نتایج جستجو برای: biomedical mri

تعداد نتایج: 165212  

2017
Ashima Anand Harpreet Kaur H. D. Cheng Y. H. Chen B. N. Saha N. Ray J. Jiang Y. Wu M. Huang W. Yang W. F. Chen Ayse Demirhan Mustafa Toru

Segmentation of brain tumor is an example of medical image segmentation that has grown as an emerging area of research in magnetic resonance imaging(MRI). In biomedical imaging, accurate detection of tumor is utmost important for proper clinical practice and treatment. Several techniques have been proposed for brain tumor segmentation, but there is no perfect algorithm proposed yet to enhance t...

2016
H.F. Li F.Y. Zhou L. Li Y.F. Zheng

In the present study, novel MRI compatible zirconium-ruthenium alloys with ultralow magnetic susceptibility were developed for biomedical and therapeutic devices under MRI diagnostics environments. The results demonstrated that alloying with ruthenium into pure zirconium would significantly increase the strength and hardness properties. The corrosion resistance of zirconium-ruthenium alloys inc...

Journal: :Journal of nanoscience and nanotechnology 2013
Kang Sik Choi Bo Keuk Bang Pan Kee Bae Yong-Rok Kim Chang Hae Kim

Magnetic nanoparticles and fluorescent quantum dots (QDs) can make many effective applications in biomedical system. Here, we demonstrated one way of synthetic method and its surface modification to use for biomedical applications. Fe3O4 nanoparticles are well known as magnetic materials and its magnetic property can be used in magnetic resonance imaging (MRI), cell detection. QDs as a fluoresc...

2016
Babak Nami Armin Ghasemi-Dizgah Akbar Vaseghi

Tissue engineering utilizes porous scaffolds as template to guide the new tissue growth. Clinical application of scaffolding biomaterials is hindered by implant-associated infection and impaired in vivo visibility of construct in biomedical imaging modalities. We recently demonstrated the use of a bioengineered type I collagen patch to repair damaged myocardium. By incorporating superparamagnet...

Journal: :The Lancet 2017
Hashim U Ahmed Ahmed El-Shater Bosaily Louise C Brown Rhian Gabe Richard Kaplan Mahesh K Parmar Yolanda Collaco-Moraes Katie Ward Richard G Hindley Alex Freeman Alex P Kirkham Robert Oldroyd Chris Parker Mark Emberton

BACKGROUND Men with high serum prostate specific antigen usually undergo transrectal ultrasound-guided prostate biopsy (TRUS-biopsy). TRUS-biopsy can cause side-effects including bleeding, pain, and infection. Multi-parametric magnetic resonance imaging (MP-MRI) used as a triage test might allow men to avoid unnecessary TRUS-biopsy and improve diagnostic accuracy. METHODS We did this multicen...

Journal: :Biomaterials 2009
Jason M Criscione Bonaire L Le Eric Stern Matthew Brennan Christoph Rahner Xenophon Papademetris Tarek M Fahmy

Dendrimers are nanoscale macromolecules with well-defined branching chemical structures. Control over the architecture and function of these structures has enabled many advances in materials science and biomedical applications. Though dendrimers are directly synthesized by iteration of simple repetitive steps, generation of the larger, more complex structures required for many biomedical applic...

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2023

<p><span>Brain magnetic resonance imaging (MRI) data is a hot topic in the domains of biomedical engineering and machine learning. Without locating anomalies, such as tumors edema, radiologists other medical experts cannot effectively recommend or administer therapy for patients. Having three different techniques (T1 weighted, T2 T3 weighted), MRI can produce detailed multimodal sca...

Journal: :Materials 2021

The focus of this review is on the physical and magnetic properties that are related to efficiency monometallic nanoparticles used in biomedical applications, such as resonance imaging (MRI) or nanoparticle hyperthermia, how model these by theoretical methods, where discussion based example cobalt nanoparticles. Different simulation systems (cluster, extended slab, models) critically appraised ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده دامپزشکی 1388

استئوآرتریت (oa) بیان کننده اختلالات پاتولوژیک استحاله ای در برگیرنده مفصل و ساختارهای آن می باشد. تشخیص oa سالها به دلیل طبیعت خاموش و پیشرونده بیماری موضوع بحث بوده است. مطالعه حاضر جهت ایجاد oa تجربی در مفصل زانوی خرگوش، و سپس مطالعه روند تغییرات رادیوگرافی، mri و هیستوپاتولوژی در شرایط یکسان طراحی گردید تا هریک از روشهای تشخیصی در ارتباط با سایر روشها و همچنین در قیاس با روش هیستوپاتولوژی ب...

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