gadolinium containing contrast agents for magnetic resonance imaging mri investigations on the environmental fate and effects
Fate of Pharmaceuticals in the Environment and in Water Treatment Systems - Chapter 4 potx
... concentration, on the one hand, and the experimental determination of a no-effect concentration (NOEC) of the pharmaceutical on the other hand.3,4 Because the aquatic environment represents the primary ... are therefore assumed to occur in lower concentrations in the aquatic environment Considering the estimated environmental concentrations and the results of the ecotoxicological investigations ... to a higher bioconcentration 4.4.3 ENVIRONMENTAL RELEVANCE To complete the environmental risk assessment, the concentrations of the contrastenhancing agents in the aquatic environment had to be...
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Báo cáo hóa học: " Carbon-coated iron oxide nanoparticles as contrast agents in magnetic resonance imaging" potx
... xerography, and on the ferrofluids, used as contrast agents in magnetic resonance imaging [MRI] [10-13] The carbon coating provides an effective oxidation barrier and prevents corrosion in magnetic ... Carbon-coated iron oxide nanoparticles as contrast agents in magnetic resonance imaging Hongsub Bae1, Tanveer Ahmad1, Ilsu Rhee*1, Yongmin Chang2, Seong-Uk Jin2, and Sungwook Hong3 Department ... coating of the nanoparticles and the water solvation around the nanoparticles The diffusion constant of the nanoparticles in water was 9.7265 × 10−9 cm2/s The bonding status of carbon on the surfaces...
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Formulation of superparamagnetic iron oxides by nanoparticles of biodegradable polymer for magnetic resonance imaging (MRI)
... is the proton relaxation rate (1/T, s-1) in the presence of the contrast agent, R0 is the relaxation rate in the absence of the contrast agent and C is the contrast agent concentration (mM) The ... temperature The drug is dissolved in the polymerization medium either before the addition of the monomer or at the end of the polymerization reaction The nanoparticle suspension is then purified ... and MRI contrast agent to achieve simultaneous diagnostic and therapeutic effects One of the factors determining the particle size and the size distribution of nanoparticles is the preparation...
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Báo cáo y học: "Voxel-based structural magnetic resonance imaging (MRI) study of patients with early onset schizophrenia" potx
... guaranteed, the non-parametric methods provide the only analysis that can be considered valid and exact As the distribution of the structural data derived from MRI scans may violate the assumptions, ... Authors' contributions YY, GS, and TT designed the study YY and TT contributed to recruitment of study subjects and MRI data collection HM and TT were involved in clinical evaluation of the participants ... in the EOS group, the regional volume reduction of GM was evident in the left parahippocampal gyrus, the left inferior frontal gyrus, and the left superior temporal gyrus These findings were consistent...
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Báo cáo y học: "Cartilage markers and their association with cartilage loss on magnetic resonance imaging in knee osteoarthritis: the Boston Osteoarthritis Knee Study" doc
... questionnaire that screened for other forms of arthritis, including rheumatoid arthritis, and information on the use of medications for arthritis was gathered If a patient screened positive for ... Center and the Veterans Administration Boston Health Care System approved the baseline and follow-up examinations, and informed consent was obtained from all participants Magnetic resonance imaging ... and skyline views) and if on any of these views they had a definite osteophyte in the symptomatic knee (either tibiofemoral or patellofemoral), they were eligible for the study In addition, they...
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Magnetic resonance imaging techniques for contrast enhanced cellular and molecular imaging
... iron-oxide nanoparticles IRON inversion recovery with on- resonant water suppression MPIO micron-sized iron-oxide particles MRI magnetic resonance imaging MRS magnetic resonance spectroscopy MUTE ... superparamagnetic (ironoxides) (61,67) contrast agents for magnetic resonance imaging detection, and fluorescent dyes for optical detection (68,69) Recent advances in probe development explored the ... been the source of contrast in MR imaging and is the reason for its superiority in in-vivo visualization of soft tissue (109-111) In molecular and cellular imaging, the use of MR contrast agents...
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Báo cáo y học: "Autologous chondrocyte implantation for cartilage repair: monitoring its success by magnetic resonance imaging and histology" ppt
... assessment can provide only limited information, as it is from a discrete location MRI, in contrast, can provide information on the whole area In addition, it is noninvasive and successive scans ... chondrocyte implantation Staining was stronger for chondroitin-4-sulfate (2-B-6) (a), chondroitin-6-sulfate (3-B-3) (b), and keratan sulfate (5-D-4) (d) than for the abnormally sulfated chondroitin-6-sulfate ... strongly were keratan sulfate and chondroitin-4-sulfate Less staining was seen for chondroitin-6-sulfate, with very slight staining for the unusually sulfated epitope, demonstrated with 7-D-4 The...
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báo cáo khoa học: " N-hexanoyl chitosan stabilized magnetic nanoparticles: Implication for cellular labeling and magnetic resonance imaging" pps
... comparison with control cells Cells were incubated for additional 24 h after the addition of defined concentration of MC-IOPs The mixture was replaced with fresh medium containing 10% FBS Then, ... measured the hydrodynamic particle size in the dispersion medium TEM images show the core particle size, without the contribution from the MC; since the MC layer normally collapses onto the IOPs ... Iron content in RAW cells Cells were cultured with different concentration of MC-IONPs for h, and incubated for 24 h with fresh medium C, 1, and represent 0, 5, 10 and 20 µl of MC-IOPs from the...
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Báo cáo y học: "Cerebral misery perfusion diagnosed using hypercapnic blood-oxygenation-level-dependent contrast functional magnetic resonance imaging: a case report" potx
... current literature on cerebral misery perfusion and drafted the manuscript SG and DA conducted the BOLD -MRI imaging, provided radiographic images, reported on these, and provided the outlines of ... measurements for both OEF and CBF, but is cumbersome and not widely available Other modalities, such as the BOLD -contrast fMRI used here, establish a measurement of rCBF either by comparing the affected ... profile for misery perfusion in the near future if EC-IC bypass is demonstrated to be effective Consent Written informed consent was obtained from our patient for publication of this case report and...
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Báo cáo y học: "Diffusion-weighted magnetic resonance imaging for predicting the clinical outcome of comatose survivors after cardiac arrest: a cohort study" pptx
... with CT or conventional MRI often underestimates the actual extent of injury in the acute period [6,7] In contrast to CT and conventional MRI, diffusion-weighted imaging (DWI) can reveal the acute ... trauma with normal brain MRIs Informed consent was obtained from the patients’ relatives and all controls Magnetic resonance imaging In total, 22 of the 39 patients and 23 control subjects were assessed ... Association in collaboration with International Liaison Committee on Resuscitation: Guidelines 2000 for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care: International Consensus on Science...
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Microgel iron oxide nanoparticles for tracking of stem cells through magnetic resonance imaging
... 49: Intracellular iron as a function of labelling concentration As iron concentration in the labeling medium was increased, the iron loading of the cells were increased and the difference in loading ... transplantation route, timing, dosage and cell type The temporal and spatial information of the cells will provide feedback on their engraftment efficiency and functional capacity to allow monitoring and ... Cell Therapy An important consideration for cell therapy is the host immune response to the transplanted cells Immune-rejection by the host can compromise the efficacy of stem 33 Introduction cells...
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Tài liệu Magnetic resonance imaging and gynecological devices doc
... interaction between magnetic resonance imaging and the copper-T380A IUD Contraception 1997;55:169–73 543 [13] Zieman M, Kanal E Copper T 380A IUD and magnetic resonance imaging Contraception 2007;75:93–5 ... distortion in the surrounding tissue [5] The size and shape of the artifact depend on the size, shape, orientation and nature of the metal, as well as the sequences used in the exam [6] The artifact ... Removing the IUD for the single purpose of performing a safe MRI was no longer justified According to the same authors, and even though ultrasonography is still the main imaging methodology for the...
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Tài liệu Functional Magnetic Resonance Imaging – Advanced Neuroimaging Applications Edited by Rakesh Sharma doc
... the latter two is that when we look at a person their head is on top and their feet are on the bottom and the physical person does not get blurred The proximal on the other hand is 2-dimensional, ... endpoints and the fMRI data Furthermore, the authors highlighted the needs such as common methodology of analysis and reporting the fMRI data for better comparison and interpretation of the results ... join the temporal fibers of the fellow eye to form the optic tract (Schwartz, 2004) The long axons of the retinal ganglion cells leave the eye, form the second cranial nerve (the optic nerve), and...
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Báo cáo hóa học: " Adenoviruses with an avb integrin targeting moiety in the fiber shaft or the HI-loop increase tumor specificity without compromising antitumor efficacy in magnetic resonance imaging of colorectal cancer metastases" pdf
... modification in the HI loop and mutation of the fiber shaft KKTK domain to GATK (the HSPG binding ablation) showed reduced liver and spleen transduction in comparison with wild type virus This demonstrates ... was seen in all the other organs as well This may have been caused by the opposite effects of HSPG ablation and RGD insertion; while the former ablates transduction via HSPG, the latter increases ... done by JH and SLA and quantification of tumor volumes and subsequent analysis of the data by SLA Statistical calculations were performed by SP SLA, TT and SP analyzed the data, interpreted the...
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báo cáo hóa học:" Dynamic magnetic resonance imaging in assessing lung function in adolescent idiopathic scoliosis: a pilot study of comparison before and after posterior spinal fusion" doc
... infection at the time of the MR studies before and after operation Ethical approval and informed consent for dynamic breath-hold MR imaging have been obtained from all the subjects and their parents ... parents MRI assessment Pre operative MRI examination of the chest was performed in all subjects within two weeks before the operation, while the post operative MRI was performed after months from the ... Instrumentation consisted of three types (a) cases of Harrington rod on concave side, Luque rod on convex side and Wisconsin wire for the instrumented spinous processes (b) cases of ISOLA instrumentation...
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Báo cáo hóa học: "Research Article Independent Component Analysis for Magnetic Resonance Image Analysis" pot
... only the GM, WM, and CSF are of major interest Therefore, the MRI quantitative analysis performed in this section was conducted based on contrast enhancement of these three brain tissues in the ... maximize the margin of separation among these samples Another crucial and unique feature that the SVM has is the data space on which they perform The SVM makes use of a nonlinear kernel to map the ... Journal on Advances in Signal Processing flected by combinations of TR and TE before and after the ICA transform, the contrast resulting from effects of the ICA can be used to perform image evaluation...
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Pocket Atlas of Sectional Anatomy Computed Tomography and Magnetic Resonance Imaging - Volume II Thorax, Heart, Abdomen, and Pelvis (Part 1 ) pptx
... Usage subject to terms and conditions of license 84 132 150 162 164 166 168 Contents VIII Pelvis MRI MRI MRI MRI MRI MRI MRI of of of of of of of the the the the the the the Female Pelvis—Axial ... classification We have limited ourselves to scans which are presently recognized as standard In the CT images of the coronary vessels of the heart we have diverged from the conventional designations and ... specialist, whether the dosage schedules mentioned therein or the contraindications stated by the manufacturers differ from the statements made in the present book Such examination is particularly...
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Pocket Atlas of Sectional Anatomy Computed Tomography and Magnetic Resonance Imaging - Volume II Thorax, Heart, Abdomen, and Pelvis (Part 2 ) doc
... subject to terms and conditions of license 178 MRI of the Female Pelvis 28 29 30 31 32 Moeller, Sectional Anatomy © 2007 Thieme All rights reserved Usage subject to terms and conditions of license ... nodes Common iliac lymph nodes Moeller, Sectional Anatomy © 2007 Thieme All rights reserved Usage subject to terms and conditions of license 140 MRI of the Abdomen 35 36 37 38 39 —— = Peritoneum ... Common iliac lymph nodes Moeller, Sectional Anatomy © 2007 Thieme All rights reserved Usage subject to terms and conditions of license 141 142 MRI of the Abdomen 36 37 38 39 40 41 42 —— = Peritoneum...
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Tìm thêm: xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam nội dung cụ thể cho từng kĩ năng ở từng cấp độ phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng 9 tr 25