Magnetic resonance imaging

A community portal about Magnetic resonance imaging with blogs, videos, and photos. According to Wikipedia.org: Magnetic Resonance Imaging , formerly referred to as Magnetic Resonance Tomography or, in chemistry, Nuclear Magnetic Resonance , is a method used to visualize the inside of living organisms as well as to detect the composition of geological structures. It is primarily used to demonstrate pathological or other physiological alterations of living tissues and is a commonly used form of medical imaging. MRI has also found many novel applications outside of the medical and biological fields such as rock permeability to hydrocarbons and certain non-destructive testing methods such as produce and timber quality characterization. The scanners used in medicine cost approximately $1 million USD per Tesla for each unit, with several hundred thousand dollars per year for maintenance. A man from Fraserburgh, Scotland, with terminal liver cancer become the first patient in the world to receive an MRI body scan in Aberdeen, U.K.

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Greater risks seen with certain imaging agents: FDA

From: www.reuters.com

WASHINGTON (Reuters) - A U.S. Food and Drug Administration review found the risk of a serious skin disorder is greater with MRI imaging contrast agents made by GE Healthcare, Bayer AG's and Covidien, according to an agency memo released on Wednesday. The review recommended that labels for the products -- GE Healthcare's Omniscan, Bayer AG's Magnevist and Covidien's Optimark -- recognize their greater risk for the disorder over other agents, the memo said. FDA officials released the memo ahead of a December 8 meeting to discuss the risks with all gadolinium-based contrast agents, which were ordered in 2007 to carry a "black-box" warning about ... Read Full Story

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Electromagnetic waveguides on diamond-based chips Used to Manipulate Quantum States at Gigahertz Rates

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imelgrat on

From: smarticle.co.uk

Physicists at UC Santa Barbara have made an important advance in electrically controlling quantum states of electrons, a step that could help in the development of quantum computing. In seperate research, another group controlled spin electronically The researchers have demonstrated the ability to electrically manipulate, at gigahertz rates, the quantum states of electrons trapped on individual defects in diamond crystals. This could aid in the development of quantum computers that could use electron spins to perform computations at unprecedented speed. Using electromagnetic waveguides on diamond-based chips, the researchers were able to generate magnetic fields large enough to change the quantum state of an atomic-scale ... Read Full Story

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NSF Lawsuit Claims Hospital Negligent For Using Gadolinium Contrast Dyes

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Cynthia111 on

From: www.newsinferno.com

Date Published: Tuesday, November 24th, 2009 St. Luke’s Hospital in Chesterfield, Mo. faces a lawsuit filed by a victim of nephrogenic systemic fibrosis (NSF). The plaintiff was administered a gadolinium based contrast dye at St. Luke’s several times starting in 2005, and was diagnosed with NSF in early 2007. NSF is a debilitating disease that leads to excessive formation of connective tissue in the skin and internal organs. It is characterized by high blood pressure, burning, itching, swelling and hardening of the skin. Other symptoms include red or dark patches on the skin; pain deep in the hip bones or ribs and muscle weakness. ... Read Full Story

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FDA sees varying risk from MRI agents

From: www.reuters.com

WASHINGTON (Reuters) - Imaging agents used with MRI scans appear linked to varying risks for a potentially fatal skin disease, U.S. Food and Drug Administration staff said in documents released on Tuesday. The FDA said a staff review found the highest risk of the skin disease, nephrogenic systemic fibrosis, was associated with GE Healthcare's Omniscan, Bayer AG's Magnevist and Covidien's Optimark. The lowest risk was associated with Prohance and Multihance, made by Bracco Diagnostics, the agency said. The agency said the staff review had limitations and it would take the issue to a panel of outside experts that meets in December. Staff in the ... Read Full Story

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MRI...class-action! Manufacturer Bayer AG rushes into settlement talks! No cure for Nephrogenic Systemic Fibrosis!

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julianayrs on

From: ijulian.blogspot.com

If you recall, I reported a few months ago that there was a pending class-action suit against the manufacturers of Gadolinium-based contrast agents used in the MRI scan process. Post: 03/15/2009 http://ijulian.blogspot.com/2009/03/mripending-class-action-lawsuit.html According to my sources, Bayer AG (one of the product makers of the dangerous agent that is ingested to facilitate a proper reading of an MRI or MRA) has confirmed that they have reached agreements in principle with several of the plaintiffs in the U.S. to settle without admission of liability. In their causes of action for the class-action suit, the plaintiffs alleged that individuals who ingested the contrast agent under the supervision of ... Read Full Story

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Nano-labels allow stem cell imaging

Iron-laden nanoparticles make non-toxic stem cell labels for magnetic resonance imaging. Imaging agents are used to enhance the resolution in magnetic resonance imaging (MRI), which allows internal structure of the body to be visualised. Xiaoyuan Chen at the National Institute of Health, Bethesda, has modified iron-oxide nanoparticles to make non-toxic and more efficient imaging agents. The iron nanoparticles can enter cells without killing...

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