniela Miladinova
- Institute of Pathophysiology and Nuclear Medicine, Medical Faculty, Ss. Cyril and Methodius University of Skopje, Skopje, Republic of Macedonia
| | - Venjamin Majstorov
- Institute of Pathophysiology and Nuclear Medicine, Medical Faculty, Ss. Cyril and Methodius University of Skopje, Skopje, Republic of Macedonia
| | - Ana Ugrinska
- Institute of Pathophysiology and Nuclear Medicine, Medical Faculty, Ss. Cyril and Methodius University of Skopje, Skopje, Republic of Macedonia
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Valabrega S, Santolamazza G, Romanelli F, Scapicchio G, D'Angelo F, Bellotti C, Aurello P, Izzo L, Giovagnoli MR, Trimboli P. Cancer Rate of the Indeterminate Lesions at Low or High Risk According to Italian System for Reporting of Thyroid FNA. Front Endocrinol (Lausanne) 2018; 9:371. [PMID: 30050499 PMCID: PMC6052905 DOI: 10.3389/fendo.2018.00371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 06/21/2018] [Indexed: 12/20/2022] Open
Abstract
Background: Italian consensus for the classification and reporting of thyroid cytology (ICCRTC) has been used in almost all Italian institutions since 2014. High reliability of ICCRTC in classifying low and high risk indeterminate nodules (Tir 3A and Tir 3B, respectively) was demonstrated. Here we reviewed our casuistry of thyroid indeterminate lesions to analyze the histologic outcome. Methods: All lesions undergone FNA and final histology at S. Andrea Hospital of Rome after a cytologic assessment of Tir 3A and Tir 3B, according to ICCRTC, were included in the study. Results: A number of 157 indeterminate FNA was found after the introduction of ICCRTC. Of these, 75 undergone surgery and were finally included for the study. At histology we found a 33.3% of cancers and a 67.7% of benign lesions. Out of the overall series, 25 were classified as Tir 3A and 50 as Tir 3B. Cancer rate observed in Tir 3A (1/25, 4%) was significantly (p = 0.0002) lower than that of Tir 3B (24/50, 48%). No significant difference was found in age and size between the two subcategories. Conclusions: We confirm in our series that Italian consensus for the classification and reporting of thyroid cytology allows to discriminate indeterminate lesions at low and high risk of malignancy.
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Affiliation(s)
- Stefano Valabrega
- Department of Medical and Surgical Sciences, Ospedale S. Andrea, Sapienza University, Rome, Italy
- *Correspondence: Stefano Valabrega
| | - Giuliano Santolamazza
- Department of Medical and Surgical Sciences, Ospedale S. Andrea, Sapienza University, Rome, Italy
| | | | - Giorgia Scapicchio
- Department of Medical and Surgical Sciences, Ospedale S. Andrea, Sapienza University, Rome, Italy
| | - Francesco D'Angelo
- Department of Medical and Surgical Sciences, Ospedale S. Andrea, Sapienza University, Rome, Italy
| | - Carlo Bellotti
- Department of Medical and Surgical Sciences, Ospedale S. Andrea, Sapienza University, Rome, Italy
| | - Paolo Aurello
- Department of Medical and Surgical Sciences, Ospedale S. Andrea, Sapienza University, Rome, Italy
| | - Luciano Izzo
- Department of Surgery “P. Valdoni, Sapienza University, Rome, Italy
| | - Maria R. Giovagnoli
- Department of Clinical and Molecular Medicine, Ospedale S. Andrea, Sapienza University, Rome, Italy
| | - Pierpaolo Trimboli
- Department of Nuclear Medicine and Thyroid Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
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Ruhlmann M, Ruhlmann J, Görges R, Herrmann K, Antoch G, Keller HW, Ruhlmann V. 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography May Exclude Malignancy in Sonographically Suspicious and Scintigraphically Hypofunctional Thyroid Nodules and Reduce Unnecessary Thyroid Surgeries. Thyroid 2017; 27:1300-1306. [PMID: 28793848 DOI: 10.1089/thy.2017.0026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The aim of this study was to evaluate whether 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) is useful in the further characterization of sonographically suspicious and scintigraphically hypofunctional thyroid nodules. METHODS Sixty-five patients with sonographically suspicious thyroid nodules that were hypofunctional on 99m-Tc-pertechnetate scintigraphy (diameter >1 cm) were retrospectively analyzed. All patients underwent evaluation with FDG-PET/CT. Thyroid nodules were sonographically categorized by Thyroid Image Reporting and Data System (TIRADS) criteria. FDG uptake in the thyroid nodules was visually compared to the remainder of the thyroid tissue and categorized as pathological or non-pathological. In cases of pathologically increased uptake, maximum standardized uptake values (SUVmax) of the suspicious nodule and the perinodular thyroid tissue were determined. Depending on the results of the FDG-PET/CT, patients underwent thyroid surgery (pathological FDG uptake) or follow-up examinations (non-pathological FDG uptake). The endpoints for comparison with the FDG uptake were either histological results or sonographic follow-up examinations of at least five years. RESULTS In 18/65 (28%) patients, PET/CT showed visually pathological FDG uptake in the suspicious thyroid nodules (SUVmax 7.1 ± 4.6). Of these nodules, 3/18 (17%) were sonographically categorized as TIRADS 4a, 11/18 (61%) nodules as TIRADS 4b, 3/18 (17%) nodules as TIRADS 4c, and 1/18 (6%) nodule as TIRADS 5. The other nodules without pathological FDG uptake were categorized as TIRADS 4a in 24/47 (51%) patients, as TIRADS 4b in 18/47 (38%), and as TIRADS 4c in 5/47 (11%) patients. Twenty-three patients (18 FDG positive, 5 FDG negative) underwent surgery. The other patients underwent follow-up examinations with stability on observation over at least five years as a surrogate endpoint. Taking into consideration that FDG-PET/CT was rated as true negative in 42/47 patients with stability on sonographic follow-up, sensitivity, specificity, positive predictive value, and negative predictive value of FDG-PET/CT in detecting malignancy in the suspicious thyroid nodules were 100%, 87%, 61%, and 100%, respectively. CONCLUSION FDG-PET/CT allows stratification of patients with sonographically suspicious and scintigraphically hypofunctional thyroid nodules with a positive predictive value of 61% and negative predictive value of 100%. The absence of visually pathological FDG uptake in suspicious thyroid nodules may be useful for avoiding unnecessary thyroid surgery.
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Affiliation(s)
- Marcus Ruhlmann
- 1 Department of Nuclear Medicine, Medical Faculty, University Duisburg-Essen , Essen, Germany
- 2 Department of Diagnostic and Interventional Radiology, Medical Faculty, University Duesseldorf , Duesseldorf, Germany
| | - Jürgen Ruhlmann
- 3 Department of Nuclear Medicine and Radiology, Medizin Center Bonn , Bonn, Germany
| | - Rainer Görges
- 1 Department of Nuclear Medicine, Medical Faculty, University Duisburg-Essen , Essen, Germany
| | - Ken Herrmann
- 1 Department of Nuclear Medicine, Medical Faculty, University Duisburg-Essen , Essen, Germany
| | - Gerald Antoch
- 2 Department of Diagnostic and Interventional Radiology, Medical Faculty, University Duesseldorf , Duesseldorf, Germany
| | - Hans-Wilhelm Keller
- 4 Department of Surgery, Malteser Krankenhaus Bonn/Rein-Sieg , Bonn, Germany
| | - Verena Ruhlmann
- 1 Department of Nuclear Medicine, Medical Faculty, University Duisburg-Essen , Essen, Germany
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Galectin-3 Performance in Histologic a Cytologic Assessment of Thyroid Nodules: A Systematic Review and Meta-Analysis. Int J Mol Sci 2017; 18:ijms18081756. [PMID: 28800068 PMCID: PMC5578146 DOI: 10.3390/ijms18081756] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 08/08/2017] [Accepted: 08/10/2017] [Indexed: 02/07/2023] Open
Abstract
The literature on Galectin-3 (Gal-3) was systematically reviewed to achieve more robust information on its histologic reliability in identifying thyroid cancers and on the concordance between Gal-3 test in histologic and cytologic samples. A computer search of the PubMed and Scopus databases was conducted by combinations of the terms thyroid and Gal-3. Initially, 545 articles were found and, after their critical review, 52 original papers were finally included. They reported 8172 nodules with histologic evaluation of Gal-3, of which 358 with also preoperative FNAC Gal-3 assessment. At histology, Gal-3 sensitivity was 87% (95% confidence intervals [CI] from 86% to 88%), and specificity 87% (95% CI from 86% to 88%); in both cases, we found heterogeneity (I2 85% and 93%, respectively) and significant publication bias (p < 0.001). The pooled rate of positive Gal-3 at fine needle aspiration (FNAC) among cancers with histologically proven Gal-3 positivity was 94% (95% CI from 89% to 97%), with neither heterogeneity (I2 14.5%) nor bias (p = 0.086). These data show high reliability of Gal-3 for thyroid cancer at histology, while its sensitivity on FNAC samples is lower. The limits of cytologic preparations and interpretation of Gal-3 results have to be solved.
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Comparative analysis of diagnostic performance, feasibility and cost of different test-methods for thyroid nodules with indeterminate cytology. Oncotarget 2017; 8:49421-49442. [PMID: 28472764 PMCID: PMC5564779 DOI: 10.18632/oncotarget.17220] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 03/22/2017] [Indexed: 01/07/2023] Open
Abstract
Since it is impossible to recognize malignancy at fine needle aspiration (FNA) cytology in indeterminate thyroid nodules, surgery is recommended for all of them. However, cancer rate at final histology is <30%. Many different test-methods have been proposed to increase diagnostic accuracy in such lesions, including Galectin-3-ICC (GAL-3-ICC), BRAF mutation analysis (BRAF), Gene Expression Classifier (GEC) alone and GEC+BRAF, mutation/fusion (M/F) panel, alone, M/F panel+miRNA GEC, and M/F panel by next generation sequencing (NGS), FDG-PET/CT, MIBI-Scan and TSHR mRNA blood assay.We performed systematic reviews and meta-analyses to compare their features, feasibility, diagnostic performance and cost. GEC, GEC+BRAF, M/F panel+miRNA GEC and M/F panel by NGS were the best in ruling-out malignancy (sensitivity = 90%, 89%, 89% and 90% respectively). BRAF and M/F panel alone and by NGS were the best in ruling-in malignancy (specificity = 100%, 93% and 93%). The M/F by NGS showed the highest accuracy (92%) and BRAF the highest diagnostic odds ratio (DOR) (247). GAL-3-ICC performed well as rule-out (sensitivity = 83%) and rule-in test (specificity = 85%), with good accuracy (84%) and high DOR (27) and is one of the cheapest (113 USD) and easiest one to be performed in different clinical settings.In conclusion, the more accurate molecular-based test-methods are still expensive and restricted to few, highly specialized and centralized laboratories. GAL-3-ICC, although limited by some false negatives, represents the most suitable screening test-method to be applied on a large-scale basis in the diagnostic algorithm of indeterminate thyroid lesions.
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