Published: Sun, 30 Aug 2015 19:02:35 GMT
In patients with chronic ischemic heart disease, a small left ventricle with thick walls, is the strongest predictor of morphologic remodelling, which is generally considered a first step towards heart failure, according to unexpected findings.
Published: Fri, 28 Aug 2015 14:23:39 GMT
Pancreatic cancer is the fourth most common cause of cancer-related death in the United States and has a 5-year survival rate of only 6 percent, which is the lowest rate of all types of cancer. This low survival rate is partially attributed to the difficulty in detecting pancreatic cancer at an early stage.
Published: Fri, 28 Aug 2015 14:23:01 GMT
Biologists and engineers have developed a new non-invasive image processing technique to visualize embryo formation. Researchers were able to see, for the first time, the movement of all of the cells in living mammalian embryos as they develop under the microscope. This breakthrough has important implications for IVF treatments and pre-implantation genetic diagnosis. In the future, this approach could help with embryo selection to improve IVF success rates.
Published: Fri, 28 Aug 2015 12:10:34 GMT
Investigators have discovered that brain scans can be used to predict patients' response to antipsychotic drug treatment.
Published: Wed, 26 Aug 2015 18:42:36 GMT
Women who are obese have a higher risk and a worse prognosis for breast cancer, but the reasons why remain unclear. A new study explains how obesity changes the consistency of breast tissue in ways that are similar to tumors, thereby promoting disease.
Published: Wed, 26 Aug 2015 12:21:38 GMT
Depression and anxiety disorders are the most common psychiatric disorders. Over the last few years, molecular brain imaging using Positron Emission Tomography (PET) has helped us to identify important mechanisms involved in the development and treatment of these disorders, particularly those associated with the serotonin neurotransmitter system.
Published: Tue, 25 Aug 2015 01:19:59 GMT
Electronic triggers designed to search for key data, developed by researchers at Baylor College of Medicine and Michael E. DeBakey Veterans Affairs Medical Center, were able to identify and reduce follow-up delays for patients being evaluated for a diagnosis of colon or prostate cancer.
Published: Thu, 20 Aug 2015 17:50:57 GMT
A new, noninvasive technology employs CT scans to detect coronary artery disease. The system calculates how much blood is flowing through diseased coronary arteries that have narrowed due to a buildup of plaque. The patient does not need an invasive angiogram that involves threading a catheter to the heart.
Published: Thu, 20 Aug 2015 14:52:09 GMT
Researchers have developed tiny nanocrystals that could be used in the next generation of medical imaging technologies to light up cancer cells.
Published: Tue, 18 Aug 2015 18:24:15 GMT
How scientists study the effects of marijuana on the brain is changing. Until recently marijuana research largely excluded tobacco users from its participant pool, but scientists have found reason to abandon this practice, uncovering significant differences in the brains of individuals who use both tobacco and marijuana and the brains of those who only use marijuana.
Published: Tue, 18 Aug 2015 15:26:13 GMT
MRI scanners, normally used to produce images, can steer cell-based, tumor busting therapies to specific target sites in the body, researchers have discovered.
Published: Tue, 18 Aug 2015 15:24:29 GMT
An international team of researchers has conducted a proof-of-concept study that raises the possibility of using ultrasound techniques to detect cervical stiffness changes that indicate an increased risk of preterm labor in pregnant women. While additional work needs to be done, it may ultimately give doctors a new tool for determining when to provide treatment that can prevent preterm birth.
Published: Mon, 17 Aug 2015 20:08:38 GMT
A new study -- the first to examine the effects of combined radiation and chemotherapy on the healthy brain tissue of glioblastoma patients -- reveals not only specific structural changes within patients' brains but also that the effect of cancer therapy on the normal brain appears to be progressive and continues even after radiation therapy has ceased.
Published: Mon, 17 Aug 2015 17:23:33 GMT
Certain diseases, like Parkinson's and Huntingdon's disease, are associated with damage to the pathways between the brain's basal ganglia regions. For the first time, scientists have used a non-invasive brain-imaging tool to detect the pathways that connect the parts of the basal ganglia.
Published: Mon, 17 Aug 2015 12:54:32 GMT
A blood clot can potentially trigger heart attacks, strokes and other medical emergencies. Treatment requires finding its exact location, but current techniques can only look at one part of the body at once. Now, researchers are reporting a method, tested in rats, that may someday allow physicians to quickly scan the entire body for a blood clot.
Published: Wed, 12 Aug 2015 14:38:39 GMT
MRI can detect the earliest signs of breast cancer recurrence and fast-growing tumors, research shows. The approach of a new study detects micromestastases, breakaway tumor cells with the potential to develop into dangerous secondary breast cancer tumors elsewhere in the body. The approach may offer an improved way to detect early recurrence of breast cancer.
Published: Wed, 12 Aug 2015 14:38:30 GMT
Using real-time, high-resolution imaging, scientists have identified how a 'doorway' in the blood vessel wall allows cancer cells to spread from breast tumors to other parts of the body. The findings support emerging tests that better predict if breast cancer will spread, which could spare women from unnecessary treatments and lead to new anti-cancer therapies.
Published: Thu, 06 Aug 2015 19:14:00 GMT
During pregnancy, approximately 5 to 8 percent of women sustain traumatic injuries, including fractures and muscle tears. To help evaluate and manage these injuries, orthopaedic surgeons often recommend radiographs and other imaging studies. Most diagnostic studies are generally safe, and the radiation doses from these studies are well below thresholds considered risky, researchers now say.
Published: Wed, 05 Aug 2015 00:34:40 GMT
Sleeping in the side position, as compared to on one’s back or stomach, may more effectively remove brain waste and prove to be an important practice to help reduce the chances of developing Alzheimer’s and other neurological diseases, new research suggests.
Published: Tue, 04 Aug 2015 20:11:57 GMT
Researchers are developing a tiny biochemical sensor that can be implanted in cancerous tissue during initial biopsy. The sensor wirelessly sends data about telltale biomarkers to an external “reader” device, allowing doctors to better monitor a patient’s progress and adjust dosages or switch therapies accordingly.