Search Results - "Hollmann, Joseph L."

Measurement of Snowpack Density, Grain Size, and Black Carbon Concentration Using Time-domain Diffuse Optics by Henley, Connor A., Meyer, Colin R., Chalif, Jacob I., Hollmann, Joseph L., Raskar, Ramesh

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Compact, multi-exposure speckle contrast optical spectroscopy (SCOS) device for measuring deep tissue blood flow by Dragojević, Tanja, Hollmann, Joseph L, Tamborini, Davide, Portaluppi, Davide, Buttafava, Mauro, Culver, Joseph P, Villa, Federica, Durduran, Turgut

“…Speckle contrast optical spectroscopy (SCOS) measures absolute blood flow in deep tissue, by taking advantage of multi-distance (previously reported in the…”
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High-density speckle contrast optical tomography (SCOT) for three dimensional tomographic imaging of the small animal brain by Dragojević, Tanja, Varma, Hari M., Hollmann, Joseph L., Valdes, Claudia P., Culver, Joseph P., Justicia, Carles, Durduran, Turgut

“…High-density speckle contrast optical tomography (SCOT) utilizing tens of thousands of source-detector pairs, was developed for in vivo imaging of blood flow…”
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Enhanced tagging of light utilizing acoustic radiation force with speckle pattern analysis by Vakili, Ali, Hollmann, Joseph L, Holt, R. Glynn, DiMarzio, Charles A

“…In optical imaging, the depth and resolution are limited due to scattering. Unlike light, scattering of ultrasound (US) waves in tissue is negligible. Hybrid…”
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Near infrared spectroscopy for measuring changes in bone hemoglobin content after exercise in individuals with spinal cord injury by Draghici, Adina E., Potart, Diane, Hollmann, Joseph L., Pera, Vivian, Fang, Qianqian, DiMarzio, Charles A., Andrew Taylor, J., Niedre, Mark J., Shefelbine, Sandra J.

“…ABSTRACT Bone blood perfusion has an essential role in maintaining a healthy bone. However, current methods for measuring bone blood perfusion are expensive…”
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Analysis and modeling of an ultrasound-modulated guide star to increase the depth of focusing in a turbid medium by Hollmann, Joseph L, Horstmeyer, Roarke, Yang, Changhuei, DiMarzio, Charles A

“…The effects of strong scattering in tissue limit the depth to which light may be focused. However, it has been shown that scattering may be reduced utilizing…”
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Diffusion model for ultrasound-modulated light by Hollmann, Joseph L, Horstmeyer, Roarke, Yang, Changhuei, DiMarzio, Charles A

“…Researchers use ultrasound (US) to modulate diffusive light in a highly scattering medium like tissue. This paper analyzes the US-optical interaction in the…”
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High-density speckle contrast optical tomography of cerebral blood flow response to functional stimuli in the rodent brain by Dragojević, Tanja, Vidal Rosas, Ernesto E, Hollmann, Joseph L, Culver, Joseph P, Justicia, Carles, Durduran, Turgut

“…Noninvasive, three-dimensional, and longitudinal imaging of cerebral blood flow (CBF) in small animal models and ultimately in humans has implications for…”
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Multiple-source optical diffusion approximation for a multilayer scattering medium by Hollmann, Joseph L, Wang, Lihong V

“…A method for improving the accuracy of the optical diffusion theory for a multilayer scattering medium is presented. An infinitesimally narrow incident light…”
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Error analysis of finite-spectral-linewidth illumination in optical oximetry systems by Hollmann, Joseph L, DiMarzio, Charles A

“…Multi-spectral systems consisting of a small number of wavelengths are increasingly using light emitting diodes (LEDs) to reduce the overall costs of the…”
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Computational microscopy in embryo imaging by Hollmann, Joseph L, Dunn, Andrew K, Dimarzio, Charles A

“…The growth of computing power has greatly improved our ability to extract quantitative information about complicated three-dimensional structures from…”
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Optical mean irradiance change for inference of focused-ultrasound-induced strain and thermal expansion in tissue-like materials by Holt, R. Glynn, Vakili, Ali, Hollmann, Joseph L, DiMarzio, Charles A.

“…Inferring material properties in scattering media, especially tissue, is a commonly applied method for detecting flaws or abnormalities. Hybrid acoustic/optic…”
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Compact, multi-exposure speckle contrast optical spectroscopy (SCOS) device for measuring deep tissue blood flow by Dragojević, Tanja, Hollmann, Joseph L, Tamborini, Davide, Portaluppi, Davide, Buttafava, Mauro, Culver, Joseph P, Villa, Federica, Durduran, Turgut

“…Speckle contrast optical spectroscopy (SCOS) measures absolute blood flow in deep tissue, by taking advantage of multi-distance (previously reported in the…”
Get full text

High-density speckle contrast optical tomography (SCOT) for three dimensional tomographic imaging of the small animal brain by Dragojevic, Tanja, Varma, Hari M, Hollmann, Joseph L, Valdes, Claudia P, Culver, Joseph P, Justicia, Carles, Durduran, Turgut

“…High-density speckle contrast optical tomography (SCOT) utilizing tens of thousands of source-detector pairs, was developed for in vivo imaging of blood flow…”
Get full text