Navigation Links
New discovery may enhance MRI scans, lead to portable MRI machines
Date:11/25/2008

COLLEGE PARK, MD, Nov. 25, 2008 -- Researchers in Ohio and France have solved a longstanding scientific mystery involving magnetic resonance -- the physical phenomenon that allows MRI instruments in modern hospitals to image tissues deep within the human body. Their discovery, a new mathematical algorithm, should lead to new MRI techniques with more informative and sharper images.

As described in an article posted online today in the Journal of Chemical Physics, a peer-reviewed journal published by the American Institute of Physics (AIP), the work may even help scientists devise ways of using MRI without having to put people inside giant magnets -- an advance that could lead to portable and less costly MRIs.

The new work solves a mystery that has persisted for decades, says Philip Grandinetti, a professor of chemistry at The Ohio State University and one of the coauthors of the article. The solution to this mystery came as a result of their work in trying to optimize magnetic resonance pulse sequences. Specifically, they were looking for better ways of doing something known as an "inversion" in a magnetic resonance measurement.

Bathed in the magnetic field, atomic nuclei within water and other molecules throughout cells and tissues in a person's body will align themselves in the direction of the magnetic field. Inversion is an important process done in MRI scans that realigns the nuclei so they are against the magnetic field. When all is said and done, inverting the nuclei of people inside MRI scanners can reveal such things as cancer tumors, whose slightly different response to the changing field can be used to detect their presence amid surrounding healthy tissue.

These inversions of the nuclear spins are typically done "adiabatically". The method involves placing a patient inside the large donut-shaped magnet of an MRI instrument and applying low-power radio waves that sweep through a specific range of fre
'/>"/>

Contact: Jason Bardi
jbardi@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

0

GOOD

Page: 1 2

Related biology news :

1. Discovery of giant roaming deep sea protist provides new perspective on animal evolution
2. New $11 million center to speed production of new compounds for drug discovery
3. FSU researchers discovery leads to $1.5 million grant, potential new treatment of liver fibrosis
4. Nanoscopic screening process to speed drug discovery
5. Discovery of natural compounds that could slow blood vessel growth
6. Groundbreaking discovery may lead to stronger antibiotics
7. Sirtris review of sirtuin therapeutics for diseases of aging in Nature Reviews Drug Discovery
8. Chemical equator discovery will aid pollution mapping
9. Life Sciences Discovery Fund advances latest research proposals
10. Plants in forest emit aspirin chemical to deal with stress; discovery may help agriculture
11. MSUs discovery of plant protein holds promise for biofuel production

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/30/2009)...CLEMSON Clemson University researchers Ron Falta ...nmental Protection Agency grant to study the safe ... located deep below the earth,s surface. , With ... believed to be the leading cause of global warmin...promising alternatives for reducing emissions usin...
(Date:11/30/2009)...w Orleans, LA Researchers from LSU Health Science...ce Kennedy Shriver National Institute of Child Hea...of Public Health, Brigham and Women,s Hospital, an... time that drinking more than 5 servings of sugar-...to significantly elevate the risk of developing di...
(Date:11/30/2009)...o so-called invasion proteins are crucial for infe...ce of human cells, which stimulates the host cell ...molecules exert a different function, for example ...he group,s results have now been published in the ...y ". , Spoiled meat is one of the sources for L...
Breaking Biology News(10 mins):Sugary cola drinks linked for first time to higher risk of gestational diabetes 2Sugary cola drinks linked for first time to higher risk of gestational diabetes 3It takes 2 to infect 2Healthnostics Medbioworld com Portal Web Site to Include Social Networking Features 14385 1Healthnostics Medbioworld com Portal Web Site to Include Social Networking Features 14385 2United States Securities and Exchange Commission Declares Effective Registration Statement for NeoStems Acquisition of China Biopharmaceuticals Holdin 14383 1United States Securities and Exchange Commission Declares Effective Registration Statement for NeoStems Acquisition of China Biopharmaceuticals Holdin 14383 2United States Securities and Exchange Commission Declares Effective Registration Statement for NeoStems Acquisition of China Biopharmaceuticals Holdin 14383 3United States Securities and Exchange Commission Declares Effective Registration Statement for NeoStems Acquisition of China Biopharmaceuticals Holdin 14383 4DBMS Consulting Successfully Completes Roll out of Oracle Health Sciences Applications 28OHSA 29 Suite for SIRO Clinpharm 5294 1DBMS Consulting Successfully Completes Roll out of Oracle Health Sciences Applications 28OHSA 29 Suite for SIRO Clinpharm 5294 2DBMS Consulting Successfully Completes Roll out of Oracle Health Sciences Applications 28OHSA 29 Suite for SIRO Clinpharm 5294 3
...entists develop the world,s thinnest balloon, Nan...g development of the world,s thinnest balloon, mad...k. This so-called graphene sealed microchamber is ..., including helium. It has a range of applications...the atomic level, they say in a study scheduled fo...
... the messages it receives from its genome. Sometim... most cell types these delayed messages are stored... (processing bodies). P bodies in worm egg cells, ...per by Boag et al. to be published in the Aug 11th...rate study Noble et al. report that worm eggs have...
...e less efficient at getting rid of damaged protein... especially pronounced in Alzheimer,s, Parkinson,s..., Now, for the first time, scientists at the Albe...ity have prevented this age-related decline in an ...lt, the livers of older animals functioned as well...
Other Biology News:American Chemical Society's Weekly PressPac -- Aug. 6, 2008 2American Chemical Society's Weekly PressPac -- Aug. 6, 2008 3American Chemical Society's Weekly PressPac -- Aug. 6, 2008 4American Chemical Society's Weekly PressPac -- Aug. 6, 2008 5American Chemical Society's Weekly PressPac -- Aug. 6, 2008 6American Chemical Society's Weekly PressPac -- Aug. 6, 2008 7American Chemical Society's Weekly PressPac -- Aug. 6, 2008 8American Chemical Society's Weekly PressPac -- Aug. 6, 2008 9In scientific first, Einstein researchers correct decline in organ function associated with old age 2In scientific first, Einstein researchers correct decline in organ function associated with old age 3
(Date:11/30/2009)..., BLOOMINGTON, Minn., Nov. 30 Ac...dical image management software, data migration to... Allina Hospitals and Clinics for a new Vendor Neu...age storage across the Allina network of hospitals...tion is based on the Acuo Technologies DICOM Servi...
(Date:11/30/2009)... , BRIARCLIFF MANOR, N.Y., Nov. 30 /PRNewsw...guidance document for the publication of company-s...ne today by the British Medical Journal (BMJ). "Th... of the importance of providing support and guidan...tion of study results in the peer-reviewed medical...
(Date:11/30/2009)... , CHANGCHUN, China and LOS ANGELES, Nov. ...armaceuticals, Inc. (OTC Bulletin Board: CYXN; ,Ch...leading manufacturer, distributor and,retailer of ...nced it has,completed preparation for distribution... The Chinese government recently formalized the ...
(Date:11/30/2009)... PDS, a leader in providing smart...ty, announces Pajama Pathology®, evolutionizin...ame ‘gold standard’ software used by 8...ld, but on a ‘cost per slide’ basis. ...EB) November 30, 2009 -- PDS has announced another...
Breaking Biology Technology:Acuo Technologies Announces Contract for Vendor Neutral Archive With Allina Hospitals and Clinics 2Acuo Technologies Announces Contract for Vendor Neutral Archive With Allina Hospitals and Clinics 3ISMPP Announces Publication of Good Publication Practice for Communicating Company-Sponsored Medical Research: GPP2 Guidelines Published in the BMJ 2ISMPP Announces Publication of Good Publication Practice for Communicating Company-Sponsored Medical Research: GPP2 Guidelines Published in the BMJ 3China Yongxin Pharmaceuticals Inc. to Distribute Medicines on the Essential Drug List 2China Yongxin Pharmaceuticals Inc. to Distribute Medicines on the Essential Drug List 3Pajama Pathology -- the New Wave of Preclinical Pathology Embraced by PDS 2Pajama Pathology -- the New Wave of Preclinical Pathology Embraced by PDS 3
..., Wis . - Gov. Jim Doyle has announced that Ber...pand on the Fitchburg Technology Campus, will rece... , ,Berbee, founded in 1993, plans to invest in a ...0-square-foot data center in the New Venture Cente...s. , ,The project is expected to cost $1.9 millio...
...lis, Wis. - Merge Technologies reported a net l...irst quarter of 2007, more than double the net los...t quarter of 2006. , ,While the first quarter loss...are net loss reported in the fourth quarter of 200...ny that is trying to emerge from financial reporti...
...front in the War for Talent is opening up. Tens of...hnology and media are set to join, or are already ...and ways of working that will revolutionize the wo...passion and harness the skills of these "media-sav...rs. Here,s why. , ,Until recently, workers of all...
Other Biology Technology:Media-savvy workers: New front in the War for Talent 2Media-savvy workers: New front in the War for Talent 3Media-savvy workers: New front in the War for Talent 4Media-savvy workers: New front in the War for Talent 5
...eal CO2 incubator for cell and tissue cultures, in...ody temperature. HERAcell incubators are specifica...ct and grow your valuable samples: , , Safe and s... growth. , ContraCon 90 C decontamination routine...
...ort Mass Directed Auto Purification software, a we...signed for automated compound isolation and purifi...covery programs. The system has been designed spec... auto purification for synthetic chemists using a ...
...antibody was derived from rabbit immunized with hi...inant protein domains such as antibody fragments c... on phage using phagemid-based systems (1), rather... libraries. Anti-M13 pIII Monoclonal Antibody can ...
Rapid DNA Ligation Kit from Roche Applied Science
Biology Products: