Search Results - "Helguera, Maria"

Noninvasive Quantitative Imaging of Collagen Microstructure in Three-Dimensional Hydrogels Using High-Frequency Ultrasound by Mercado, Karla P, Helguera, María, Hocking, Denise C, Dalecki, Diane

“…Collagen I is widely used as a natural component of biomaterials for both tissue engineering and regenerative medicine applications. The physical and…”
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Scholte wave generation during single tracking location shear wave elasticity imaging of engineered tissues by Mercado, Karla P, Langdon, Jonathan, Helguera, María, McAleavey, Stephen A, Hocking, Denise C, Dalecki, Diane

“…The physical environment of engineered tissues can influence cellular functions that are important for tissue regeneration. Thus, there is a critical need for…”
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Low-cost non-concentric diffraction-based encoder by Alvarez-Rodríguez, Sergio, Peña-Lecona, Francisco Gerardo, Briones, Manuel, Helguera, María, Alcalá-Ochoa, Noé

“…•Angular measurement by means of a non-concentric diffraction encoder.•Simulations verify the validity of the encoder’s mathematical design.•An experimental…”
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Estimating Cell Concentration in Three-Dimensional Engineered Tissues Using High Frequency Quantitative Ultrasound by Mercado, Karla P., Helguera, María, Hocking, Denise C., Dalecki, Diane

“…Histology and biochemical assays are standard techniques for estimating cell concentration in engineered tissues. However, these techniques are destructive and…”
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Leveraging Clinical Imaging Archives for Radiomics: Reliability of Automated Methods for Brain Volume Measurement by Adduru, Viraj R, Michael, Andrew M, Helguera, Maria, Baum, Stefi A, Moore, Gregory J

“…Purpose To validate the use of thick-section clinically acquired magnetic resonance (MR) imaging data for estimating total brain volume (TBV), gray matter (GM)…”
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Spatial patterning of endothelial cells and vascular network formation using ultrasound standing wave fields by Garvin, Kelley A, Dalecki, Diane, Yousefhussien, Mohammed, Helguera, Maria, Hocking, Denise C

“…The spatial organization of cells is essential for proper tissue assembly and organ function. Thus, successful engineering of complex tissues and organs…”
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Ultrasound Imaging and Characterization of Biofilms Based on Wavelet De-noised Radiofrequency Data by Vaidya, Kunal, Osgood, Robert, Ren, Dabin, Pichichero, Michael E, Helguera, María

“…Abstract The ability to non-invasively image and characterize bacterial biofilms in children during nasopharyngeal colonization with potential otopathogens and…”
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Fusion Viewer: A New Tool for Fusion and Visualization of Multimodal Medical Data Sets by Baum, Karl G., Helguera, María, Krol, Andrzej

“…A new application, Fusion Viewer, available for free, has been designed and implemented with a modular object-oriented design. The viewer provides both…”
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MULTIMODALITY IMAGING OF DAGUERREOTYPES AND DEVELOPMENT OF A REGISTRATION PROGRAM FOR IMAGE EVALUATION by Ravines, Patrick, Baum, Karl G., Cox, Nicholas A., Welch, Shawn, Helguera, María

“…This study documented 260 of the whole-plate daguerreotypes of Southworth and Hawes at George Eastman House International Museum of Photography and Film using…”
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Evaluation of Novel Genetic Algorithm Generated Schemes for Positron Emission Tomography (PET)/Magnetic Resonance Imaging (MRI) Image Fusion by Baum, K. G., Schmidt, E., Rafferty, K., Krol, A., Helguera, María

“…The use and benefits of a multimodality approach in the context of breast cancer imaging are discussed. Fusion techniques that allow multiple images to be…”
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Winter wheat light interception measured with a quantum sensor and images by Helguera, Maria Paula Garcia, Lollato, Romulo, Patrignani, Andres

“…Light interception (LI) measurements are essential for modeling crop biomass and grain yield. Canopy LI is often measured with linear quantum sensors, but the…”
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Evaluation of genetic algorithm-generated multivariate color tables for the visualization of multimodal medical fused data sets by Baum, Karl G., Helguera, Maria, Schmidt, Evan, Rafferty, Kimberly, Krol, Andrzej

“…Application of a multimodality imaging approach is advantageous for detection, diagnosis, and management of many ailments. Display is limited to two or three…”
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(PEAK) WALL STRESS AS AN INDICATOR OF ABDOMINAL AORTIC ANEURYSM SEVERITY by Jalalahmadi, Golnaz, Helguera, Maria, Mix, Doran S., Hodis, Simona, Richards, Michael S., Stoner, Michael C., Linte, Cristian A.

“…Abdominal aortic aneurysms, which consist of dilatations of the infra-renal aorta by at least 1.5 times of its normal diameter, are becoming a leading cause of…”
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Execution of the SimSET Monte Carlo PET/SPECT simulator in the condor distributed computing environment by Baum, Karl G, Helguera, María

“…SimSET is a package for simulation of emission tomography data sets. Condor is a popular distributed computing environment. Simple C/C++ applications and shell…”
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High frequency ultrasound imaging and characterization of biofilms by Vaidya, K., Hatfield, K., Helguera, M., Pichichero, M.

“…The goal of this study is to develop a high frequency, pulse-echo ultrasound system to non-invasively image and characterize biofilms in children during…”
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High-frequency quantitative ultrasound for characterizing collagen fiber alignment in murine tendon using angular dependence of integrated backscatter by Wayson, Sarah E., Helguera, María, Hocking, Denise C., Dalecki, Diane

“…Two major complications following tendon surgery are adhesion formation and re-rupture. There is a need to develop an ultrasound imaging system for…”
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Characterizing collagen microstructure using high frequency ultrasound by Mercado, Karla P., Helguera, María, Hocking, Denise C., Dalecki, Diane

“…Collagen is the most abundant extracellular matrix protein in mammals and is widely investigated as a scaffold material for tissue engineering. Collagen…”
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Parametric imaging of three-dimensional engineered tissue constructs using high-frequency ultrasound by Mercado, Karla P., Helguera, María, Hocking, Denise C., Dalecki, Diane

“…The goal of this study was to use high-frequency ultrasound to nondestructively characterize three-dimensional engineered tissues. We hypothesized that…”
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Investigation of PET/MRI image fusion schemes for enhanced breast cancer diagnosis by Baum, K.G., Rafferty, K., Helguera, M., Schmidt, E.

“…The benefit of registration and fusion of functional images with anatomical images is well appreciated in the advent of PET/CT. There is an increasing interest…”
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Techniques for Fusion of Multimodal Images: Application to Breast Imaging by Baum, K. G., Helguera, M., Hornak, J. P., Kerekes, J. P., Montag, E. D., Unlu, M. Z., Feiglin, D. H., Krol, A.

“…In many situations it is desirable and advantageous to acquire medical images in more than one modality. For example positron emission tomography can be used…”
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