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Latia M, Borlea A, Mihuta MS, Neagoe OC, Stoian D. Impact of ultrasound elastography in evaluating Bethesda category IV thyroid nodules with histopathological correlation. Front Endocrinol (Lausanne) 2024; 15:1393982. [PMID: 38863927 PMCID: PMC11165070 DOI: 10.3389/fendo.2024.1393982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/10/2024] [Indexed: 06/13/2024] Open
Abstract
Introduction Fine needle aspiration (FNA) is the gold standard method recommended in the diagnosis of thyroid nodules. Bethesda IV cytology results are identified in 7-9% of nodules investigated through FNA, with reported malignancy rate in a wide range of 10-40%. The recommended treatment is either surgical or risk additional molecular testing before surgery. However, a large number of nodules belonging to this category (60-80%) are observed to be benign after surgical excision, which can put the patient at risk of unnecessary surgical morbidity. This study aimed to assess the diagnostic performance of conventional ultrasound, the ACR TI-RADS score and elastography in cases of Bethesda IV cytology on FNA. Methods We evaluated ninety-seven consecutive cases with Bethesda category IV results on FNA by using conventional B-mode ultrasound, qualitative strain or shear-wave elastography (Hitachi Preirus Machine, Hitachi Inc., Japan and Aixplorer Mach 30 Supersonic Imagine, Aix-en-Provence, France) and all nodules were classified according to the ACR TI-RADS system. Conventional ultrasound was used to categorize the nodules as potentially malignant based on the following features: hypoechogenicity, inhomogeneity, a taller than wide shape, irregular margins, presence of microcalcifications, an interrupted thyroid capsule and suspicious cervical lymph nodes. Elastography classified nodules with increased stiffness as suspicious for malignancy. Results We considered pathology results as the gold standard diagnosis, finding that 32 out of 97 nodules were carcinomas (33%) and 65 out of 97 were benign nodules (67%). The benign group included twenty cases of non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). Finally, we compared ultrasound data with pathology results, which showed that nineteen out of the 32 malignant nodules presented with increased stiffness on elastography (p=0.0002). On conventional ultrasound, we found that microcalcifications (p=0.007), hypoechogenicity and irregular margins (p=0.006) are features which can distinguish between benign and malignant nodules with statistical significance. Discussion Integrating elastography as a parameter of the ACR TI-RADS score in the evaluation of Bethesda category IV nodules showed a sensitivity of 90.62% in detecting thyroid cancer cases (p=0.006). We can conclude that elastographic stiffness as an addition to high risk features observed on conventional ultrasound improves the detection of malignant nodules in cases with Bethesda IV cytology.
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Affiliation(s)
- Monica Latia
- Department of Doctoral Studies, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- Dr. D Medical Center, Center for Advanced Ultrasound Evaluation, Timisoara, Romania
| | - Andreea Borlea
- Dr. D Medical Center, Center for Advanced Ultrasound Evaluation, Timisoara, Romania
- Center of Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- 2 Department of Internal Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Monica Simina Mihuta
- Dr. D Medical Center, Center for Advanced Ultrasound Evaluation, Timisoara, Romania
- Center of Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Octavian Constantin Neagoe
- Dr. D Medical Center, Center for Advanced Ultrasound Evaluation, Timisoara, Romania
- 1 Department of Surgery, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- Second Clinic of General Surgery and Surgical Oncology, Emergency Clinical Municipal Hospital, Timisoara, Romania
| | - Dana Stoian
- Dr. D Medical Center, Center for Advanced Ultrasound Evaluation, Timisoara, Romania
- Center of Molecular Research in Nephrology and Vascular Disease, Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- 2 Department of Internal Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
- Endocrinology Unit, Pius Brinzeu Emergency Clinical Hospital, Timisoara, Romania
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Studeny T, Kratzer W, Schmidberger J, Graeter T, Barth TFE, Hillenbrand A. Analysis of vascularization in thyroid gland nodes with superb microvascular imaging (SMI) and CD34 expression histology: a pilot study. BMC Med Imaging 2021; 21:159. [PMID: 34717558 PMCID: PMC8557585 DOI: 10.1186/s12880-021-00690-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 10/19/2021] [Indexed: 11/28/2022] Open
Abstract
Background The Doppler sonography technique known as "superb microvascular imaging" (SMI) is advancing sonographic micro vascularization imaging in various disciplines. In this study, we aimed to determine whether SMI could reliably reproduce the blood flow in thyroid nodes and whether malignancy could be diagnosed, based on vascularization properties. Immunhistochemical staining by CD34 and SMI where used to determine the vascularization of nodes in terms of quantified vascularization parameters gained by computational evaluation. Methods We used image analysis programs to investigate whether the quantitative value for vascularization strength in the thyroid node, measured with SMI, was correlated with the actual degree of vascularization, determined microscopically. We included 16 patients that underwent thyroid resections. We prepared thyroid gland tissue slices for immunohistochemistry and labelled endothelial cells with CD34 to visualize blood vessels microscopically. We used image analysis programs, ImageJ, to quantify SMI Doppler sonographic measurements and CellProfiler to quantify CD34 expression in histological sections. We evaluated the numeric values for diagnostic value in node differentiation. Furthermore, we compared these values to check for correlations. Results Among the 16 nodes studied, three harboured malignant tumours (18.75%): two papillary and one follicular carcinoma. Among the 13 benign lesions (81.25%), four harboured follicular adenomas. Malignant and benign nodes were not significantly different in sonographic (0.88 ± 0.89 vs. 1.13 ± 0.19; p = 0.2790) or immunohistochemical measurements of vascularization strength (0.05 ± 0.05 vs. 0.08 ± 0.06; p = 0.2260). Conclusion We found a positive, significant correlation (r = 0.55588; p = 0.0254) between SMI (quantitative values for vascularization strength) and immunohistochemistry (CD34 staining) evaluations of thyroid nodes.
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Affiliation(s)
- Thomas Studeny
- Department of Internal Medicine I, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Wolfgang Kratzer
- Department of Internal Medicine I, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Julian Schmidberger
- Department of Internal Medicine I, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Tilmann Graeter
- Department of Diagnostic and Interventional Radiology, Ulm University Hospital, Albert-Einstein-Alee 23, 89081, Ulm, Germany
| | - Thomas F E Barth
- Institute of Pathology, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Andreas Hillenbrand
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Alee 23, 89081, Ulm, Germany
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Mezei T, Kolcsár M, Pașcanu I, Vielh P. False positive cases in thyroid cytopathology - the experience of a single laboratory and a systematic review. Cytopathology 2021; 32:493-504. [PMID: 33914381 DOI: 10.1111/cyt.12984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/08/2021] [Accepted: 03/31/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Fine needle aspiration (FNA) is fundamental in the pre-operative assessment of thyroid nodules. However, the shining success of thyroid FNA is occasionally eclipsed by false positive (FP) cytological diagnoses. We describe our experience regarding FP cytological diagnoses and present a literature review concerning FP rates. MATERIALS AND METHODS We retrospectively analyzed 2031 consecutive cytology reports. FP was defined as a case with "suspicious for malignancy" or "malignant" cytology, whose surgical follow-up failed to confirm the initial diagnosis of malignancy. We used the PubMed database for the literature review using specific search terms ("thyroid", "cytology", "false positive"). RESULTS Out of 2031 FNA reports, 93 cases with "suspicious for malignancy" or "malignant" cytology underwent surgical excision. Histopathology did not confirm malignancy in 10 cases (0.6% FP rate). Nodules with FP cytology were significantly larger (P = 0.0024) than those with with TP (true positive) cytology. A review of 25 publications shows comparable results to ours with some slight differences. The majority of studies achieve a FP rate below 3%. Most FP cytological diagnoses turn out to be non-neoplastic lesions (nodular hyperplasia, adenomatous nodule, lymphocytic thyroiditis), which combined account for 80.5% of all histological diagnoses. CONCLUSIONS Thyroid nodules with FP cytology were larger than nodules with TP cytology. Most studies manage to adhere to the recommended FP rates, or values close to them, with some outliers. Nevertheless, the mean FP rate values are very close to the value recommended by The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC). The FP rate value depends on how one defines true negative cases, which can be either histologically proven benign cases, via a benign clinical course, or by assuming that cytologically benign cases remain as such.
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Affiliation(s)
- Tibor Mezei
- Department of Pathology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Targu Mures, Romania
| | - Melinda Kolcsár
- Department of Pharmacology and Clinical Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Targu Mures, Romania
| | - Ionela Pașcanu
- Department of Endocrinology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Targu Mures, Romania
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Wu MH, Chen KY, Hsieh MS, Chen A, Chen CN. Risk Stratification in Patients With Follicular Neoplasm on Cytology: Use of Quantitative Characteristics and Sonographic Patterns. Front Endocrinol (Lausanne) 2021; 12:614630. [PMID: 33995270 PMCID: PMC8120278 DOI: 10.3389/fendo.2021.614630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/22/2021] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES Differentiating thyroid nodules with a cytological diagnosis of follicular neoplasm remains an issue. The goal of this study was to determine whether ultrasonographic (US) findings obtained preoperatively from the computer-aided detection (CAD) system are sufficient to further stratify the risk of malignancy for this diagnostic cytological category. METHODS From September 2016 to September 2018 in our hospital, patients diagnosed with Bethesda category IV (follicular neoplasm or suspicion of follicular neoplasm) thyroid nodules and underwent surgical excisions were include in the study. Quantification and analysis of tumor features were performed using CAD software. The US findings of the region of interest, including index of composition, margin, echogenicity, texture, echogenic dots indicative of calcifications, tall and wide orientation, and margin were calculated into computerized values. The nodules were further classified into American Thyroid Association (ATA) and American College of Radiology Thyroid Imaging Reporting & Data System (TI-RADS) categories. RESULTS 92 (10.1%) of 913 patients were diagnosed with Bethesda category IV thyroid nodules. In 65 patients, the histological type of the nodule was identified. The quantitative features between patients with benign and malignant conditions differed significantly. The presence of heterogeneous echotexture, blurred margins, or irregular margins was shown to have the highest diagnostic value. The risks of malignancy for nodules classified as having very low to intermediate suspicion ATA, non-ATA, and high suspicion ATA patterns were 9%, 35.7%, and 51.7%, respectively. Meanwhile, the risks of malignancy were 12.5%, 26.1%, and 53.8% for nodules classified as TIRADS 3, 4, and 5, respectively. When compared to human observers, among whom poor agreement was noticeable, the CAD software has shown a higher average accuracy. CONCLUSIONS For patients with nodules diagnosed as Bethesda category IV, the software-based characterizations of US features, along with the associated ATA patterns and TIRADS system, were shown helpful in the risk stratification of malignancy.
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Affiliation(s)
- Ming-Hsun Wu
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Kuen-Yuan Chen
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Min-Shu Hsieh
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Argon Chen
- Graduate Institute of Industrial Engineering, National Taiwan University, Taipei, Taiwan
- *Correspondence: Argon Chen,
| | - Chiung-Nien Chen
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
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Sakamoto A, Matsuzuka T, Yamaya Y, Suzuki S, Iwadate M, Suzuki S, Hashimoto Y, Suzuki O, Suzuki S, Yokoya S, Ohira T, Yasumura S, Ohto H, Kamiya K, Shimura H. Cytological examination of the thyroid in children and adolescents after the Fukushima Nuclear Power Plant accident: the Fukushima Health Management Survey. Endocr J 2020; 67:1233-1238. [PMID: 32814723 DOI: 10.1507/endocrj.ej20-0235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The Fukushima Daiichi Nuclear Power Plant accident occurred on March 11 2011, following the Great East Japan Earthquake and tsunami. Radioactive materials, including I-131, were released into the environment after the accident. Shortly after, the prefectural government initiated the Fukushima Health Management Survey for monitoring the long-term health conditions of the residents of Fukushima Prefecture. In the survey, thyroid ultrasonography was scheduled for all people aged 18 years or younger who were living in Fukushima Prefecture at the time of disaster. The total number of examinees was approximately 370,000 in the Preliminary Baseline Survey (PBLS), and 380,000 in the first Full-scale Survey (FSS). First, thyroid ultrasonography was performed as the Primary Examination. When a thyroid nodule that meets the fine needle aspiration cytology (FNAC) guideline is detected, thyroid FNAC is performed. By the end of June 2017, the cytological specimens of 187 examinees had been interpreted as Malignant or Suspicious for Malignancy (SFM). In this article, the cytological results of whole categories are presented using the criteria of The Bethesda System for Reporting Thyroid Cytopathology. The total numbers of examinees with SFM or Malignant in PBLS and at the first FSS were 106 (62.0%) and 71 (38.0%), respectively. The data of the cytological results of SFM and Malignant were already reported. However, this is the first report of cytological data from categories other than SFM and Malignant. The results of the current study will contribute to future research into the thyroid conditions of children and adolescents.
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Affiliation(s)
- Atsuhiko Sakamoto
- Thyroid Examination Expert Committee, Diagnostic Criteria Subcommittee for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Pathology and Laboratory Medicine, Omori Red Cross Hospital, Tokyo 143-8527, Japan
| | - Takashi Matsuzuka
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Yukie Yamaya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Satoru Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Manabu Iwadate
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Satoshi Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Yuko Hashimoto
- Department of Pathology, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Osamu Suzuki
- Department of Pathology, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Shinichi Suzuki
- Department of Thyroid and Endocrinology, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Susumu Yokoya
- The Thyroid and Endocrine Center, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Tetsuya Ohira
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Seiji Yasumura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Hitoshi Ohto
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Kenji Kamiya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Hiroki Shimura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Laboratory Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
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Ahn SH. Usage and Diagnostic Yield of Fine-Needle Aspiration Cytology and Core Needle Biopsy in Thyroid Nodules: A Systematic Review and Meta-Analysis of Literature Published by Korean Authors. Clin Exp Otorhinolaryngol 2020; 14:116-130. [PMID: 32550723 PMCID: PMC7904437 DOI: 10.21053/ceo.2020.00199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/19/2020] [Indexed: 11/25/2022] Open
Abstract
Objectives The usefulness of core needle biopsy (CNB) for the diagnosis of thyroid nodules remains controversial, and preferences vary across hospitals. The purpose of this study was to assess the actual use of CNB in Korea and to analyze the advantages and disadvantages of CNB through a systematic review and meta-analysis of papers published by Korean authors. Methods A meta-analysis of full-text publications published in English presenting data from Korea retrieved from the Embase literature database was performed. Results CNB led to a significantly lower proportion of non-diagnostic results than fine-needle aspiration (FNA). However, the frequency of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) did not decrease as a result of performing CNB in nodules with initial AUS/FLUS results, while it increased in consecutive cases. A subcategory analysis of AUS/FLUS showed that the increased frequency of AUS/FLUS findings on CNB was due to more frequent diagnoses of architectural atypia and follicular neoplasm, which resulted in a higher frequency of inconclusive findings in consecutive cases compared to FNA. Hospitals favoring CNB had a higher proportion of AUS/FLUS diagnoses. Although the complication rate did not differ significantly between CNB and FNA, serious complications of CNB did occur. Conclusion A reduced frequency of non-diagnostic results may be a definite advantage of CNB over FNA. However, the increased frequency of diagnoses of architectural atypia and follicular neoplasm should be considered when selecting CNB as a diagnostic tool.
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Affiliation(s)
- Soon-Hyun Ahn
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Wu Q, Li Y, Liu Y, Shen J, Wang Y, Yi X, Hu B. The value of conventional sonography and ultrasound elastography in decision-making for thyroid nodules in different categories of the Bethesda system for reporting thyroid cytopathology. Clin Hemorheol Microcirc 2020; 74:255-266. [PMID: 31683465 DOI: 10.3233/ch-180533] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Qiong Wu
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Yi Li
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Yilun Liu
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Jian Shen
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Yan Wang
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Xiaolei Yi
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Bing Hu
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
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Kuru B, Kefeli M. Risk factors associated with malignancy and with triage to surgery in thyroid nodules classified as Bethesda category IV (FN/SFN). Diagn Cytopathol 2018. [PMID: 29524316 DOI: 10.1002/dc.23923] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Thyroid nodules diagnosed as Bethesda category IV [follicular neoplasm/suspicious for follicular neoplasm (FN/SFN)] are recommended for surgery. However, only 10%-40% of these nodules turn out to be malignant on histopathological examination. Therefore, selection for surgery of nodules diagnosed as Bethesda category IV is important. We aimed to define predictive factors for malignancy and factors associated with triage to surgery. METHODS The records of all patients with nodules who underwent fine needle aspiration biopsy (FNAB) and classified by Bethesda reporting system as FN/SFN between January 2011 and July 2017 at our institution were reviewed. Univariate and multivariate analysis were performed to select independent factors associated with thyroid cancer, and with triage to surgery. Using independent risk factors for malignancy predictive index categories were created. RESULTS Among 6910 nodules that underwent FNAB, 180 (2.6%) were diagnosed as FN/SFN. Of the 180 patients, 139 (77%) underwent surgery with the associated malignancy rate of 37% (51/139) (upper boundary). Risk of malignancy among all FN/SFN nodules was 28% (lower boundary). Solid structure, size ≥ 4 cm, microcalcification, hypoechogenicity, and increased vascularization were found to be significant and independent risk factors associated for malignancy. None of the clinical and ultrasound factors were associated with triage to surgery. CONCLUSIONS Our findings showed that using predictive factors for malignancy in the Bethesda IV category as risk indices, 17% of patients who had nodules without any risk factors could be spared surgery. Predictive indices could be considered for the malignancy risk and for selection of patients for surgery.
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Affiliation(s)
- Bekir Kuru
- Department of General Surgery, Ondokuz Mayis University School of Medicine, Samsun, Turkey
| | - Mehmet Kefeli
- Department of Pathology, Ondokuz Mayis University School of Medicine, Samsun, Turkey
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Preliminary study of confounding factors of elastography and the application of fine-needle aspiration in thyroid nodules with indeterminate elastography. Sci Rep 2017; 7:18005. [PMID: 29269830 PMCID: PMC5740129 DOI: 10.1038/s41598-017-18121-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 12/05/2017] [Indexed: 11/13/2022] Open
Abstract
To investigate confounding factors of real-time ultrasound elastography (RTE) and to evaluate the diagnostic performance of ultrasound (US)-guided FNA for thyroid nodules with indeterminate elastography compared with conventional US. This study included 244 nodules with indeterminate elastography caused by several confounding factors (large or small size, deep location, isthmic or paratracheal location, calcification, thyroiditis, conflicting results between conventional US and RTE), and corresponding prevalences of malignancy were calculated. Additionally, conventional US and US-FNA data were collected and compared. The prevalences of malignancy of confounding factors were 74.1%, 75.0%, 73.3%, 46.2%, 27.3%, and 53.2%, respectively. Sonographic features (border, margin, echogenicity, echohomogeneity, and microcalcification) were significantly different between benign and malignant thyroid nodules (p < 0.05), and most of them exhibited good sensitivity but unsatisfactory specificity and accuracy. While US-FNA exhibited better performance with a sensitivity of 96.9%, a specificity of 99.1% and an accuracy of 98.0% in the diagnosis of malignancy. Given that indeterminate RTE is inevitable with a rather high malignant risk due to several confounding factors, our study revealed that US-FNA was a valuable tool in nodules with indeterminate elastography by increasing the detection rate of thyroid malignancy.
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Wang D, He YP, Zhang YF, Liu BJ, Zhao CK, Fu HJ, Wei Q, Xu HX. The diagnostic performance of shear wave speed (SWS) imaging for thyroid nodules with elasticity modulus and SWS measurement. Oncotarget 2017; 8:13387-13399. [PMID: 28077785 PMCID: PMC5355106 DOI: 10.18632/oncotarget.14534] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 12/29/2016] [Indexed: 01/11/2023] Open
Abstract
To evaluate the diagnostic performance of a new technique of shear wave speed (SWS) imaging for the diagnosis of thyroid nodule with elasticity modulus and SWS measurement. 322 thyroid nodules in 322 patients (216 benign nodules, 106 malignant nodules) were included in this study. All the nodules received conventional ultrasound (US) and SWS imaging (Aplio500, Toshiba Medical Systems, Japan) before fine-needle aspiration (FNA) and/or surgery. The values of E-max and E-mean with elastic modulus (61.27 ± 36.31 kPa and 31.89 ± 19.11 kPa) or SWS (4.45 ± 1.49 m/s and 3.26 ± 2.71 m/s) in malignant nodules were significantly higher than those in benign lesions (29.18 ± 18.62 kPa and 15.85 ± 6.96 kPa, or 2.98 ± 0.85 m/s and 2.19 ± 0.42 m/s, all P < 0.001). No significant differences in area under the curve (AUC) between the SWS imaging parameters were found (all P > 0.05). In multivariate logistic regression analysis, E-max (m/s) with SWS was identified to be the strongest independent predictor for malignant nodules (odds ratio [OR] = 16.760), followed by poorly-defined margin (OR = 7.792), taller-than-wide shape (OR = 3.160), micro-calcification (OR = 2.422), and E-max (kPa) with elastic modulus (OR = 0.914). The AUC was 0.813 for E-max with SWS (m/s) and 0.796 for E-max with elastic modulus (kPa). With cut-off SWS value of 3.52 m/s in E-max, sensitivity of 69.8%, specificity of 81.5%, and accuracy of 77.6% were achieved. SWS imaging is a valuable tool in predicting thyroid malignancy. E-max with SWS measurement is the strongest independent predictor for thyroid malignancy.
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Affiliation(s)
- Dan Wang
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200072, China.,Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China
| | - Ya-Ping He
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200072, China.,Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China
| | - Yi-Feng Zhang
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200072, China.,Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China
| | - Bo-Ji Liu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200072, China.,Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China
| | - Chong-Ke Zhao
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200072, China.,Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China
| | - Hui-Jun Fu
- Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China.,Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Qing Wei
- Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China.,Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Hui-Xiong Xu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200072, China.,Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Center for Thyroid Diseases, Shanghai 200072, China
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Słowińska-Klencka D, Wojtaszek-Nowicka M, Sporny S, Woźniak-Oseła E, Popowicz B, Klencki M. The predictive value of sonographic images of follicular lesions - a comparison with nodules unequivocal in FNA - single centre prospective study. BMC Endocr Disord 2016; 16:69. [PMID: 27903245 PMCID: PMC5131422 DOI: 10.1186/s12902-016-0151-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/26/2016] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND To determine the diagnostic efficacy of ultrasonographic malignancy risk features (UMRFs) in follicular lesions (FL) in a population with low risk of malignancy in FL and to compare it with a similar analysis in a group of patients with unequivocal cytology (UC): benign lesion (BL) or malignant neoplasm (MN). METHODS Presence of UMRFs (hypoechogenicity, solid echostructure, taller-than-wide shape, pathological vascularization, irregular margins, microcalcifications and macrocalcifications) and their sets were assessed in 322 FL: 202 follicular lesions of undetermined significance (FLUS) and 120 suspicious for follicular neoplasm (SFN) and 300 nodules with UC: 200 BL and 100 MN, subsequently evaluated histopathologically. RESULTS Cancers were confirmed in 100% nodules in MN group (89.0% of them were papillary carcinomas - PTC), in 6.4% FLUS nodules (69.2% PTC), and in 10.8% SFN nodules (30.8% PTC). In the UC group all UMRFs occurred more frequently in cancers than in benign lesions. In the FL group only calcifications were found in cancers more frequently - macro and microcalcifications together: 34.6 vs. 11.5% (p = 0.001) and isolated macrocalcifications: 26.0 vs. 6.8% (p = 0.001); the presence of those features increased the basic risk of malignancy in FL more than 2 times. The presence of at least 2 of the following URMFs: hypoechogenicity, solid echostructure, any type of calcifications and suspected shape, additionally improved sensitivity. CONCLUSIONS Evaluation of UMRFs in FLs is less effective than in nodules with UC, and its effectiveness decreases parallel to the decrease in percentage of PTCs among malignant neoplasms and to the increase of the percentage of adenomas among benign nodules. The presence of macrocalcifications in such FLs significantly increases the basic risk of malignancy in these nodules.
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Affiliation(s)
- Dorota Słowińska-Klencka
- Department of Morphometry of Endocrine Glands, Chair of Endocrinology, Medical University of Lodz, Sterlinga Str 5, Łódź, 91-425, Poland.
| | - Martyna Wojtaszek-Nowicka
- Department of Morphometry of Endocrine Glands, Chair of Endocrinology, Medical University of Lodz, Sterlinga Str 5, Łódź, 91-425, Poland
| | - Stanisław Sporny
- President Stanisław Wojciechowski Higher Vocational State School in Kalisz, Kalisz, Poland
| | - Ewa Woźniak-Oseła
- Department of Morphometry of Endocrine Glands, Chair of Endocrinology, Medical University of Lodz, Sterlinga Str 5, Łódź, 91-425, Poland
| | - Bożena Popowicz
- Department of Morphometry of Endocrine Glands, Chair of Endocrinology, Medical University of Lodz, Sterlinga Str 5, Łódź, 91-425, Poland
| | - Mariusz Klencki
- Department of Morphometry of Endocrine Glands, Chair of Endocrinology, Medical University of Lodz, Sterlinga Str 5, Łódź, 91-425, Poland
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Seong M, Shin JH, Hahn SY. Ultrasound Strain Elastography for Circumscribed Solid Thyroid Nodules without Malignant Features Categorized as Indeterminate by B-Mode Ultrasound. ULTRASOUND IN MEDICINE & BIOLOGY 2016; 42:2383-2390. [PMID: 27451050 DOI: 10.1016/j.ultrasmedbio.2016.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 03/31/2016] [Accepted: 06/06/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to evaluate the diagnostic performance of ultrasound strain elastography (USE) for circumscribed solid thyroid nodules without malignant or benign features seen on US. This retrospective study included 197 thyroid nodules in 196 patients who underwent USE with color mapping and strain ratio measurement between 2010 and 2014. Of the 197 nodules, 24 (12.2%) were malignant. No significant differences in color mapping or strain ratio were observed between benign and malignant nodules. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy were 29.2% (95% confidence interval [CI]: 13.8%-49.4%), 77.5% (95% CI: 75.3%-80.3%), 15.2% (95% CI: 7.2%-25.8%), 88.7% (95% CI: 86.3%-92.0%), and 71.6% (95% CI: 67.8%-76.5%) for color mapping and 50.0% (95% CI: 30.%-69.5%), 57.2% (95% CI: 54.5%-59.9%), 14.0% (95% CI: 8.5%-18.4%), 89.2% (95% CI: 85.0%-93.4%) and 56.3% (95% CI: 51.6%-61.1%) for strain ratio measurement, respectively. USE with color mapping and strain ratio measurement has a limited ability to differentiate benign from malignant nodules for circumscribed solid thyroid nodules without definite malignant features categorized as indeterminate by B-mode US.
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Affiliation(s)
- Minjung Seong
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jung Hee Shin
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - Soo Yeon Hahn
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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