Articles tagged with Optical Coherence Tomography
A tiny optical imaging probe designed for optical coherence tomography (OCT) imaging inside blood vessels in the brain has been developed. The probe can acquire full 360-degree images by using a tiny piezoelectric actuator to rotate an optical lens, eliminating rotational distortion.
A team of University of Oklahoma researchers has developed a noninvasive imaging approach using polarization-sensitive optical coherence tomography (PS-OCT) to evaluate donor livers more comprehensively. This technology could help transplant teams make faster, more informed decisions about liver suitability for transplantation.
Researchers developed an AI system called OCTCube-M that can accurately identify eight different retinal diseases, including age-related macular degeneration. The technology also predicts the progression of severe forms of this condition and can infer health risks beyond the eye.
Researchers developed a new method for extracting spectral information from OCT images and combining it with AI to identify lipid-rich plaques. The approach shows strong classification performance and can highlight suspicious regions throughout the image.
Researchers developed a miniature side-viewing fiber probe that breaks the trade-off between image sharpness and depth. The probe achieves extended imaging depth while preserving high lateral resolution, enabling clinicians to see deeper without sacrificing detail.
Researchers developed a non-invasive OCT scanner to measure environmental stress in plants. The device reveals internal structural changes caused by ozone exposure, enabling early detection of deficiencies or stress-induced changes.
A new dual-imaging system simultaneously maps retinal structure and capillary oxygen levels in live mice, allowing researchers to study vision-threatening diseases like glaucoma and diabetic retinopathy. This non-invasive approach offers a powerful tool for elucidating local capillary values and tracking changes in retinal oxygenation.
A recent study from Radboud University Medical Center shows that AI can rapidly assess coronary arteries for vulnerable spots, allowing for more accurate prediction of recurrent heart attacks. This breakthrough could lead to tailored medication or preventive stents, improving patient outcomes.
Scientists developed a new 4D optical coherence tomography technique that measures airway wall elasticity in under 42 seconds, enabling detailed assessment of respiratory tissue mechanics. This faster approach may help diagnose and monitor upper airway disorders, assess injury, and guide treatment decisions.
Researchers develop compact, noninvasive imaging system combining LC-OCT and Raman microspectroscopy to examine skin cancer structures and chemical composition. The AI model achieves high classification accuracy for basal cell carcinoma and other types, offering new insights into cancer development and behavior.
A new study explores catheter-based polarization-sensitive optical coherence tomography (PS-OCT) as a tool for improving the precision of electrode placement in deep brain stimulation. PS-OCT provides high-resolution intraoperative visualization of deep brain structures, distinguishing between white and gray matter more clearly than MRI.
Researchers adapted optical coherence tomography (OCT) to visualize tiny structures in the human inner ear, correlating fluid levels with a patient's degree of hearing loss. The findings may help clinicians diagnose and treat hearing loss more quickly and effectively.
A new mouse study uses advanced OCT imaging to reveal the fallopian tube's pumping mechanism in transporting preimplantation embryos towards the uterus. The study sheds light on the biological mechanisms underlying reproductive challenges like infertility and ectopic pregnancy.
A recent study by the University of Zurich examined the connection between retinal nerve connections and schizophrenia. The researchers found that individuals with a higher genetic risk for schizophrenia tend to have thinner retinas, which can be detected using non-invasive retinal measurements.
A new technique using optical coherence tomography (OCT) probe aims to improve kidney biopsy imaging, reducing failed surgeries and improving patient outcomes. The technology could also help identify tumor types and reduce cases of renal hemorrhage.
Researchers developed a software tool called clipping spline to visualize complex structures in 3D images. The tool provides unprecedented capabilities to analyze 4D OCT images of embryonic mouse heart development, revealing unseen dynamics and processes.
A recent study has explored a new imaging approach that uses swept-source optical coherence tomography to visualize the upper airway with high precision. By integrating computational fluid dynamics, researchers were able to identify areas of turbulence and pinpoint obstruction sites, leading to more accurate diagnoses and treatment pla...
Researchers developed a novel noninvasive choroidal angiography method using deep learning, enabling layer-wise visualization and evaluation of choroidal vessels. The approach employs an advanced segmentation model to handle varying quality of OCT B-scans, offering a promising tool for clinical applications.
Researchers at NYU Langone Health will use visible-light OCT technology to detect biomarkers of neurodegenerative disease, including Alzheimer’s and Parkinson’s diseases. The study aims to identify retinal layers and monitor the effects of therapies.
Scientists have created a method for imaging common plant infections without killing the plant, allowing for real-time tracking of disease development. This technique provides insights into how plants respond to pathogens, aiding in the cultivation of crops with broader resistance to various diseases.
A new imaging device that combines optical coherence tomography (OCT) with traditional otoscopy improves diagnostic capabilities for hearing clinics. The integrated device provides detailed views of the eardrum and middle ear, enabling more accurate diagnoses and treatment.
The Multifunctional Ablative Gastrointestinal Imaging Capsule (MAGIC) combines OCT technology with an endoscope camera and ablation laser for superior esophageal imaging. It provides unmatched accuracy in detecting early lesions, enabling potential ablative treatment of esophageal abnormalities.
The multicenter study found that the BuMA Supreme stent showed faster re-endothelization with no 'late catch-up' phenomenon compared to the XIENCE stent. This results in decreased dual antiplatelet therapy duration, potentially benefiting patients with coronary artery disease and high bleeding risk.
Researchers used OCTA to visualize retinal blood vessel changes in migraine patients during and between attacks. Blood flow decreases were found, with asymmetrical flow correlated to headache pain side.
Researchers discovered a non-invasive eye exam that can detect early signs of cognitive decline and cerebral small vessel disease, a major contributor to vascular dementia. The study found connections between altered retinal blood flow and changes in brain structure associated with the condition.
Researchers developed a new imaging technique using Bessel beam two-photon microscopy to detect stalling in brain capillaries, which can indicate acute neurological issues. The approach generates clear images of all capillaries every two seconds, providing better temporal resolution and enabling the detection of short stalling events.
A new imaging technique, multifocal acoustic radiation force-based reverberant optical coherence elastography (RevOCE), has been developed to measure the elasticity of multiple eye components simultaneously. This approach offers high resolution measurements of the stiffness of eye structures and could revolutionize how we study ocular ...
Researchers have confirmed that measuring retinal layer thickness can significantly improve MS diagnosis and predict progression. The study found a strong correlation between retinal damage and brain damage, paving the way for earlier treatment and better patient outcomes.
Researchers have developed a custom OCT setup that incorporates a vertical cavity surface emitting laser (VCSEL) diode, which could increase access to OCT imaging and help catch eye problems early. The system performed well in imaging the eye of a healthy volunteer and showed potential for use in biometric eye scanner systems.
Researchers have created a technique that enables visualization of the retina and choroid with high resolution at distinct depths, revealing new insights into eye structure. The technology, called STOC-T, makes it possible to image all primary layers of the choroid for the first time.
Researchers have developed shortwave-infrared and thermal imaging techniques to accurately diagnose active dental caries. SWIR-based approach shows superior results in detecting lesions, while thermal imaging proves less effective.
A team of researchers is developing a new method to evaluate the viability of donor kidneys using optical coherence tomography (OCT) scanning technology. OCT scans provide a more complete view of the organ's overall functional capacity, allowing for better matching with transplant patients. The goal is to increase kidney availability a...
A MedUni Vienna study has identified retinal layer thinning as a reliable prognostic marker for multiple sclerosis severity. The analysis revealed that thinner retinas are associated with increased risk of permanent disability and more aggressive treatment is recommended.
Customized fibers have been engineered to generate Bessel beams, opening up new applications in imaging and communications. The fibers use a technique called two-photon lithography to fabricate special beam-shaping elements, enabling the creation of compact Bessel beam generators.
Researchers at Washington University in St. Louis developed a new imaging tool that uses optical coherence tomography (OCT) and machine learning to detect and classify cancerous tissue samples with high accuracy. The technique, which was tested on patients in a trial, showed a 93% diagnostic accuracy rate.
Researchers have developed a new method to generate flexible needle-shaped laser beams, extending the depth-of-focus for optical coherence tomography (OCT) imaging. This allows for improved lateral resolution, signal-to-noise ratio, contrast, and image quality over a long depth range.
Researchers developed an AI method to automatically detect plaque erosion in heart arteries using OCT images. The new technique uses neural networks and post-processing algorithms to predict regions of possible plaque erosion and refine the initial prediction based on clinically interpretable features.
The new technique, 3D optical coherence refraction tomography (3D OCRT), produces highly detailed images revealing features difficult to observe with traditional OCT. It has the potential for biomedical research and eventually more accurate medical diagnostic imaging.
A new multimodal eye scanner combining optical coherence tomography (OCT) and Raman spectroscopy enables the detection of molecular information in the internal structure of the eye. This technology aims to detect neurodegenerative diseases, such as Alzheimer's and Parkinson's, at an early stage, improving treatment options.
Developers are integrating optical coherence tomography (OCT) machines into sensor packages to create fast and accurate LiDAR systems. These advancements enable robots and cars to see the world in a more natural and safe manner, improving interaction with humans.
The integration of optical sensing into orthopedic surgical devices has the potential to increase accuracy and improve outcomes in musculoskeletal repair. Researchers explore various types of optical sensing, including spectroscopy and imaging, to address unmet clinical needs in orthopedic surgery.
Duke researchers developed a method to increase the depth of view of optical coherence tomography (OCT), allowing for clear images from beyond a millimeter beneath the skin's surface. The new technique, known as dual-axis OCT, tilts the light source and detector to collect more scattered light from deep tissues.
Researchers developed a novel PSOCT method, polarization state tracing (PST), to image depth-resolved collagen organization within living tissues without damaging the sample. This allows for accurate clinical diagnosis and image-guided surgery, targeting precision medicine.
Optical coherence tomography (OCT) has significant growth potential across various medical applications, including cardiology and dermatology. Miniaturized OCT systems are expected to revolutionize healthcare with compact, mobile, and cost-effective devices.
Researchers developed a method to apply deep learning to polarization-sensitive optical coherence tomography, enhancing cancer diagnosis. The technique enables OCT systems to detect abnormalities on a deeper level, differentiating microstructural features such as collagen fiber orientations.
Researchers developed a deep learning-based method to reconstruct 3D images of tissue samples using significantly less spectral data than normally required. The new approach successfully removes spatial artifacts, enabling faster imaging without sacrificing resolution or signal-to-noise.
Researchers developed a new imaging modality for in-development retinal organoids using D-FFOCT, which offers high spatial and temporal resolutions. The technique allows for the creation of highly contrasted images of almost transparent samples without labels, enabling long-term study of sample development.
A novel study uses optical coherence tomography to predict hemodynamic relevance of coronary lesions, reducing need for pressure wire and potentially saving patient risk and healthcare expenses. OCT parameters showed significant correlation with fractional flow reserve values.
The special section on OCT published by SPIE Journal of Biomedical Optics highlights its continued relevance in medicine and biology. New opportunities emerge in areas like gastroenterology, dermatology, and oncology.
Researchers used OCT imaging to examine retinal layers in infants with congenital Zika syndrome. The study found severe neurosensory retinal thinning and visual impairment in newborns, highlighting the need for further studies on visual function correlation.
The DOCTORS trial found that optical coherence tomography (OCT) provides useful additional information beyond standard angiography, leading to better functional outcomes and more frequent antiplatelet use. OCT also revealed stent underexpansion, incomplete lesion coverage, and edge dissection, resulting in improved procedure strategies.
A new 'smart' surgical tool combines advanced technology with human hand precision to minimize surgical accidents. The device uses an optical fiber sensor to compensate for hand tremors, allowing for accurate and precise movements during delicate procedures.
Researchers at Indiana University have developed a method to measure microscopic changes in cone cells using optical coherence tomography (OCT) phase differences. They found the outer segments of cone cells grow at a rate of about 150 nanometers per hour, which is significantly faster than human hair growth.
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.
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 have found that optical coherence tomography (OCT) is the best tool available to detect vulnerable plaque, a possible cause of sudden cardiac death. OCT provides superior contrast and resolution in imaging the components of plaque, allowing for better understanding of coronary artery disease progression.
Scientists at the University of Illinois have developed microspheres that enhance contrast in optical coherence tomography, allowing for improved imaging of individual cells and early tumor detection. The microspheres can be targeted to specific tumors, enabling enhanced OCT imaging for surgical guidance.