Real-Time Elastography in the Evaluation of Diffuse Thyroid Disease: A Study Based on Elastography Histogram Parameters

Yoon, Jung Hyun; Yoo, Jeong Seon; Kim, Min Jung; Moon, Hee Jung; Lee, Hye Sun; Seo, Joobeom; Park, Hye Young; Park, Woon Ju; Kwak, Jin Young

doi:10.1016/j.ultrasmedbio.2014.03.033

Cited by 23 publications

(14 citation statements)

References 28 publications

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“…Additionally, the characterization and/or differentiation of pathological tissues by US elastography have increasingly been evaluated by numerous up-to-date studies that aimed to reveal the diagnostic efficacy of US elastography in differentiating benign or malignant conditions. Although the visceral organs, such as the liver [8], kidney [9], spleen [10], pancreas [11], uterus [12], and prostate [13], were the main subjects in these studies, the utility of US in assessing pathologies of the thyroid glands [14][15][16] and breast tissue [17][18][19] have also been evaluated by a substantial number of researchers. In comparison, only a limited number of studies in the literature have reported the validity of using US elastography in clinical practice for patients with musculoskeletal issues.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Radiation Force Impulse (ARFI) elastography quantification of muscle stiffness over a course of gradual isometric contractions: a preliminary study.

et al. 2015

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Aims: To evaluate the feasibility of quantitative analysis of muscle stiffness by Acoustic Radiation Forced Impulse (ARFI) elastography over a course of graduate isometric voluntary contractions. Material and methods: The stiffness of the bilateral biceps muscle of 13 healthy volunteers was measured in real time by ARFI elastography, while the forearm was in neutralextended position, 90 degree self-flexed positions and 90 degree self-flexed position, with altered weights ranging from 1 to 8 kg placed on flattened palmar surfaces consecutively. The determined increases in biceps muscle stiffness were measured for both arms and correlated with the loadings weights adopted at progressive trial stages. Results: The mean shear wave velocity (SWV) values of biceps muscles in a neutral position, in 90 degree flex position and 90 degree flex position with 1 to 8 kg weights on palmar surfaces were 2.162±0.302 m/sec, 3.382±0.581 m/sec, and 3.897±0.585 to 5.562±0.587 m/sec, respectively. Significant correlations between the muscle SWV values and related palmar weights and between the SWV values of right and left sides at different trial stages were identified (r=0.951 and r=0.954, respectively). A mutual propagation path of deep regions to entire areas was described to account for the distribution of increase in stiffness with increases in palmar weights. The confidence of method regarding inter-observer difference was confirmed by the correlation analyses of the results (r=0.998). Conclusions: ARFI elastography is a feasible imaging modality for quantifying the stiffness of isometrically voluntarily contracting muscles.Keywords: Acoustic Radiation Force Impulse, elastography, muscle stiffness Acoustic Radiation Force Impulse (ARFI) elastography quantification of muscle stiffness over a course of gradual isometric contractions: a preliminary study.

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Section: Introductionmentioning

confidence: 99%

Acoustic Radiation Force Impulse (ARFI) elastography quantification of muscle stiffness over a course of gradual isometric contractions: a preliminary study.

et al. 2015

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“…Qualitative analysis of diffuse thyroid disease can be performed by grayscale US imaging 1 , 7 , 8 . It can also be analyzed quantitatively by elastography; previous studies provided somewhat superior diagnostic performances of elastography for diagnosis of diffuse thyroid disease 3 , 4 , 9 . However, US examinations are real‐time studies, which are entirely dependent on the performer; thus, subjectivity and variability are inevitable in US assessment 3 , 10 – 12 .…”

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confidence: 99%

Evaluation of Underlying Lymphocytic Thyroiditis With Histogram Analysis Using Grayscale Ultrasound Images

Kim

et al. 2016

J of Ultrasound Medicine

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“…To overcome these limitations, there have been many quantitative studies that have focused on diagnosing DTD with USE (US elastography) as well as gray-scale US [1,8,9,11,[20][21][22] (Table 5) and both methods have shown good diagnostic performances. The A z value of the mean was 0.737 in a study using USE [9] and 0.8 [21] in a study using conventional US combined with USE utilizing shear waves. The study which investigated and compared the diagnostic performance of conventional US and USE using shear waves to diagnose DTD revealed that USE using shear waves had a higher A z value (0.619) than conventional gray-scale US (A z ¼0.585) [8].…”

Section: Discussionmentioning

confidence: 99%

Histogram and gray level co-occurrence matrix on gray-scale ultrasound images for diagnosing lymphocytic thyroiditis

Shin

Yoo

Kwon

et al. 2016

Computers in Biology and Medicine

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Real-Time Elastography in the Evaluation of Diffuse Thyroid Disease: A Study Based on Elastography Histogram Parameters

Cited by 23 publications

References 28 publications

Acoustic Radiation Force Impulse (ARFI) elastography quantification of muscle stiffness over a course of gradual isometric contractions: a preliminary study.

Acoustic Radiation Force Impulse (ARFI) elastography quantification of muscle stiffness over a course of gradual isometric contractions: a preliminary study.

Evaluation of Underlying Lymphocytic Thyroiditis With Histogram Analysis Using Grayscale Ultrasound Images

Histogram and gray level co-occurrence matrix on gray-scale ultrasound images for diagnosing lymphocytic thyroiditis

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