Posts Tagged brain
MR Spectroscopy Helps Identify Cancerous Breast Tumors
Measuring the biochemical changes in breast tumors with magnetic resonance (MR) spectroscopy enables radiologists to more accurately distinguish benign tumors from cancerous ones, according to a study appearing in the August issue of the journal Radiology.
“Adding spectroscopy to breast MR examinations will not only reduce concern over possible missed cancers and unnecessary biopsy procedures, it may also improve the efficiency and quality of patient care,” said co-author Sina Meisamy, M.D., a postdoctoral fellow at the University of Minnesota Center for Magnetic Resonance Research in Minneapolis.
MR imaging of the breasts has a high rate of sensitivity (94 percent – 100 percent) for detecting tumors, but a variable rate of specificity (37 percent – 97 percent) for distinguishing malignant from benign tumors.
Tags: benign tumor, benign tumors, biopsy, brain, breast, breast mr, breast tumor, breast tumors, cancer, cancerous tumors, journal, magnetic resonance, malignant tumor, malignant tumors, mr spectroscopy, professor, quality, research, special, spectroscopy, spectrum, study, tumor, tumors, university, university ofRelated posts
MR Spectroscopy May Help Avoid Invasive Procedures And Treatments For Recurrent Brain Lesions
A clinical decision model which uses MR spectroscopy to help physicians differentiate between recurrent tumors and changes in the brain tissue due to radiation treatments, may help patients avoid invasive procedures and treatments, according to a study performed at the University of Michigan Health System in Ann Arbor, MI.
The study included 33 patients who had undergone radiation treatment for brain tumors and had MRI examinations that showed new lesions (either a recurrent tumor or radiation changes). Patients then underwent MR spectroscopy and ratios of three metabolites, choline (Cho), creatine (Cr) and n-acetylaspartate (NAA) were calculated. An ROC curve and prediction model was then created, which determined the post-test probability of a patient having a recurrent tumor. For the study, the final number of patients with recurrent tumors was 20 and those with post-radiation change were 13.
Tags: brain, brain tumor, brain tumors, concentration, invasive procedures, journal, mr spectroscopy, spectroscopy, study, treatment for brain tumor, tumor, tumors, university, university ofRelated posts
Magnetic Resonance Spectroscopy and Autism Research
Autism was discovered almost a century ago, but, to this day, medical researchers do not know what causes the condition. Nevertheless, despite the fact that the cause is unknown, it is widely accepted that autism spectrum disorders are the result of brain abnormalities in relation to brain structure or function. However, due to the fact that underlying causes of these abnormalities remains a mystery, various studies have been conducted to learn more – studies such as Magnetic Resonance Spectroscopy and autism.
Magnetic resonance spectroscopy (MRS) is a scanning technique that is very similar to an MRI (magnetic resonance imaging). The main difference is the MRS method is non image based; however, both techniques can be utilized at the same time. The purpose of a magnetic resonance spectroscopy is to examine the brain’s hydrogen and phosphorus atoms, and gather information regarding the brain’s regions where chemical activity is present.
Tags: autism, autism spectrum disorder, brain, chemicals, levels, magnetic resonance, magnetic resonance imaging, magnetic resonance spectroscopy, process, research, spectroscopy, spectrum, studyRelated posts