We describe a technique for studying scattering from subwavelength features. A simple scatterometer was developed to measure the scattering from the single-submicrometer, subwavelength features generated with a focused ion beam system. A model that can describe diffraction from subwavelength features with arbitrary profiles is also presented and shown to agree quite well with the experimental m...

The field of therapeutic focused ultrasound, which first emerged in the 1940s, has seen significant growth, particularly over the past decade. The eventual widespread clinical adoption of this non-invasive therapeutic modality require continued progress, in a multitude of activities including technical, pre-clinical, and clinical research, regulatory approval and reimbursement, manufacturer gro...

[This corrects the article DOI: 10.1186/s40349-016-0066-7.].

A three-dimensional computational model is presented for studying the efficacy of high-intensity focused ultrasound (HIFU) procedures targeted near large blood vessels. The analysis applies to procedures performed at intensities below the threshold for cavitation, boiling and highly nonlinear propagation, but high enough to increase tissue temperature a few degrees per second. The model is base...

Developments in the technology applied to the field of minimally invasive surgery have led to the exploration of high-intensity focused ultrasound (HIFU) for the treatment of localized prostate cancer. Extensive research and continuous evolution have resulted in two commercially available HIFU devices: the Ablatherm and the Sonablate500. These devices are conceptually the same; however, specifi...

Introduction A challenge for High Intensity Focused Ultrasound (HIFU) therapy in the upper abdomen is maintaining the ultrasound focal spot on the target during free breathing. Normal breathing can cause liver tissue to move by as much as 5.5 cm[1]. Consequently, current approaches require the patient to hold their breath during the deposition of focused ultrasound[2]. This practice assumes tha...