High-Intensity Focused Ultrasound
High-intensity focused ultrasound or HIFU is a tightly focussed, high-energy ultrasound that is used in augmented surgery. By focussing beams of HIFU on target biological tissue, it is rapidly cooked, destroying it whilst leaving surrounding tissue unaffected. Combined with real-time imaging hardware, it has opened up the ability of robotic surgeons to operate on patients, without having to open them up.
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A diagnostic method which traditionally requires a hospital visit, seems to be on its way out into en situ care. Thanks to IT engineers from Washington University in St. Louis, US, a transportable ultrasound imager small enough to fit in the hand, has come into being.
All manner of approaches are being fielded these days to try and create a workable haptic interface, that allows the true feeling of touch to an object that is only virtually there. One of the more esoteric, is the use of sound to shape the pressure fields in the air. Specifically, the use of ultrasound.
H.D.R., or high dynamic range photography is a relatively new technique used by photographers to take high-quality full lighting range photos that are near-indistinguishable from paintings, for their ability to correctly replicate the lighting of a given scene, exactly how the human eye would see it.
A look at a new means of low-cost, high effectiveness under-skin imager, designed for use in the doctor's office and in the field, that offers a low-cost, high-precision alternative to CT.
?MUSH stands for Multi-User Shared Hallucination, and is derived from the mud family of online games. They are text based programs which allow multiple people to simultaneously interact within an artificial environment. This article will be focused on role playing MUSHes using the PennMUSH code base, although the TinyMUSH and TinyMUX code bases bear enough resemblance for this to be applicable.?
SonixTouch is a portable touch screen system, that can be customised by the clinician, into any display method, and compatible with any general purpose or specific ultrasound medical system. It adapts to process the results from anything.
RenderWare AI 1.0 is another programmer's kit, this time it's a suite of C++ base classes, and is shipped as a part of RenderWare Platform, a suite of development tools covering all areas of development. RWAI is focused on design and implementation of character behavior, leading to autonomous agents once more - though obviously, only for C++.
This seven minute podcast (of which the first minute, six seconds is entirely skippable) focusses on DARPA work on detecting illness in soldiers before symptoms appear, limb regeneration and portable ultrasound.
In May 2009, the Ishikawa Komuro Lab in Japan, demonstrated the capabilities that robotic manipulation of objects had reached. They had created a three-finger robot arm, with tactile sensors on its fingers, with each finger capable of independent 180 x 180 x 360 motion. All three were connected to a high-speed machine vision camera.
A unique study by human factors/ergonomics researchers in Norfolk, Virginia, USA, has concluded that VR simulators may well be the best way to prepare surgeons for battlefield medicine, as it is ideal for creating a safe replica of the in high-stress, high-workload conditions combat zones present. Conditions which traditional training cannot replicate, and which often cause issues in medical staff encountering it live for the first time.
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n a twist on nontraditional uses of ultrasound, a group of neuroscientists at Arizona State University has developed pulsed ultrasound techniques that can remotely stimulate brain circuit activity.
"Studies of ultrasound and...
One of the trickiest parts of treating brain conditions is the blood brain barrier, a blockade of cells that prevent both harmful toxins and helpful pharmaceuticals from getting to the body's control center. But, a technique published in J...
When surgeons operate to remove a tumor, determining exactly where to cut can be tricky. Ideally, the entire tumor should be removed while leaving a continuous layer of healthy tissue, but current techniques for locating the tumors during s...
Ultrasound waves, currently used in medicine for prenatal scans and other diagnostic purposes, could one day be used as a noninvasive way to control brain activity. Over the past two years, scientists have begun experimenting with low-frequ...
All too often, a stethoscope and a doctor's touch are still the primary tools for diagnosing emergency-room patients. UC Irvine physician Chris Fox aims to change that.
Rather than feeling for a broken bone or swollen abdome...