scholarly journals Ultrasound Elastography for the Evaluation of Lymph Nodes

2021 ◽  
Vol 11 ◽  
Author(s):  
Bin Wang ◽  
Qi Guo ◽  
Jia-Yu Wang ◽  
Yang Yu ◽  
Ai-Jiao Yi ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Shear Wave ◽  
Fine Needle Aspiration Biopsy ◽  
Current Knowledge ◽  
Needle Aspiration ◽  
Ultrasound Elastography ◽  
Resonance Imaging ◽  
Positive Rate ◽  
Conventional Ultrasound ◽  
Color Map

The differential diagnosis of lymphadenopathy is important for predicting prognosis, staging, and monitoring the treatment, especially for cancer patients. Conventional computed tomography and magnetic resonance imaging characterize lymph node (LN) with disappointing sensitivity and specificity. Conventional ultrasound with the advantage of high resolution has been widely used for the LN evaluation. Ultrasound elastography (UE) using color map or shear wave velocity can non-invasively demonstrate the stiffness and homogeneity of both the cortex and medulla of LNs and can detect early circumscribed malignant infiltration. There is a need of a review to comprehensively discuss the current knowledge of the applications of various UE techniques in the evaluation of LNs. In this review, we discussed the principles of strain elastography and shear wave-based elastography, and their advantages and limitations in the evaluation of LNs. In addition, we comprehensively introduced the applications of various UE techniques in the differential diagnosis of reactive LNs, lymphoma, metastatic LNs, and other lymphadenopathy. Moreover, the applications of endoscopic UE and endobronchial UE are also discussed, including their use for improving the positive rate of diagnosis of fine-needle aspiration biopsy.

Suggested amendment of TI-RADS classification of thyroid nodules by shear wave elastography

2019 ◽  
Vol 61 (8) ◽  
pp. 1026-1033
Author(s):  
Jin-Ru Yang ◽  
Yan Song ◽  
Shan-Shan Xue ◽  
Li-Tao Ruan
Keyword(s):  
Shear Wave ◽  
Operating Characteristic ◽  
Thyroid Nodules ◽  
Characteristic Curve ◽  
Shear Wave Elastography ◽  
Needle Aspiration ◽  
Ultrasound Elastography ◽  
Conventional Ultrasound ◽  
Ultrasonic Shear

Background The application of the ultrasound elastography and Thyroid Imaging Reporting and Data System (TI-RADS) classification further expands the scope of ultrasound differential diagnosis between benign and malignant thyroid nodules. Purpose To investigate the value of the quantitative parameter of ultrasonic shear waves in optimizing the TI-RADS classification of thyroid nodules. Material and Methods A total of 168 thyroid nodules, initially classified using TI-RADS and scanned by shear wave elastography (SWE), were retrospectively analyzed. All cases were diagnosed by fine needle aspiration and histology following surgery. Results The benign rate of TI-RADS 3 nodules was 76.5%, while the benign rate of TI-RADS 4a nodules was 71.7%. Furthermore, the malignant rate of TI-RADS 4b nodules was 69.7%, while the malignant rate of TI-RADS 4c nodules was 85.7%. In differentiating benign from malignant nodules, the combination of TI-RADS classification and Emean had the largest area under the receiver operating characteristic curve (AUC). Using an Emean value of 42.25 kpa as the cut-off point, the malignant rate of TI-RADS 4a nodules decreased from 28.3% to 23.5%, while the malignant rate of TI-RADS 4b nodules increased from 69.7% to 79.4%. Compared to conventional ultrasound alone, the sensitivity, negative predictive value, and AUC of conventional ultrasound combined with SWE in the diagnosis of benign and malignant thyroid nodules significantly improved ( P=0.012, 0.029, 0.001). Conclusion The SWE technique can be used to further determine the benign and malignant nature of TI-RADS 4 lesions, providing further reference for the choice of clinical treatment. The TI-RADS classification system corrected by SWE is more significant in the diagnosis of benign and malignant thyroid nodules.

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.

PP - FINE-NEEDLE ASPIRATION BIOPSY FOR DIFFERENTIAL DIAGNOSIS BETWEEN OSTEONECROSIS AND JAW METASTASIS: CASE REPORT

2017 ◽  
Vol 123 (2) ◽  
pp. e62
Author(s):  
LEANDRO DORIGAN DE MACEDO ◽  
TATIANE CRISTINA FERRARI ◽  
VANESSA ROCHA LIMA SHCAIRA ◽  
KARINA ALESSANDRA MICHELAO GRECCA PIERONI ◽  
CARLOS BATALHAO ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Fine Needle Aspiration ◽  
Fine Needle Aspiration Biopsy ◽  
Needle Aspiration ◽  
Aspiration Biopsy ◽  
Fine Needle ◽  
Needle Aspiration Biopsy

Vacuum Aspiration-Resection Biopsy in the dIAGNOSIS and Treatment of Focal Formations Mammary Glands

2015 ◽  
Vol 22 (3) ◽  
pp. 107-111 ◽  
Author(s):  
Одинцова ◽  
S. Odintsova ◽  
Одинцов ◽  
V. Odintsov ◽  
Гусейнов ◽  
...  
Keyword(s):  
Fine Needle Aspiration Biopsy ◽  
Mammary Glands ◽  
Needle Aspiration ◽  
Diagnosis And Treatment ◽  
Resonance Imaging ◽  
X Ray ◽  
Minimal Invasiveness ◽  
Vacuum Aspiration ◽  
Last Stage ◽  
Outpatient Settings

The article is devoted to the diagnosis and treatment of focal formations mammary gland. To clarify the diagnosis, it is important complex research: ultrasound, x-ray mammography, fine needle aspiration biopsy, magnetic resonance imaging, etc. Traditionally, the last stage of diagnosis and conventional treatment in clinical practice remains a sectoral resection with urgent histological examination of the surgical material. The proposed method of vacuum aspiration-resection biopsy is a promising minimally invasive technology and allows you to delete all visualized by means sonography the non-palpable tumors up to 2 cm. The advantage of this method is its minimal invasiveness, the use of local anesthesia and outpatient settings. According to the authors, in the future, the method of vacuum aspiration-resection biopsy can significantly reduce the number of traditional sectoral resections with lower financial costs. The authors emphasize the predominance in perspective the method of vacuum aspiration-resection biopsy to clarify the diagnosis of focal formations up to 1 cm, especially non-palpable character.

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