• Publications
  • Influence
The onset of microbubble vibration.
A linear relationship between the relative expansion of an off-resonance ultrasound contrast microbubble and low acoustic pressures is expected. In this study, high-speed optical recordings ofExpand
  • 124
  • 8
High Frequency Attenuation and Size Distribution Measurements of Definity and Manipulated Definity Populations
The contrast agent Definity has recently been shown to have substantial nonlinear activity at high ultrasound frequencies (>10 MHz), which has been hypothesized to be associated with the presence ofExpand
  • 41
  • 8
Characterization of Definity™ ultrasound contrast agent at frequency range of 5-15 MHz.
The status of vasa vasorum, which can be imaged using ultrasound contrast agents, is an indication for the progression of atherosclerosis. The preferred ultrasound frequency for this purpose isExpand
  • 58
  • 7
P2A-3 High Frequency Attenuation and Size Distribution Measurements of Definity and Manipulated Definity Populations
The contrast agent Definitytrade has recently been shown to have substantial nonlinear activity at high ultrasound frequencies (>10 MHz), which has been hypothesized to be associated with theExpand
  • 164
  • 6
Antitumor Effects of Combining Docetaxel (Taxotere) with the Antivascular Action of Ultrasound Stimulated Microbubbles
Ultrasound stimulated microbubbles (USMB) are being investigated for their potential to promote the uptake of anticancer agents into tumor tissue by exploiting their ability to enhance microvascularExpand
  • 65
  • 5
  • PDF
High frequency nonlinear B-scan imaging of microbubble contrast agents
It was previously shown that it is possible to produce nonlinear scattering from microbubble contrast agents using transmit frequencies in the 14-32 MHz range, suggesting the possibility ofExpand
  • 99
  • 4
Nonlinear resonance behavior and linear shell estimates for Definity™ and MicroMarker™ assessed with acoustic microbubble spectroscopy.
  • B. Helfield, D. Goertz
  • Materials Science, Medicine
  • The Journal of the Acoustical Society of America
  • 30 January 2013
There is a growing interest in microbubble based ultrasound contrast imaging applications in the 5-15 MHz range. In this study, individual microbubbles were insonified at low pressures (≤ 25 kPa)Expand
  • 49
  • 4
Antitumor effects of combining metronomic chemotherapy with the antivascular action of ultrasound stimulated microbubbles
Considerable effort is being directed toward investigating the use of ultrasound (US) stimulated microbubbles (MB) to promote the uptake of anticancer agents in tumors. In this study we propose andExpand
  • 47
  • 4
High-frequency Doppler ultrasound monitors the effects of antivascular therapy on tumor blood flow.
The effect of antivascular therapy on blood flow in superficial tumors was monitored using novel high frequency Doppler (HFD) ultrasound techniques. Human melanoma cells (MeWo) were injectedExpand
  • 172
  • 3
  • PDF
Nonlinear intravascular ultrasound contrast imaging.
Nonlinear contrast agent imaging with intravascular ultrasound (IVUS) is investigated using a prototype IVUS system and an experimental small bubble contrast agent. The IVUS system employed aExpand
  • 93
  • 3
...
1
2
3
4
5
...