phantom study
Robustness of radiomic features in magnetic resonance imaging: review and a phantom study
... We believe one option to improve robustness analysis of MRI radiomics studies is to systematically evaluate the be- havior of the radiomic features under various conditions. With a well-defined “dictionary” of robust ...
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Performance of Iterative Image Reconstruction in CT of the Paranasal Sinuses: A Phantom Study
... our phantom study, we con- sider 2 interesting application areas that might be suitable for iterative reconstruction techniques: One may be the evaluation of bony structures with decreased dose parameters, ...
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Accuracy of 177Lu activity quantification in SPECT imaging: a phantom study
... account for the spill out effect. Segmentations which used the true dimensions of each object (based on CT images) were strongly affected by PVEs, especially for the smallest spheres (S2 – S4). The accuracy obtained for ...
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Multicolour imaging with spectral photon-counting CT: a phantom study
... the study by Roessl et ...gadolinium study, at 30, 53, 78, 83 and 98 keV for the gold study, at 30, 51, 78, 83 and 98 keV for the gold and gadolin- ium mixture study, and at 30, 51, 64, 72 and ...
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Study protocol for the PHANTOM study: prehospital assessment of noninvasive tissue oximetry monitoring
... cohort study will be conducted in prehospital services where physician/paramedic teams respond rapidly to patients suffering significant traumatic ...A study observer accompanying the clinical team will ...
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Element-specific spectral imaging of multiple contrast agents: A phantom study
... Abstract: This work demonstrates the feasibility of simultaneous discrimination of multiple con- trast agents based on their element-specific and energy-dependent X-ray attenuation properties using a pre-clinical ...
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A phantom study of intracranial CSF signal loss due to pulsatile motion
... The absolute severity of the flow void therefore depends on the size of the velocity spread within an image voxel , and this velocity spread depends on the net fluid displacement per bea[r] ...
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How to Size Intracranial Aneurysms: A Phantom Study of Invasive and Noninvasive Methods
... this study, we investigated multidetector and flat panel angiographic CT and digital subtraction imaging as well as different postprocessing methods (multiplanar reconstruction, volume-rendering technique, 3D DSA, ...
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Accuracy and stability of radiomic features for characterising tumour heterogeneity using multimodality imaging: a phantom study
... With the concept shown in Figure 22B, three differently shaped cubical compartments were designed, referred to as the L-shape, stair-shape and U-shape (Figure 23A). As no pixel size dimensions were defined in the ...
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MR detection of intracranial calcification: a phantom study
... First, when the calcification filled more than half the slice volume , the conspicuity depended on the contrast between the matrix material and the signal void associated with the calcif[r] ...
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A phantom study on factors influencing exposure indicator (EI)
... retrospective study was conducted to gather informations on the range of exposure factors commonly used for a 1 year old chest ...equivalent phantom was exposed with the selected exposures with three ...
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Calculating coniferous tree coverage using unmanned aerial vehicle photogrammetry
... to identify and colour the coniferous trees in red. Marking the coniferous trees was executed using Photoshop CS6 v13.0. The Color Replacement Tool was used to saturate the coniferous tree colour to red shades ...
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Consequences of the Patient's Mis centering on the Radiation Dose and Image Quality in CT Imaging – Phantom and Clinical Study
... Unfortunately, this comparison of the noise from repeated CT exams did not show an increase of the SDs with higher values of mis-centering. This is not in agreement with the results from the phantom simulations ...
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Phantom Fighters: Coping Mechanisms of Amputee Patients with Phantom Limb Pain: A Longitudinal Study
... Phantom Limb Pain (PLP) is a phenomenon commonly observed in orthopedic rehabilitation units that can have detri- mental effects on patients’ functioning. Psychological aspects of PLP have been widely investigated ...
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Development of a temperature-controlled phantom for magnetic resonance quality assurance of diffusion, dynamic, and relaxometry measurements.
... The research leading to these results has received support from the Innovative Medicines Initiative Joint Undertaking (www.imi.europa.eu) under Grant Agreement No. 115151, resources of which are composed of financial ...
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Characterisation of bone tissue using coherently scattered X-ray photons
... this study, or variations in cortical thickness and physical size of the bone could be modelled using multivariate calibration ...the study come from a location that has good documentation of the ...
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Coax-Fed Dipole-Type Applicator for Hepatic Cancer RF Ablation
... simple phantom model that emulates a human body. The numerical phantom model, as shown in Figure 3, consists of three layers (skin, fat, and muscle, respectively) from exterior to ...the phantom, a ...
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The phantom illusion
... Probably more importantly, neither the DOG/ODOG formalism, nor the edge integration formalism, includes a mechanism to perform edge classification, which is required in order to exclude illumination edges from ...
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Source location privacy in wireless sensor networks under practical scenarios : routing protocols, parameterisations and trade offs
... So far results presented in this chapter have observed the impact of (i) random walk length, (ii) source period, (iii) network size and (iv) number of sources. In this section, in order to have a comprehensive ...
195
Phantom Limbs
... You don’t indulge in poetry, you bear it, like a terminal illness, an escutcheon,. a roman numeral after a surname, a curse[r] ...
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