Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Frank A. Moscatelli"'
Autor:
Sang Hoon Chong, Vadim A. Markel, Ashwin B. Parthasarathy, Yi Hong Ong, Kenneth Abramson, Frank A. Moscatelli, Arjun G. Yodh
Publikováno v:
Journal of biomedical optics. 27(11)
Rapid estimation of the depth and margins of fluorescence targets buried below the tissue surface could improve upon current image-guided surgery techniques for tumor resection.We describe algorithms and instrumentation that permit rapid estimation o
Novel Approach to Spatial Frequency Domain Fluorescence Diffuse Optical Tomography for Tumor Imaging
Autor:
Vadim A. Markel, Yi Hong Ong, Ashwin B. Parthasarathy, Frank A. Moscatelli, Sang Hoon Chong, Arjun G. Yodh
Publikováno v:
Biophotonics Congress: Biomedical Optics Congress 2018 (Microscopy/Translational/Brain/OTS).
We discovered a limitation of SVD-based analytic inversion algorithm for spatial frequency domain fluorescence diffuse optical tomography. We illustrate the issue and introduce an algorithm to overcome this challenge.
Autor:
Arjun G. Yodh, Sang Hoon Chong, Ashwin B. Parthasarathy, Frank A. Moscatelli, Sunil Singhal, Venkaiah C. Kavuri
Publikováno v:
Emerging Digital Micromirror Device Based Systems and Applications IX.
We present a biomedical application of Digital Micro-mirror technologies by adapting the DLP4500 module for quasi real-time intraoperative tumor imaging. Fluorescence image guided surgery has been increasingly popular due to its ability to inform sur
Autor:
Arjun G. Yodh, Venkaiah C. Kavuri, Sang Hoon Chong, Ashwin B. Parthasarathy, Frank A. Moscatelli, Sunil Singhal
Publikováno v:
Molecular-Guided Surgery: Molecules, Devices, and Applications III.
Surgical resection is the most effective treatment strategy for solid tumors, but complete removal of the tumor is critical for post-surgical recovery/long-term survival and is dependent on correct identification of the tumor margin and accurate exci
Autor:
Sanghoon Chong, Isaure L. de Kernier, Ashwin B. Parthasarathy, Frank A. Moscatelli, Arjun G. Yodh, Sunil Singhal, Venki Kavuri
Publikováno v:
Biomedical Optics 2016.
We report instrumentation & methods for depth sensitive imaging of tumor fluorescence in an intraoperative setting with spatial frequency domain imaging. We show preliminary reconstruction results, with simulation, using an analytic inversion method.
Publikováno v:
Molecular-Guided Surgery: Molecules, Devices, and Applications.
Surgery is the most effective treatment strategy for solid tumors. Intraoperative imaging of tumors helps detect tumor margins and establish the most appropriate surgical margins. Endoscopic surgery is a standard of care procedure for the resection o
Publikováno v:
Physical Review A. 55:R2543-R2546
We report on experiments investigating the optimization of laser-ablated plasmas which are used to produce recombination-pumped, short-wavelength lasers. We evaluate the density of electrons and neutral atoms in laser ablated lithium and carbon plasm
Autor:
John C. Schotland, Arjun G. Yodh, Han Y. Ban, Saurav Pathak, Manabu Machida, David R. Busch, Vadim A. Markel, Frank A. Moscatelli
Publikováno v:
Journal of biomedical optics. 18(2)
Diffuse optical tomography (DOT) has been employed to derive spatial maps of physiologically important chromophores in the human breast, but the fidelity of these images is often compromised by boundary effects such as those due to the chest wall. We
Publikováno v:
Physical Review A. 76
We propose that micrometer-sized atom traps can be created using the optical dipole force between the ends of two single-mode optical fibers carrying counterpropagating light beams of two different wavelengths from both fibers. The traps have a simpl
Autor:
Frank A. Moscatelli
Publikováno v:
American Journal of Physics. 54:52-54
The process of two‐photon excitation of atoms is explained by a simple conceptual model which takes into account virtual states of the atom as well as photon statistics. In addition to predicting the correct dependence of the two‐photon excitatio