A system for automatic plane identification of ultrasound images, particularly dynamic scans, is described. The system is based on the use of a ceiling mounted light source, an externally synchronizable TV camera and a specially developed TV mixer. The patient with actual position of the ultrasound transducer is constantly displayed in the upper right corner of the monitor on which the image appears.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1177/028418518102200610 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Stress landscape of folding brain serves as a map for axonal pathfinding.
Nat Commun
January 2025
Department of Mechanical Engineering, State University of New York at Binghamton, Binghamton, NY, USA.
Understanding the mechanics linking cortical folding and brain connectivity is crucial for both healthy and abnormal brain development. Despite the importance of this relationship, existing models fail to explain how growing axon bundles navigate the stress field within a folding brain or how this bidirectional and dynamic interaction shapes the resulting surface morphologies and connectivity patterns. Here, we propose the concept of "axon reorientation" and formulate a mechanical model to uncover the dynamic multiscale mechanics of the linkages between cortical folding and connectivity development.
View Article and Find Full Text PDFSociety for Cardiovascular Magnetic Resonance recommendations toward environmentally sustainable cardiovascular magnetic resonance.
J Cardiovasc Magn Reson
January 2025
Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA; Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois, USA. Electronic address:
Delivery of health care, including medical imaging, generates substantial global greenhouse gas emissions. The cardiovascular magnetic resonance (CMR) community has an opportunity to decrease our carbon footprint, mitigate the effects of the climate crisis, and develop resiliency to current and future impacts of climate change. The goal of this document is to review and recommend actions and strategies to allow for CMR operation with improved sustainability, including efficient CMR protocols and CMR imaging workflow strategies for reducing greenhouse gas emissions, energy, and waste, and to decrease reliance on finite resources, including helium and waterbody contamination by gadolinium-based contrast agents.
View Article and Find Full Text PDF[Current Consensus and Challenges of Fluorescence Imaging Technology in the Surgery of Spinal Intramedullary Tumors].
No Shinkei Geka
January 2025
Department of Neurosurgery, Osaka Medical and Pharmaceutical University.
Surgery for spinal intramedullary tumors remains a major challenge for neurosurgeons. Successful surgery requires experience, skill, and intraoperative imaging support. Fluorescence imaging technology has become a valuable support in neurosurgical procedures of not only the brain but also the spinal cord.
View Article and Find Full Text PDFRamp Protocol for Non-linear Cerebrovascular Reactivity with Transcranial Doppler Ultrasound.
J Neurosci Methods
January 2025
IBME, Department of Engineering Science, University of Oxford, Oxford UK.
Background: Cerebrovascular reactivity (CVR) reflects the ability of cerebral blood vessels to adjust their diameter in response to vasoactive stimuli, which is crucial for maintaining brain health. Traditional CVR assessments commonly use a two-point measurement, assuming a linear relationship between cerebral blood flow (CBF) and arterial CO. However, this approach fails to capture non-linear characteristics, particularly the plateaus at extreme CO levels.
View Article and Find Full Text PDFEngineering biocompatible carbon dots nano-enzymes hydrogel for efficient antioxidative and anti-inflammatory treatment of dry eye disease.
J Control Release
January 2025
Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong, China; Zhuhai Hospital of Integrated Traditional Chinese & Western Medicine, Zhuhai, Guangdong, China. Electronic address:
Dry eye disease (DED) is a complex and multifactorial ocular surface disease. Reactive oxygen species (ROS) are of pivotal importance in the inflammatory processes and biological dysfunction associated with DED. In this study, an injectable hydrogel, designated as OHACDgel, was created by combining oxidized HA-containing aldehyde groups (OHA) and gelation (gel) via dynamic covalent linkages of the hydrazine bonds, is employed as the carrier, while polyethylene imine-functionalized carbon dots (PEI-CD) can form dynamic chemical bonds with the hydrogel, thus prolonging the retention time of the ocular.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!