Navigation Links
New 3-D colonoscopy eases detection of precancerous lesions
Date:7/31/2013

metric stereo endoscopy can potentially provide similar contrast to chromoendoscopy," Durr says. "And because it's an all-optical technique, it can give the contrast at the push of a button."

Originally developed as a computer vision technique, photometric stereo imaging can reproduce the topography of a surface by measuring the distances between multiple light sources and the surface. Those distances are used to calculate the slope of the surface relative to the light source, generating a representation of any bumps or other surface features.

However, the researchers had to modify the original technology for endoscopy because there is no way to know the precise distance between the tip of the endoscope and the surface of the colon. Because of this, the images generated during their first attempts contained distortions, particularly in locations where the surface height changes gradually.

To eliminate those distortions, the researchers developed a way to filter out spatial information from the smoothest surfaces. The resulting technology, which requires at least three light sources, does not calculate the exact height or depth of surface features but creates a visual representation that allows the colonoscopist to determine if there is a lesion or polyp.

"What is attractive about this technique for colonoscopy is that it provides an added dimension of diagnostic information, particularly about three-dimensional morphology on the surface of the colon," says Nimmi Ramanujam, a professor of biological engineering at Duke University who was not part of the research team.

The researchers built two prototypes one 35 millimeters in diameter, which would be too large to use for colonoscopy, and one 14 millimeters in diameter, the size of a typical colonoscope. In tests with an artificial silicon colon, the researchers found that both prototypes could create 3-D representations of polyps and flatter lesions.

The new te
'/>"/>

Contact: Andrew Carleen
acarleen@mit.edu
617-253-1682
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. American College of Rheumatology releases first classification criteria for polymyalagia rheumatica
2. U of Alberta researcher steps closer to understand autoimmune diseases
3. NIST releases Gulf of Mexico crude oil reference material
4. New insight into mechanisms behind autoimmune diseases suggests a potential therapy
5. Genetic research develops tools for studying diseases, improving regenerative treatment
6. Hot on the trail of metabolic diseases and resistance to antibiotics
7. Researchers identify new regulator in allergic diseases
8. UCSB study shows forest insects and diseases arrive in US via imported plants
9. Ben-Gurion U. licenses drug delivery platform for central nervous system diseases to NY biotech firm
10. Study finds soda consumption increases overall stroke risk
11. Family history of liver cancer increases risk of developing the disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/2/2015)... 2015 Research and ... the "Natural Language Processing Market by Type ... Pattern & Image Recognition) - Worldwide Forecast to ... The key vendors occupying the market are 3M, ... Corporation, NetBase Solutions, SAS Institute Inc., Verint Systems ...
(Date:6/30/2015)... June 30, 2015 To bolster its efforts and ... Corp. announced today the addition of two new team members. ... board advisor and David Raviv will act as ... HYPR Corp.,s commitment to providing the most secure solutions for ... co-founded Layer 7 Technologies, a provider of security and ...
(Date:6/26/2015)... June 26, 2015 ATL Technology, LLC, a top ... specialties in single use solutions, headquartered in Springville, ... (a California corporation with locations in ... San Jose, Costa Rica ). This acquisition ... with ATL Technology,s existing facility in ...
Breaking Biology News(10 mins):Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 2HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 3ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2
... Medicine scientists have identified a component of the ... the virus to rapidly and successfully invade the ... Gregory Smith, associate professor in immunology and microbiology ... found that viral protein 1-2, or VP1/2, allows ...
... bacteria on their surfaces, not all of which cause disease. ... non-pathogenic bacteria, scientists report that these surface bacteria vary depending ... are published March 27 in the open access journal ... the University of Colorado, Boulder. The study focused on ...
... Sam Gandy, MD, PhD, of the Icahn School of Medicine ... working to reprogram skin cells into brain cells to gain ... the Consortium, Dr. Gandy is collaborating with Scott Noggle, PhD, ... Disease and Director of the New York Stem Cell Foundation ...
Cached Biology News:How herpesvirus invades nervous system 2Mount Sinai leads global program using stem cells to accelerate cures for Alzheimer's disease 2
(Date:7/30/2015)... ... July 31, 2015 , ... Ralco is honored to announce ... Lyon County Fair to be held August 5-9 in Marshall. The Ralco Enrichment Center ... come from and how agriculture impacts their daily lives. This unique exhibit also features ...
(Date:7/30/2015)... ... July 30, 2015 , ... The 2015 Market Research Report on ... current state of the global Propanol market with a focus on the Chinese situation. ... Carboclor, Mitsui Chemicals, Oxea, ISU Chemical, Sanofi, Royal Dutch Shell, LG Chem and Zhejiang ...
(Date:7/30/2015)... SAN DIEGO, July 30, 2015   Senomyx , ... proprietary taste science technologies to discover, develop, and commercialize ... supply industries, today reported financial results for the second ... half of 2015, we remain on track to achieve ... and Chief Executive Officer of the Company. "Since our ...
(Date:7/30/2015)... 30, 2015  Discovery Laboratories, Inc. (Nasdaq: ... the second $1.0M tranche under a previously awarded ... valued at up to $3.0 million to support ... as a potential medical countermeasure to mitigate acute ... awarded an initial $1.0 million under this grant ...
Breaking Biology Technology:Ralco Announces Primary Sponsorship of Ralco Enrichment Center at Lyon County Fair 2Global Propanol Market Technical Data and Manufacturing Analysis 2020 2Global Propanol Market Technical Data and Manufacturing Analysis 2020 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 4SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 5SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 6SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 7SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 8SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 9Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 2Discovery Labs Receives $1.0 million under an SBIR Grant in Continuing Support of the Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 3
... Wis. The nation's dysfunctional healthcare system may undermine ... of electronic health records, according to a featured speaker at ... Jeff Grossman Dr. Jeff Grossman, president and CEO of ... on the role of IT in healthcare delivery. As he ...
... Doyle told a gathering of health professionals attending the ... of the first state to have a fully integrated ... to overcome barriers. , ,Speaking before a group of ... on the state's eHealth Initiative, Doyle said those barriers ...
... liability in identity theft cases was spelled out during ... and healthcare providers got a real sense of what ... hypothetical case of identity theft from an orthopedic hospital, ... how much trouble healthcare organizations can find themselves in ...
Cached Biology Technology:U.S. health system could undermine EHR progress 2U.S. health system could undermine EHR progress 3Doyle asks health professionals to overcome barriers 2Doyle asks health professionals to overcome barriers 3Managing the nightmare of identity theft 2Managing the nightmare of identity theft 3Managing the nightmare of identity theft 4
... CLS number is a new ... match Cornings product number. If ... order under the old Sigma-Aldrich ... service for assistance. Mfr ...
... clear polystyrene with frosted labeling surfaces, ... cell counting. 100% integrity tested. Linkage: ... product number, created to easily match ... availability yet, please order under the ...
... T7•Tag ® Ek Adaptor encodes a ... binding site (rbs), ATG translation initation codon, ... T7•Tag is a small epitope tag (11 ... the target protein with T7•Tag Monoclonal Antibody ...
The LIC Duet™ Mini Adaptor encodes a T7 promoter, lac operator, ribosome binding site (rbs), and an ATG translation initation codon. This adaptor is designed for expression of a target protei...
Biology Products: