HOME >> MEDICINE >> NEWS
Using nanomagnets to enhance medical imaging

Nanoscale magnets in the form of iron-containing molecules might be used to improve the contrast between healthy and diseased tissue in magnetic resonance imaging (MRI)as long as the concentration of nanomagnets is carefully managedaccording to a new report* by researchers at the National Institute of Standards and Technology (NIST) and collaborators. Molecular nanomagnets are a new class of MRI contrast agents that may offer significant advantages, such as versatility in design, over the compounds used today.

Contrast agents are used to highlight different tissues in the body or to help distinguish between healthy and diseased tissue. NIST is working with two universities and a hospital to design, produce and test nanomolecules that might make MRI imaging more powerful and easier to perform. The new paper resolves a debate in the literature by showing that iron-containing magnets just two nanometers wide, dissolved in water, do provide reasonable contrast in non-clinical MRI imagesas long as the nanomagnet concentration is below a certain threshold. (A nanometer is one billionth of a meter.) Previous studies by other research groups had reached conflicting conclusions on the utility of molecular nanomagnets for MRI, but without accounting for concentration. NIST scientists, making novel magnetic measurements, were able to monitor the molecules' decomposition and magnetic properties as the composition was varied.

The injectable dyes currently used as MRI contrast agents are of two types. Magnetic ions, which alter the nuclear properties of hydrogen in water, offer the advantage of consistent identical design but provide low contrast. The second category encompasses particles of thousands of atoms or crystals, which alter local magnetic fields; they provide contrast variation in a larger region but have irregular designs and magnetic properties that are difficult to control. By comparison, molecular nanomagnets can be designed to have consiste
'"/>

Contact: Laura Ost
laura.ost@nist.gov
303-497-4880
National Institute of Standards and Technology (NIST)
1-Feb-2007


Page: 1 2

Related medicine news :

1. Using coxibs and NSAIDs to treat osteoarthritis
2. Using MRI for diagnosis could help prevent breast cancer progression
3. Using morphine to hasten death is a myth, says doctor
4. Using contrast enhanced sonography improves diagnosis of liver and spleen injuries
5. Using device to give CPR does not improve survival
6. Using HPV testing to screen for cervical cancer
7. Citizen consumers? Using public services is not like shopping
8. Using statins to potentially treat rheumatoid arthritis
9. Using mobile phones reduces error rate in hospital care
10. Emergency department guidelines enhance quality patient care
11. Chemotherapy may enhance the effectiveness of brain tumor vaccines

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/6/2018)... ... December 06, 2018 , ... The University of ... install LED light fixtures containing Indigo-Clean continuous environmental disinfection. The lights are ... the forefront of collegiate gymnastics programs across the nation by providing this new, proven ...
(Date:12/5/2018)... DALLAS, Texas (PRWEB) , ... December 05, 2018 ... ... proved its leading SkinPen Precision device is setting a new standard as the ... Aesthetics Everything win. , Each year this award is presented at the renowned ...
(Date:12/5/2018)... ... December 05, 2018 , ... ... patient and family engagement with the use of the Precision Virtual Reality® ... provides Children’s National’s world-renowned neurosurgeons and physicians with a never-before view of ...
(Date:12/5/2018)... ... December 05, 2018 , ... Marking its seventh year, ... celebration “A Toast Heard ‘Round the World” on New Year’s Eve. Each year ... global community (alumni, students, faculty members, staff, families, and friends of the institution) to ...
(Date:12/5/2018)... Ill. (PRWEB) , ... December 05, 2018 , ... ... CRO, FSP, Strategic Resourcing, and Consulting services, announced its new office location in ... will accommodate organic growth of clinical trial operations in Europe and additional in-country ...
Breaking Medicine News(10 mins):
(Date:12/5/2018)... ... 05, 2018 , ... NDA Partners Chairman Carl Peck, ... Laboratory Integration at the United States Pharmacopeial Convention (USP), has joined the firm ... experience in domestic and international operations harmonization, compendial affairs, and the development and ...
(Date:11/29/2018)... Fla. (PRWEB) , ... November 29, 2018 , ... ... practitioner-channel dietary supplement company – announced today the launch of the Annatto-E™ product ... annatto plant (Bixa orellana). Backed by clinical research, DFH’s new Annatto-E™ products are ...
(Date:11/29/2018)... ... ... Windsor Gardens Healthcare Center of the Valley (“Windsor Gardens”), a skilled ... selected by the California Association of Health Facilities (CAHF) as only one of 20 ... California Department of Public Health awarded a grant of $700,000 to CAHF to develop ...
Breaking Medicine Technology:
Cached News: