Objectives: In this study, we aimed to evaluate the efficacy of thyroid volume measurement using Tc pertechnetate single-photon emission computed tomography (SPECT) images, acquired by the standardized uptake value (SUV)-shape scheme designed by our expert team.
Methods: A total of 18 consecutive patients with Graves' disease (GD) were subjected to both ultrasonographic and Tc pertechnetate SPECT examinations of thyroid within a five-day interval. The volume of thyroid lobes and isthmus was measured by ultrasonography (US) according to the ellipsoid volume equation. The total thyroid volume, determined as the sum of the volume of both lobes and isthmus, was recorded as TV-US (i.e., thyroid volume measured by US) and set as the reference. The thyroid volume was defined according to our SUV-shape scheme and was recorded as TV-SS (i.e., thyroid volume determined by the SUV-shape scheme). The data were analyzed using the Bland-Altman plot, linear regression analysis, Spearman's rank correlation, and paired t-test, if necessary.
Results: The values of TV-SS (40.2±29.4 mL) and TV-US (43.0±34.7 mL) were not significantly different (t=0.813; P=0.43). The linear regression equation of the two values was determined as TV-US= 1.072 × TV-SS - 0.29 (r=0.906; P<0.01).
Conclusion: The new scheme, i.e., SUV-shape scheme, exhibited potential for the measurement of thyroid volume in patients with GD.
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http://dx.doi.org/10.22038/aojnmb.2016.7401 | DOI Listing |
Int J Radiat Oncol Biol Phys
December 2024
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China. Electronic address:
Purpose: To establish an artificial intelligence (AI)-empowered multistep integrated (MSI) radiation therapy (RT) workflow for patients with nasopharyngeal carcinoma (NPC) and evaluate its feasibility and clinical performance.
Methods And Materials: Patients with NPC scheduled for MSI RT workflow were prospectively enrolled. This workflow integrates RT procedures from computed tomography (CT) scan to beam delivery, all performed with the patient on the treatment couch.
BMC Med Imaging
December 2024
Department of Nuclear Medicine, Hospital 108, Hanoi, Vietnam.
Objective: Identifying prognostic markers for clinical outcomes is crucial in selecting appropriate treatment options for patients with radioiodine-refractory (RAI-R) differentiated thyroid carcinoma (DTC). The aim of this study was to investigate the prognostic value of clinico-pathological features and semiquantitative [F]FDG PET/CT metabolic parameters in predicting progression-free survival (PFS) in DTC patients with RAI-R.
Patients And Methods: This prospective cohort study included 110 consecutive RAI-R DTC patients who were referred for [F]FDG PET/CT imaging.
J Biomol Struct Dyn
December 2024
Laboratory for Macromolecular Biophysics - LBM, Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Transthyretin (TTR) is a vertebrate-exclusive transport protein that plays a key role in binding and distributing thyroid hormones. However, its evolutionary origin lies in the duplication of the gene that encoding the enzyme 5-hydroxyisourate hydrolase (HIUase), which is involved in uric acid metabolism. Unlike TTR, HIUase is ubiquitous in both prokaryotes and eukaryotes, with the exception of hominids.
View Article and Find Full Text PDFThyroid
December 2024
Oncology Center, Oswaldo Cruz German Hospital, São Paulo, Brazil.
Autonomously functioning thyroid nodules (AFTNs) represent ∼5% of all thyroid nodules and often necessitate definitive treatments such as surgery or radioiodine (I), both of which have inherent risks. Radiofrequency ablation (RFA) has emerged as an effective and safe therapeutic option for managing AFTNs. This study aims to assess the effectiveness and safety of RFA for solitary AFTNs in various countries across Latin America.
View Article and Find Full Text PDFQuant Imaging Med Surg
December 2024
Department of Ultrasound, Chinese Academy of Medical Sciences & Peking Union Medical College Hospital, Beijing, China.
Background: Pre-operative detection of skip metastasis in papillary thyroid cancer (PTC) is significant in preventing recurrence. The study aimed to investigate the characteristics and prognosis of skip metastasis to lateral neck in PTC patients by a cross-sectional study.
Methods: Between 2013 and 2016, 494 patients who underwent thyroidectomy for PTC and positive lateral lymph node metastases (LLNM) were retrospectively identified.
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