background: chitosan nanoparticles have become of great interest for nanomedicine, biomedical engineering and development of new therapeutic drug release systems with improved bioavailability, increased specificity and sensitivity, and reduced pharmacological toxicity. the aim of the present study is to synthesis and optimization of chitosan nanoparticles for industrial and biomedical applicati...

Non ECG-Triggered Self-Navigated 3D Radial Whole-Heart Cine MRI with High Spatial Resolution for Simultaneous MultiPhase Coronary and Functional Imaging. Simone Coppo, Davide Piccini, Gabriele Bonanno, Jerome Chaptinel, Gabriella Vincenti, and Matthias Stuber Center for Biomedical Imaging (CIBM), Lausanne, Switzerland, Radiology, University Hospital (CHUV) and University of Lausanne (UNIL), Lau...

vein d) tissue; and e) the concentration profiles and fitted result. Fig.1: Schematic diagram of perfusion model, orange dots are Gd-EOB-DTPA In-vivo evaluation of hepatic function using dynamic Gd-EOB-DTPA enhanced MRI with a dual-input one output two-compartment pharmacokinetics model Jia Ning, Sheng Xie, Lei Wang, Hua Guo, Xihai Zhao, Chun Yuan, and Huijun Chen Center for Biomedical Imaging ...

Biomedical researchers are actively interested in building anatomically explicit computational models of the lung to further their understanding of pathologies, for example asthma, which affect the human body. Current methods have relied on a generic lung airway model which may not accurately reflect the physiology of a given subject. Patient specific models are needed to overcome this limitati...

Image segmentation is one of the vital steps in Image processing. It is a challenging task in segmenting MRI(Magnetic Resonance Imaging) images because these images have no linear features. But MRI images provide high quality when compared to any other imaging techniques, so it is best suited for clinical diagnosis, biomedical research, etc. This paper presents a novel approach for segmenting M...

(*) Corresponding Author e-mail: [email protected] ABSTRACT: Magnetic nanoparticles are the good choice for using in MRI as the contrast agent. Iron oxide particles such as magnetite (Fe3O4) or its oxidized form maghemite (γ-Fe2O3) are the most commonly employed in biomedical applications. In this study, we synthesized and optimized the preparation of chitosan manganese-ferrite nanoparticles...

The single greatest impediment to the use of nuclear magnetic resonance spectroscopy (MRS) and magnetic resonance imaging (MRI) in vivo is its limited sensitivity . Hyperpolarization promises enhanced magnetic resonance, with signal amplification up to 200,000‐fold greater than we have today, this technology will detect attomoles to nanomoles of isotopically labeled specific disease markers in ...

A brain tumor is a kind of abnormal development caused by unregularized cell reproduction and it increasing day-by-day. The Magnetic Resonance Imaging (MRI) tools are the most often used diagnostic tool for detection. However, ample amount information contained in MRI makes detection analysis process tedious time consuming. ability to accurately identify exact size proper location tough task ra...

PURPOSE Analytical phantoms have closed form Fourier transform expressions and are used to simulate MRI acquisitions. Existing three-dimensional (3D) analytical phantoms are unable to accurately model shapes of biomedical interest. The goal of this study was to demonstrate that polyhedral analytical phantoms have closed form Fourier transform expressions and can accurately represent 3D biomedic...

Introduction The hyperpolarization (HP) technique can increase the signal sensitivity of nuclear magnetic resonance (NMR) ten thousand times for He and Xe, and thus it enables instantaneous imaging of cavity gases [1, 2]. This technology has been expected to be a practical technology for the development of medical equipment that enables instantaneous evaluation of lung functions, and the early ...