Shear Wave Elastography May Add a New Dimension to Ultrasound Evaluation of Thyroid Nodules: Case Series with Comparative EvaluationReportar como inadecuado




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Journal of Thyroid ResearchVolume 2012 2012, Article ID 657147, 6 pages

Research Article

Department of Diagnostic Imaging, Second Faculty of Medicine, Medical University of Warsaw, ul. Kondratowicza 8, 03-242 Warsaw, Poland

NZ0Z Almed, 37-500 Jarosław, Poland

Surgery Department, Solec Hospital, 00-382 Warsaw, Poland

Department of Dental and Maxillofacial Radiology, Institute of Stomatology, First Faculty of Medicine, Medical University of Warsaw, 02-006 Warsaw, Poland

Department of Endocrinology, Centre for Postgraduate Medical Education, 01-809 Warsaw, Poland

Received 2 February 2012; Accepted 5 March 2012

Academic Editor: P. Beck-Peccoz

Copyright © 2012 Rafal Z. Slapa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Although elastography can enhance the differential diagnosis of thyroid nodules, its diagnostic performance is not ideal at present. Further improvements in the technique and creation of robust diagnostic criteria are necessary. The purpose of this study was to compare the usefulness of strain elastography and a new generation of elasticity imaging called supersonic shear wave elastography SSWE in differential evaluation of thyroid nodules. Six thyroid nodules in 4 patients were studied. SSWE yielded 1 true-positive and 5 true-negative results. Strain elastography yielded 5 false-positive results and 1 false-negative result. A novel finding appreciated with SSWE, were punctate foci of increased stiffness corresponding to microcalcifications in 4 nodules, some not visible on B-mode ultrasound, as opposed to soft, colloid-inspissated areas visible on B-mode ultrasound in 2 nodules. This preliminary paper indicates that SSWE may outperform strain elastography in differentiation of thyroid nodules with regard to their stiffness. SSWE showed the possibility of differentiation of high echogenic foci into microcalcifications and inspissated colloid, adding a new dimension to thyroid elastography. Further multicenter large-scale studies of thyroid nodules evaluating different elastographic methods are warranted.





Autor: Rafal Z. Slapa, Antoni Piwowonski, Wieslaw S. Jakubowski, Jacek Bierca, Kazimierz T. Szopinski, Jadwiga Slowinska-Srzednicka,

Fuente: https://www.hindawi.com/



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