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Leder T, Seifert P, Drescher R, Gühne F, Freesmeyer M. Excellent Response to Multimodal Therapy Approach in Hyperfunctioning Metastatic Follicular Thyroid Carcinoma Diagnosed on 123 I-SPECT/Ultrasound Fusion Imaging. Clin Nucl Med 2023; 48:266-268. [PMID: 36241043 DOI: 10.1097/rlu.0000000000004448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
ABSTRACT An 83-year-old woman presented with new-onset hyperthyroidism and suspicious thyroid nodules on ultrasound (US). Conventional 99m TcO 4 thyroid scintigraphy showed hyperfunctioning areas that could not be clearly assigned to the US findings. With the aid of 123 I-SPECT/US fusion imaging, suspicious nodules were unambiguously identified as autonomously hyperfunctioning lesions. Additional 123 I whole-body scan revealed iodine-avid lymphonodular and pulmonal metastases. Clinical diagnosis of hormone-active thyroid carcinoma was made and histologically confirmed. Because of significant hyperthyroidism as well as multiple partially iodine-negative metastases, a multimodal treatment regime consisting of 131 I radioiodine therapy, surgery, and radiation therapy was conducted, leading to almost complete remission.
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Affiliation(s)
- Theresa Leder
- From the Clinic of Nuclear Medicine, Jena University Hospital, Jena, Germany
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Optimization of Thyroid Volume Determination by Stitched 3D-Ultrasound Data Sets in Patients with Structural Thyroid Disease. Biomedicines 2023; 11:biomedicines11020381. [PMID: 36830918 PMCID: PMC9952922 DOI: 10.3390/biomedicines11020381] [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: 01/09/2023] [Revised: 01/23/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Ultrasound (US) is the most important imaging method for the assessment of structural disorders of the thyroid. A precise volume determination is relevant for therapy planning and outcome monitoring. However, the accuracy of 2D-US is limited, especially in cases of organ enlargements and deformations. Software-based "stitching" of separately acquired 3D-US data revealed precise volume determination in thyroid phantoms. The purpose of this study is to investigate the feasibility and accuracy of 3D-US stitching in patients with structural thyroid disease. A total of 31 patients from the clinical routine were involved, receiving conventional 2D-US (conUS), sensor-navigated 3D-US (3DsnUS), mechanically-swept 3D-US (3DmsUS), and I-124-PET/CT as reference standard. Regarding 3DsnUS and 3DmsUS, separately acquired 3D-US images (per thyroid lobe) were merged to one comprehensive data set. Subsequently, anatomical correctness of the stitching process was analysed via secondary image fusion with the I-124-PET images. Volumetric determinations were conducted by the ellipsoid model (EM) on conUS and CT, and manually drawn segmental contouring (MC) on 3DsnUS, 3DmsUS, CT, and I-124-PET/CT. Mean volume of the thyroid glands was 44.1 ± 25.8 mL (I-124-PET-MC = reference). Highly significant correlations (all p < 0.0001) were observed for conUS-EM (r = 0.892), 3DsnUS-MC (r = 0.988), 3DmsUS-MC (r = 0.978), CT-EM (0.956), and CT-MC (0.986), respectively. The mean volume differences (standard deviations, limits of agreement) in comparison with the reference were -10.50 mL (±11.56 mL, -33.62 to 12.24), -3.74 mL (±3.74 mL, -11.39 to 3.78), and 0.62 mL (±4.79 mL, -8.78 to 10.01) for conUS-EM, 3DsnUS-MC, and 3DmsUS-MC, respectively. Stitched 3D-US data sets of the thyroid enable accurate volumetric determination even in enlarged and deformed organs. The main limitation of high time expenditure may be overcome by artificial intelligence approaches.
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Schenke SA, Kreissl MC, Grunert M, Hach A, Haghghi S, Kandror T, Peppert E, Rosenbaum-Krumme S, Ruhlmann V, Stahl A, Wanjura D, Zaplatnikov K, Zimny M, Gilman E, Herrmann K, Görges R. Distribution of Functional Status of Thyroid Nodules and Malignancy Rates of Hyperfunctioning and Hypofunctioning Thyroid Nodules in Germany. Nuklearmedizin 2022; 61:376-384. [PMID: 35917825 DOI: 10.1055/a-1856-4052] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
AIM Thyroid scintigraphy enables the depiction of the functional status of thyroid nodules (TNs) with both, 99mTc-pertechnetate and 123Iodine. The functional status is relevant for diagnostic procedures for the differentiation of benign and malignant TNs. The aim of this study was to examine the current frequencies of hyper-, hypo- and isofunctioning TNs in Germany and to estimate the risk of malignancy with regard to functional status. METHODS In 11 study centers, a minimum of 100 nodules per center were consecutively enrolled between July 2019 and April 2020. Inclusion criteria were: newly diagnosed nodule, nodule' size of 10 mm or more, thyroid scintigraphy. Exclusion criteria were: completely cystic TNs, patients with prior radioiodine therapy or thyroid surgery. The risk of malignancy was estimated for hyper- and hypofunctioning TNs. RESULTS Overall, 849 patients (72 % women) with 1262 TNs were included. Patients' age ranged from 18 to 90 years. Most TNs were hypofunctioning (n=535, 42%) followed by isofunctioning TNs (n=488, 39%) and hyperfunctioning TNs (n=239, 19%). When only TNs with a maximum size of 2 cm or more were considered the rate of hyperfunctioning and hypofunctioning TNs increased (to 27% and 49%) while isofunctioning TNs decreased. Only one of all hyperfunctioning TNs was malignant. In hypofunctioning nodules, the malignancy rate was estimated at 10%. CONCLUSION In Germany, the proportion of hyperfunctioning TNs is approximately 20% and increases in larger TNs to up to 27%. Due to the low risk of malignancy in hyperfunctioning TNs, no further procedures to rule out malignancy are necessary. The risk of malignancy of hypofunctioning TNs is significantly higher. Thus, a thyroid scintigraphy is a useful diagnostic tool in Germany.
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Affiliation(s)
- Simone Agnes Schenke
- Klinik und Institut für Nuklearmedizin, Klinikum Bayreuth GmbH, Bayreuth, Germany.,Nuklearmedizin, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | | | - Michael Grunert
- Klinik für Nuklearmedizin, Bundeswehrkrankenhaus Ulm, Ulm, Germany
| | - Anja Hach
- Institut für Radiologie und Nuklearmedizin Bremerhaven, Bremerhaven, Germany
| | - Sarvar Haghghi
- Nuklearmedizin, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | | | - Eckhard Peppert
- ANZW, Ambulant-Nuklearmedizinsches Zentrum Würzburg, Würzburg, Germany
| | | | - Verena Ruhlmann
- Gemeinschaftspraxis Nuklearmedizin Duisburg, Duisburg, Standort Moers, Germany
| | | | | | | | - Michael Zimny
- Standort Hanau, Überörtliche Berufsausübungsgemeinschaft für Nuklearmedizin Hanau, Hanau, Germany
| | | | - Ken Herrmann
- Klinik für Nuklearmedizin, Universitätsklinikum Essen, Essen, Germany
| | - Rainer Görges
- Gemeinschaftspraxis Nuklearmedizin Duisburg, Duisburg, Germany.,Klinik für Nuklearmedizin, Universitätsklinikum Essen, Essen, Germany
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Seifert P, Greiser J, Winkens T, Lorenz K, Freesmeyer M. Ectopic Retrolaryngeal Parathyroid Adenoma Detected by 18F-Ethylcholine PET/US Fusion Imaging. Clin Nucl Med 2022; 47:182-184. [PMID: 34406183 DOI: 10.1097/rlu.0000000000003865] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT A 68-year-old woman was referred with the diagnosis of symptomatic pHPT (primary hyperparathyroidism). Ultrasonography (US) and 99mTc-MIBI scintigraphy could not clearly identify a parathyroid adenoma. A primary unilateral surgical exploration remained unsuccessful to remove adenomatous parathyroid tissue and the pHPT persisted. 18F-ethylcholine PET/CT showed a left-sided retropharyngeal lesion with intense tracer uptake that could not be detected on US images at first sight. Therefore, additional 18F-ethylcholine PET/US fusion imaging was performed and revealed a poorly definable nodular structure on US that could be unambiguously correlated to the PET finding. Surgical excision confirmed an oncocytic variant of parathyroid adenoma, and parathormone and calcium levels normalized immediately.
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Affiliation(s)
- Philipp Seifert
- From the Clinic of Nuclear Medicine, Jena University Hospital, Jena
| | - Julia Greiser
- From the Clinic of Nuclear Medicine, Jena University Hospital, Jena
| | - Thomas Winkens
- From the Clinic of Nuclear Medicine, Jena University Hospital, Jena
| | - Kerstin Lorenz
- Medical Faculty, Department of Visceral, Vascular, and Endocrine Surgery, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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Schenke SA, Görges R, Seifert P, Zimny M, Kreissl MC. Update on diagnosis and treatment of hyperthyroidism: ultrasonography and functional imaging. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2021; 65:102-112. [PMID: 33494588 DOI: 10.23736/s1824-4785.21.03333-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ultrasonography and radionuclide imaging using [99mTc]Pertechnetate or radioactive iodine isotopes are essential tools used during the diagnostic workup of hyperthyroidism with or without structural alterations of the thyroid. Color duplex sonography and ultrasound elastography may add important information to find the cause of the hormone excess. During the last few years, hybrid imaging using SPECT/-(CT) or PET-based methods, such as [124]Iodine-PET/CT or [124]Iodine-PET/ultrasound have been increasingly used, playing a role in the context of localizing ectopic thyroid tissue or in multinodular goiter. Recently, promising data has been published on the use of [99mTc]MIBI imaging in amiodarone induced hyperthyroidism.
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Affiliation(s)
- Simone A Schenke
- Division of Nuclear Medicine, Department of Radiology and Nuclear Medicine, University Hospital of Magdeburg, Magdeburg, Germany -
| | - Rainer Görges
- Department of Nuclear Medicine, University Hospital Essen, Essen, Germany
| | - Philipp Seifert
- Clinic for Nuclear Medicine, University Hospital of Jena, Jena, Germany
| | | | - Michael C Kreissl
- Division of Nuclear Medicine, Department of Radiology and Nuclear Medicine, University Hospital of Magdeburg, Magdeburg, Germany
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Ultrasound Cine Loop Standard Operating Procedure for Benign Thyroid Diseases-Evaluation of Non-Physician Application. Diagnostics (Basel) 2021; 11:diagnostics11010067. [PMID: 33406645 PMCID: PMC7824138 DOI: 10.3390/diagnostics11010067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/18/2020] [Accepted: 12/31/2020] [Indexed: 11/16/2022] Open
Abstract
Conventional ultrasound (US) is time-consuming, and results are subjected to high interobserver variability. In this study, the reliability of a novel thyroid US cine loop standard operating procedure (SOP) applied by non-physicians (Medical Technical Assistant, MTA) is investigated. Thirty-three consecutive patients (22 females, 11 males) were enrolled. Patients underwent conventional thyroid US performed by a nuclear medicine physician and additional MTA US cine loop according to a local SOP that includes transversal and sagittal cine loops covering the entire thyroid. The video sequences were transferred to the Picture Archiving and Communication System (PACS) for second reading purposes. MTA US data were not considered for medical reports but for blinded second reading review of the PACS images. The results of conventional physician US reports and reviewed MTA US cine loops were compared regarding size determinations of the thyroid and its nodules, as well as Thyroid Imaging Reporting and Data Systems (TIRADS) classification of all identified lesions. The results revealed very high concordance between conventional physician US and MTA US cine loop review for both size measurements and TIRADS classifications (r(s) = 0.84-0.99, p < 0.0001 each). Minor technical impairments were identified. The evaluated thyroid US cine loop SOP enables reliable second reading results and can be applied by non-physicians.
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