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Vogel J, Sekler J, Gückel B, Pfannenberg C, Nikolaou K, La Fougère C, Dittmann H, Reinert CP. How [ 18F]FDG-PET/CT Affects the Management of Patients with Differentiated Thyroid Carcinoma in Clinical Routines. Cancers (Basel) 2024; 16:588. [PMID: 38339339 PMCID: PMC10854596 DOI: 10.3390/cancers16030588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
PURPOSE To investigate the impact of [18F]FDG-PET/CT on the management of differentiated thyroid carcinoma (DTC) in routine clinical settings. MATERIAL AND METHODS In total, 98 patients (55 females, age 56 ± 18 years) with histologically confirmed thyroid cancer, including all types of DTC and poorly differentiated thyroid cancer (PDTC, n = 7), underwent [18F]FDG-PET/CT for staging or recurrence diagnostics performed using a state-of-the art clinical scanner (Biograph mCT, Siemens Healthineers) with a standardized examination protocol. The impact of PET/CT on clinical decision making was prospectively evaluated using standardized questionnaires completed by the referring physicians before and after PET/CT. Patient outcome was analyzed for OS drawn from patient records. RESULTS Referring physicians were unable to establish a treatment plan for 81% of patients with thyroid cancer in the absence of PET/CT. The use of PET/CT had a notable influence on patient management, leading to the development of a well-defined treatment plan for 92% of patients. Moreover, after PET/CT a change in pre-PET/CT-intended treatments occurred in 32% of cases, and further invasive diagnostic could be waived in 7% of cases. [18F]FDG-PET/CT revealed a tumor detection rate of 68% (local tumor: 19%, lymph node metastases: 40%, distant metastases: 42%). HTg levels, when stimulated via TSH, were considerably higher in patients with metastases detected on PET/CT, compared to those without metastatic findings (p = 0.02). OS was significantly worse in patients with PDTC (p = 0.002) compared to follicular thyroid cancer (FTC) and PTC or even in patients with distant metastases at first diagnosis (p = 0.03). CONCLUSIONS This prospective registry study confirms that [18F]FDG-PET/CT used in a routine clinical setting has a very important impact on the management of patients with thyroid cancer by initiating treatments and reducing the uses of additional imaging and invasive tests.
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Affiliation(s)
- Jonas Vogel
- Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University Hospital of Tuebingen, Otfried-Mueller-Strasse 14, 72076 Tuebingen, Germany
- Diagnostic and Interventional Radiology, Department of Radiology, University Hospital of Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany (C.P.R.)
| | - Julia Sekler
- Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University Hospital of Tuebingen, Otfried-Mueller-Strasse 14, 72076 Tuebingen, Germany
- Diagnostic and Interventional Radiology, Department of Radiology, University Hospital of Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany (C.P.R.)
| | - Brigitte Gückel
- Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University Hospital of Tuebingen, Otfried-Mueller-Strasse 14, 72076 Tuebingen, Germany
- Diagnostic and Interventional Radiology, Department of Radiology, University Hospital of Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany (C.P.R.)
- Cluster of Excellence iFIT (EXC 2180) “Image Guided and Functionally Instructed Tumor Therapies”, University of Tuebingen, 72076 Tuebingen, Germany
| | - Christina Pfannenberg
- Diagnostic and Interventional Radiology, Department of Radiology, University Hospital of Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany (C.P.R.)
| | - Konstantin Nikolaou
- Diagnostic and Interventional Radiology, Department of Radiology, University Hospital of Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany (C.P.R.)
- Cluster of Excellence iFIT (EXC 2180) “Image Guided and Functionally Instructed Tumor Therapies”, University of Tuebingen, 72076 Tuebingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tuebingen, 72074 Tuebingen, Germany
| | - Christian La Fougère
- Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University Hospital of Tuebingen, Otfried-Mueller-Strasse 14, 72076 Tuebingen, Germany
- Cluster of Excellence iFIT (EXC 2180) “Image Guided and Functionally Instructed Tumor Therapies”, University of Tuebingen, 72076 Tuebingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tuebingen, 72074 Tuebingen, Germany
| | - Helmut Dittmann
- Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University Hospital of Tuebingen, Otfried-Mueller-Strasse 14, 72076 Tuebingen, Germany
| | - Christian Philipp Reinert
- Diagnostic and Interventional Radiology, Department of Radiology, University Hospital of Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany (C.P.R.)
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Marongiu A, Nuvoli S, De Vito A, Vargiu S, Spanu A, Madeddu G. Hashimoto's Thyroiditis and Papillary Thyroid Carcinoma: A Follow-Up Study in Patients with Absence of Aggressive Risk Factors at the Surgery of the Primary Tumor. Diagnostics (Basel) 2023; 13:3068. [PMID: 37835813 PMCID: PMC10572807 DOI: 10.3390/diagnostics13193068] [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: 08/04/2023] [Revised: 09/25/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Hashimoto's thyroiditis (HT) is often associated with papillary thyroid carcinoma (PC); it is still a matter of controversy whether the behavior of carcinoma is more aggressive or not. During the follow-up, we retrospectively enrolled 97 patients with PC/HT after thyroidectomy without risk factors at the surgery of the primary tumor, such as multifocality/multicentricity, extrathyroid tumor extension, vascular invasion, neck and distant metastases, and aggressive histological variants. HT diagnosis was confirmed by histology and serum thyroid antibodies. Tumor size was ≤10 mm in 64 cases (microcarcinomas); 206 matched PC patients after thyroidectomy without HT and risk factors were enrolled as controls, totaling 122 microcarcinomas. During follow-up, metastases occurred in 15/97 (15.5%) PC/HT cases, eight microcarcinomas, and in 16/206 (7.8%) without HT, eight microcarcinomas (p = 0.04). Considering both PC/HT and PC patients without HT who developed metastases, univariate analysis showed an increased risk of metastases in patients with HT coexistence, OR: 2.17 (95% CI 1.03-4.60) p = 0.043. Disease-free survival (DFS) was significantly (p = 0.0253) shorter in PC/HT than in the controls. The present study seems to demonstrate that HT is not a cancer protective factor in PC patients given the less favorable outcomes and significantly shorter DFS. HT may also represent an independent recurrence predictor without other risk factors.
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Affiliation(s)
- Andrea Marongiu
- Unit of Nuclear Medicine, Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy; (S.N.); (S.V.); (A.S.); (G.M.)
| | - Susanna Nuvoli
- Unit of Nuclear Medicine, Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy; (S.N.); (S.V.); (A.S.); (G.M.)
| | - Andrea De Vito
- Unit of Infectious Diseases, Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy;
| | - Sonia Vargiu
- Unit of Nuclear Medicine, Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy; (S.N.); (S.V.); (A.S.); (G.M.)
| | - Angela Spanu
- Unit of Nuclear Medicine, Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy; (S.N.); (S.V.); (A.S.); (G.M.)
| | - Giuseppe Madeddu
- Unit of Nuclear Medicine, Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy; (S.N.); (S.V.); (A.S.); (G.M.)
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Wijewardene A, Hoang J, Maw AM, Gild M, Tacon L, Roach P, Schembri G, Chan D, Clifton-Bligh R. I-PET score: Combining whole body iodine and 18 F-FDG PET/CT imaging to predict progression in structurally or biochemically incomplete thyroid cancer. Clin Endocrinol (Oxf) 2023; 98:436-446. [PMID: 35918798 DOI: 10.1111/cen.14804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/28/2022] [Accepted: 07/27/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE We propose a new scoring system (I-PET) combining whole body scan (WBS) and FDG findings to identify patients who have or are likely to become refractory to radioactive iodine. DESIGN Retrospective analysis of 142 patients age >18 with differentiated thyroid cancer who had a F-18 labelled fluoro-2-deoxyglucose (18 F-FDG) positron emission tomography (PET) and WBS within a 6-month period between 2010 and 2020. Pairs of 18 F-FDG PET and WBS were reviewed by three independent nuclear medicine physicians and an I-PET score was assigned: I-PET [0]: Iodine -ve/FDG -ve, I-PET [1]: Iodine +ve/FDG -ve, I-PET [2]: Iodine +ve/FDG +ve and I-PET [3]: Iodine -ve/FDG +ve. Patients with FDG +ve lesions (I-PET [2] and I-PET [3]) were further classified into groups A and B if SUVmax was ≤5 or >5, respectively. Follow-up data were obtained by chart review. Progression was defined as structural progression as per RECIST 1.1 or further surgical intervention; or biochemical progression as unstimulated thyroglobulin increasing >20% from baseline. RESULTS Of 142 patients included in the study 121 patients had follow-up data available for review. At baseline, 49 patients were classified as I-PET [0], 10 as I-PET [1], 16 as I-PET [2] and 46 as I-PET [3]. Progression was seen in 11/49 (22%) of I-PET [0], 4/10 (40%) of I-PET [1], 10/16 (63%) of I-PET [2] and 34/46 (74%) of I-PET [3] (p < 0.001). I-PET [2B] and I-PET [3B] had a progression rate of 88% (7/8) and 78% (25/32), respectively. I-PET [3B] were 9.6 times more likely to commence multikinase inhibitor therapy (p = 0.001) and had 8 times greater mortality (p = 0.003) than patients in other I-PET groups combined. CONCLUSION I-PET is a simple readily acquired imaging biomarker that potentially enhances the dynamic risk stratification and guide treatment in thyroid cancer.
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Affiliation(s)
- Ayanthi Wijewardene
- Department of Endocrinology, Royal North Shore Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Jeremy Hoang
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Nuclear Medicine Department, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Aung Min Maw
- Nuclear Medicine Department, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Matti Gild
- Department of Endocrinology, Royal North Shore Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Lyndal Tacon
- Department of Endocrinology, Royal North Shore Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Paul Roach
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Nuclear Medicine Department, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Geoffrey Schembri
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Nuclear Medicine Department, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - David Chan
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Medical Oncology Department, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Roderick Clifton-Bligh
- Department of Endocrinology, Royal North Shore Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
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Lebbink CA, de Vries LH, Borel Rinkes IHM, Braat AJAT, van Leeuwaarde RS, Lodewijk L, van Treijen MJC, Vriens MR, Valk GD, van Santen HM, de Keizer B. FDG PET/CT in differentiated thyroid cancer patients with low thyroglobulin levels. Eur J Endocrinol 2022; 187:101-110. [PMID: 35521710 DOI: 10.1530/eje-22-0072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 04/28/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To evaluate the usefulness of [18F]fluorodeoxyglucose (FDG) positron emissive tomography (PET)/CT in patients with low detectable thyroglobulin levels suspicious for persistent or recurrent differentiated thyroid cancer (DTC). METHODS A retrospective case series study evaluating FDG PET/CT in patients with detectable thyroglobulin (Tg) levels (≥0.20 and <10.00 ng/mL) after initial treatment with total thyroidectomy and I-131 thyroid remnant ablation for pT1-3aN0-1bM0 DTC. Sensitivity, specificity, positive (PPV) and negative predictive value (NPV) of FDG PET/CT were calculated. RESULTS Twenty-seven patients underwent FDG PET/CT. Median Tg level at FDG PET/CT was 2.00 ng/mL (range 0.30-9.00). FDG PET/CT was positive in 14 patients (51.9%): lesions suspicious for lymph node metastases were depicted in 12 patients, and lung metastases in 2. DTC was confirmed in 13/14 FDG PET/CT-positive patients. In 9/13 patients with a negative FDG PET/CT, DTC was confirmed ≤3 months after FDG PET/CT. The sensitivity, PPV, specificity and NPV were 59.1, 92.9, 80.0 and 30.8%, respectively. CONCLUSIONS This case series shows that FDG PET/CT might be useful to detect persistent or recurrent DTC in patients with low detectable Tg. However, when FDG PET/CT is negative, this does not rule out DTC and further investigations are necessary.
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Affiliation(s)
- Chantal A Lebbink
- Department of Pediatric Endocrinology, Wilhelmina Children's Hospital (WKZ), University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Lisa H de Vries
- Department of Surgery, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Inne H M Borel Rinkes
- Department of Surgery, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Arthur J A T Braat
- Department of Nuclear Medicine and Radiology, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Rachel S van Leeuwaarde
- Department of Endocrine Oncology, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Lutske Lodewijk
- Department of Surgery, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Mark J C van Treijen
- Department of Endocrine Oncology, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Menno R Vriens
- Department of Surgery, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Gerlof D Valk
- Department of Endocrine Oncology, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Hanneke M van Santen
- Department of Pediatric Endocrinology, Wilhelmina Children's Hospital (WKZ), University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Bart de Keizer
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Nuclear Medicine and Radiology, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
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