Diagnosis of solid breast lesions by elastography 5-point score and strain ratio method

2012 ◽  
Vol 81 (11) ◽  
pp. 3245-3249 ◽  
Author(s):  
Qiao Ling Zhao ◽  
Li Tao Ruan ◽  
Hua Zhang ◽  
Yi Min Yin ◽  
Shao Xue Duan
Keyword(s):  
Strain Ratio ◽  
Ratio Method ◽  
Breast Lesions ◽  
Point Score

scholarly journals Strain Elastography: A Valuable Additional Method to BI-RADS?

2018 ◽  
Vol 39 (05) ◽  
pp. 526-534 ◽  
Author(s):  
Xin-Bao Zhao ◽  
Ji-Yi Yao ◽  
Xin Zhou ◽  
Shao-Yun Hao ◽  
Wen Mu ◽  
...  
Keyword(s):  
Classification System ◽  
Diagnostic Performance ◽  
Final Analysis ◽  
Daily Practice ◽  
Strain Ratio ◽  
Final Diagnosis ◽  
Ratio Method ◽  
Breast Lesions ◽  
Sensitivity Specificity ◽  
Histological Results

Abstract Background Breast lesions classified as BI-RADS-US 3 are probably benign and observation was recommended, while a considerable number of BI-RADS-US 4 lesions were benign, resulting in excessive biopsies. We focus exclusively on BI-RADS-US 3 and 4 lesions and hypothesize that improved diagnostic performance can be achieved by integrating real-time elastography (strain ratio) into the BI-RADS-US classification system. Method From April 2010 to September 2015, 1071 lesions were included in the final analysis. After the conventional ultrasound examination, the BI-RADS-US (2013) classification was used to evaluate the lesions. Then the strain ratios were calculated, and the final diagnosis was made on the basis of histological results. The sensitivity, specificity, accuracy, PPV and NPV were calculated and the AUCs were compared. Additionally, an analysis of the diagnostic performance expressed by the pretest and posttest probability of disease (POD) was performed in BI-RADS-US 3 and 4A lesions. Results With the cutoff point of 2.98, the sensitivity, specificity and accuracy of the strain ratio method were 86.9 %, 86.6 % and 82.6 %, respectively. In BI-RADS-US 3 lesions, a suspicious strain ratio significantly modified the POD from 1.3 % to a posttest POD of 29.8 %. In BI-RADS-US 4A lesions, a suspicious strain ratio significantly modified the POD from 8.5 % to a posttest POD of 48.7 %. Conclusion Ultrasonographic elastography (strain ratio) yields additional diagnostic information in the evaluation of BI-RADS-US 3 and 4 breast lesions. The strain ratios should be integrated into the BI-RADS-US classification system and into daily practice.

scholarly journals Comparison of the SRmax, SRave, and color map of strain-elastography in differentiating malignant from benign breast lesions

2018 ◽  
Vol 60 (1) ◽  
pp. 28-34
Author(s):  
Jin Hee Moon ◽  
Sung Hye Koh ◽  
Sun-Young Park ◽  
Ji-Young Hwang ◽  
Ji Young Woo
Keyword(s):  
Statistical Significance ◽  
Roc Curves ◽  
Strain Ratio ◽  
Breast Lesions ◽  
Strain Elastography ◽  
Average Value ◽  
Maximum Value ◽  
Significant Difference ◽  
Malignant Breast ◽  
Color Map

Background The maximum value of the strain ratio (SR) is a newly developed measure in strain-elastography. Purpose To prospectively compare the diagnostic performance of three different measures of strain-elastography, the maximum value of the SR (SRmax), the average value of the SR (SRave), and the color map, for differentiating benign and malignant breast lesions. Material and Methods We obtained the SRmax and SRave of 314 lesions from 290 patients with the tissue to nodule SR and color map using a five-degree scoring system. The diagnostic performances of the SRmax, SRave, and color map were compared after obtaining the area under the receiver operating characteristic (ROC) curves (AUCs) of each parameter. Results The AUC of the SRmax (0.7674) was larger than the AUCs of the SRave (0.7138) and color map (0.6324), with statistical significance ( P = 0.0383 for SRmax vs. SRave, P = 0.0000 for SRmax vs. color map). The AUC of the SRave was larger than that of the color map; however, there was no significant difference. The optimal cut-off point of the SRmax that balanced the sensitivity (91.12%) and specificity (50.81%) was 5.16. Conclusion The SRmax is a more reliable diagnostic tool than the SRave and color map for differentiating benign and malignant breast lesions.

ROLE OF ULTRASONOGRAPHIC ELASTOGRAPHY IN THE DIFFERENTIAL DIAGNOSIS OF BREAST MASSES AND ITS CONTRIBUTION TO CLASSICAL ULTRASONOGRAPHIC EVALUATION

2021 ◽  
pp. 48-50
Author(s):  
Ashok Kumar Verma ◽  
Rashmi Rashmi ◽  
Rakesh Kumar Verma ◽  
Mahendra Kumar Pandey
Keyword(s):  
Breast Cancer ◽  
Breast Imaging ◽  
Diagnostic Performance ◽  
Breast Biopsy ◽  
Strain Ratio ◽  
Breast Lesions ◽  
Breast Masses ◽  
Screening Programs ◽  
Imaging Department ◽  
Malignant Breast

Introduction: India is experiencing an unprecedented rise in the number of breast cancer cases across all sections of society. Breast cancer is now the most common malignancy in women and the second leading cause of cancer- related mortality. Breast cancer is quite easily and effectively treated, provided it is detected in it's early stages. There is a drastic drop in the survival rates when women present with advanced stage of breast cancer, regardless of the setting. Unfortunately, women in resource-poor and developing countries, like India, generally present at a later stage of disease than women elsewhere, partly due to the absence of effective awareness programs and partly due to the lack of proper mass screening programs Aims And Objectives: The diagnostic performance of elastography in differentiating benign from malignant breast lesions. To assess whether elastography has the potential to reduce the need for breast biopsy /FNAC. Cut off value of Strain Ratio for benign versus malignant breast lesions. Further characterize BI-RADS 3 lesions using elastography Materials And Methods: The study was approved by the GSVM MEDICAL COLLEGE AND LLR HOSPITAL Ethics Committee. All patients that presented to the Radiology and Imaging Department of LLR HOSPITAL for diagnostic work up for breast pathology were included in the study. After obtaining a written and signed informed consent from all patients, they were subjected to conventional B-Mode ultrasonography followed by elastography. All diagnostic breast imaging was done with Samsung RS80A ultrasound machine using linear array transducer of frequency 5-12MHz.Observations & Results: The elastography patterns for each lesion were assessed and documented in color scale. Color images were constructed automatically and displayed as a color-overlay on the B-mode image. The color pattern of each lesion was then evaluated on a scale of 1-5 according to the Tsukuba elasticity scoring system. Conclusion: Strain Ratio cutoff of 3.3 is a sensitive parameter to differentiate benign and malignant breast lesions. Elastography is a specic test for differentiating benign and malignant breast lesions. The combined use of elasticity score, strain ratio and B- Mode sonographyincreases the diagnostic performance in distinguishing benign from malignant breast masses.

Gland/Lesion Strain Ratio for Predicting Malignancy of Solid Breast Lesions in Chinese Patients

2019 ◽  
Vol 22 (3) ◽  
pp. 188-196
Author(s):  
JAWK Tang ◽  
JCH Tse ◽  
JHM Cheng ◽  
AYT Lai ◽  
AKY Au ◽  
...  
Keyword(s):  
Strain Ratio ◽  
Chinese Patients ◽  
Breast Lesions

Significant Differentiation of Focal Breast Lesions: Raw Data-Based Calculation of Strain Ratio

2011 ◽  
Vol 33 (04) ◽  
pp. 372-379 ◽  
Author(s):  
T. Fischer ◽  
U. Peisker ◽  
S. Fiedor ◽  
T. Slowinski ◽  
P. Wedemeyer ◽  
...  
Keyword(s):  
Strain Ratio ◽  
Breast Lesions ◽  
Raw Data ◽  
Significant Differentiation

A qualitative and quantitative assessment of simultaneous strain, shear wave, and point shear wave elastography to distinguish malignant and benign breast lesions

2020 ◽  
pp. 028418512096142
Author(s):  
Yasemin Altıntas ◽  
Mehmet Bayrak ◽  
Ömer Alabaz ◽  
Medih Celiktas
Keyword(s):  
Shear Wave ◽  
Diagnostic Performance ◽  
Area Under The Curve ◽  
Shear Wave Elastography ◽  
Strain Ratio ◽  
Breast Lesions ◽  
Breast Masses ◽  
Malignant Breast ◽  
The Mean ◽  
Us Elastography

Background Ultrasound (US) elastography has become a routine instrument in ultrasonographic diagnosis that measures the consistency and stiffness of tissues. Purpose To distinguish benign and malignant breast masses using a single US system by comparing the diagnostic parameters of three kinds of breast elastography simultaneously added to B-mode ultrasonography. Material and Methods A total of 163 breast lesions in 159 consecutive women who underwent US-guided core needle biopsy were included in this prospective study. Before the biopsy, the lesions were examined with B-mode ultrasonography and strain (SE), shear wave (SWE), and point shear wave (STQ) elastography. The strain ratio was computed and the Tsukuba score determined. The mean elasticity values using SWE and STQ were computed and converted to Young’s modulus E (kPa). Results All SE, SWE, and STQ parameters showed similar diagnostic performance. The SE score, SE ratio, SWEmean, SWEmax, STQmean, and STQmax yielded higher specificity than B-mode US alone to differentiate benign and malignant masses. The sensitivity of B-mode US, SWE, and STQ was slightly higher than that of the SE score and SE ratio. The SE score, SE ratio, SWEmean, SWEmax, STQmean, and STQmax had significantly higher positive predictive value and diagnostic accuracy than B-mode US alone. The area under the curve for each of these elastography methods in differentiating benign and malignant breast lesions was 0.93, 0.93, 0.98, 0.97, 0.98, and 0.96, respectively; P<0.001 for all measurements. Conclusion SE (ratio and score), SWE, and STQ had higher diagnostic performance individually than B-mode US alone in distinguishing between malignant and benign breast masses.

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