Articles tagged with Medical Imaging
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 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.
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.
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.
Researchers are developing a new imaging technique to detect tissue damage in breast cancer patients undergoing radiation therapy. Preliminary results show that the technique can identify changes in skin tissue days before severe reactions occur, potentially allowing for preventative treatment and improved patient outcomes.
Researchers at Berkeley Lab developed the first acoustic hyperlens, allowing for 8-fold magnification of sound-based imaging technologies. The device resolves details smaller than one sixth the length of the waves themselves, enabling new applications in medical ultrasound and underwater sonar.
A new study uses bioluminescence imaging to detect eye tumors in vivo, enabling early treatment options that don't require surgery. The technology offers higher sensitivity and accuracy than traditional biopsy analysis, promising improved outcomes for patients.
A wireless network of radio transmitters can track people moving behind solid walls, according to a new study. The system uses radio tomographic imaging (RTI) and has the potential to help law enforcement, rescue operations, and retail marketing.
Aydogan Ozcan's lab has developed a prototype cell phone diagnostic unit using Lensless Ultra-wide-field Cell Monitoring Array platform (LUCAS) to detect diseases like HIV and malaria. LUCAS can identify and count microparticles virtually instantaneously, revolutionizing mobile health care.
The University of Alabama at Birmingham has been awarded $431,200 to acquire a highly-specialized X-ray Photoelectron Spectroscopy System with micro-scale-imaging capabilities. This will enable researchers to visualize surface chemical composition and bonding capabilities of newly designed materials.
Researchers at Purdue University are developing laser-based technologies to create longer-lasting medical implants and arterial stents. The new techniques use layer-by-layer deposition of metal and ceramic materials, enabling strong bonds and complex shapes.
Researchers at Virginia Tech are developing a next-generation nano-CT imaging system to visualize fine features within larger objects and reduce radiation dose. The project aims to provide a versatile nano-imaging tool for various applications, including medical and industrial uses.
Research published in the Journal of Thoracic Oncology found that narrow-band imaging bronchoscopy increases lung cancer detection specificity and can serve as an alternative method. The study confirms its efficiency by comparing it with white light and auto-fluorescence imaging.
A new chemical imaging technique, ATR-FTIR imaging, may improve current methods of assessing lesions in the arteries. The technique revealed precise composition and size of lesions and levels of elastin, collagen, and cholesteryl ester.
Researchers found that abnormal findings on ultrasound can predict future stroke and cardiovascular ischemic events in TIA patients. The study supports the routine use of transcranial Doppler ultrasonography in addition to extracranial Doppler ultrasonography for risk assessment.
Scientists develop a novel nanoparticle structure that combines the functions of quantum dots and gold nanoparticles, creating a multipurpose tool for medical imaging and therapy. The breakthrough could enable more efficient delivery of drugs, heat therapy, and optical imaging.
Purdue University researchers have developed magnetically responsive gold nanostars that can be used to enhance contrast in biomedical imaging. The nanostars can be made to twinkle at precise frequencies, allowing them to stand out from noisy backgrounds and improving the clarity of images.
Researchers at Helmholtz Munich developed a new technology that allows for high-resolution imaging of tissue depth using sound waves. The technique, called multispectral opto-acoustic tomography, uses flashes of laser light to create small shock waves, which are then analyzed to generate detailed images of internal organs and tissues.
Researchers at the University of Illinois have successfully focused ultrasound waves through a flat metamaterial lens to create an acoustic 'superlens'. This innovation could improve high-resolution ultrasound imaging, non-destructive structural testing of buildings and bridges, and novel underwater stealth technology.
A study of 5,434 patients found that 7.1% of abnormal test results were not informed to patients or documented, with practices using paper and electronic records having the highest failure rates. Practices with better testing processes had lower failure rates and more satisfied physicians.
Researchers at UCLA developed a novel camera that captures images at 6 million frames per second, overcoming conventional camera limitations. The camera's optical image amplification enables continuous real-time imaging of rapid phenomena in physics, chemistry, and biology.
Researchers have observed a synchronized quantum dance in electrons' spin within a new material, enabling the transformation of computing and electronics. The discovery has significant implications for data storage, memory, and computation power.
Researchers developed an imaging technique that can reveal the atomic structure of nanocrystals with a resolution of less than one angstrom. The technique combines images and diffraction patterns taken with the same electron microscope, allowing for accurate determination of atomic structures.
Researchers have developed a new technique called liquid STEM that enables the imaging of individual molecules in biological cells, with improved resolution and speed compared to existing methods. This innovation has potential applications in energy science and the development of molecular probes.
Researchers demonstrate a blind man's ability to navigate an obstacle course without visual awareness, utilizing alternative brain routes. The study reveals the importance of these hidden pathways in everyday navigation and function.
Researchers found that narrow-band imaging (NBI) was not more accurate than white light colonoscopy in differentiating colorectal polyps during real-time colonoscopy. However, NBI accuracy improved significantly after the endoscopists gained experience with the new diagnostic tool.
Researchers developed a novel technique called Early Photon Tomography (EPT) to image lung tumors in living mice. EPT combines early arriving photons with tomographic principles, resulting in sharper and more accurate images compared to conventional methods.
CSIRO's Biotech Imaging team has created software to objectively test hair removal products' effectiveness. The technology uses images captured by a small scanner and algorithms to detect hair length and number, providing insights into growth and removal.
Neuroscientists at Arizona State University developed pulsed ultrasound techniques to remotely stimulate brain circuit activity, offering insights into noninvasive neurostimulation of brain circuits. The findings provide a new tool for modulating neural circuit activity, potentially treating post-traumatic stress disorders, traumatic b...
A new NIST technique uses an optical microscope to quickly analyze nanoscale dimensions with high sensitivity. The 'Through-focus Scanning Optical Microscope' (TSOM) method has potential applications in nanomanufacturing, semiconductor process control, and biotechnology.
Researchers at Georgia Tech developed a low-cost, high-resolution imaging system that can be attached to a helicopter to create detailed pictures of devastated areas. The system enables accurate population estimates and demographic analysis, helping aid organizations plan for health and humanitarian services.
Two studies presented at the American College of Gastroenterology's Annual Scientific Meeting highlight new technologies that improve the detection of colorectal polyps and flat lesions. The Retroscope device was found to significantly increase polyp detection, while narrow band imaging improved detection of flat or depressed lesions.
Four Stanford researchers Mark Schnitzer, Kang Shen, Seung K. Kim, and Julie Theriot have been awarded the prestigious title of HHMI investigators for their groundbreaking work in biomedical science. They will now have the freedom to tackle ambitious and risky research projects without restriction.
A new study suggests that color Doppler ultrasound is the preferred imaging modality for diagnosing suspected acute appendicitis in adults, with a 97% specificity rate and 74% sensitivity rate. The test's advantages include lack of radiation exposure and lower cost compared to CT scans.
The SIAM Journal on Imaging Sciences (SIIMS) focuses on conceptually new ideas in imaging science, combining mathematics and applications. The journal aims to shape the future of this exciting area by reporting fundamental advances.
Researchers at Michigan Medicine created a device that measures metabolic stress, detecting eye disease before symptoms appear. The instrument provides accurate results in detecting vision loss and characterizing disease progression.
Optimal band imaging improves depression-type early gastric cancer diagnosis by clearly identifying contrasting demarcation lines between cancerous and noncancerous areas. This technology enhances capillary pattern and pit patterns in endoscopic images, leading to improved detection rates.
Researchers at the University of Michigan have developed a new terahertz device that can reveal hidden artworks beneath layers of plaster or paint in centuries-old buildings. The device uses pulses of terahertz radiation to detect subtle changes in material, allowing for non-destructive imaging of artworks.
Researchers developed a novel method to produce dark-field x-ray images using nanostructured gratings, enabling diagnosis of osteoporosis, breast cancer, and Alzheimer's disease. This technology can be adapted to existing medical equipment, improving image clarity and sensitivity.
Scientists at Brookhaven National Laboratory develop a method to correlate microscopic imaging techniques, leading to better understanding and diagnosis of diseases. The technology enables the study of organic and inorganic components simultaneously, improving disease treatment.
Researchers at Dartmouth College have developed three new electromagnetic imaging techniques that can effectively distinguish between healthy breast tissue and abnormal tissue. The study, which involved 150 women, found that the new methods offered a high contrast and increased accuracy in detecting breast cancer compared to convention...
Researchers at Northwestern University have developed a quantum dot infrared photodetector that operates at room temperature with improved performance. The device enables thermal imaging at higher temperatures than previous records, opening up new possibilities for applications in medical and biological imaging, environmental monitorin...
A recent study found that MR imaging can predict prostate cancer recurrence in patients with extracapsular extension. The study, which analyzed 74 men with biopsy-proven prostate cancer, identified features on imaging that indicated a higher risk of metastasis.
Researchers developed a combined imaging method using three microscopic techniques to study the molecular mechanisms of multiple sclerosis. The technique enables the analysis of living tissue, revealing details about astroglial filaments and myelin sheath degradation, which could lead to earlier detection and new treatments.