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Ultrasound Scanner
An ultrasound scanner, also known as an ultrasound machine or sonography machine, is a medical device used for diagnostic imaging to visualize internal body structures and organs using high-frequency sound waves. Back lit key board.
Laryngoscope Endoscopic Visualizer
A laryngoscope endoscopic visualizer is a specialized medical device used in otolaryngology (ENT) procedures to provide visualization of the larynx (voice box) and surrounding structures. This portable and handy instrument suited for all types of laryngoscope.
USim: A New Device and App for Case-Specific, Intraoperative Ultrasound Simulation and Rehearsal in Neurosurgery
USim: A New Device and App for Case-Specific, Intraoperative Ultrasound Simulation and Rehearsal in Neurosurgery
Operative Neurosurgery 14:572–578, 2018
Intraoperative ultrasound (iUS) is an excellent aid for neurosurgeons to perform better and safer operations thanks to real time, continuous, and high-quality intraoperative visualization. OBJECTIVE: To develop an innovative training method to teach how to perform iUS in neurosurgery.
METHODS: Patients undergoing surgery for different brain or spine…
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USim: A New Device and App for Case-Specific, Intraoperative Ultrasound Simulation and Rehearsal in Neurosurgery
USim: A New Device and App for Case-Specific, Intraoperative Ultrasound Simulation and Rehearsal in Neurosurgery
Operative Neurosurgery 14:572–578, 2018
Intraoperative ultrasound (iUS) is an excellent aid for neurosurgeons to perform better and safer operations thanks to real time, continuous, and high-quality intraoperative visualization. OBJECTIVE: To develop an innovative training method to teach how to perform iUS in neurosurgery.
METHODS: Patients undergoing surgery for different brain or spine…
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Researchers at Stanford University and Duke University have developed a new technique for watching the brain’s neurons in action with a temporal (time) resolution of about 0.2 milliseconds — a speed that is just fast enough to capture the action potentials in mammalian brains in real time for the first time. The researchers combined genetically encoded voltage indicators, which can sense individual action potentials from many cell types in live animals, with a protein that can quickly sense neural voltage potentials with another protein that can amplify its signal output — the brightest fluorescing protein available.
First real-time imaging of neural activity invented | KurzweilAI
PHOTOACTIVATION LOCALIZATION MICROSCOPY Photomicrography by Harald Hess, Janelia Farms Research Institute, HHMI Images and text reprinted here in abbreviated form.
Three images illustrating the limitation of traditional light microscopy and the power of a super-resolution technique called Photoactivation Localization Microscopy.
When a microscope lens collects light from a molecule and reimages it onto a camera, the light forms a "blurry" spot that reflects the size of the light's wavelength instead of the molecule's size.
This is called "diffraction," and it restricts the resolution of light microscopy to ~1/2 the light's wavelength (~250 nm) or approximately the size of a small mitochondrion.
Thus, imaging with traditional light microscopy is like painting with a "blurry" brush. Individual molecules closer in space than ~250 nm will appear as one.
[1] Here a U2OS [human osteosarcoma] cell is labeled with fluorescent proteins and imaged with traditional microscopy using TIRF (total internal reflection) microscopy, with a resolution of ~250 nanometers.
[2] The same cell is now imaged with Photoactivation Localization Microscopy, shrinking the resolution from ~250 nm to 20 nm. Individual molecules of the membrane protein farnesyl labeled with a photoactivable fluorescent protein are distinguishable.
[3] The same cell is rendered using a high-speed version of the super-resolution technique. This allows real-time imaging in live cells. 3D images can be created by finding the axial position of each molecule with methods such as interferometry.
SOURCE: Zeiss Cell Picture Show
