Study Results
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Basic Information
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UNKNOWN
70 participants
OBSERVATIONAL
2021-02-01
2022-10-01
Brief Summary
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Detailed Description
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Lymphadenopathy is defined as an abnormality in the size or character of lymph nodes caused by the invasion or propagation of either inflammatory or neoplastic cells into the nodes.
The differentiation of malignant from benign lymph nodes is essential because it predicts the patient prognosis and help in the decision making regarding the management plan.
On ultrasound, gray scale sonography helps to evaluate nodal morphology, whilst color doppler is used to assess vascular pattern. The qualitative criteria for malignancy were heterogenous hypoechoic cortex, irregular margins, lack of hyperechoic fatty hilum and abnormal blood vessels penetrating the lymph nodes capsule.The avascular or hilar patterns were defined as LNs with normal vascularity pattern, and the peripheral or mixed (peripheral and hilar) pattern as LNs with abnormal vascularity pattern. On B-mode and color doppler ultrasound, there is no specific criteria for differentiating metastatic lymph nodes from reactive lymph nodes with 100% accuracy.
Fine-needle aspiration biopsy is the reference standard for differentiating metastatic lymph nodes from reactive lymph nodes. However, restrictions of fine-needle aspiration biopsy are that it is an invasive procedure, and it is not possible to perform for lymph nodes smaller than 5 mm.Therefore, a simple, reliable, and non-invasive imaging modality for differentiating malignant lymph nodes is required.
Ultrasound elastography (UE) is a rather new, non-invasive imaging technique that can be used to depict tissue stiffness and elastic properties. Ultrasound elastography (UE) can be divided broadly into 2 groups depending on the type of tissue displacement:
1. Strain elastography (SE): measures tissue displacements along the axis of an applied force.Strain elastography provides semi - quantitative scores based on elastographic pattern (scores based on percentage of stiff area within the lesion) and strain ratio (ratio between the lesion and the background tissue).
2. Shear wave elastography (SWE): measures a different type of waves that is also produced when tissues are mechanically stimulated. Shear wave elastography is also a quantitative method of analysis for elasticity images using shear wave speed (m/s) or elastic modulus (kPa).
Ultrasound elastography (UE) is easy, rather cheap, non-invasive, and quick to perform, well tolerated by patients, and offers a strong diagnostic power.
Conditions
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Study Design
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CASE_ONLY
CROSS_SECTIONAL
Study Groups
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Patients with Superficial Lymphadenopathy
Elastography
Performance of Ultrasound, Elastography
Interventions
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Elastography
Performance of Ultrasound, Elastography
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Patients who previously underwent fine needle aspiration cytology or biopsy.
ALL
No
Sponsors
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Assiut University
OTHER
Responsible Party
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Nermin Gamal Eldin Ahmed Abdel Sattar
Principal investigator
References
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Kilic A, Colakoglu Er H. Virtual touch tissue imaging quantification shear wave elastography for determining benign versus malignant cervical lymph nodes: a comparison with conventional ultrasound. Diagn Interv Radiol. 2019 Mar;25(2):114-121. doi: 10.5152/dir.2019.18406.
Acu L, Oktar SO, Acu R, Yucel C, Cebeci S. Value of Ultrasound Elastography in the Differential Diagnosis of Cervical Lymph Nodes: A Comparative Study With B-mode and Color Doppler Sonography. J Ultrasound Med. 2016 Nov;35(11):2491-2499. doi: 10.7863/ultra.15.09019.
Naik RM, Pai A, Guruprasad Y, Singh R. Efficacy of colour Doppler ultrasound in diagnosis of cervical lymphadenopathy. J Maxillofac Oral Surg. 2013 Jun;12(2):123-9. doi: 10.1007/s12663-012-0395-1. Epub 2012 Aug 24.
Suh CH, Choi YJ, Baek JH, Lee JH. The diagnostic performance of shear wave elastography for malignant cervical lymph nodes: A systematic review and meta-analysis. Eur Radiol. 2017 Jan;27(1):222-230. doi: 10.1007/s00330-016-4378-3. Epub 2016 May 5.
Desmots F, Fakhry N, Mancini J, Reyre A, Vidal V, Jacquier A, Santini L, Moulin G, Varoquaux A. Shear Wave Elastography in Head and Neck Lymph Node Assessment: Image Quality and Diagnostic Impact Compared with B-Mode and Doppler Ultrasonography. Ultrasound Med Biol. 2016 Feb;42(2):387-98. doi: 10.1016/j.ultrasmedbio.2015.10.019. Epub 2015 Nov 23.
Bhatia KS, Lee YY, Yuen EH, Ahuja AT. Ultrasound elastography in the head and neck. Part I. Basic principles and practical aspects. Cancer Imaging. 2013 Jul 22;13(2):253-9. doi: 10.1102/1470-7330.2013.0026.
Cheng KL, Choi YJ, Shim WH, Lee JH, Baek JH. Virtual Touch Tissue Imaging Quantification Shear Wave Elastography: Prospective Assessment of Cervical Lymph Nodes. Ultrasound Med Biol. 2016 Feb;42(2):378-86. doi: 10.1016/j.ultrasmedbio.2015.10.003. Epub 2015 Nov 6.
Choi YJ, Lee JH, Lim HK, Kim SY, Han MW, Cho KJ, Baek JH. Quantitative shear wave elastography in the evaluation of metastatic cervical lymph nodes. Ultrasound Med Biol. 2013 Jun;39(6):935-40. doi: 10.1016/j.ultrasmedbio.2012.12.009. Epub 2013 Feb 27.
Related Links
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Related Info
Other Identifiers
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Ultrasound in Lymphadenopathy
Identifier Type: -
Identifier Source: org_study_id
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