News tagged with optical imaging

Doctoral dissertation studies the use of light in measuring cerebral circulation

Tiina Näsi, a researcher of biomedical engineering at Aalto University, studied in her doctoral thesis the use of light in measuring the brain's blood circulation. This optical measurement may in the future help discover ...

Medical research created Apr 12, 2013 | popularity not rated yet | comments 0

Engineer invents bionic eye to help the blind

(Medical Xpress)—For UCLA bioengineering professor Wentai Liu, more than two decades of visionary research burst into the headlines last month when the FDA approved what it called "the first bionic eye for the blind." ...

Ophthalmology created Mar 25, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Brain stent offers alternative to shunt for fixing potentially blinding vein narrowing

A team of interventional neuroradiologists and neurosurgeons at Johns Hopkins reports wide success with a new procedure to treat pseudotumor cerebri, a rare but potentially blinding condition marked by excessive pressure ...

Ophthalmology created Mar 14, 2013 | popularity not rated yet | comments 0

Study shows human brain able to discriminate syllables three months prior to birth

(Medical Xpress)—A team of French researchers has discovered that the human brain is capable of distinguishing between different types of syllables as early as three months prior to full term birth. As ...

Neuroscience created Feb 26, 2013 | popularity 4.8 / 5 (4) | comments 7 | with audio podcast report

Shedding new light on infant brain development

(Medical Xpress)—A new study by Columbia Engineering researchers finds that the infant brain does not control its blood flow in the same way as the adult brain. The paper, which the scientists say could ...

Neuroscience created Feb 18, 2013 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

The research is in: Physical activity enhances cognition

Exercise doesn't only strengthen your heart and muscles – it also beefs up your brain. Dozens of studies now show that aerobic exercise can increase the size of critical brain structures and improve cognition in children ...

Health created Feb 17, 2013 | popularity 5 / 5 (4) | comments 0

New study sheds light on the complexity of gene therapy for congenital blindness

Independent clinical trials, including one conducted at the Scheie Eye Institute at the Perelman School of Medicine, have reported safety and efficacy for Leber congenital amaurosis (LCA), a congenital form of blindness caused ...

Genetics created Jan 22, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Tiny tools help advance medical discoveries: Researchers are designing tools to analyze cells at the microscale

To understand the progression of complex diseases such as cancer, scientists have had to tease out the interactions between cells at progressively finer scales—from the behavior of a single tumor cell in ...

Medical research created Jan 08, 2013 | popularity 5 / 5 (1) | comments 0

One neuron has huge impact on brain behaviour

(Medical Xpress)—Researchers from Australia and the USA have made a unique discovery about how the brain computes sensory information.

Neuroscience created Nov 15, 2012 | popularity 4.4 / 5 (5) | comments 1 | with audio podcast

Laser-light testing of breast tumor fiber patterns helps show whose cancer is spreading

Using advanced microscopes equipped with tissue-penetrating laser light, cancer imaging experts at Johns Hopkins have developed a promising, new way to accurately analyze the distinctive patterns of ultra-thin collagen fibers ...

Cancer created Nov 01, 2012 | popularity 5 / 5 (1) | comments 0

Might lefties and righties benefit differently from a power nap?

People who like to nap say it helps them focus their minds post a little shut eye. Now, a study from Georgetown University Medical Center may have found evidence to support that notion.

Neuroscience created Oct 17, 2012 | popularity 4.4 / 5 (7) | comments 2 | with audio podcast

EPFL and Harvard join forces to diagnose hearing loss

Researchers at EPFL and Harvard Medical School have joined forces to develop an imaging technique that can provide in situ observations of the internal ear, an area which has until now been inaccessible. ...

Medical research created Oct 17, 2012 | popularity not rated yet | comments 0

Retinal hemorrhage pattern can predict inflicted brain injury

(HealthDay)—In children under the age of 3, a high dot-blot count for retinal hemorrhages (RHs) is a strong predictor of inflicted traumatic brain injury (ITBI) rather than accidental traumatic brain injury ...

Pediatrics created Oct 09, 2012 | popularity not rated yet | comments 0

Imaging device quantifies change in port wine stains

(HealthDay)—A newly developed spatial frequency domain imaging (SFDI) device can be used to quantify biochemical compositional changes in port wine stain (PWS) lesions after laser therapy, according to ...

Surgery created Sep 10, 2012 | popularity 5 / 5 (1) | comments 0

Novel microscopy method offers sharper view of brain's neural network

Shortly after the Hubble Space Telescope went into orbit in 1990 it was discovered that the craft had blurred vision. Fortunately, Space Shuttle astronauts were able to remedy the problem a few years later ...

Neuroscience created Aug 23, 2012 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Optical imaging

Optical imaging is an imaging technique.

Optics usually describes the behavior of visible, ultraviolet, and infrared light used in imaging.

Because light is an electromagnetic wave, similar phenomena occur in X-rays, microwaves, radio waves. Chemical imaging or molecular imaging involves inference from the deflection of light emitted from (e.g. laser, infrared) source to structure, texture,anatomic and chemical properties of material (e.g. cristal, cell tissue). Optical imaging systems may be divided into diffusive and ballistic imaging systems.

For more information about Optical imaging, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.