The diagnosis value of acoustic radiation force impulse (ARFI) elastography for thyroid malignancy without highly suspicious features on conventional ultrasound.

Objective: The aim of this study was to evaluate the potential diagnostic performance of acoustic radiation force impulse (ARFI) elastography in identifying malignancy in nodules that do not appear highly suspicious on conventional ultrasound (US).

Methods: 330 pathologically confirmed thyroid nodules (40 malignant and 290 benign; mean size, 22.0±11.

Clinical, pathological and sonographic characteristics of unexpected gallbladder carcinoma.

Objectives: To investigate the clinical, pathological, and sonographic characteristics of unexpected gallbladder carcinoma (UGC).

Methods: Of 5424 patients who had undergone cholecystectomy from December 2006 to October 2013, 54 patients with primary gallbladder carcinomas confirmed by pathological diagnosis were identified. The patients were divided into two groups: diagnosed before operation (n=34) and UGC groups (n=20), of whom the clinical, pathological, and sonographic characteristics were compared.

Acoustic radiation force impulse induced strain elastography and point shear wave elastography for evaluation of thyroid nodules.

The aim of the study was to evaluate the diagnostic performance of acoustic radiation force impulse (ARFI) induced strain elastography (SE), point shear wave elastography (p-SWE), and their combined use in differentiating thyroid nodules. This retrospective study included 155 thyroid nodules (94 benign and 61 malignant) in 136 patients. Ultrasound, ARFI-induced SE and p-SWE were performed on each nodule.

A novel two-dimensional quantitative shear wave elastography for differentiating malignant from benign breast lesions.

Objective: The purpose of this study was to evaluate the diagnostic performance of a novel quantitative shear wave elastography (SWE) of virtual touch tissue imaging quantification (VTIQ) in diagnosis of breast lesions.

Methods: The conventional ultrasound (US) and VTIQ images of 133 pathologically proven breast lesions in 98 patients were assessed. The breast lesions were classified by US breast imaging reporting and data system (BI-RADS) category.

Value of contrast-enhanced ultrasound in the differential diagnosis between gallbladder adenoma and gallbladder adenoma canceration.

Objectives: To investigate the value of contrast-enhanced ultrasound (CEUS) in the differential diagnosis between gallbladder adenomas and gallbladder adenomas canceration.

Methods: CEUS data from 34 patients (25 patients with gallbladder adenomas and 9 patients with gallbladder adenomas canceration) were retrospectively analyzed, including the characteristics of contrast arrival time, time to peak enhancement, enhancement extend, enhancement morphology and the intactness of gallbladder wall below the lesions.

Results: On CEIS, the contrast arrival time and the time to peak enhancement were significantly shorter in patients with gallbladder adenomas than in patients with gallbladder adenomas canceration (12.

Bipolar radiofrequency ablation for liver tumors: comparison of contrast-enhanced ultrasound with contrast-enhanced MRI/CT in the posttreatment imaging evaluation.

Objective: The aim of the study was to assess the role of contrast-enhanced ultrasound (CEUS) in treatment response evaluation after percutaneous bipolar radiofrequency ablation (BRFA) for liver tumors.

Methods: From May 2012 to May 2014, 39 patients with 73 tumors were treated by BRFA. One month after the treatment, CEUS and CEMRI/CECT were conducted to evaluate the treatment response.