The role of the resistive index in Hashimoto's thyroiditis: a Sonographic pilot study in children

Sarıkaya, Baran; Demirbilek, Hüseyin; Akata, Deniz; Kandemir, Nurgün

doi:10.6061/clinics/2012(11)05

Cited by 11 publications

(8 citation statements)

References 28 publications

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“…Nevertheless, it has been reported that the investigation of thyroid parenchymal vascularity using Doppler US is beneficial in diagnosing thyroid parenchymal diseases. The diagnostic performance of color and power Doppler sonography and the influence of resistivity index detected by color Doppler US in the assessment of thyroid parenchyma have been studied in many trials (17,18,19). Moreover, some studies have declared that color Doppler techniques have substantial restrictions in evaluating vascularity (6,20,21).…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, some studies have declared that color Doppler techniques have substantial restrictions in evaluating vascularity (6,20,21). SMI remarkably reduces motion artifacts and allows the low-speed blood flow to be displayed in the capillaries (6,19). Conventional Doppler techniques have also been shown to have less sensitivity for detecting abnormal vascularity in thyroid parenchymal diseases than SMI (8,9,10).…”

Section: Discussionmentioning

confidence: 99%

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Quantitative analysis of thyroid gland blood supply in children and adolescents

Uysal

Öztürk

Bayramoğlu³

et al. 2022

Genel Tıp Dergisi

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Aim: This study aims to determine the reference vascularization index (VI) values for the thyroid gland in healthy children and adolescents using Super microvascular imaging (SMI). It was also investigated that the correlation between thyroid vascularity and thyroid lobe volumes, age, sex, weight, height, and body mass index (BMI). Material and Methods: One hundred and twenty-four children and adolescents without a thyroid gland and systemic disease, and medical history affecting the thyroid gland were included in the study. Participants with abnormal thyroid function tests were excluded from the study. Age, gender, height, and weight were recorded before ultrasonography and SMI examinations. After the grayscale ultrasonography, VI values for each participant were obtained using SMI. The association between the VI and thyroid lobe volumes, age, sex, weight, height, and BMI values were analyzed.Results: Median values of the age, height, weight, and BMI of 124 participants were 10 (6-12) years, 130 (120-152) cm, 30.5 (21-47) kg, 17.55 (15.37-21.14) kg/m2, respectively. Median (IQR) values of the left and right thyroid lobe volumes were 1.4 (0.9-2.07) mL and 1.9 (1.2-3.07) mL, respectively, and the mean VI value was 5.31±1.84%. There was no significant association of VI values with the thyroid lobe volume. Also, there was no relation between the mean VI values and the auxological parameters. Conclusion:This study defines the VI values of thyroid glands in healthy adolescents and children. It also demonstrated no correlation between VI values of the thyroid gland and thyroid lobe volume, sex, age, weight, height, and BMI.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Quantitative analysis of thyroid gland blood supply in children and adolescents

Uysal

Öztürk

Bayramoğlu³

et al. 2022

Genel Tıp Dergisi

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“…Increased vascularity in HT was previously reported. [33,34] Ceylan et al [35] reported hypervascularity in 85% of their patients with HT. The presence of HT with hypervascularity leads to the low specificity of CDF in differentiation between HT and GD.…”

Section: Discussionmentioning

confidence: 99%

Value of the New Elastography Technique using Acoustic Radiation Force Impulse in Differentiation between Hashimoto’s Thyroiditis and Graves’ Disease

Hefeda

2019

JCIS

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Background and Aim: This study was performed to evaluate the role and accuracy of shear wave elastography in the differentiation between Graves’ disease (GD) and Hashimoto’s thyroiditis (HT), in comparison with the B-mode ultrasound and color Doppler ultrasound. Materials and Methods: This study was non-randomized prospective study. The study included 30 patients with GD, 65 patients with HT, and 35 patients with normal thyroid glands. Assessment of ultrasonographic criteria, color Doppler flow pattern, and shear patterns differed significantly between the control group and the group of diffuse thyroid disease (P < 0.001). The most specific sign for diagnosing HT was nodularity (97.87%), and the most sensitive sign was coarse echotexture (81.54%). Color Doppler flow (CDF) showed sensitivity of 91.8%, specificity of 56.92%, positive predictive value of 52.54%, negative predictive value of 92.5%, and diagnostic accuracy of 68.69% in the differentiation between GD and HT. The mean shear wave velocity (SWV) was 2.61 ± 0.32 m/s in the GD group (range: 2.1–3.21 m/s), 2.85 ± 0.52 m/s in the HT group (range: 2.31–3.82 m/s), and 1.75 ± 0.37 m/s in the control group (range: 1.24–2.36 m/s). The mean SWVs in the GD and HT groups were significantly higher than that in the control group (P < 0.001). The mean SWV in the HT group was higher than that in the GD group (P = 0.03). Conclusion: Quantitative and qualitative SWE is useful for diagnosing diffuse thyroid disease and evaluating the degree of fibrosis in autoimmune thyroiditis. However, acoustic radiation force impulse techniques cannot differentiate between HT and GD reliably.

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“…We found one study that evaluated RI in the diagnosis of Hashimoto's disease, in which results were compatible with our study. [ 21 ]…”

Section: Discussionmentioning

confidence: 99%

Evaluation of parenchymal thyroid diseases with multiparametric ultrasonography

Yıldırım

Alış

Bakır

et al. 2017

Indian Journal of Radiology and Imaging

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Aim:Differential diagnosis of parenchymal thyroid diseases by gray-scale ultrasound is quite difficult for a radiologist as the findings are very similar to each other. In this study we aimed to assess some quantitative spectral Doppler parameters, resistivity index (RI), acceleration time (AT), and quantitative elastography [shear wave velocity (SWV)] together to show their reliability for differential diagnosis of parenchymal thyroid diseases.Materials and Methods:We retrospectively reviewed findings of 227 patients (179 females, 48 males) that underwent spectral Doppler ultrasound and acoustic radiation force impulse between October 2013 and March 2016. Ages of the patients were between 18 and 74 years (39.52 ± 12.67). Based on clinical and laboratory findings, patients were divided into five groups (N: Normal, EH: Early Hashimoto, H: Late Hashimoto, M: Nodular Thyroid Disease, HM: Hashimoto + Nodular Thyroid Disease). Detailed statistical analyses were done on parameters such as age, gender, volume information, and RI, AT (ms), SWV (m/s).Results:No significant effect of gender or volume on the differentiation of disease pattern (Chi-square test: P = 0.306, Kruskal-Wallis test: P = 0.290) was found in this study. RI (0.41 ± 0.06) and SWV values (1.19 ± 0.18 m/s) were the lowest. AT values (>55 ms) were the highest in EH group (area under the curve: 0.913). Existence of H decreased RI and SWV values, while it extended AT in a different thyroid disease.Conclusion:Thyroid parenchymal diseases could be classified and differentiated from each other by measuring RI, AT, and SWV values quantitatively. So, in suspicious cases, these parameters could be a reliable asset for differential diagnosis.

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The role of the resistive index in Hashimoto's thyroiditis: a Sonographic pilot study in children

Cited by 11 publications

References 28 publications

Quantitative analysis of thyroid gland blood supply in children and adolescents

Quantitative analysis of thyroid gland blood supply in children and adolescents

Value of the New Elastography Technique using Acoustic Radiation Force Impulse in Differentiation between Hashimoto’s Thyroiditis and Graves’ Disease

Evaluation of parenchymal thyroid diseases with multiparametric ultrasonography

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