Articles tagged with Medical Imaging
Scientists at the University of Manchester have developed a camera that takes powerful three-dimensional colour X-ray images, enabling rapid detection of contraband, corrosion, and cancer. The technology uses hyperspectral imaging to identify chemicals and compounds within large objects, reducing scanning time by minutes.
A study finds that most patients who have undergone imaging exams know little about radiologists, with only 53.5% aware they are physicians. Radiologists now see an opportunity to educate the public about their role in healthcare.
Scientists develop a device that can form and control sound bullets in water, with potential uses for underwater imaging and biomedical applications. The device, inspired by Newton's cradle, focuses high-amplitude pressure pulses into compact sound bullets that can be tightly focused on a target area.
A team of researchers created the most detailed, three-dimensional rendering of the pulmonary acinus, a complex region in the mammal lung. The model, derived from mice, can help scientists understand where and how lung diseases emerge and how drugs are delivered.
Engineers from the University of Illinois at Urbana-Champaign have created a new handheld scanner that enables primary care physicians to image various sites in 3-D, including bacterial colonies and retinas. The device uses optical coherence tomography (OCT) technology to produce real-time images.
Researchers created photoluminescent nanoparticles that shine clearly through over 3 centimeters of biological tissue. The particles, made with calcium-fluoride shells and thulium core, provide high-contrast imaging without adverse effects.
Near-infrared (NIR) spectral imaging has been shown to be highly predictive of flap outcome in breast reconstruction, detecting circulatory complications early on. This non-invasive method can provide real-time feedback to surgeons during surgery and post-operative period, improving patient outcomes.
The low-cost scanner can be manufactured for £30-40 and produces an output power that is 10-100 times lower than conventional hospital ultrasounds. It aims to provide basic antenatal imaging to women in developing countries where such tests are not available, potentially saving hundreds of thousands of lives.
Three projects have won awards from NIBIB and HHMI to enhance interdisciplinary training for graduate students, sharing successful strategies among institutions. The resources developed through the grants will be disseminated to the broader research community, impacting biomedical science advancement.
A team at NIST has developed a method to calibrate and optimize color-based imaging techniques for medical applications. This enhancement enables surgeons to detect specific cell types with improved accuracy. The NIST effort is part of a larger initiative to evaluate and validate optical medical imaging devices.
A University of Alberta team has successfully created technetium-99m in a cyclotron, producing high-quality images comparable to reactor-based isotopes. The breakthrough could provide a reliable alternative to the aging Chalk River facility's medical isotope supply.
A study found that ED patients undergoing CT of the abdomen and pelvis are clinically complex, with 93.8% classified as higher complexity. The study suggests that advanced imaging services in the ED setting serve valuable roles, such as facilitating patient triage and reducing hospital lengths of stay.
A decision support system translated into a high percentage of positive chest CT examinations, with 76% of patients showing a positive finding on their CT. The system's utility score helped referring physicians modify imaging requests, cancel exams, or order alternative tests.
A new study by American Roentgen Ray Society shows radiologists ranking themselves as less competent in patient imaging costs and patient safety compared to non-radiology physicians. The researchers aim to use this data for self-reflection to improve their knowledge and be ambassadors of change in healthcare reform.
The new exhibit focuses on proper patient management and latest imaging techniques for treating musculoskeletal ski/snowboard injuries. It emphasizes the importance of thorough history-taking to deliver best patient care for these types of injuries.
Researchers have developed a new technique to visualize fat distribution in lab mice using X-ray computed tomography (CT), allowing for non-invasive and longitudinal studies. This method provides detailed images of fat volumes within the mouse, enabling researchers to study adipose content at high levels.
Researchers discovered a curved, three-dimensional grid structure in the brains of humans and non-human primates, organized pathways are either perpendicular or parallel to each other, forming box-like structures. This finding has implications for understanding brain development, evolution, and function.
J. Oscar Barahona will receive the Distinguished Sonographer Award for his significant contributions to medical ultrasound. He has been a driving force in advancing the field, serving on various committees and boards within the American Institute of Ultrasound in Medicine.
Researchers at the University of Southampton are using 3D imaging to create personalized maps of how inhaled drugs work within the lungs. This unique visualization will help optimize drug administration and inform future treatments for diseases like asthma and cystic fibrosis.
The study found that far fewer images are needed to map a protein's structure than previously believed, allowing for faster and more efficient imaging. The team also created a three-dimensional model of the protein using just 265 images.
Andreas Römpp and Sabine Guenther received the ABC Best Paper Award 2011 for their pioneering work on mass spectrometry imaging with high spatial resolution. Their method provided highly specific molecular information and excellent correlation with histological features.
Researchers engineered bacteria to provide accurate 3D images of tumors in mice, revealing bacterial location within the tumor. This breakthrough enables targeted cancer treatment and diagnosis.
A study found that uninsured patients receiving imaging services in a hospital setting received the same quantity and value as insured patients. Despite this, uninsured individuals were less likely to undergo interventional procedures but more likely to receive computed tomography studies.
The new spectral imager will enable scientists to expand research in medical imaging, detecting explosives, and studying metamaterials. It will also be used to analyze materials, detect pathogens, and inspect pharmaceutical products.
A team of experts used CT imaging and computer-aided machinery to create a reproduction of a 1704 Stradivarius violin. The process involved scanning the original instrument and converting images into stereolithographic files, which were then carved and assembled by hand.
Professor Boppart discusses the importance of federal funds for research in medical imaging, enabling diagnosis and improving healthcare. He highlights the potential of optical coherence tomography to reduce re-operations and develop compact imaging devices for primary care physicians.
The University of Houston will receive funding to purchase and install an advanced imaging system for in-depth monitoring of tumor growth and cancer progression. This will enable researchers to study the interactions of tumors in local tissue environments, leading to a better understanding of cancer cell progression.
A study found that narrow band imaging is a less time-consuming and equally effective alternative to chromoendoscopy for detecting dysplasia in IBD patients, but with a higher miss rate. The researchers concluded that chromoendoscopy remains the recommended technique for detecting dysplasia.
A new study cautions that thoracic imaging protocols must carefully balance radiation doses to the breast and lungs. The study found that changing protocols can reduce breast radiation dose by over 50% and lower lung radiation dose. Researchers emphasize the need for caution when planning CT protocols.
Hospital executives should recognize the value added by on-site radiology groups, which include patient safety, image quality, interpretation accuracy, service to patients and physicians, cost containment, and business building. Fragmentation of radiology departments can lead to lost values and chaos.
Using full color synchrotron light has increased the clarity of biological samples and sped up imaging by a 60-fold increase, opening avenues for medical research, drug development, and advanced materials engineering. This breakthrough enables more precise nanoscale analysis.
Researchers have developed super-mini vehicles that can carry drugs and imaging agents into the body, revolutionizing medicine by improving drug solubility and bio-distribution. The devices use self-assembling nano-sized structures to cross membrane barriers and enable combination therapies.
A study implemented strict protocols for administering gadolinium-based contrast agents, eliminating new cases of nephrogenic systemic fibrosis. The protocol has been effective in preventing the condition in patients with decreased kidney function.
A literature review finds lab tests and imaging have limited value in diagnosing JIA due to false positives; a full physical exam and patient history are crucial for accurate diagnosis
Researchers at Arizona State University have received a $1 million grant to develop a next-generation 3D imaging microscope called Cell-CT. This technology enables scientists to observe and assess the functional pathways of disease, such as cancer, by performing CT imaging on individual living cells.
Scientists used synchrotron X-ray imaging to study an ancient fossilized snake, revealing details of its internal architecture. The results suggest that snakes lost their legs due to slower growth rates or a shorter evolutionary period.
Rhode Island Hospital physician James A. Arrighi examines the challenges of implementing quality improvement efforts among physicians, highlighting the need for multifaceted and interactive approaches to educational initiatives. He recommends techniques such as personalized feedback and sequential longitudinal efforts to maximize their...
A study by Radiological Society of North America found CT scans to be the most accurate imaging modality in detecting cocaine containers in drug mules, with a sensitivity rate of 100 percent. X-rays had a lower detection rate, while low-dose linear slit digital radiography had an 85 percent sensitivity rate.
Researchers have developed a new imaging technology that combines photoacoustic tomography with gold nanobeacons, allowing for unprecedented detail in visualizing blood vessel formation. This breakthrough has the potential to help healthcare providers diagnose diseases earlier and more accurately.
A study of 38 patients who underwent primary or revision rhinoplasty found that computer imaging was moderately accurate in predicting the final result. Patients valued its inclusion in the preoperative consultation, citing improved communication with surgeons and better understanding of the surgery. The accuracy of the images varied b...
Physicist Lei Ren received the Basic Science Abstract Award for his research on reducing radiation therapy imaging dose by optimizing cone beam computed tomography (CT) usage. The new technique aims to lower imaging doses by eightfold, improving treatment outcomes for lung cancer patients affected by breathing motion during treatment.
Scientists at UC Irvine have designed a new device using spatial frequency domain imaging to image cancerous lesions and monitor the effectiveness of photodynamic therapy (PDT) for skin cancer. The device, which uses an array of LEDs, can provide detailed images of the biochemistry of tissue, enabling targeted treatment.
Researchers explored new techniques for 3D imaging and analysis of rocks, fossils, and other materials. These advances have improved our understanding of geological processes and the potential zones of weakness in volcanoes.
Overutilization of medical imaging services exposes patients to unnecessary radiation and adds to healthcare costs. Radiologists recommend a national collaborative effort to develop evidence-based appropriateness criteria and implement practice guidelines to reduce overutilization.
Researchers will create novel tools for evaluating social interactions and behaviors to diagnose or treat autism. The project aims to develop a new discipline of computational behavioral science, transforming the study of human behavior with technologies like computer vision and machine learning.
Researchers have developed revolutionary ultrasonic transducers that can generate and detect ultrasound at scales a thousand times smaller than conventional ultrasonics. These tiny devices can be used to perform intracellular ultrasonics, produce high-frequency ultrasounds smaller than visible light wavelengths.
Scientists have developed a substance to enhance visibility of skin cancer cells during scans, potentially leading to earlier detection and improved survival rates for patients with melanoma. The new technique uses photoacoustic tomography and a bioconjugated gold nanoparticle agent that targets skin cancer cells.
Dr. George Papanicolaou receives the William Benter Prize for his work on Monte Carlo simulation and its applications in imaging analysis, tackling challenges in cluttered environments. The award supports his efforts to develop effective algorithms for detecting and imaging in varying degrees of clutter.
Agnieszka Bialek wins Royal Photographic Society's Selwyn Award for her work on multi-spectral imaging, which reveals details unseen by the eye. Her IRIS technology captures eight replicated images of an object at different wavelengths, enabling characterisation of materials with variations in colour or appearance.
Researchers developed a novel noninvasive tool using fluorescent microspheres to detect early inflammation in the eyes. This breakthrough allows for early detection of diseases such as eye disease, potentially reversing damage before it occurs. The tool may also improve therapy evaluation and extend to other areas of the body.
Researchers have developed fluorescent compounds that can light up tumors as they begin to form, signaling their transition to aggressive cancers. These compounds, called fluorocoxibs, could be used for early tumor detection, monitoring cancer progression, and defining tumor margins during surgery.
Scientists have successfully applied optical coherence tomography (OCT) to analyze the layers of easel paintings, revealing evidence of forged signatures and alterations. This non-invasive technique overcomes previous limitations, offering a new way for art conservators to detect changes in artworks.
Researchers at Caltech develop a nonlinear acoustic lens producing highly focused sound bullets for advanced medical imaging, nondestructive evaluation, and potentially even cancer treatment. The device exploits particle contacts to create compact acoustic pulses with high amplitude and low distortion.
Researchers developed an experimental imaging technique using gold-silver nanocages to detect hollow nanocages and solid nanoparticles in the bloodstream, enabling clear images without background fluorescence. This method shows improved performance with higher contrast and brightness than conventional fluorescent dyes.
Researchers use tissue engineering to create healthy organs and neuronal circuits, enabling live imaging of transplanted tissues and neural activity. The protocols provide methods for monitoring tissue perfusion, cell survival, and interaction/integration, allowing for improved culturing and implantation techniques.
Researchers developed a novel computational model to identify genetic interactions using high-dimensional morphological data from single-cell images. The method was demonstrated in fruit flies, where it accurately inferred Rho-signaling network interactions more precisely than previous approaches.
Scientists use optical coherence tomography to analyze artworks, uncovering forged signatures and altered inscriptions. This technique enables detection of subtle changes in easel paintings without damaging the artwork.
Researchers discovered a noninvasive contrast-enhanced ultrasound imaging technique that can aid in the detection of early-stage ovarian cancer when combined with proteomic blood analyses. This method has shown high accuracy and the potential to save lives by detecting disease at an early stage.
A large proportion of patients undergoing abdominal/pelvic CT scans receive unindicated and unnecessary additional image acquisition, leading to excess radiation exposure. The mean excess radiation dose per patient from unnecessary scans was found to be 11.3 millisieverts.
The Image Sharing Demonstration at RSNA 2009 showcases methods for sharing images, reports, and medical history to enhance patient care in radiology. The project aims to enable 'meaningful use' of electronic health records and improve interoperability between medical institutions.