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Image: PRE: Pretreatment transverse MR image obtained with perfusion technique shows an enhancing lesion of 1.2 cm (circled) in the upper quadrants of the right breast; the lesion shows with irregular margin and appears color-coded in red due to the washout pattern (malignancy). POST: Same MR image technique obtained post-treatment (10 days): Absence of enhancement was seen at perfusion color-coded image after noninvasive thermal ablation with MR-guided high-intensity focused ultrasound; the black hole stands for necrosis nicely demonstrating also the absence of residual tumor (Photo courtesy of RSNA).

MR-Guided Ultrasound Offers Effective Noninvasive Treatment for Breast Cancer

A technique that utilizes focused ultrasound under magnetic resonance imaging guidance to heat and destroy tumors may offer a safe and effective treatment for breast cancer.    More...
16 Dec 2013
Image: NIST physicist Michael Boss positions a prototype NIST phantom in an ultralow-field magnetic resonance imaging scanner at the University of California at Berkeley. NIST phantoms are intended to help assess and validate this experimental imaging method, which offers advantages in diagnosing and monitoring of certain medical conditions (Photo courtesy of NIST).

Calibration Tools Used to Enhance Ultralow Field MRI Technology

A US technology office has developed prototype calibration tools for an experimental medical imaging technique that offers new benefits in diagnosing and tracking of specific cancers and other medical disorders.   More...
16 Dec 2013
Image: Diffusion tensor imaging (DTI) MR image (Photo courtesy of RSNA).

DTI-MRI Reveals Long-Term Effect of Blast-Induced Brain Injuries

Using a form of magnetic resonance imaging, researchers revealed that soldiers who suffered mild traumatic brain injury triggered by blasts exhibit long-term brain differences.  More...
12 Dec 2013
Image: Flowchart illustrates the steps of the connectivity analysis. MP-RAGE (magnetization-prepared rapid acquisition gradient echo) volumes are segmented into 83 region of interest (ROIs), which are further parcellated into 1,000 cortical and 15 subcortical ROIs. Whole-brain white matter tractography is performed after voxelwise tensor calculation, and the density of fibers that connect each pair of cortical ROIs is used to calculate structural connectivity. T1w = T1-weighted (Photo courtesy of RSNA).

MR Research Reveals Altered Brain Connections in Epilepsy Patients

New imaging findings show that patients with the most typical form of focal epilepsy have widespread, abnormal connections in their brains. This new research could provide insights for better diagnosis and treatment of the disorder.   More...
12 Dec 2013
Image: Anatomy (MRI) of the brain—15 weeks premature (Photo courtesy of RSNA).

MR Spectroscopy Shows Differences in Brains of Preterm Infants

Premature birth appears to induce developmental mechanisms in the brain’s white matter that could put children at higher risk of problems later in life, according to recent imaging research.    More...
10 Dec 2013
Image: To visualize cardiac MR tagging, cross-section of the heart in common imaging technique is seen on the left and tagged myocardium using CSPAMM (complementary spatial modulation of magnetization) on the right (Photo courtesy of RSNA).

Cardiac MRI Reveals Energy Drinks Alter Heart Function

Healthy adults who consumed energy drinks high in taurine and caffeine had significantly increased heart contraction rates one hour later.    More...
09 Dec 2013
Image: The study used fMRI to analyze the brain while participants chose positive, negative, and neutral adjectives to describe either themselves or the British Queen (Photo courtesy of the University of Liverpool).

Personal Contemplation Triggers Increased Brain Activity during Depressive Episodes

British investigators have shown that people experiencing depressive attacks display increased brain activity when they think about themselves.   More...
21 Nov 2013
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MedImaging's MRI channel in addition to reporting on MR hardware, informs about the many magnetic resonance applications possible with the technique notably MRI, fMRI, diffusion MRI, MR angiography, MR guided surgery, in addition to industry developments, and safety issues.
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