Results 91 to 100 of about 146,863 (270)

VLSI Implementation of TDC Architectures Used in PET Imaging Systems [PDF]

in Int. Marmara Sci. Congess (IMASCON 2019 Spring), 2019, pp. 1997-2003, 2020
Positron emission tomography (PET) is a medical imaging method based on the measurement of concentrations of positron-emitting radionuclides in a living body. In the PET imaging system, glucose is labeled with a positron-emitting radionuclide and injected intravenously.
arxiv  

Ovarian Function Restoration with Biomimetic Scaffold Incorporating Angiogenic Molecules and Antioxidant in Chemotherapy‐Induced Perimenopausal Model

Advanced Healthcare Materials, EarlyView.
This study developed a biomimetic scaffold incorporating PDRN and melatonin to restore ovarian function in chemotherapy‐induced premature ovarian insufficiency, enhancing cell survival, folliculogenesis, and hormone normalization, while improving fertility rates and offspring in a mouse model, offering a promising strategy for ovarian function ...
Da‐Seul Kim, Dong Seok Jeong, So‐Yeon Park, Ji‐Won Jung, Jeoung Eun Lee, Jun‐Kyu Lee, Seung‐Woon Baek, Dong Ryul Lee, Dong Keun Han   +8 more
wiley   +1 more source

A Deep Learning Approach to Automate High-Resolution Blood Vessel Reconstruction on Computerized Tomography Images With or Without the Use of Contrast Agent [PDF]

arXiv, 2020
Existing methods to reconstruct vascular structures from a computed tomography (CT) angiogram rely on injection of intravenous contrast to enhance the radio-density within the vessel lumen. However, pathological changes can be present in the blood lumen, vessel wall or a combination of both that prevent accurate reconstruction. In the example of aortic
arxiv  

Ischemic Myocardium Targeting Peptide‐Guided Nanobubbles for Multimodal Imaging and Treatment of Coronary Microvascular Dysfunction

Advanced Healthcare Materials, EarlyView.
Nanobubbles functionalized with indocyanine green and ischemic myocardium‐targeting peptide effectively target cardiomyocytes and enable the multimodal (fluorescence, ultrasonic, and photoacoustic) imaging of ischemic myocardium in mice with coronary microvascular dysfunction (CMD).
Bo Yu, Ziwei Pang, Jing Zhao, Jingyi Xue, Hsuan Lo, Tiancheng Gu, Ping Zhang, Jiawei Tian, Guo‐Qing Du   +8 more
wiley   +1 more source

High drug payload curcumin nanosuspensions stabilized by mPEG-DSPE and SPC: in vitro and in vivo evaluation

Drug Delivery, 2017
Context: Curcumin (CUR) is a promising drug candidate based on its broad bioactivities and good antitumor effect, but the application of CUR is potentially restricted because of its poor solubility and bioavailability.
Jingyi Hong, Yingying Liu, Yao Xiao, Xiaofeng Yang, Wenjing Su, Mingzhu Zhang, Yonghong Liao, Haixue Kuang, Xiangtao Wang   +8 more
doaj   +1 more source

Threadlike bundle of tubules running inside blood vessels: New anatomical structure [PDF]

arXiv, 2002
According to current anatomy, the arteries and veins do not have threadlike structures running inside the vessels. Despite such prevailing knowledge here we report on observation of a novel structure inside the blood vessels of rats and rabbits, which is a semi-transparent elastic bundle of tubules whose diameters are of 10$\mu$m order.
arxiv  

A Deep learning Approach to Generate Contrast-Enhanced Computerised Tomography Angiography without the Use of Intravenous Contrast Agents [PDF]

arXiv, 2020
Contrast-enhanced computed tomography angiograms (CTAs) are widely used in cardiovascular imaging to obtain a non-invasive view of arterial structures. However, contrast agents are associated with complications at the injection site as well as renal toxicity leading to contrast-induced nephropathy (CIN) and renal failure.
arxiv  

Gasotransmitters in Modern Medicine: Promises and Challenges in the Use of Porous Crystalline Carriers

Advanced Healthcare Materials, EarlyView.
This perspective provides an overview of the growing interest in utilizing various gasotransmitters—small gaseous signaling molecules namely nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S)—for several therapeutic applications, with emphasis on the potential use of porous materials as carriers to provide safe and controlled local ...
Rosana V. Pinto, Moisés L. Pinto, Christian Serre   +2 more
wiley   +1 more source

Recent Applications of Mesoporous Silica Nanoparticles in Gene Therapy

Advanced Healthcare Materials, EarlyView.
The review summarizes the synthesis of mesoporous silica nanoparticles (MSNs) with modifiable surface properties, functionalization strategies, mechanism of therapeutic payload release, and current applications in gene therapy, focusing on their capabilities in the targeted delivery of therapeutic nucleic acids, CRISPR‐Cas systems, and other genetic ...
Tamanna Binte Huq, Punnya Anil Kumar Jeeja, Sudip Kumar Dam, Sabya Sachi Das, Juan L. Vivero‐Escoto   +4 more
wiley   +1 more source

Towards Picogram Detection of Superparamagnetic Iron-Oxide Particles Using a Gradiometric Receive Coil [PDF]

arXiv, 2017
Superparamagnetic iron-oxide nanoparticles can be used in a variety of medical applications like vascular or targeted imaging. Magnetic particle imaging (MPI) is a promising tomographic imaging technique that allows visualizing the 3D nanoparticle distribution concentration in a non-invasive manner.
arxiv