Radiology Professor Creates Beautiful Art Using MRI Scanner
Magnetic resonance imaging (MRI) can produce a great deal of data about the tissues it images. Controlling how an MRI scans and then analyzing its data in novel ways can lead to interesting perspectives on the human body.
Dr. Denis Ducreux, a professor at the University of Paris-Sud and head of the Diagnostic Neuroradiology Department at Bicêtre Hospital in France, has been studying the limbic system of the brain using MRI. As part of his studies of this region, which is central to our emotions, long term memory, and even smell, Dr. Ducreux has been using GE Healthcare’s 3T SIGNA Architect MRI, along with software ...
Source: Medgadget - May 31, 2019 Category: Medical Devices Authors: Medgadget Editors Tags: Art Neurology Source Type: blogs
Assessing SCD risk in HCM by CMR
Sudden cardiac death (SCD) is one of the dreaded complications of hypertrophic cardiomyopathy (HCM) and predicting it is always challenging. Clinical risk stratification algorithms lack good sensitivity and specificity. Myocardial disarray has been well documented in those who died suddenly with HCM. Cardiac magnetic resonance imaging with a novel technology known as diffusion tensor cardiac magnetic resonance (DT-CMR) is a promising way for in vivo demonstration of myocardial disarray [1].
DT-CMR can visualise myocardial microstructure by mapping the diffusion of water molecules. But it is technically challenging and ac...
Source: Cardiophile MD - May 23, 2019 Category: Cardiology Authors: Prof. Dr. Johnson Francis Tags: Cardiology Source Type: blogs
What Does the Helium Shortage Mean for MRI?
Not only is Party City shutting down 45 stores in part because of the worldwide helium deficit, but medical imaging centers are also vulnerable to the short supply.The chemical element is a byproduct of natural gas production and the second-most common element in the universe. At one point the United States was the world ’s top helium producer, but got wrapped up in financial troubles and resorted to selling off its reserves in the late 1990s. Yet as of recently, Qatar, the world’s main producer of helium and claims 75 percentof global supply, was forced to stop exporting the gas after a handful of Middle Eastern coun...
Source: radRounds - May 17, 2019 Category: Radiology Authors: Julie Morse Source Type: blogs
Highly accurate test reveals recurring prostate cancer
After being treated for prostate cancer, some men will experience a rise in PSA levels suggesting that new tumors lurk somewhere in the body. Finding these tiny cancerous deposits before they grow and spread any further is crucially important. But it’s also a challenge, since the budding tumors might be too small to see with standard tools such as magnetic resonance imaging.
Now scientists in California have published results with an experimental imaging technique that detects recurring prostate cancer with the best accuracy reported yet. Importantly, some of the unveiled tumors were “still curable with targeted radiat...
Source: Harvard Health Blog - April 29, 2019 Category: Consumer Health News Authors: Charlie Schmidt Tags: Living With Prostate Cancer HPK Source Type: blogs
Neuromyth: Brain Scanners “See” Thinking
This article seems to go hand in hand with another, “Brain Researchers Can Detect Who We Are Thinking About,” 116 which explains how imaging techniques work. The belief that brain scanners can see people’s thinking is due to lack of scientific literacy and/or expert knowledge about the limits of technology. In general, these headlines simply overextend the actual research findings. This is not their fault, however, as that is the job of a headline. The fault is in not reading beyond the headline, which is the reader’s decision.
What We Know Now
Each brain imaging machine can, at best, measure a single dimension (...
Source: World of Psychology - April 19, 2019 Category: Psychiatry & Psychology Authors: Tracey Tokuhama-Espinosa, Ph.D. Tags: Neuromyths brain imaging machine Brain Scan Brain Scanner Neuroscience Source Type: blogs
New Checklist Effectively Determines if a Child Needs Anesthesia Before MRI
Researchers at the KK Women ’s and Children’s Hospital in Singapore have introduced a checklist to determine if a child needs general anesthesia (GA) before undergoing magnetic resonance imaging (MRI). The question set can be administered by non-medical staff and only takes a few minutes.In their studyrecently published inClinical Radiology,medical students and research assistants used the checklist questions with over 700 patients whose ages ranged from 3 to 20, and were scheduled for an MRI between September 2016 and June 2017. The average age of the patients was 11.7 years old.The checklist features five questions...
Source: radRounds - April 19, 2019 Category: Radiology Authors: Julie Morse Source Type: blogs
Using MRI and Machine Learning to Predict Cognitive Abilities in Infants
Magnetic Resonance Imaging (MRI) can now be used in conjunction with machine learning to predict cognitive development in infants, according to a studyrecently published inNeuroImage.White matter is intrinsic to developing brain activity, and the white matter connectome at birth can be used as a neuroimaging biomarker to calculate cognitive development. The group of researchers led by Jessica B. Girault, PhD, from the Carolina Institute for Developmental Disabilities at the University of North Carolina Chapel Hill are searching for imaging biomarkers like white matter to determine risks for neuropsychiatric conditions,...
Source: radRounds - April 19, 2019 Category: Radiology Authors: Julie Morse Source Type: blogs
Sudbury Is Still Waiting...
Bill Crumplin, with photo of his late wife Donna Williams, image courtesy Sudbury.comYou might recall mypost of a few years ago about Sudbury, Ontario, Canada, a medium-sized town that turned to its citizens to fund a PET/CT facility when the much-touted Health Service would not provide it. The wait-time was not just an inconvenience; the health of Sudbury citizens was adversely affected by the lack of local scanning capability.The wait goes on, it seems.My friend Stacey discoveredanother such tragedy related to imaging, or rather, lack thereof. As reported onSudbury.com:Donna Williams ’ dying wish was to raise money tow...
Source: Dalai's PACS Blog - April 4, 2019 Category: Radiology Source Type: blogs
An Amicable Discussion About Psychology and Neuroscience
DiscussionsThe role of semantic information in reading aloudMax Coltheart vs Mark Seidenberg2012: Panel DiscussionsWhat is the role of the insula in speech and language?Nina F. Dronkers vs Julius FridrikssonThis one-on-one format has been very rare at CNS. Last year we saw a panel of four prominent neuroscientist address/debate...Big Theory versus Big Data: What Will Solve the Big Problems in Cognitive Neuroscience?.@gallantlab" This debate is silly "#CNS2018pic.twitter.com/cpT7tKI0xa— CNS News (@CogNeuroNews)March 24, 2018Added-value entertainment was provided byDr. Gary Marcus, which speaks to the issue of combative pe...
Source: The Neurocritic - March 30, 2019 Category: Neuroscience Authors: The Neurocritic Source Type: blogs
Fight Aging! Newsletter, March 25th 2019
This study defines a new clinically relevant concept of T-cell senescence-mediated inflammatory responses in the pathophysiology of abnormal glucose homeostasis. We also found that T-cell senescence is associated with systemic inflammation and alters hepatic glucose homeostasis. The rational modulation of T-cell senescence would be a promising avenue for the treatment or prevention of diabetes.
Intron Retention via Alternative Splicing as a Signature of Aging
https://www.fightaging.org/archives/2019/03/intron-retention-via-alternative-splicing-as-a-signature-of-aging/
In recent years researchers have in...
Source: Fight Aging! - March 24, 2019 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
More Evidence for Hypertension to Produce Brain Damage
Hypertension, raised blood pressure due to age-related dysfunction of blood vessels, is an important process in aging. It is one of the more important ways in which low-level biochemical damage and cellular malfunctioning is converted into high level structural damage to tissues. Pressure damage to the sensitive tissues of the brain, kidney, lungs, and more causes large degrees of functional loss when taking place over years. In the brain, rupture of capillaries leads to countless tiny, unnoticed strokes, each destroying a small volume of brain tissue. This slowly adds up to produce cognitive decline and dementia, one smal...
Source: Fight Aging! - March 21, 2019 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
New MRI-Based Calcium Sensor Helps Us Better Understand Neuron Activity
Researchers have created a way to use magnetic resonance imaging (MRI) to measure calcium activity in order to analyze signal processing in neuron behavior in living animals, according to a study recently published inNature Communications.Calcium analysis can demonstrate critical neuron activity. However, current technology is limited, and can only enter the first few millimeters of the brain ’s surface. Researchers at the Massachusetts Institute of Technology have developed an MRI-based intracellular calcium sensor that can penetrate cell membranes. The technique identifies magnetic interactions with a manganese-based c...
Source: radRounds - March 16, 2019 Category: Radiology Authors: Julie Morse Source Type: blogs
When Should You Hold Your Breath During an Abdominal MRI?
Holding one ’s breath at the end of the exhale instead of at the end of the inhale during magnetic resonance imaging (MRI) scans of the liver can reduce respiratory motion artifacts, according to a studyrecently published in theAmerican Journal of Roentgenology.For the study, researchers from Stanford University collected both unenhanced and contrast-enhanced images of end-inspiration and end-expiration breath-holding techniques from 47 participants undergoing axial T1-weighted liver MRI. Three radiologists evaluated the quality of the images based on a rubric of one point for motion artifact-obscured to five points for...
Source: radRounds - March 16, 2019 Category: Radiology Authors: Julie Morse Source Type: blogs
ISCHEMIA Trial baseline data
International Study of Comparative Health Effectiveness With Medical and Invasive Approaches (ISCHEMIA) trial was sponsored by the New York University School of Medicine. Collaborators include National Heart, Lung, and Blood Institute (NHLBI), Stanford University, Duke University, Emory University, Harvard University and several other leading institutions.
ISCHEMIA trial randomized 5179 patients with stable ischemic heart disease with moderate to severe degree of inducible ischemia on stress testing. Blinded CT coronary angiogram was used to exclude those with significant unprotected left main coronary artery disease or ...
Source: Cardiophile MD - March 16, 2019 Category: Cardiology Authors: Prof. Dr. Johnson Francis Tags: Cardiology Source Type: blogs
Brainhack Donostia 2019 - 5th-8th of May 2019, BCBL, San Sebastian
Dear all,At the Basque Center on Cognition, Brain and Language (BCBL), we are organizing the second edition of Brainhack Donostia (https://brainhackdonostia.pages.bcbl.eu), an event focused on neuroscience and the promotion of open-source resources in an accessible way across disciplines and experience levels. This edition will take place on May 5th-8th 2019 at BCBL, where two invited speakers and other scientists from BCBL will give talks and develop hands-on tutorials on data handling from several neuroimaging techniques. In particular, we will cover three techniques: Diffusion-Weighted Imaging (DWI), Magnetoen...
Source: Talking Brains - March 13, 2019 Category: Neuroscience Authors: Greg Hickok Source Type: blogs
