A qualitative and quantitative assessment of simultaneous strain, shear wave, and point shear wave elastography to distinguish malignant and benign breast lesions
| Autor: | Medih Çeliktaş, Ömer Alabaz, Yasemin Altintas, Mehmet Bayrak |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
medicine.medical_specialty Adolescent Breast Neoplasms Strain (injury) Sensitivity and Specificity 030218 nuclear medicine & medical imaging Diagnosis Differential Young Adult 03 medical and health sciences 0302 clinical medicine Consistency (statistics) Elastic Modulus medicine Quantitative assessment Humans Radiology Nuclear Medicine and imaging Breast Prospective Studies Aged Aged 80 and over Shear wave elastography Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Reproducibility of Results General Medicine Middle Aged medicine.disease Shear (geology) Evaluation Studies as Topic 030220 oncology & carcinogenesis Elasticity Imaging Techniques Female Ultrasonography Mammary Radiology Elastography business |
| Zdroj: | Acta Radiologica. 62:1155-1162 |
| ISSN: | 1600-0455 0284-1851 |
| DOI: | 10.1177/0284185120961422 |
| Popis: | 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; PConclusion 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. |
| Databáze: | OpenAIRE |
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