Medical Devices

Medical Devices News -- ScienceDaily Latest research news on medical devices and medical technology.

  • Anti-epilepsy drug restores normal brain activity in mild Alzheimer's disease
    on June 23, 2017 at 5:15 pm

    An anti-epileptic drug has been tested for its potential impact on the brain activity of patients with mild Alzheimer's disease. The team documented changes in patients' EEGs that suggest the drug could have a beneficial effect. […]

  • Does MRI plus mammography improve detection of new breast cancer after breast conservation therapy?
    on June 22, 2017 at 4:19 pm

    A new article compares outcomes for combined mammography and MRI or ultrasonography screenings for new breast cancers in women who have previously undergone breast conservation surgery and radiotherapy for breast cancer initially diagnosed at 50 or younger. […]

  • Diagnosing obesity by mathematically estimating abdominal fat
    on June 20, 2017 at 1:32 pm

    Abdominal obesity, or fat that accumulates around one's stomach and abdomen, has long been considered to pose a high health risk in individuals. Hence, measurement of abdominal fat helps predict propensity to disorders caused by excess weight in the abdominal area. In a new paper, researchers propose a new technique to evaluate abdominal obesity by estimating the thickness of subcutaneous fat. […]

  • New adjustable optical microprobe for the analysis and control of deep brain regions
    on June 20, 2017 at 1:31 pm

    Researchers have developed a new optical microprobe able to control brain electrical activity by projecting light on wide volumes or selected portions of the central nervous system in an very controlled fashion. The study was published on Nature Neuroscience and it represents a first step toward low invasiveness devices for the diagnosis and treatment of neurological and psychiatric disorders and neurodegenerative diseases. […]

  • Nanoparticle based contrast agent developed for dual modal imaging of cancer
    on June 20, 2017 at 1:31 pm

    Dual modal imaging which shares the advantages of two imaging modalities such as magnetic resonance imaging and optical imaging, has the ability to produce images with higher spatial resolution and higher sensitivity. Contrast agents having both magnetic and optical properties identifies the cancer cells efficiently. Europium doped gadolinium oxide nanorods were synthesized and subsequently coated with silica to improve the biocompatibility. […]

  • Pacemakers and other cardiac devices can help solve forensic cases
    on June 20, 2017 at 1:27 pm

    Health evices may reveal time and cause of death when autopsy fails, a new report suggests. […]

  • New magnet technology creates easy blood access for hemodialysis patients
    on June 14, 2017 at 3:28 pm

    A new, minimally invasive system which uses radiofrequency energy instead of open surgery to create access for patients needing hemodialysis is reliable, with minimal complications, according to data. […]

  • Single dual time-point PET scan identifies dual Alzheimer's biomarkers
    on June 13, 2017 at 10:51 pm

    Identifying Alzheimer's disease before major symptoms arise is critical to preserving brain function and helping patients maintain quality of life. A new study demonstrates that a single dual time-point PET scan could identify important biomarkers of the disease. […]

  • Neuro-receptor PET could provide an early warning for alcoholic relapse
    on June 12, 2017 at 1:41 pm

    A study reveals how brain receptors involved in the compulsion to drink, adapt to alcohol-dependency by reducing their bioavailability, but return to their normal availability after a modest period of detoxification. Receptor availability at the outset of sobriety could also serve as a predictor of long-term success. […]

  • Targeted photodynamic therapy shown highly effective against prostate cancer
    on June 12, 2017 at 1:41 pm

    Researchers have demonstrated the efficacy and optimal dose for targeted photodynamic therapy (tPDT) to treat prostate cancer before and during surgery. Prostate-specific membrane antigen (PSMA) was targeted with an anti-PSMA antibody radiolabeled with the tracer indium-111 (111In) and coupled with specialized photosensitizers that cause cell destruction upon exposure to near-infrared (NIR). […]

  • PET imaging of atherosclerosis reveals risk of plaque rupture
    on June 12, 2017 at 1:41 pm

    A hybrid molecular imaging system unites three imaging modalities to map the composition of dangerous arterial plaques before they rupture and induce a major cardiac event, shows new research. […]

  • Radiation therapy vital to treating brain tumors, but it exacts a toll
    on June 9, 2017 at 5:38 pm

    Radiation therapy (RT) using high-energy particles is a common and critical component in successfully treating patients with brain tumors but it is also associated with significant adverse effects. In a new study, researchers report that irradiation can cause broader adverse effects, altering the structural network properties in impacted brains and perhaps contributing to delayed cognitive impairments observed in many patients following brain RT. […]

  • Alternative to blood thinners available for patients with atrial fibrillation
    on June 7, 2017 at 6:30 pm

    A new, implantable cardiac device to reduce the risk of stroke in patients with atrial fibrillation is now available, providing an alternative to the long-term use of blood thinners. […]

  • Novel approach to seeing dengue infection in the body
    on June 6, 2017 at 1:02 pm

    Positron emission tomography (PET) paired with the glucose metabolism probe, fluorodeoxyglucose (FDG), is considered 'old' technology in the field of cancer. A team found a new use for this 'old' technology in infectious diseases research. Using FDG-PET to image dengue infection in mice, the team has potentially uncovered a novel way to track the infection in real-time and more accurately assess the effectiveness of new dengue treatments. […]

  • Imaging technique for treating heart condition should be more widely used to minimize radiation...
    on June 1, 2017 at 7:19 pm

    A technique to treat an irregular heartbeat that limits or eliminates patients' exposure to radiation should be more widely adopted by physicians, cardiologists argue in a new review article. They posit that the primary obstacle to the procedure's widespread use -- physicians' discomfort with a different visual tool -- can be overcome with training and experience. […]

  • Combined optical and molecular imaging could guide breast-conserving surgery
    on June 1, 2017 at 5:56 pm

    Breast-conserving surgery is the primary treatment for early-stage breast cancer, but more accurate techniques are needed to assess resection margins during surgery to avoid the need for follow-up surgeries. Now, in a first-in-human study, researchers have provided a possible solution using Cerenkov luminescence imaging (CLI), which combines optical and molecular imaging. […]

  • Artificial intelligence predicts patient lifespans
    on June 1, 2017 at 4:41 pm

    A computer's ability to predict a patient's lifespan simply by looking at images of their organs is a step closer to becoming a reality, thanks to new research. […]

  • New prostate cancer technology improves biopsy accuracy
    on May 31, 2017 at 1:27 pm

    New prostate cancer technology is improving the accuracy of biopsies. The technique fuses information from a prostate MRI to ultrasound images taken during the biopsy. The technique results in higher cancer detection, fewer biopsies and more accurate biopsies. […]

  • Detecting Alzheimer's disease before symptoms emerge
    on May 31, 2017 at 1:26 pm

    Cognitive tests can detect early Alzheimer's disease in older adults without symptoms according to a new study. […]

  • Handheld scanner reveals vascularization in psoriasis patients
    on May 31, 2017 at 1:25 pm

    A newly developed tissue scanner allows looking under the skin of psoriasis patients. This provides clinically relevant information, such as the structure of skin layers and blood vessels, without the need for contrast agents or radiation exposure. […]

  • Brain opioids help us to relate to others
    on May 30, 2017 at 2:41 pm

    New research reveals how the brain's opioids modulate responses towards other people's pain. […]

  • Breakthrough in how autopsy practice is conducted worldwide
    on May 24, 2017 at 11:16 pm

    Research suggests non-invasive post-mortem should become future standard first-line test in natural death. […]

  • Recreational cocaine: Brain area involved in addiction activated earlier than thought
    on May 23, 2017 at 6:41 pm

    Even among non-dependent cocaine users, cues associated with consumption of the drug lead to dopamine release in an area of the brain thought to promote compulsive use, according to researchers. […]

  • Medical gamma-ray camera is now palm-sized
    on May 23, 2017 at 4:42 pm

    Researchers invented a Compton camera of 580g which visualizes gamma rays of arbitrary energies, and succeeded in achieving a high-resolution, multicolor 3-D molecular image of a live mouse administered with three different radioactive tracers in just two hours. The results of this study imply possibilities for producing new tracers of wide energy range at reduced costs and enabling the simultaneous imaging of multiple tracers which provide multilateral information on disease in target organs. […]

  • New imaging technique aims to ensure surgeons completely remove cancer
    on May 17, 2017 at 10:40 pm

    A new technology generates cellular images detailed enough to distinguish cancerous from normal tissue. Researchers are working on speeding up the technology so it can be used during surgery, allowing surgeons to know if they have removed all the cancer while they still have time to take out more. […]

  • Cutting down on cancer surgeries
    on May 17, 2017 at 7:47 pm

    Engineers have combined light and sound in a microscopy technique that could allow surgeons to determine -- in the operating room -- whether a tumor has been completely removed from a cancer patient, reducing the need for follow-up surgeries. […]

  • Early MRI may lower costs for prostate cancer treatment
    on May 17, 2017 at 7:47 pm

    A diagnostic MRI followed by one of three MRI-guided biopsy strategies is a cost-effective method to detect prostate cancer, according to a new study. […]

  • New insights into the tumor metabolism
    on May 11, 2017 at 5:59 pm

    Tumors, inflammation and circulatory disorders locally disturb the body's acid-base balance. These changes in pH value could be used for example to verify the success of cancer treatments. Up to now, however, there has been no imaging method to render such changes visible in patients. Now a team has developed a pH sensor that renders pH values visible through magnetic resonance imaging (MRI) -- in a non-invasive, radiation-free manner. […]

  • Mapping reveals reactions differ in male and female brains during cardiovascular activity
    on May 10, 2017 at 7:07 pm

    A region of the brain that helps to manage body functions including stress, heart rate and blood pressure reacts differently between men and women when presented with certain stimuli, according to a new study. […]

  • Lessening radiation risk for children with congenital and acquired heart disease
    on May 9, 2017 at 4:19 pm

    Congenital heart disease is the most common birth defect, affecting an estimated one million children living in the U.S. Children with CAHD often have complex diseases and many require life-long medical care. As part of their care, they often require cardiac imaging procedures that use ionizing radiation. While these imaging procedures are critical for accurate diagnosis and intervention, ionizing radiation in high doses can be harmful. Newly released recommendations for pediatric radiation safety have now been released by experts. […]