Shear Wave Ultrasound Elastography in Noninvasive Diagnosis of Thyroid Nodules
NCT ID: NCT01757834
Last Updated: 2015-05-28
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
175 participants
INTERVENTIONAL
2012-11-30
2015-08-31
Brief Summary
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Detailed Description
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In recent years, US elastography has been shown to have high specificity of 90- 98% in various studies in differentiating between benign and malignant nodules. US elastography works on the principle of detecting the stiffness within a tissue by applying compression which can be manual compression or by generation of a remote radiation force by focused ultrasonic beams called as shear waves. Shear Wave Ultrasound (SWUS) elastography is an objective method of US elastography that detects the stiffness within the nodule since the strength of the shear wave generated is known and can be controlled. SWUS elastography has shown promise in being able to noninvasively diagnose papillary carcinoma in previous studies involving preoperative patients.
The investigators propose to perform a study to investigate the efficacy of SWUS elastography in diagnosing malignant thyroid nodules and noninvasively decreasing the number of FNAs performed by avoiding FNA in benign nodules. The Investigators will enroll patients with thyroid nodules before they undergo FNA biopsy or surgery. We also propose to compare routine US and SWUS elastography and their combined use in differentiating malignant from benign nodules. The investigators hypothesize that SWUS elastography can be used as a noninvasive screening tool, prior to an FNA, to screen out benign and malignant nodules with high level of confidence and reduce the number of biopsies in the future.
Conditions
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Study Design
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NA
SINGLE_GROUP
DIAGNOSTIC
NONE
Study Groups
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SWUS Elastography
This is a noninvasive technique using focused ultrasonic beams (pushing beams.) Several pushing beams at increasing depths are transmitted to generate a quasi-plane shear wave frame that propagates throughout the imaging area. After generating the shear wave, an ultrafast imaging sequence is performed to acquire successive raw radiofrequency dots at a very high frame rate (up to 20,000 per second). A tissue elasticity assessment can be derived from shear wave propagation speed. A color-coded image is displayed; softer tissue in blue and stiffer tissue in red. Quantitative information is delivered by drawing regions of interest on the thyroid and surrounding tissues which is the Elasticity Index expressed in kilo-Pascal (kPa). Due to the lack of manual compression and known value of the strength of pushing beam, SWUS gives an objective number to stiffness within the nodule.
SWUS Elastography
Interventions
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SWUS Elastography
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Referred for thyroid FNA or surgery
Exclusion Criteria
* Unable to provide informed consent
18 Years
ALL
No
Sponsors
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National Cancer Institute (NCI)
NIH
University of Washington
OTHER
Responsible Party
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Manjiri Dighe
Associate Professor of Radiology
Principal Investigators
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Manjiri K. Dighe, MD
Role: PRINCIPAL_INVESTIGATOR
University of Washington
Locations
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University of Washington Medical Center
Seattle, Washington, United States
Countries
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References
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Frates MC, Benson CB, Charboneau JW, Cibas ES, Clark OH, Coleman BG, Cronan JJ, Doubilet PM, Evans DB, Goellner JR, Hay ID, Hertzberg BS, Intenzo CM, Jeffrey RB, Langer JE, Larsen PR, Mandel SJ, Middleton WD, Reading CC, Sherman SI, Tessler FN. Management of thyroid nodules detected at US: Society of Radiologists in Ultrasound consensus conference statement. Ultrasound Q. 2006 Dec;22(4):231-8; discussion 239-40. doi: 10.1097/01.ruq.0000226877.19937.a1.
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Utiger RD. The multiplicity of thyroid nodules and carcinomas. N Engl J Med. 2005 Jun 9;352(23):2376-8. doi: 10.1056/NEJMp058061. No abstract available.
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Papini E, Guglielmi R, Bianchini A, Crescenzi A, Taccogna S, Nardi F, Panunzi C, Rinaldi R, Toscano V, Pacella CM. Risk of malignancy in nonpalpable thyroid nodules: predictive value of ultrasound and color-Doppler features. J Clin Endocrinol Metab. 2002 May;87(5):1941-6. doi: 10.1210/jcem.87.5.8504.
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Gharib H, Papini E, Paschke R, Duick DS, Valcavi R, Hegedus L, Vitti P; AACE/AME/ETA Task Force on Thyroid Nodules. American Association of Clinical Endocrinologists, Associazione Medici Endocrinologi, and European Thyroid Association medical guidelines for clinical practice for the diagnosis and management of thyroid nodules. J Endocrinol Invest. 2010;33(5 Suppl):1-50.
Lyshchik A, Higashi T, Asato R, Tanaka S, Ito J, Hiraoka M, Brill AB, Saga T, Togashi K. Elastic moduli of thyroid tissues under compression. Ultrason Imaging. 2005 Apr;27(2):101-10. doi: 10.1177/016173460502700204.
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Dighe M, Kim J, Luo S, Kim Y. Utility of the ultrasound elastographic systolic thyroid stiffness index in reducing fine-needle aspirations. J Ultrasound Med. 2010 Apr;29(4):565-74. doi: 10.7863/jum.2010.29.4.565.
Hong Y, Liu X, Li Z, Zhang X, Chen M, Luo Z. Real-time ultrasound elastography in the differential diagnosis of benign and malignant thyroid nodules. J Ultrasound Med. 2009 Jul;28(7):861-7. doi: 10.7863/jum.2009.28.7.861.
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Luo S, Kim EH, Dighe M, Kim Y. Thyroid nodule classification using ultrasound elastography via linear discriminant analysis. Ultrasonics. 2011 May;51(4):425-31. doi: 10.1016/j.ultras.2010.11.008. Epub 2010 Nov 27.
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Iannuccilli JD, Cronan JJ, Monchik JM. Risk for malignancy of thyroid nodules as assessed by sonographic criteria: the need for biopsy. J Ultrasound Med. 2004 Nov;23(11):1455-64. doi: 10.7863/jum.2004.23.11.1455.
Other Identifiers
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41443-EA
Identifier Type: -
Identifier Source: org_study_id
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