BioMed Research International / 2014 / Article / Fig 4

Research Article

Acoustic Radiation Force Impulse Imaging: A New Tool for the Diagnosis of Papillary Thyroid Microcarcinoma

Figure 4

Images in a 62-year-old woman with papillary thyroid microcarcinoma. (a) Conventional US shows hypoechogenicity, a taller-than-wide shape, and well-defined margin. (b) The color flow Doppler shows absent blood flow. (c) Score 2 is assigned at VTI. (d) The SWV of the nodule is “3.12” m/s. The conventional US features and ARFI characteristics both indicate suspicious diagnosis. (e) Histology of the lesion confirms the diagnosis of papillary thyroid microcarcinoma. Hematoxylin and eosin stain, ×100.

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