Partial volume
Influence of Partial Volume on Venous Output and Arterial Input Function
... CTP is performed by monitoring the first passage of a bolus of contrast material through brain tissue. From these mea- surements relative estimates of the perfusion parameters can be obtained, but quantification requires ...
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Partial Volume Effect on MR Elastography
... MRE is a special technique which assesses the mechanical properties of tissues quantitatively. However, errors when using MRE may cause a misdiagnosis. In this study, the pattern of the wave images and the Pearson’s ...
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A method for model-free partial volume correction in oncological PET
... measured partial volume effects [31,32] which are, therefore, not representative for the conditions found in real ...accurate partial volume correction of real patient ...
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Quantification of Partial Volume Effects in Single Photon Computed Tomography
... Accurate quantification of activity in voxels, tumours as well as in targeted organs is important also for approval of new imaging agents. SPECT images of tumours are required to evaluate the success of therapy and also ...
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Effect of scatter coincidences, partial volume, positron range and non-colinearity on the quantification of FDOPA Patlak analysis
... The aim of this investigation is the assessment of the effect of physical effects, such as: scatter coincidences, partial volume, positron range and non-colinearity on the quantific[r] ...
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Clinical significance of partial volume averaging of the temporal bone
... 6.-A, Segment of tegmen T in formalin-fixed temporal bone chosen for study is seen as thin , bony density when sectioned in 70 0 tomographic plane fig.. Cochlea C is just medial to tegme[r] ...
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Quantification of partial volume effects in planar imaging
... The spheres were imaged mounted inside a Jaszczak phantom filled with activity free water using a Siemens E-Cam dual head gamma camera.. Images were quantified using Imag[r] ...
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Dynamic CT Measurement of Cerebral Blood Flow: A Validation Study
... CT Partial Volume Averaging Correction In CT, PVA results from the limited spatial res- olution of the scanner and decreases with increased spatial ...their volume is averaged together with that of ...
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Using Bayesian Tissue Classification to Improve the Accuracy of Vestibular Schwannoma Volume and Growth Measurement
... these partial volume effects, accepting that segmentation is not binary in nature from voxel to voxel; boundaries do not nor- mally align with the sampling grid at the resolution of the imaging ...
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Quantifying coronary sinus flow and global LV perfusion at 3T
... Only using the modulus image for delineation underestimate the flow, as the in-plane motion and the position mismatch often coincides with peak flow values.. Partial volume effects.[r] ...
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Magnetic resonance image tissue classification using an automatic method
... Background: Brain segmentation in magnetic resonance images (MRI) is an important stage in clinical studies for different issues such as diagnosis, analysis, 3-D visualizations for treatment and surgical planning. MR ...
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FLAIR Diffusion Tensor MR Tractography: Comparison of Fiber Tracking with Conventional Imaging
... increased volume of fibers tracts found on FLAIR DTI was due to elimi- nation of CSF partial volume effects but not because of the increased ...
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Chiari I malformations: assessment with phase contrast velocity MR
... To eliminate the possibility of partial volume measurements of the CSF surrounding the tonsils being incorporated in the regions of interest, flow studies in the axial plane with motion [r] ...
10
Internal Rotation of Cyclopentadienyl Rings in Ferrocene Derivatives
... For the alkyl- and arylferrocenes, the 1'/ β value was mostly fixed except for (tri- phenylmethyl)ferrocene (Figure 4). Of the ferrocene derivatives having a hy- droxyl group, only (1-hydroxybenzyl)ferrocene showed a ...
9
Haemoglobin as a buoyancy regulator and oxygen supply in the backswimmer (Notonectidae, Anisops)
... The volume of air collected at the surface of the water is regulated largely by the abdominal grooves on the backswimmer’s abdomen and the long hairs that fringe them ...
10
ULTRASONIC VELOCITY, DENSITY MEASUREMENT OF SCHIFF BASE OF (5-HYDROXY -3-METHYL-1-(2, 4-DINITROPHENYL) PYRAZOL-4- YL) (PHENYL) METHANONE AND ISONIAZIDE IN DIOXANE-WATER AT 303 K
... exhibits negative. It indicates the weak solute-solute or ion-ion interactions in Schiff base of benzoyl Pyrazolone system are present. From table-3, it was observed that the value of limiting apparent molal ...
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A multiphase multiscale model for nutrient limited tissue growth
... We remark that in many biological applications the density differences between phases may be small (and so terms in (3.32, 3.33, 3.37) associated with the corresponding change in volume as mass transfer occurs ...
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Densities and Partial Molar Volumes of Dodecyltrimethylammonium Bromide in Binary Systems (Methanol+Water) at T=(298.15 to 323.15) K
... The effects of temperature and relative permittivity on the densities values are directly evident from Figures 1 - 4. At each temperature, the densities values are found to decrease with decreasing relative permittivity ...
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Volume: 3.3 Case Report Urinary Bladder and Left Hypogastric Artery Paraganglioma. A Case Report and Literature Review
... An inherited factor is mentioned in 30% of the cases; however, other series do not report any correlation [5]. They have a malignant behavior in 5 to 19% of the cases regarding paragangliomas, but it can’t be foreseen ...
5
On Stochastic Models Describing the Motions of Randomly Forced Linear Viscoelastic Fluids
... 39 A. V. Skorokhod, Studies in the Theory of Random Processes, Addison-Wesley, Reading, Mass, USA, 1965. 40 A. Bensoussan, “Some existence results for stochastic partial differential equations,” in Stochastic ...
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