As ultrasonic waves penetrate deep into tissues ultrasound imaging is able to image invisible things by “seeing through tissues” in real time. With the advent of ultrafast ultrasound imaging, the modality can reach thousands of frames per second, much faster than what the human eye can see. A completely new world is revealed as most important physiological processes in the human body occur in t...

Since the introduction of medical ultrasound in the 1950s, modern diagnostic ultrasound has progressed to see many major diagnostic tools come into widespread clinical use, such as B-mode imaging, color-flow imaging, and spectral Doppler. New applications, such as panoramic imaging, three-dimensional imaging, and quantitative imaging, are now beginning to be offered on some commercial ultrasoun...

Background: The aim of the study was to investigate the use of quantitative ultrasound (QUS) in the young (20-25years) Saudi females to obtain stiffness index values related to bone quality. Method & Findings: In 101 young females recruited, QUS measurements were performed in the calcaneus region. 33% and 3% had osteopenia and osteoporosis in the calcaneus respectively, stiffness index values =...

Correspondence to: Dr J RT C Roelandt, Division of Cardiology, Thoraxcenter BD 408, University Hospital Dijkzigt, PO Box 1738 DR Rotterdam, The Netherlands. In a recent survey conducted in 30 centres with large experience in intracoronary ultrasound, three dimensional reconstruction of intracoronary ultrasound was ranked as the technical development with the lowest priority,' suggesting that it...

We present a 'hybrid' imaging approach which can image both light absorption properties and acoustic transmission properties of an object in a two-dimensional slice using a computed tomography (CT) photoacoustic imager. The ultrasound transmission measurement method uses a strong optical absorber of small cross-section placed in the path of the light illuminating the sample. This absorber, whic...

This study provides evidence that low-intensity ultrasound directly affects nuclear processes, and the magnitude of the effect varies with frequency. In particular, we show that the transcriptional induction of first load-inducible genes, which is independent of new protein synthesis, is frequency dependent. Bovine chondrocytes were exposed to low-intensity (below the cavitational threshold) ul...