How video game processors could save lives

Are you dreading upgrading your graphics processor yet again just so you can get lost in the alien-infested urban jungle of Crysis 2? Rest-assured that the immersive power of these state-of-the-art video processors is now being used for more than just visual pleasure.

A new technique for processing X-rays appears to lower the radiation patients are exposed to during cone beam computed tomography (CBCT) scans by a factor of 10 or more, according to researchers at the University of California, San Diego.

The research is being presented this week at the American Association of Physicists in Medicine's 52nd annual meeting in Philadelphia.

Lead author Xun Jia, a UCSD postdoctoral fellow, based his team's work on recent advances in compressed sensing by developing a CT reconstruction algorithm for graphics processing unit platforms (GPU cards being used for 3D computer graphics, often in video games), thereby increasing computational efficiency to reconstruct a cone beam CT scan in just minutes.

Image-guided radiation therapy (IGRT), a state-of-the-art cancer treatment, relies on dozens and even hundreds of scans during radiation therapy to more precisely target tumors and minimize radiation to surrounding, healthy tissue. (It is a cruel irony that treating cancer can simultaneously increase one's risk of getting cancer.)

The team wanted to investigate ways to reduce this large, cumulative radiation dose, but tuning down the X-ray generator pulse rate, pulse duration, and/or current during a CT scan results in mathematically incomplete data that involves hours of processing.

Compared to the widely used scanning protocol of about 360 projections, Jia says this new processing method uses only 20 to 40 projections, each with lower radiation levels, resulting in 36 to 72 times less exposure over the course of the CT scan.

The reconstruction algorithm is only one piece of the puzzle for the UCSD researchers, whose larger goal is to develop a series of GPU-based low-dose technologies for CT scans.

"The most interesting and compelling possibilities of this technique are beyond cancer radiotherapy," says senior author Steve Jiang. "For each year's use of today's scanning technology, the resulting cancers could cause about 14,500 deaths. Our work, when extended from cancer radiotherapy to general diagnostic imaging, may provide a unique solution to solve this problem by reducing the CT dose per scan."

Source: CNET

Tags: GPU

Comments
Add comment

Your name:
Sign in with:
or
Your comment:


Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party


Last news

 
Google’s voice assistant platform has been known as Google Now
 
The SanDisk 1TB SD card prototype represents another significant achievement as growth of high-resolution content
 
Microsoft is developing a new “Skype for Life” client
 
Siri on the Mac is new, and is similar to that on the iOS
 
The latency in this test was supposedly no more than 2 milliseconds
 
Apple has made to the iPhone 7/7 Plus is by making the home button a solid state button
 
Android Nougat should eventually extend back to the Galaxy S6 generation
 
You’re not supposed to expose the iPhone to water anyway
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /
HP Slate 7 is a 7-inch Android 4 Tablet PC with good sound
A cost-effective, 7-inch tablet PC from a renowned manufacturer
October 25, 2013 / 4
 
 

News Archive

 
 
SuMoTuWeThFrSa
    123
45678910
11121314151617
18192021222324
252627282930 




Poll

Do you like Windows 10?
or leave your own version in comments (32)