example of mr imaging for tbi
Báo cáo hóa học: "Research Article Evaluation of a Validation Method for MR Imaging-Based Motion Tracking Using Image Simulation" ppt
... Digital Imaging and Communication in Medicine (DICOM) format Figures 1(a) and 1(b) show an example of an MR image and tagged MR image of a region of the phantom The voxel intensities of the images ... Signal Processing measure of deformation allowing validation of MR imagingbased motion and deformation tracking A silicone gel soft tissue phantom was developed to represent deformation modes expected ... be minimised for a given SNR by adjusting the T value Discussion Several MR imaging- based motion tracking algorithms have been proposed in the literature, for example, tagged MR imaging [41]...
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Báo cáo khoa học: "Value of diffusion weighted MR imaging as an early surrogate parameter for evaluation of tumor response to high-dose-rate brachytherapy of colorectal liver metastase" docx
... source of 10 Ci (370 GBq) The minimal target dose prescribed for colorectal metastases was 19.4 ± 3.1 Gy (range: 10.3 - 24.0 Gy) MR Imaging Protocol Magnetic resonance imaging was performed with ... follow-up MRI compared to baseline MRI Boxplot illustrates changes of mean ADC of non-treated and treated colorectal liver metastases days (early MRI) as well as months (follow-up MRI) following ... issue For the present study, we chose to perform MRI including DWI very early at a median of days following HDRBT Thus, we were enabled to obtain first information on the treatment response before...
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Tài liệu Detection of Pulmonary tuberculosis: comparing MR imaging with HRCT pptx
... of for MRI/CT agreement was recorded for consolidations, nodules and cavities In patients, MRI easily assessed caseation while CT showed aspecific hypodensity (Figure 1a, b) The k value for MRI/CT ... http://www.biomedcentral.com/1471-2334/11/243 Page of Table Detection and percentage of pulmonary involvement in 60 HRTC and 60 MRI images Location Score CT Score MRI CT Score Score P value MRI CT MRI CT MRI Upper zone 224 ... interpretation All MR images were independently analyzed by two board-certified radiologists (VS, EBR, both with 10 years of experience in clinical MR imaging and 25 years of experience in chest imaging) ...
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Báo cáo khoa học: MR solution structure of the precursor for carnobacteriocin B2, an antimicrobial peptide fromCarnobacterium piscicola Implications of the a-helical leader section for export and inhibition of type IIa bacteriocin activity pdf
... University of Alberta) for performing all CD experiments Albin Otter (Department of Chemistry) and Ryan T McKay (NANUC, University of Alberta) are gratefully acknowledged for assistance with NMR experiments ... importance of this helix for membrane-bound receptor recognition and consequent antimicrobial activity [2,10] For example, Fimland et al [42] have shown that interchange of large domains of different ... based on UNIX pipes J Biomol NMR 6, 277–293 37 Johnson, B.A & Blevins, R.A (1994) NMR view: a computerprogram for the visualization and analysis of NMR data J Biomol NMR 4, 603–614 38 Gagne, S.M.,...
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Báo cáo khoa học: A strategy for the generation of specific human antibodies by directed evolution and phage display An example of a single-chain antibody fragment that neutralizes a major component of scorpion venom docx
... mixture of HuJHBACK primers [40] in independent reactions for each family For light chain variable domains, a similar procedure was performed using each HuVjFOR and a mixture of HuJjBACK for j ... Centruroides noxius Hoffmann were isolated and functionally characterized Cn2 is one of the most abundant and toxic components of C noxius venom (6.8% of total venom; LD50 ¼ 0.25 lg per 20 g of mouse weight) ... noxius venom To the best of our knowledge, this is the first report of the generation of a human recombinant antibody fragment capable of neutralizing the toxic effects of the whole venom from...
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Báo cáo hóa học: "Research Article ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimation for Polynomial Phase Signal" docx
... derivative 500 (b) IHMPT for the signal Figure 2: Results of the numerical example Principle of IHMPT 3.1 The High-Order Matched Phase Transform (HMPT) Consider the discrete form of monocomponent CPS ... phase signal model for the received signal of ship target in ISAR imaging is established; in Section 3, the principle of IHMPT is presented, and the ISAR imaging algorithm of ship target based ... (10) 3.3 Numerical Example In this section, we use the numerical example to demonstrate the effectiveness of IHMPT in the suppression of cross-terms for multicomponent CPS For convenience, we...
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Báo cáo khoa học : Tissue Doppler imaging for the diagnosis of coronary artery disease ppt
... terms of complexity and cost At the present time tissue Doppler velocity imaging can be recommended for clinical use, especially the pulsed mode Strain rate imaging may be useful as additional imaging, ... Real-time strain rate imaging of the left ventricle by ultrasound J Am Soc Echocardiogr 1998, 11:1013–1019 Derumeaux G, Ovize M, Loufoua J, et al.: Assessment of nonuniformity of transmural myocardial ... of myocardial viability Eur Heart J 2003, 24(abstr suppl):242 Papers of particular interest, published within the annual period of review, have been highlighted as: • Of special interest •• Of...
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Báo cáo khoa học: "SemiFDG-PET/CT imaging for staging and target volume delineation in conformal radiotherapy of anal carcinoma" potx
... use of functional imaging As a matter of fact, a number of recent literature studies tried to show that the addiction of PET and PET/ CT may be able to add useful information for the carcinoma of ... the base of the skull were acquired for 3-4 minutes per bed position Field of view was of 50 cm with a matrix of 512 × 512 pixels for CT and of 128 × 128 for PET The processed images were displayed ... both for attenuation correction of PET data and for localization of FDG uptake in PET images All patients were advised to fast for at least hours prior to PET/CT examination After injection of...
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Báo cáo khoa học: "[18F]fluoroethylcholine-PET/CT imaging for radiation treatment planning of recurrent and primary prostate cancer with dose escalation to PET/CT-positive lymph node" potx
... to 20% of the rectum (V20) was kept to a maximum of 70 Gy Weekly portal imaging was done in the case of 3D conformal irradiation or with megavoltage cone beam CT (CBCT) in the case of IMRT, with ... months and 75% for patients with recurrent disease An example of the dose distribution of FEC-PET/CTplanned IMRT radiotherapy is given in Figure (patient number 24, table 1) Patterns of relapse A ... an SUV max of 6,0 and an maximum diameter of 1,6 cm The patient received IMRT irradiation of the pelvic lymph nodes to 45 Gy (five weekly fractions of 1,8 Gy) with a total boost dose of 66,6 Gy...
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Báo cáo khoa học: "FDG-PET/CT imaging for staging and radiotherapy treatment planning of head and neck carcinoma" pps
... correction of PET data and for localization of FDG uptake in PET images All patients were advised to fast for at least hours prior to PET/CT examination After injection of about MBq of FDG per kg of ... minutes per bed position Field of view was of 50 cm with a matrix of 512 × 512 pixels for CT and of 128 × 128 for PET The proc- Page of (page number not for citation purposes) Radiation Oncology ... rested for a period of about 60 minutes in a comfortable chair Emission images ranging from the proximal femur to the base of the skull were acquired for 2–3 minutes per bed position Field of view...
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Báo cáo khoa học: " Systematisation of spatial uncertainties for comparison between a MR and a CT-based radiotherapy workflow for prostate treatments" pptx
... of the hardware configuration for the MR positioning of patients Schematic overview of the hardware configuration for the MR positioning of patients There is a direct connection between the MR ... axial MR study, of mm at the base of seminal vesicles and up 2.8 mm in the prostate apex The uncertainty in the head-feat (HF) direction was 2.5 mm with a slice thickness of 5-6 mm for the axial MR ... content in the CT representation of the prostate [29,30] A few studies have been performed evaluating the accuracy and precision of MI registration for CT and MR studies of the prostate; the registration...
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Báo cáo khoa học: " Comparison of T2 and FLAIR imaging for target delineation in high grade gliomas" pptx
... range of 0.079 -1 (std dev 0.15) The average fractional component of the CTV Union was 12.9% for T2 and 25.7% for FLAIR, while the overlap contributed the majority (63.6%) as shown in figure For example, ... with introduction of CT imaging, MRI was developed and quickly became an important tool for radiation treatment planning Biopsy evaluation identified tumor cells in the area of MRI T2 abnormality ... generated with different MRI sequences Because of the retrospective design of this study, we evaluated the overlap of the PTVs with normal structures as a surrogate for toxicity It is probable...
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Báo cáo y học: "What do we know about communicating risk? A brief review and suggestion for contextualising serious, but rare, risk, and the example of cox-2 selective and non-selective NSAIDs" pot
... calculations were for additional number of events, the likely number of additional deaths, and the frequency of those deaths For example, for gastrointestinal bleeding with a background rate of 2.2 bleeds ... http://arthritis-research.com/content/10/1/R20 A series of examples follow, using a vertical form of the Paling Perspective Scale, populated with numerical and verbal descriptors of risk, together with information on the risk of death from ... risks of death Page of 16 (page number not for citation purposes) Materials and methods We initially searched PubMed using a number of free-text terms for the particular area of interest Thus for...
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báo cáo khoa học: " Improving eye care for veterans with diabetes: An example of using the QUERI steps to move from evidence to implementation: QUERI Series" ppsx
... accounted for approximately one-third of the cases of suboptimal timing However, all of these failures were for patients who had gone more than three years without an exam Not a single case of preventable ... risk status for these visits as shown in Table A subset of patients was subsequently selected for testing the follow-up component of the PRSS Appointment information was extracted for this subset ... factors summary form to prompt entry of certain required information as part of the charting process Two prototypes were created and plans were being made for testing and refinement of the electronic...
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Báo cáo y học: "Is obesity a risk factor for low back pain? An example of using the evidence to answer a clinical question" ppsx
... to examine the source As an example of an evidence summary see Table It is at this time that the clinician is ready for the final step of applying the evidence In our example clinical data from ... A specific diagnosis, instead of the generalized form of "low back pain" may help separate out the association between LBP and obesity Page of (page number not for citation purposes) Chiropractic ... method of data retrieval The purpose of this review is to establish, from recent research, if there is a causal link between obesity and the affliction of low back pain A secondary purpose of this...
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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
... admission Of the 65 patients, 26 were excluded from this study as follows: lack of MRI data because of early death before MRI (n = 10); MRI delay over five days after ROSC (n = 3); no informed consent ... to the use of two kinds of MR scanners On the workstation, the ADC value of each pixel was constantly displayed on the screen with a movement of a region of interest (ROI) cursor For each patient, ... limitations of this study First, two different scanners were used for the patients, and a smaller number of patients than all of the study patients were used to determine the cutoff value of the ADC for...
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A study on an example of non-verbal interaction between the presenter and audience for English majored students at the School of Foreign Language
... students can formulate the idea of their level of proficiency, know their weak and strong points and set the targets for their next presentation In turn, by planning the directions of progress for themselves, ... who look for a skillful labor force of the company and employees those who always desire for an ideal job in their life Moreover, presentation passes the range of need to become an area of interest ... terms of students, there are several reasons causing stage fright to students before giving a presentation Students may fear of being stared at, fear of failure, fear of rejection, fear of the...
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Structuring an advertising business in Vietnam (an example of FPT media - the corporation for financing and promoting technology)
... interact informally on the job Moreover, many of the rules and norms 13 that employees use to perform their task emerge out of informal interactions between people and not from the formal blueprint ... focusing advertising efforts on a particular group of people For example, think of an advertising campaign targeting a female audience aged 25 to 45 While the overall rating of a TV show might be ... the whole category of products This phenomenon is sometimes known as "hyper branding." Kleenex, for example, can distinguish itself as a type of tissue or a label for a category of products That...
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Application of diffusion techniques to the segmentation of mr 3d images for virtual colonoscopy
... B.1 Segmented result of slice 19 of dataset MRC712 82 B.2 Segmented result of slice 27 of dataset MRC712 83 B.3 Segmented result of slice 41 of dataset MRC712 83 ... administration of gadolinium for enhancement of soft tissues 2.2 Anisotropic Diffusion of MR Images The goal of this section is to present the possible usage of anisotropic diffusion techniques with MR images ... of the curve or surface; prior information of the shape to be segmented) The trade-off between geometric and image-derived information lies at the basis of the popularity and diversity of deformable...
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Formulation of superparamagnetic iron oxides by nanoparticles of biodegradable polymer for magnetic resonance imaging (MRI)
... applications include imaging of the liver, spleen, and breast For future applications such as imaging of specific molecular targets to allow for earlier recognition and characterization of disease, earlier ... mixtures of them with different concentrations of blank PLGA-mPEG nanoparticles 53 Figure 7.1 Biodistribution of iron in various organs (1 hr after injection) 57 Figure 7.2 MR imaging of the livers of ... 2.2.1 Basic principles of MRI Nuclear spin is the basis of NMR When a nucleus contains an even number of protons and neutrons, the individual spins of these particles pair off and cancel out, leaving...
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