نتایج جستجو برای: animal imaging

تعداد نتایج: 654685  

2017
Allison L. McIntosh Shane Gormley Leonardo Tozzi Thomas Frodl Andrew Harkin

Magnetic resonance imaging (MRI) is a valuable translational tool that can be used to investigate alterations in brain structure and function in both patients and animal models of disease. Regional changes in brain structure, functional connectivity, and metabolite concentrations have been reported in depressed patients, giving insight into the networks and brain regions involved, however precl...

Journal: :Abanico agroforestal 2021

The Lidia bull honrs are the most important anatomical part of animal, since it gives its offensive character and at same time purity integrity. Today, in many farms, horn is protected during last year breeding with a fiberglass cover. This paper aims to study internal structure fighting bull's horn, analyzing possible influence sheath on it. For this, horns have been collected from 55 bulls (4...

Journal: :ALTEX 2009
Ina Hagelschuer Peter Hauff Anne Strube Sanna-Maria Käkönen Georges von Degenfeld

In vivo luminescent imaging technology was introduced in experimental life science research several years ago and has rapidly gained wide acceptance. By making use of this technology substantially more information can be gained from animal experiments than was previously possible. The concept of the 3Rs describes the aim to Refine, Reduce and Replace animal models in research. The goal of the p...

2010
M. S. Ramirez Y. Chen S. Y. Lai J. A. Bankson

Introduction The reduction of MRI acquisition time by parallel imaging (PI) with phased array coils has standardized the inclusion of multichannel receivers in modern clinical systems. Dedicated small-animal research systems have also provided an increasing number of receiver channels in recent years. For small-animal MRI, the use of multichannel receivers permits not only PI-accelerated acquis...

Journal: :Medical physics 2013
Daniel H Larsson Ulf Lundström Ulrica K Westermark Marie Arsenian Henriksson Anna Burvall Hans M Hertz

PURPOSE Small-animal studies require images with high spatial resolution and high contrast due to the small scale of the structures. X-ray imaging systems for small animals are often limited by the microfocus source. Here, the authors investigate the applicability of liquid-metal-jet x-ray sources for such high-resolution small-animal imaging, both in tomography based on absorption and in soft-...

Introduction:The optimal imaging time of a radionuclide scintigraphy is the time at which the organ of interest has the maximum uptake of the injected radionuclide. This study was performed to investigate the maximum uptake time of 99mTc-DMSA in rat renal scan. Methods: Renal scintigraphy was performed with 3 mCi of 99mTc-DMSA. Planar ima...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید بهشتی - دانشکده پزشکی 1380

هدف اصلی در این مطالعه بررسی علائم و خصوصیات نکروز ایسکمیک سرفمور در روشهای رادیولوژیک و تعیین اهمیت و نفش آن در تشخیص این بیماری می باشد . نتایج بدست آمده حاکی از آن است که در رادیوگرافی ساده در مراحل اولیه بیماری تعییرات رادیوگرافیک قابل توجهی وجود ندارد و این تغییرات معمولا در مراحل پیشرفته تری از بیماری ظاهر می شود. نتایج حاصله با آنجه در گزارشهای قبلی و آنچه در کتب ماخذ وجود دارد هماهنگی د...

2015
Arnoldo Santos Leticia Fernández-Friera María Villalba Beatriz López-Melgar Samuel España Jesús Mateo Ruben A. Mota Jesús Jiménez-Borreguero Jesús Ruiz-Cabello

Cardiovascular imaging has become an indispensable tool for patient diagnosis and follow up. Probably the wide clinical applications of imaging are due to the possibility of a detailed and high quality description and quantification of cardiovascular system structure and function. Also phenomena that involve complex physiological mechanisms and biochemical pathways, such as inflammation and isc...

Journal: :journal of medical signals and sensors 0
parisa rangraz hamid behnam naser shakhssalim jahan tavakkoli

non-invasive ultrasound surgeries such as high intensity focused ultrasound have been developed to treat tumors or to stop bleeding. in this technique, incorporation of a suitable imaging modality to monitor and control the treatments is essential so several imaging methods such as x-ray, magnetic resonance imaging and ultrasound imaging have been proposed to monitor the induced thermal lesions...

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