• prostate-specifi
  • A TRUS is often used to help diagnose prostate cancer if the prostate-specific antigen (PSA) level is high, the doctor feels an abnormal area during a digital rectal exam (DRE) or a man has certain symptoms, such as trouble urinating. (cancer.ca)
  • diagnostic ultrasound
  • With high intensity, it can also cause small pockets of gas in body fluids or tissues to expand and contract/collapse in a phenomenon called cavitation (this is not known to occur at diagnostic power levels used by modern diagnostic ultrasound units). (bionity.com)
  • Smith earned a bachelor of science degree in Computer Science at the University of Illinois at Urbana-Champaign (UIUC) in 1985, a master's degree in Electrical and Computer Engineering at UIUC in 1989, with the thesis Automated Ultrasonic Exposure System to Assess the Effects of In Utero Diagnostic Ultrasound. (wikipedia.org)
  • visualize
  • Medical sonography ( ultrasonography ) is an ultrasound-based diagnostic medical imaging technique used to visualize muscles, tendons, and many internal organs, their size, structure and any pathological lesions with real time tomographic images. (bionity.com)
  • frequency
  • The electrode is coupled to a high frequency power supply to ablatively heat the urethra and the prostatic. (google.com)
  • 7. The method of claim 1 wherein applying the high-frequency output includes forming the cavity such that the urethral passage is enlarged relative to a normal size of the urethral passage. (google.com)
  • 8. The method of claim 1 wherein applying the high-frequency output includes applying the high-frequency output through the ring electrode to a return electrode. (google.com)
  • Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. (bionity.com)
  • Carefully-designed scientific studies have been performed and confirmed what they call the hypersonic effect - that even without consciously hearing it, high-frequency sound can have a measurable effect on the mind. (bionity.com)
  • Some animals - such as dogs, cats, dolphins, bats, and mice - have an upper frequency limit that is greater than that of the human ear and thus can hear ultrasound. (bionity.com)
  • mice
  • A noteworthy study in 2006 suggests exposure to ultrasound can affect fetal brain development in mice. (bionity.com)
  • Capabilities of this new device to deliver large molecules to the brain on either single locations or along arbitrary trajectories were characterized in vivo on healthy rats and mice using 1.5 MHz ultrasound sonications combined with microbubble injection. (biomedcentral.com)
  • device
  • locating said uterine artery with a locating device selected from the group consisting of a CT scanner, a fluoroscope, X ray, a MRI device, Doppler audio device, a gray scale color 2D Doppler ultrasound device, a landmark system, and combinations thereof. (google.com)
  • He came for a rendezvous with an ultrasound device. (paete.org)
  • medical
  • Ultrasound scans are performed by medical health care professionals called sonographers. (bionity.com)
  • As currently applied in the medical environment, ultrasound poses no known risks to the patient. (bionity.com)
  • Smith worked on a three-year postdoctoral fellowship with Professor Kullervo Hynynen in the Radiology Department at Brigham and Women's Hospital, Harvard Medical School, where she developed an intracavitary ultrasound hyperthermia array used for human prostate cancer treatments. (wikipedia.org)
  • small
  • Where the streams of energy intersected at the prostate, the temperature soared to more than 80 C, cooking small batches of tumor cells in seconds. (paete.org)
  • thus
  • Although this limit varies from person to person, it is approximately 25 kilohertz (25,000 hertz) in healthy, young adults and thus, 25kHz serves as a useful lower limit in describing ultrasound. (bionity.com)
  • While 5α-reductase inhibitors appear to decrease low-grade cancer risk they do not affect high-grade cancer risk and thus are not recommended for prevention. (wikipedia.org)
  • areas
  • Samples are taken from different areas of the prostate including any areas that look abnormal on the ultrasound. (cancer.ca)
  • include
  • Other factors that may be involved include a diet high in processed meat, red meat, or milk products or low in certain vegetables. (wikipedia.org)