Articles tagged with Medical Imaging
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 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 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 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.
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.
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...
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.
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.
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.
A new calibration technique helps plastic surgeons use computer imaging software to analyze and balance facial features before and after surgery. The study found that patients who underwent combined rhinoplasty and chin correction showed improvements in facial proportions, with increased distances between key landmarks.
Researchers at CU-Boulder have developed a new technique to generate laser-like X-ray beams, which could improve medical imaging resolution by a thousand times. The technique uses a powerful laser to pluck an electron from an atom and then slam it back into the same atom, generating a weak but directed beam of X-rays.
The new CTX system will enable doctors and scientists to see inside living humans and animals, tracking 3-D skeletal movements with precision. This technology has applications for basic and applied research, including biomechanics, orthopedic surgeries, and injury treatments.
A NIST-developed image enhancement technique, APEX, successfully sharpened details on distant galaxies in Hubble images. The method overcame limitations of traditional deblurring techniques by leveraging mathematical simplifications.
Researchers found milk to be an effective alternative to the costly oral contrast agent VoLumen in gastrointestinal imaging exams. Milk was shown to produce similar bowel distension and enhancement without causing more abdominal discomfort than VoLumen, making it a viable option for patients.
A McGill University study found no difference in time for men and women to reach peak arousal, contrary to previous assumptions. The use of thermal imaging technology allows for minimally invasive measurement of sexual arousal rates.
The article describes mathematical techniques used to assist cranio-maxillofacial surgeons in predicting surgical outcomes. The techniques involve modeling and solving partial differential equations to create a virtual lab for testing operative strategies.
Scientists have found evidence of geysers on Saturn's icy moon Enceladus that suggest near-surface liquid water reservoirs are erupting to form the geysers. The Cassini images reveal a change in the moon's shape and geologic activity over billions of years, indicating a possible source of heat for the geysers.
Researchers capture the structure of a virus poised to inject its genetic material into a host cell for the first time, providing unprecedented detail. The images show a long coil of DNA dangling inside the viral shell, waiting to be ejected via a protein channel just inside the shell exterior.
The project aims to investigate high carrier frequencies of mid-infrared light for efficient communication and applications such as light-based radar devices, medical imaging, and synthesizing electronic tones. Researchers will design, build, and test thumbnail-sized chips capable of encoding data at unprecedented rates.
Recent images from NASA's Cassini spacecraft show jets of fine, icy particles emanating from Saturn's moon Enceladus' south polar region. The discovery provides unambiguous visual evidence that the moon is geologically active and has a fountain-like source of material.
Recent images from NASA's Cassini spacecraft reveal spectacular evidence of an active moon, Enceladus, with jets of fine, icy particles streaming from its south polar region. The discovery confirms the moon is geologically active and provides insight into its internal heating and possible energy sources.
T-rays use terahertz (THz) region of the electromagnetic spectrum to sense and image objects, providing spectroscopic information about composition. Advances enable nanoscale detection and long-range imaging up to 100 meters, with potential applications in national security, genetics, and protein folding research.
Researchers at Purdue University have developed a new type of medical imaging technique that uses gold nanorods to detect tiny structures in the bloodstream. The nanorods yield images nearly 60 times brighter than conventional fluorescent dyes, making them ideal for early detection of cancer.
Recent Cassini findings suggest that Enceladus' south pole is the source of water vapor and fine icy particles, defying previous assumptions. The discovery sheds light on the moon's internal heat and its connection to the E ring, offering a new perspective on Saturn's complex system.
Researchers at Northwestern University have developed uncooled infrared photon detectors using type-II superlattices, enabling high-speed operation and handheld portability. The new technology has potential in medical applications, such as detecting inflammation or cancerous tissue.
Researchers used XRF imaging to analyze ancient stone inscriptions, detecting minute amounts of iron, zinc, and lead. The technique restored thousands of stones, including the law code of Draco, providing valuable information for historians and archaeologists.
Scientists have successfully delivered genes to the lungs of CF mice using DNA nanoparticles, enabling real-time imaging and assessment of gene expression. This breakthrough technology holds promise for treating serious lung diseases like cystic fibrosis with novel nucleic acid-based therapies.
Researchers found that low-dose MDCT can provide similar diagnostic image quality to standard-dose CT scans while reducing radiation doses by up to 10 times. The study suggests low-dose MDCT is a better option for evaluating sinus disease in children due to its improved accuracy and reduced need for sedation.
Researchers have developed a small-animal imager for dual modality imaging, enabling cancer researchers to gain physiological information on animal models of human disease. The device will be integrated with an optical-imaging system and used in research projects on a daily basis.
Researchers at JLab and College of W&M studied radiation blockers to enhance nuclear imaging accuracy. They found that higher doses of potassium iodide blocked radioactive iodine uptake better in mice. The study uses a unique medical imaging system and precise detectors, providing insights into the body's metabolism and thyroid function.
Researchers used nuclear imaging to study how mice absorb radioactive iodine, finding that a dose five times higher than the FDA-recommended dosage is needed for effective protection. The team discovered that using this higher dose can improve image quality and reduce false-positive readings.
Drezek has been recognized by the Beckman Foundation for her research on novel optical molecular imaging technologies for early cancer detection. Her award includes a three-year $264,000 grant to develop and refine this technology.
The UK NHS telemedicine initiative has failed to deliver promised benefits, with integration issues and inadequate patient consultation hindering its success. New portable telecare systems for monitoring chronic illnesses are being developed but face similar challenges.
The researchers created nano-sized probes using emissive polymersomes that can optically image tissue structures deep below the skin, with potential to target multiple cancer cell-surface markers simultaneously. The probes use near-infrared light to produce a bright signal detectable through imaging systems.
A statistical model was developed to automatically determine heart contours from X-ray images, reducing time and variability in observer interpretations. This technology has been incorporated into a commercial software application used by physicians and surgeons to improve diagnosis and treatment of heart conditions.
A new esophageal capsule has been found to be as effective as traditional endoscopy in detecting Barrett's esophagus, a pre-cancerous condition. The study showed a high sensitivity of 97% and specificity of 100% in identifying esophageal abnormalities.
A perfect lens could improve electronic circuitry, fiberoptic communications, and medical imaging, but mathematical analysis shows it is not feasible. Researchers used rigorous math to demonstrate that a perfect lens would struggle with the concept of negative refraction.