Patent Filing No. 1296/KOL/2010, PCT
application No. PCT/IN2011/000789, Countries filed: USA, South Korea: An improved ultrasound imaging method/technique for speckle reduction/suppression in an improved ultra sound imaging system
Patent Filing No: 636/KOL/2010: Super-resolution on Polar Domain Data
Award won
One of the Top 50 technologies of
DST Lockheed Martin India Innovation Growth Program Award 2015
Background
First picture of most babies is
captured before their birth using ultrasound (US) imaging. However, US imaging
lacks spatial resolution and suffers from multiplicative nature of speckle
noise. Newer technologies require more hardware that drives the cost but does
not increase the image quality in the depth of the body. Our invention using
super resolution (SR) and novel speckle removal algorithm improves image
quality and increases operating depth of imaging with a minimal increment in
cost. Rural India (>6 lakh villages) provides a big market to exploit the
benefit of low cost SR enhanced US system with reduction in maternal mortality
rate and improving surgical outcomes. Estimated reduction in cost would be at
least 70-80% in comparison with a more hardware intensive equipment.
Technical summary
Ultrasound is safest, most
inexpensive and highly portable method of imaging making it first line of
imaging in most clinical conditions. However, it is characterized by low
resolution as compared to other imaging techniques. Also, depth of penetration
decreases with increase in operating frequency. We have invented novel speckle
removal algorithm which together with super-resolution technique helps to
significantly enhance resolution and operating depth of ultrasound imaging.
These improvements make even subtle changes in diseased conditions more visible
for better clinical diagnosis. Our invention does not need significant change
in ultrasound equipment hardware (sensors and signal processing). Therefore our invention provides better image
quality at no added cost.
Advantages
- Innovation is related to design and
fabrication of Ultrasound Imaging System.
- Using multiple images taken by low cost
hardware Super Resolution technique. can produce better quality image
- Combining scan conversion with post
processing helps to get better speckle noise suppression with lower
computation.
- Only a modest increase in computation
capability resulting in better image means reduction of Ultrasound imaging
system
- Areas of the body with low motion, e.g.
abdomen, neonatal brain, musculoskeletal, etc. are ideal for such imaging.
- Increase in image quality
helps to increase the operating depth of the Ultrasound imaging systems.
Commercial applications
SR enhanced US systems have large
market potential due to significant reduction in cost. US equipment market will
be $6.2 billion by 2019. 2-D US imaging is 50% of existing market. Assuming SR
forms 5% of 2-D US imaging equipment value, the market potential for our
product is $0.15M. If we captured 10% of 2-D US market share by 2019, estimated
market value for product would be $150,000 per year. Algorithms for SR have been
developed and have been tested with US simulator and now it should be
integrated with US equipment for clinical efficacy before selling.