Qualitative and Semiquantitative Evaluations of Solid Breast Lesions by Sonoelastography

Yerli, Hasan; Yilmaz, Tugba Han; Kaskati, Tolga; Gülay, Hüseyin

doi:10.7863/jum.2011.30.2.179

Cited by 88 publications

(70 citation statements)

References 22 publications

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“…Yerli et al [54] presented a study of 78 lesions (62 benign, 16 malignant; confirmed by histological analysis) submitted to US examination and RTE to evaluate if the combination of elastographic score and strain index was useful in differentiating benign from malignant lesions. Sensitivity and specificity were 80% and 95%, respectively, related to the elastographic score, 87.5% and 72.6%, respectively, related to US and 80% and 93%, respectively, related to strain index using a cut-off value of 3.52.…”

Section: Real-time Elastography (Rte)mentioning

confidence: 99%

Breast elastography: A literature review

Goddi¹,

Bonardi

Alessi

2012

Journal of Ultrasound

141

129

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KEYWORDS Sonoelastography; Breast elastography; Breast lesions.Abstract Breast elastography is a new sonographic imaging technique which provides information on breast lesions in addition to conventional ultrasonography (US) and mammography. Elastography provides a noninvasive evaluation of the stiffness of a lesion. Today, two technical solutions are available for clinical use: strain elastography and shear wave elastography. Initial evaluations of these techniques in clinical trials suggest that they may substantially improve the possibility of differentiating benign from malignant breast lesions thereby limiting recourse to biopsy and considerably reducing the number of benign breast biopsy diagnoses. This article reviews the basics of this technique, how to perform the examination, image interpretation and the results of major clinical studies. Although elastography is easy to perform, training and technical knowledge are required in order to obtain images permitting a correct interpretation. This paper will highlight the technique and point out common pitfalls.Sommario L'elastosonografia mammaria è una nuova tecnica di imaging a ultrasuoni che fornisce informazioni aggiuntive sulle lesioni della mammella rispetto all'ecografia e alla mammografia. Consente una valutazione non invasiva della rigidità tessutale di una lesione. Sono attualmente disponibili due soluzioni tecniche per uso clinico: l'elastografia con strain e l'elastografia shear wave. I primi studi clinici di valutazione di queste tecniche suggeriscono che esse possano migliorare la caratterizzazione delle lesioni mammarie differenziando quelle benigne dalle maligne e riducendo in modo sostanziale il numero di biopsie per lesioni benigne. Questo articolo rivisita le basi tecniche, i criteri interpretativi delle immagini, i principali studi clinici e le possibili cause di errore. Per quanto l'elastosonografia sia di facile esecuzione, richiede tuttavia un training e delle conoscenze tecniche adeguate per ottenere immagini correttamente interpretabili. ª

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Section: Real-time Elastography (Rte)mentioning

confidence: 99%

Breast elastography: A literature review

Goddi¹,

Bonardi

Alessi

2012

Journal of Ultrasound

141

129

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“…Despite the high sensitivity of these radiological techniques, the accuracy of predicting histopathology of salivary gland masses is lower than expected as morphologic characteristics of benign and malignant lesions may overlap frequently (1)(2)(3)(4)(5)(6)(7). In addition, they have several limitations in daily practice.…”

Section: Introductionmentioning

confidence: 99%

Sonoelastographic Features of Major Salivary Gland Tumors and Pathology Correlation

Farasat¹,

Ovalı

Düzgün

et al. 2017

Iran J Radiol

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Objectives: To investigate the diagnostic efficiency of elastography in differentiation of malignant and benign tumors by evaluating salivary gland masses in means of their elastography scores and strain ratios. Patients and Methods: Twenty five patients with salivary gland mass lesions were detected through B-mode ultrasonography, Doppler ultrasonography, strain elastography and their strain ratios were calculated. The results were compared with histopathologic results. Results: Twenty five patients had 27 lesions consisting of seven malignant and 20 benign lesions. Mann Whitney U test, ROC analysis, Fisher test and Chi square tests were used statistically. Mean strain rates were calculated as 2.26 ± 0.29 in the benign group and 2.02 ± 0.59 in the malignant group. There was no statistically significant difference between the two groups (P = 0.698). Elastography score was calculated as mean 2.4 ± 0.94 in the benign group and mean 2.28 ± 0.38 in the malignant group. There was no statistically significant difference between the two groups (P = 0.708). Accepting the strain rate as 0.89; sensitivity of elastography in differentiating malignant from benign lesions is 71%, and the specificity is 50%. However, the area under the ROC curve is 0.55, which is not statistically significant (P = 0.699). Conclusion: Elastography is a supporting method for B-mode ultrasonography in the differentiation of benign and malignant salivary gland masses. However, the overlap of elastographic findings is evident in benign and malignant masses. Care should be taken to have tissues with similar stiffness under the reference tissue and the lesions in elastographic evaluation of the superficial mass. We have not met a study that has pointed out the importance of stiffness of the tissue located beneath the lesion that may affect the elastography results in the literature. In this respect our study is unique.

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“…The technique has been used to assess the hardness of various normal and abnormal tissues, [1][2][3][4][5][6] and to differentiate malignant from benign lesions in the breast, prostate, thyroid, lymph nodes and salivary glands. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Ultrasound elastography uses either strain or shear wave velocity. 25,26 In strain elastography, tissue strain induced by compression with the probe is used as an indicator of hardness.…”

Section: Introductionmentioning

confidence: 99%

Effects of compression force on elasticity index and elasticity ratio in ultrasound elastography

Imaizumi¹,

Sasaki²,

Sakamoto³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: The purpose of this study was to investigate the relationship between compression force and hardness values in ultrasound elastography. Methods: Ultrasound elastography was performed using an elastography phantom, comprising inclusions with different elasticities and echogenicities. The compression force was set to approximately 100 gw (light force) and approximately 500 gw (heavy force). The elasticity index (EI) of the inclusion was measured. The EI was a relative hardness value of a structure within an elastographic image. Similarly, the EI of the background was measured as a reference. The elasticity ratio (ER) was calculated as the EI of the inclusion divided by the EI of the reference. Results: The hardness of the phantom could be discerned with both the EI and ER, regardless of the compression force. The EI and ER with heavy force tended to be higher than those with light force, but the difference was not significant. A strong correlation was observed between the EI and ER of soft structures, whereas the correlation between the EI and ER of hard structures was weak, and the ER values varied widely.

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Qualitative and Semiquantitative Evaluations of Solid Breast Lesions by Sonoelastography

Abstract: After 5-point scoring with sonoelastography, additional measurement with the strain index is not mandatory for differentiating between benign and malignant breast masses.

Cited by 88 publications

References 22 publications

Breast elastography: A literature review

Breast elastography: A literature review

Sonoelastographic Features of Major Salivary Gland Tumors and Pathology Correlation

Effects of compression force on elasticity index and elasticity ratio in ultrasound elastography

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