Medical Devices

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

  • Bringing high res magnetic resonance imaging to nanometer scale
    on February 21, 2018 at 5:24 pm

    A new technique that brings magnetic resonance imaging to the nanometer scale with unprecedented resolution will open the door for major advances in understanding new materials, virus particles and proteins that cause diseases like Parkinson's and Alzheimer's. […]

  • Brain scans show why people get aggressive after a drink or two
    on February 12, 2018 at 3:31 pm

    Researchers have used magnetic resonance imaging (MRI) scans that measure blood flow in the brain to better understand why people often become aggressive and violent after drinking alcohol. After only two drinks, the researchers noted changes in the working of the prefrontal cortex of the brain, the part normally involved in tempering a person's levels of aggression. […]

  • NIR light may identify breast cancer patients who will benefit most from chemotherapy
    on February 12, 2018 at 1:44 pm

    A new optical imaging system uses red and near-infrared light to identify breast cancer patients who will respond to chemotherapy. The imaging system may be able to predict response to chemotherapy as early as two weeks after beginning treatment. Findings are from a first pilot study of the new imaging system -- a noninvasive method of measuring blood flow dynamics in response to a single breath hold. […]

  • Electro-mechano-optical NMR detection
    on February 1, 2018 at 3:46 pm

    Researchers develop an NMR system which converts radio-frequency signals into optical ones, promises higher sensitivity for MRIs. […]

  • Light-triggered nanoparticles show promise against metastatic cancer
    on January 29, 2018 at 7:57 pm

    A new anti-cancer strategy wields light as a precision weapon. Unlike traditional light therapy -- which is limited to the skin and areas accessible with an endoscope -- this technique can target and attack cancer cells that have spread deep inside the body. […]

  • Brain-scan guided emergency stroke treatment can save more lives
    on January 24, 2018 at 7:37 pm

    Advances in brain imaging can identify a greater number of stroke patients who can receive therapy later than previously believed, according to a new study. The results of the Endovascular Therapy Following Imaging Evaluation for the Ischemic Stroke (DEFUSE 3) trial demonstrated that physically removing brain clots up to 16 hours after symptom onset in selected patients led to improved outcomes compared to standard medical therapy. […]

  • Optical biopsy tool detects disease in seconds
    on January 24, 2018 at 7:15 pm

    A recent article reports how Resonance Raman spectroscopy, a tool previously used to provide molecular information in science, is now being used in medicine and biomedicine to provide an optical biopsy that offers more detailed, faster detection. […]

  • Biomechanical mapping method aids development of therapies for damaged heart tissue
    on January 23, 2018 at 4:25 pm

    Researchers have developed a new way to capture the detailed biomechanical properties of heart tissue. The high-resolution optical technique fills an important technology gap necessary to develop and test therapies that might eventually be used to heal heart damage after a heart attack. […]

  • 'Explosive evolution' of techniques to restore blood flow to the brain
    on January 19, 2018 at 7:12 pm

    Recent decades have seen an 'explosive evolution' of techniques to restore blood flow to areas of the brain endangered by stroke or clogged arteries, according to a new report. […]

  • New instrument lets doctors view the entire eye with unprecedented level of detail
    on January 18, 2018 at 7:27 pm

    Researchers have developed the first instrument that can provide a detailed image of the entire eye that can produce higher quality images than currently available. […]

  • Novel PET tracer clearly identifies and tracks bacterial infection in lungs
    on January 8, 2018 at 3:58 pm

    Researchers have demonstrated that a new radiotracer, 2-18F-fluorodeoxysorbitol (18F-FDS), can identify and track bacterial infection in lungs better than current imaging methods and is able to differentiate bacterial infection from inflammation. […]

  • Next-generation medical scanning
    on January 5, 2018 at 7:24 pm

    Researchers have developed a new way to magnetise molecules found naturally in the human body, paving the way for a new generation of low-cost magnetic resonance imaging (MRI) technology that would transform our ability to diagnose and treat diseases including cancer, diabetes and dementia. […]

  • Advanced MRI can detect placental perfusion abnormalities in pregnancies complicated by fetal CHD
    on January 4, 2018 at 9:08 pm

    In pregnancies complicated by fetal congenital heart disease, global placental perfusion was significantly decreased and regional variation of placental perfusion significantly increased as pregnancies progressed, findings that point to non-invasive imaging providing an early warning of placental dysfunction. […]

  • Milestone' for new noninvasive heart test medicare now covers FFR-CTcoronary artery test
    on January 4, 2018 at 5:42 pm

    On Jan. 1, Medicare began covering a new noninvasive test for heart disease called FFR-CT. "Medicare coverage is a major milestone," said Loyola Medicine cardiologist Mark Rabbat, MD. "Millions of Americans now can potentially benefit from this game-changing technology." […]

  • Total-body PET: Maximizing sensitivity for clinical research and patient care
    on January 3, 2018 at 4:14 pm

    The new total-body PET/CT scanner could revolutionize our understanding and treatment of disease through analysis of better imaging data from the whole body. Scientists have outlined the development and benefits of this innovative diagnostic tool and explained how maximizing PET sensitivity will advance clinical research and patient care. […]

  • State-of-the-art MRI technology bypasses need for biopsy
    on January 2, 2018 at 10:00 pm

    The most common type of tumor found in the kidney is generally quite small (less than 1.5 in). These tumors are usually found by accident when CAT scans are performed for other reasons and the serendipitous finding poses a problem for doctors. […]

  • Preterm infants have narrowed upper airways, which may explain higher obstructive sleep apnea risk
    on December 23, 2017 at 6:48 pm

    A multidisciplinary team used MRI to determine that the risk factors that lead to obstructive sleep apena are confined to the uppermost airway and do not appear to be explained by enlarged adenoids and tonsils. […]

  • Using MRI to understand why some women go into early labor
    on December 20, 2017 at 5:17 pm

    Scientists are using the latest imaging techniques usually used to map the brain to try and understand why some pregnant women miscarry or go into early labor. […]

  • Deadly heart rhythm halted by noninvasive radiation therapy
    on December 14, 2017 at 3:17 pm

    Radiation therapy often is used to treat cancer patients. Now, doctors have shown that radiation therapy -- aimed directly at the heart -- can be used to treat patients with a life-threatening heart rhythm. They treated five patients with irregular heart rhythms, called ventricular tachycardia, who had not responded to standard treatments. The therapy resulted in a dramatic reduction in the number of ventricular tachycardia episodes. […]

  • Presurgical imaging may predict whether epilepsy surgery will work
    on December 11, 2017 at 7:08 pm

    A statistical approach to combining presurgical PET scans and functional MRI of the brain may help predict which patients with drug-resistant epilepsy are most likely to benefit from surgery. […]

  • Molecular beacon signals low oxygen with ultrasound
    on December 8, 2017 at 4:35 pm

    Areas of hypoxia, or low oxygen in tissue, are hallmarks of fast-growing cancers and of blockages or narrowing in blood vessels, such as stroke or peripheral artery disease. Researchers have developed a way to find hypoxic spots noninvasively in real time. The researchers developed an oxygen-sensitive molecular beacon that emits ultrasound signals in response to light, a process called photoacoustic imaging. […]

  • Deep insight into the heart
    on December 8, 2017 at 2:55 pm

    A new article outlines how modern non-invasive examinations using state-of-the-art imaging technology can reduce the risk of not-detecting infections of the heart muscle possibly leading to chronic inflammations and sudden death. […]

  • New assay may help predict which pancreatic lesions may become cancerous
    on December 8, 2017 at 1:53 pm

    A new report describes a new simple molecular test to detect chromosomal abnormalities -- biomarkers known as telomere fusions -- in pancreatic tumor specimens and pancreatic cyst fluids. This assay may help predict the presence of high-grade or invasive pancreatic cancers requiring surgical intervention. […]

  • Contrast-enhanced digital mammography comparable to breast MRI after therapy or chemo
    on December 7, 2017 at 12:37 am

    Contrast-enhanced digital mammography is comparable to breast MRI in evaluating residual breast cancer after neoadjuvant endocrine therapy or chemotherapy, according to new results. […]

  • PET tracer gauges effectiveness of promising Alzheimer's treatment
    on December 6, 2017 at 5:24 pm

    Researchers report on the first large-scale longitudinal imaging study to evaluate BACE1 inhibition with micro-PET in mouse models of Alzheimer's disease. PET imaging has been established as an excellent identifier of the amyloid plaque and tau tangles that characterize Alzheimer's disease. Now it is proving to be an effective way to gauge treatment effectiveness. […]

  • PET identifies which prostate cancer patients can benefit from salvage radiation treatment
    on December 4, 2017 at 9:23 pm

    For prostate cancer patients who have rising levels of PSA (a cancer indicator) even after radical prostatectomy, early treatment makes a difference. In a study featured in the December issue of The Journal of Nuclear Medicine, Australian researchers demonstrate that PET scans can identify which of these prostate cancer patients would benefit from salvage radiation treatment (SRT). […]

  • Ultrasound imaging needle to transform heart surgery
    on December 1, 2017 at 2:10 pm

    Heart tissue can be imaged in real-time during keyhole procedures using a new optical ultrasound needle. The revolutionary technology has been successfully used for minimally invasive heart surgery in pigs, giving an unprecedented, high-resolution view of soft tissues up to 2.5 cm in front of the instrument, inside the body. […]

  • Neutrophil-inspired propulsion
    on November 30, 2017 at 6:38 pm

    Inspired by white blood cells rolling on endovascular walls before transmigrating to the disease site, scientists have succeeded in getting particles to move along the walls of microscopic, three-dimensional vessels. This method could be used in targeted cancer therapeutics. […]

  • Visible signals from brain and heart
    on November 30, 2017 at 4:23 pm

    Key processes in the body are controlled by the concentration of calcium in and around cells. Scientists have now developed the first sensor molecule that is able to visualize calcium in living animals with the help of a radiation-free imaging technique known as optoacoustics. The method does not require the cells to be genetically modified and involves no radiation exposure. […]

  • Complications at birth associated with lasting chemical changes in the brain
    on November 28, 2017 at 2:09 pm

    New research shows that adults born prematurely -- who also suffered small brain injuries around the time of birth -- have lower levels of dopamine in the brain. […]