scholarly journals EP15.28: Value of “elasto strain ratio” ultrasound elastography in the differential diagnosis of endometrial polyps and submucosal myomas: preliminary study

2018 ◽  
Vol 52 ◽  
pp. 261-261
Author(s):  
S. Wozniak ◽  
P. Czuczwar ◽  
P.R. Szkodziak ◽  
A. Krzyzanowski ◽  
A. Wozniak ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Strain Ratio ◽  
Ultrasound Elastography ◽  
Endometrial Polyps ◽  
Preliminary Study

scholarly journals Ultrasonic Elastography in the Differential Diagnosis of Thyroid Nodular Patholog

2019 ◽  
Vol 26 (4) ◽  
pp. 45-55
Author(s):  
L. A. Timofeeva ◽  
M. G. Tukhbatullin ◽  
A. N. Sencha
Keyword(s):  
Differential Diagnosis ◽  
Thyroid Cancer ◽  
Shear Wave ◽  
Density Ratio ◽  
Shear Wave Elastography ◽  
Strain Ratio ◽  
Ultrasound Elastography ◽  
Control Group ◽  
Tissue Elasticity ◽  
Patient Groups

Aim.In this study, we set out to determine the informative value of multi-parametric ultrasound examination using ultrasound elastography in the differential diagnosis of thyroid nodular neoplasms.Materialsand methods. We analysed 229 multi-parametric ultrasound examinations of patients in the preoperative period in order to assess the effectiveness of strain elastography (SE) and shear wave elastography (SWE) drawing on the example of ARFI and Strain Ratio. Two patient groups were formed. The fi rst group (N1=93) included patients with thyroid cancer, whereas the second one (N2=136) was composed of patients with benign thyroid nodules (thyroid adenoma and follicular or colloid goitre). The control group consisted of 174 patients with unchanged thyroid parenchyma. SE visualised tissue elasticity as a colour map. Shear wave elastography (SWE) — ARFI and Strain Ratio techniques — was performed using the following ultrasonic apparatuses: Acuson S-2000 (Siemens, Germany), Ultrasonix SP (Sonix, Canada) and Mindray DC-8 (Mindray, China).Results.According to the obtained data (SE technique), the parenchyma of the unchanged thyroid gland exhibited heterogeneous, uneven fi ne / moderately granular, symmetrical staining (96.6%). Thyroid cancer was characterised by a shear wave velocity (ARFI) of greater than 3.57 m/s, as well as a density ratio (elasticity modulus and Strain Ratio) of more than 1.56.Conclusion.The study revealed that the application of ultrasound elastography is highly informative in the comprehensive diagnosis of thyroid nodular neoplasms and should be used when thyroid cancer is suspected to ascertain the size of nodules, as well as the tumour invasion into surrounding tissues.

scholarly journals EP26.01: Value of “elasto strain ratio” ultrasound elastography in the diagnosis of adenomyosis: preliminary study

2017 ◽  
Vol 50 ◽  
pp. 381-381
Author(s):  
S. Wozniak ◽  
P. Czuczwar ◽  
P.R. Szkodziak ◽  
K. Pyra ◽  
T. Paszkowski
Keyword(s):  
Strain Ratio ◽  
Ultrasound Elastography ◽  
Preliminary Study

scholarly journals OP24.04: Value of “elasto strain ratio” ultrasound elastography in the diagnosis of intramural uterine fibroids: preliminary study

2017 ◽  
Vol 50 ◽  
pp. 126-126
Author(s):  
P.R. Szkodziak ◽  
S. Wozniak ◽  
P. Czuczwar ◽  
W. Wrona ◽  
K. Trzeciak ◽  
...  
Keyword(s):  
Uterine Fibroids ◽  
Strain Ratio ◽  
Ultrasound Elastography ◽  
Preliminary Study

The value of strain ratio in differential diagnosis of thyroid solid nodules

2012 ◽  
Vol 81 (2) ◽  
pp. 286-291 ◽  
Author(s):  
Chun-Ping Ning ◽  
Shuang-Quan Jiang ◽  
Tao Zhang ◽  
Li-tao Sun ◽  
Yu-Jie Liu ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Strain Ratio

Ultrasound Elastography Using Carotid Artery Pulsation in the Differential Diagnosis of Sonographically Indeterminate Thyroid Nodules

2015 ◽  
Vol 204 (2) ◽  
pp. 396-401 ◽  
Author(s):  
Woo Jung Choi ◽  
Jeong Seon Park ◽  
Hye Ryoung Koo ◽  
Soo-Yeon Kim ◽  
Min Sung Chung ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Carotid Artery ◽  
Thyroid Nodules ◽  
Ultrasound Elastography

scholarly journals In vivo stiffness assessment of patellar and quadriceps tendons by strain ultrasound elastography

2021 ◽  
pp. 1-10
Author(s):  
Surangika Wadugodapitiya ◽  
Makoto Sakamoto ◽  
Sayaka Suzuki ◽  
Yusuke Morise ◽  
Koichi Kobayashi
Keyword(s):  
Knee Flexion ◽  
Quadriceps Tendon ◽  
Strain Ratio ◽  
Ultrasound Elastography ◽  
Return To Sports ◽  
Target Tissue ◽  
Relative Stiffness ◽  
Extension Mechanism ◽  
Significant Difference

BACKGROUND: The patellar and quadriceps tendons are responsible for the extension mechanism of the knee joint and frequently become inflamed during sports. Diagnosis and determination of when an athlete can return to sports following these injuries are usually performed by assessing morphological features and functional outcomes. Nevertheless, mechanical properties are not being assessed. OBJECTIVE: To describe the stiffness characteristics of these two tendons over the range of knee flexion and to test the feasibility of using strain ultrasound elastography (SE). METHODS: SE with an acoustic coupler as the reference was performed for nine healthy males. Relative stiffness measurements were obtained using the strain ratio (SR = target tissue strain/reference strain) by placing the knee in five different flexion angles. Lower SR indicates higher relative stiffness. RESULTS: This study showed reliable measurement with good intra- and inter-rater agreement for SR at 30°. SR of the quadriceps tendon decreases as knee flexion increases, indicating increased relative stiffness. In the patellar tendon, no significant difference was observed between 30° and 60°. Beyond 60°, relative stiffness increased constantly. CONCLUSIONS: SE is a reproducible and feasible tool to monitor relative stiffness of the patellar and quadriceps tendons in routine clinical settings.

scholarly journals Ultrasonic elastography and conventional ultrasound in the diagnosis of thyroid micro-nodules

2019 ◽  
Vol 35 (6) ◽  
Author(s):  
Jinming Wang ◽  
Wenbing Wei ◽  
Rui Guo
Keyword(s):  
Differential Diagnosis ◽  
Roc Curve ◽  
Thyroid Nodules ◽  
Ultrasound Elastography ◽  
Surgical Pathology ◽  
Maximum Diameter ◽  
Clinical Value ◽  
Conventional Ultrasound ◽  
Missed Diagnosis ◽  
The Difference

Objective: To investigate the clinical value of conventional ultrasound, ultrasound elastography and conventional ultrasound combined with ultrasound elastography in differential diagnosis of benign and malignant thyroid micro-nodules. Methods: Eighty-six patients who were found with thyroid micro-nodules with the maximum diameter no more than 10 mm in the physical examination in our hospital from June 2015 to December 2017 were selected, and 102 nodules were included. All patients were confirmed with thyroid micro-nodules by puncture or surgical pathology and underwent conventional ultrasound and ultrasound elastography. Taking the surgical pathological results as a control, the value of conventional ultrasound, ultrasound elastography and conventional ultrasound combined with ultrasound elastography in differential diagnosis of benign and malignant thyroid micro-nodules were compared. A receiver operating characteristic (ROC) curve was drawn, and the area under the ROC curve was calculated. Results: One hundred and two thyroid nodules were detected by surgical pathology, including 75 benign nodules (73.53%) and 27 malignant nodules (26.47%). The sensitivity and diagnostic accordance rate of ultrasound elastography were significantly higher than those of conventional ultrasound in the diagnosis of thyroid microcarcinoma, and the missed diagnosis rate of ultrasound elastography was significantly lower than that of conventional ultrasound; the difference was statistically significant (P<0.05). However, the difference between the two methods was not statistically significant in terms of diagnostic specificity and misdiagnosis rate (P>0.05). The areas under the ROC curve in the diagnosis of benign and malignant thyroid nodules by conventional ultrasound and ultrasound elastography were 0.735 and 0.743 respectively. Conclusion: Conventional ultrasound can be used as a routine examination technique in differential diagnosis of benign and malignant thyroid nodules, while ultrasound elastography can improve the sensitivity and diagnostic rate in the diagnosis of thyroid micro carcinoma. It can help to reduce the clinical missed diagnosis, which also can be be used as an effective supplement for conventional ultrasound. doi: https://doi.org/10.12669/pjms.35.6.777 How to cite this:Wang J, Wei W, Guo R. Ultrasonic elastography and conventional ultrasound in the diagnosis of thyroid micro-nodules. Pak J Med Sci. 2019;35(6):1526-1531. doi: https://doi.org/10.12669/pjms.35.6.777 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Prospective Evaluation of Semiquantitative Strain Ratio and Quantitative 2D Ultrasound Shear Wave Elastography (SWE) in Association with TIRADS Classification for Thyroid Nodule Characterization

2019 ◽  
Vol 40 (04) ◽  
pp. 495-503 ◽  
Author(s):  
Vito Cantisani ◽  
Emanuele David ◽  
Hektor Grazhdani ◽  
Antonello Rubini ◽  
Maija Radzina ◽  
...  
Keyword(s):  
Thyroid Nodule ◽  
Shear Wave ◽  
Diagnostic Performance ◽  
Thyroid Nodules ◽  
Shear Wave Elastography ◽  
Strain Ratio ◽  
Ultrasound Elastography ◽  
Prospective Evaluation ◽  
2D Ultrasound

Abstract Purpose To evaluate the diagnostic performance of strain ratio elastography (SRE) and shear wave elastography (SWE) alone and in combination with Thyroid Imaging Reporting and Data System (TIRADS) classification parameters to improve differentiation between benign and malignant thyroid nodules. Materials and Methods In this prospective study benign (n = 191) and malignant (n = 52) thyroid nodules were examined with high-resolution ultrasound (US) features using the TIRADS lexicon and SRE semiquantitative and SWE quantitative findings using histology or cytology as the gold standard with a 12-month follow-up. Sensitivity (Se), specificity (Sp) and the area under the ROC curve (AUROC) were used to evaluate the diagnostic performance of each feature and combinations of the methods. Results TIRADS score showed a sensitivity of 59.6 %, a specificity of 83.8 % with an AUROC of 0.717, a PPV of 50.0 % and an NPV of 88.4 %. SRE yielded the highest performance with a sensitivity of 82.7 %, a specificity of 92.7 % with AUROC of 0.877, a PPV 75.4 % and an NPV of 95.2 %. SWE (kPa) had a sensitivity and specificity of 67.3 % and 82.7 %, respectively, with an AUROC of 0.750, a PPV of 51.5 % and an NPV of 90.3 %. Differences were significant for SRE only but not for SWE. Conclusion Ultrasound elastography may improve thyroid nodule discrimination. In particular, SRE has a better performance than TIRADS classification, while their combination improves sensitivity.

Sign in / Sign up

Export Citation Format

Share Document