Articles tagged with Molecular Imaging
A new PET radiotracer effectively visualizes Nectin-4, a biomarker found in triple-negative breast cancer (TNBC), with the potential to improve clinical outcomes. Researchers developed a series of Nectin-4-targeted radiotracers and evaluated their efficacy in detecting TNBC.
Researchers used X-ray light to analyze the structure of 2-thiouracil, a substance with medically relevant properties. The study found that UV radiation causes the molecule to bend, resulting in the protrusion of the sulfur atom and making it reactive.
Researchers at POSTECH developed a super-photostable organic dye, PF555, to track proteins in cells over extended periods. This breakthrough enables observation of endocytosis and protein interactions, revealing EGFR's active navigation in its environment.
A new universal photocage modification strategy based on thioketal enables real-time live cell subcellular imaging. The thioketal-based probe SiR-EDT exhibits improved dark stability and can be specifically activated by UV-visible light.
A new PET tracer has been developed to visualize intact nerve connections in the spinal cord, which may indicate a better chance of recovery. This breakthrough has the potential to help diagnose injuries more precisely, monitor recovery, and evaluate the effectiveness of new therapies.
A new hybrid microscope allows scientists to image the full 3D orientation and position of an ensemble of molecules, such as labeled proteins inside cells. This can reveal the real biology hidden from just a position change of a molecule alone.
A panel of experts identified key biomarkers for PND through a comprehensive literature review of 194 clinical studies. The study highlights the potential for these biomarkers to predict and diagnose PND, improving postoperative cognitive health in elderly patients.
The FORESIGHT consortium aims to improve drug development through advanced nuclear and optical imaging techniques, AI expertise, and infrastructure. This will enable more efficient tracking of drug behavior in the body and better development of imaging biomarkers.
The University of Texas MD Anderson Cancer Center received nearly $23 million in CPRIT funding to advance cancer research, translational science, and clinical trials. The funding will support the recruitment of a first-time tenure-track faculty member and enhance the understanding of cancer biology.
A team led by Prof. Woo Young Jang developed a novel fluorescent probe to visualize cancer stem cells in complex samples, offering a new direction for cancer diagnostic imaging. This technology has significant implications for diagnosing and monitoring sarcomas.
Next-generation tau radiotracers demonstrate higher binding to Alzheimer's disease brain tissue and greater selectivity than existing imaging agents. This could lead to improved diagnosis and staging of the disease, as well as better outcomes in clinical trials.
A global team of scientists has made a groundbreaking discovery of a new skeletal tissue called lipocartilage, composed of fat-filled cells that provide super-stable internal support. This unique tissue has immense potential for treating facial defects, birth injuries, and cartilage-related conditions.
The project leverages super-radiance to enhance the brightness and emission rate of fluorophores, enabling high-throughput imaging and tracking of molecular processes. This could lead to breakthroughs in fields like cell biology, materials science, and nanotechnology.
Researchers from Tokyo Metropolitan University developed a new dye that strongly absorbs second near-IR radiation, transforming it to heat. This breakthrough enables clearer imaging and better delivery of heat for therapies in deep tissue medicine.
The Society of Nuclear Medicine and Molecular Imaging has issued a new procedure standard/practice guideline for the use of fibroblast activation protein (FAP) PET, outlining indications, imaging procedures, and quality control/quality assurance procedures. The guideline aims to deliver diagnostic efficacy and study quality for patients.
A new PET approach has detected early signs of tissue remodeling in patients with pulmonary arterial hypertension, providing an early marker for disease progression. This could pave the way for more personalized management and timely interventions to improve patient prognosis.
Researchers developed a supramolecular probe with enhanced phosphorescence properties for biological imaging and sensing. The probe demonstrated outstanding stability, biocompatibility, and specificity in viscosity response, enabling real-time visualization of critical physiological processes in cells and in vivo biosensing.
A new study found that nearly half of high-risk prostate cancer patients have metastatic disease when evaluated with advanced PSMA-PET imaging, suggesting traditional imaging may underestimate cancer spread. This challenge the interpretation of previous studies like EMBARK trial, and support the inclusion of PSMA-PET for patient select...
A novel radiotracer has accurately identified a crucial cancer biomarker, Trop2, found in various types of cancer. The radiotracer, <sup>18</sup> F-AlF-RESCA-T4, enables precise visualization of Trop2 expression and can differentiate lung inflammation from cancer.
Researchers developed a deep learning model that classifies pancreatic cancer into molecular subtypes using histopathology images, achieving high accuracy and rapid turnaround time. The AI tool has the potential to improve patient outcomes by enabling timely and tailored treatment strategies.
A new technique for detecting long wave infrared photons of different wavelengths has been developed by UCF researchers. This method, based on a nanopatterned graphene, offers dynamic spectral tunability and ultrafast response times, surpassing existing cooled and uncooled detectors.
A new noninvasive imaging method developed by MIT researchers can penetrate deeper into living tissue than previous techniques, producing richer and more detailed images. This breakthrough enhances biological research capabilities, enabling scientists to study immune responses and develop new medicines with greater accuracy.
A team led by Eric Stach at Penn Engineering has developed a new approach to visualize and understand molecular catalysts on semiconductor surfaces. By combining atomic-resolution imaging with machine learning analysis, they created detailed maps of the distribution and behavior of these microscopic structures.
A new MRI-based imaging technique can rapidly assess ovarian cancer subtypes and their response to treatment, allowing for personalized treatment planning. The technique, called hyperpolarised carbon-13 imaging, distinguishes between two different subtypes of ovarian cancer and reveals their sensitivities to treatment.
Max Delbrück Center researchers have uncovered new features of the molecular architecture of synaptic vesicles using cryo-electron tomography. The study reveals a persistent association between V-ATPase and synaptophysin, suggesting an important function in neurotransmission.
Researchers at Rice University developed soTILT3D, an innovative imaging platform that enables fast and precise 3D imaging of multiple cellular structures while controlling the extracellular environment. The platform improves upon conventional fluorescence microscopy by reducing background fluorescence and increasing imaging speed.
Scientists have captured 3D snapshots of individual RNA nanoparticles in motion, showcasing the dynamic and intricate folding process. This breakthrough uses advanced electron microscopy to study RNA's flexibility, enabling new insights into its structure and potential applications in molecular medicine.
Researchers found that individuals with depression who engage in reflexive emotion regulation experience increased suicidal thoughts during daily stressful events. In contrast, adaptive responses to stress were observed when participants used reappraisal strategy.
A new PACT system offers rapid imaging of living organisms, enabling the tracking of whole-body dynamics and disease progression. The system achieves spatial resolution of approximately 212 micrometers and enables the visualization of oxygen saturation across complex biological systems.
Researchers at the University of Texas at Dallas are using a 7-Tesla MRI machine to study brain structure, function, and cognition across time. The team aims to identify biomarkers for healthy or pathological aging, shedding light on individual differences in brain aging.
Research reveals the structural features of beta cell primary cilia, including microtubule organization and interactions with neighboring cells. The findings suggest that primary cilia play a crucial role in signal transmission and networking of beta cells with other islet cells, potentially linking to type 2 diabetes pathogenesis.
A recent study published in Cell reveals that nearly one in six disease-causing mutations leads to proteins mislocalizing within the cell. The research team developed a high-throughput imaging platform to assess protein location and found that breakdowns in protein stability are a major driver of misplaced proteins.
Researchers have developed a 'mini-protein' that targets cancer cells expressing Nectin-4, allowing for direct delivery of radiation to tumours. The treatment shows promise in targeting multiple types of cancers and has the potential to be safe for repeated administrations.
Researchers at ETH Zurich have discovered a new predatory bacterium, Aureispira, that uses grappling hooks and cannons to capture prey. The bacterium's molecular structures resemble those of pirate tools, allowing it to entangle and kill its victims quickly.
Researchers at MIT have developed a new expansion technique to image nanoscale structures inside cells using conventional light microscopes. The method, which expands tissue 20-fold in a single step, allows for high-resolution imaging of organelles and protein clusters.
A new non-invasive imaging technique has been shown to accurately detect clear-cell renal cell carcinoma, the most common form of kidney cancer. The technique uses a monoclonal antibody drug that targets the protein CA9, highly expressed in up to 95% of clear cell kidney cancers.
Researchers comprehensively reviewed cerebellar involvement in Parkinson's disease, highlighting the pathophysiological role of the cerebellum in motor and non-motor symptoms. Studies showed abnormal α-synuclein aggregation, neurodegeneration, and altered functional connectivity between the cerebellum and other brain regions.
A team led by Weiying Lin created a molecular probe that selectively detects serotonin, a key player in depression. The study suggests that the ability of neurons to release serotonin is more critical than serotonin levels themselves.
Researchers have developed novel photoacoustic probes for neuroscience applications, enabling visualization of neurons in specific brain regions. The probes use a combination of protein and synthetic dye to bind to chemicals and emit sound waves that can be detected by imaging equipment.
A novel PET/CT technique has been developed to detect neuroblastoma in children with high sensitivity and short scan time, eliminating the need for sedation or anesthesia. The new technique uses a novel tracer and next-generation scanner, resulting in improved diagnostic accuracy and reduced radiation exposure.
A new fluorescent imaging probe can non-invasively measure loss of smell, potentially eliminating biopsies used to diagnose anosmia. The tool targets the olfactory nerve, showing promise for diagnosing and treating smell disorders in patients.
Researchers have identified a metal deficiency in SOD1 protein associated with motor neurone disease using native ambient mass spectrometry imaging. This breakthrough could lead to new insights and treatments for the disease, which affects around 5,000 people in the UK.
A new hybrid contrast agent has been developed to combine the benefits of MRI and PET imaging techniques, offering improved accuracy and opening new diagnostic applications. The agent has shown potential in detecting kidney problems and other conditions, paving the way for personalized diagnostics and precise imaging.
Researchers at the University of Göttingen developed a new approach to analyze cell properties, using random fluctuating movement of microscopic particles. The method, called mean back relaxation (MBR), can distinguish between active processes and temperature-dependent processes.
A newly developed granzyme B PET imaging method can non-invasively detect IBD and provide a real-time picture of active inflammation. This technology could guide personalized patient management strategies and monitor treatment efficacy.
A team from City University of Hong Kong has designed a compact hybrid transmission and scanning electron microscope that can operate at room temperature, offering high-resolution imaging capabilities without cryogenic temperatures. The new system reduces radiation damage to samples and provides improved image contrast using pulse elec...
Researchers at Rice University have developed ultrasmall gas-filled protein nanostructures that can penetrate tissue and reach immune cells, opening up new possibilities for ultrasound imaging and drug delivery. The breakthrough could revolutionize treatment for cancers and infectious diseases.
Researchers explore the feasibility of deep learning models in segmenting lesions on PET/CT images to improve salvage radiation therapy planning for prostate cancer. The study demonstrates promising potential to reduce inter- and intra-observer variations, leading to more accurate treatment outcomes.
Researchers at St. Jude Children's Research Hospital have developed a way to mitigate long-lived triplet dark states in smFRET, significantly increasing the method's resolution for molecular imaging. This advancement enables direct visualization of biomolecules' functions and dynamics, crucial for understanding biological processes and...
The 2024 SNMMI Annual Meeting showcased the latest advancements in theranostics, artificial intelligence, and other fields, with over 130 continuing education sessions and 1,000 posters. The meeting also featured unique opportunities for attendee engagement and connection.
A new ultra-low dose imaging method with long axial field-of-view PET scanners can generate quantitative PET images without the need for accompanying CT scans, reducing radiation exposure to patients. The technique reduces the total effective dose by approximately 50 times lower than the standard PET dose.
A comparative study between FAPI and 18F-FDG PET/CT shows that FAPI PET/CT is more accurate in staging newly diagnosed breast cancer patients, with 19.8% being restaged due to its high sensitivity. This could lead to optimized management plans and improved patient outcomes.
Researchers developed a novel radiotracer that generates high-quality images of cardiac amyloidosis, a condition referred to as the Alzheimer's disease of the heart. The technetium-99m labeled variant of the pan-amyloid reactive peptide p5+14 showed significant uptake in patients with amyloid cardiomyopathy.
SNMMI has elected Heather Jacene, MD, as Vice President-Elect, aiming to strengthen the organization through active listening and collaborations. Jacene's research focuses on cancer therapy response monitoring using novel tracers, and she aims to break down barriers in radiopharmaceutical availability.
Dr. Michael J. Evans has been named the 2024 recipient of the prestigious Sam Gambhir Trailblazer Award, recognizing his exceptional contributions to nuclear medicine and molecular imaging. He is honored for his groundbreaking work in biomarker discovery and radiopharmaceutical development.
Dr. David M. Goldenberg, MD, has received the 2024 Benedict Cassen Prize for his pioneering work in monoclonal antibodies and immunotherapy, leading to significant advances in nuclear medicine science. His contributions have resulted in personalized therapy for cancer patients with a new generation of agents.
Jean-Luc C. Urbain, MD, PhD, FASNC, has been named president-elect of SNMMI, focusing on radiopharmaceutical theranostics integration into clinics to benefit patients. He aims to increase the society's visibility, membership, and financial support through outreach to underrepresented professionals.
Cathy Sue Cutler, Ph.D., FSNMMI, was elected SNMMI President to continue supporting the Facilitating Innovative Nuclear Diagnostics (FIND) Act. She aims to improve workforce development, create training opportunities, and educate the public on nuclear medicine.
The NeuroEXPLORER PET scanner offers exceptional brain PET images with ultra-high sensitivity and resolution, showcasing focal uptake in specific brain nuclei. This technology has the potential to spur advances in treating conditions like Alzheimer's disease, Parkinson's disease, and mental illnesses.
A novel AI approach can accurately detect six different types of cancer on whole-body PET/CT scans, automatically quantifying tumor burden. The tool provides a framework for identifying robust predictive biomarkers and enabling early detection and treatment of cancer.