Zobrazeno 1 - 10
of 10 390
pro vyhledávání: '"Anastasio A."'
Quantitative photoacoustic computed tomography (qPACT) is an emerging medical imaging modality that carries the promise of high-contrast, fine-resolution imaging of clinically relevant quantities like hemoglobin concentration and blood-oxygen saturat
Externí odkaz:
http://arxiv.org/abs/2410.09557
Autor:
Lin, Youzuo, Feng, Shihang, Theiler, James, Chen, Yinpeng, Villa, Umberto, Rao, Jing, Greenhall, John, Pantea, Cristian, Anastasio, Mark A., Wohlberg, Brendt
Computational wave imaging (CWI) extracts hidden structure and physical properties of a volume of material by analyzing wave signals that traverse that volume. Applications include seismic exploration of the Earth's subsurface, acoustic imaging and n
Externí odkaz:
http://arxiv.org/abs/2410.08329
In photoacoustic computed tomography (PACT) the accurate estimation of the initial pressure (IP) distribution generally requires knowledge of the object's heterogeneous speed-of-sound (SOS) distribution. Although hybrid imagers that combine ultrasoun
Externí odkaz:
http://arxiv.org/abs/2410.04278
Autor:
Avachat, Ashish V., Mahmoud, Kholod H., Leja, Anthony G., Xu, Jiajie J., Anastasio, Mark A., Sivaguru, Mayandi, Di Fulvio, Angela
Publikováno v:
Scientific Reports 14.1 (2024): 21155
The objective of this work is to showcase the ortho-positronium lifetime as a probe for soft-tissue characterization. We employed positron annihilation lifetime spectroscopy to experimentally measure the three components of the positron annihilation
Externí odkaz:
http://arxiv.org/abs/2409.13102
Autor:
Zhang, Xiaohui, Landsness, Eric C, Brier, Lindsey M, Chen, Wei, Tang, Michelle J., Miao, Hanyang, Lee, Jin-Moo, Anastasio, Mark A., Culver, Joseph P.
Wide-field calcium imaging (WFCI) that records neural calcium dynamics allows for identification of functional brain networks (FBNs) in mice that express genetically encoded calcium indicators. Estimating FBNs from WFCI data is commonly achieved by u
Externí odkaz:
http://arxiv.org/abs/2405.19685
Purpose: Quantitative phase imaging (QPI) is a label-free technique that provides high-contrast images of tissues and cells without the use of chemicals or dyes. Accurate semantic segmentation of cells in QPI is essential for various biomedical appli
Externí odkaz:
http://arxiv.org/abs/2405.06175
Report on the AAPM Grand Challenge on deep generative modeling for learning medical image statistics
Autor:
Deshpande, Rucha, Kelkar, Varun A., Gotsis, Dimitrios, Kc, Prabhat, Zeng, Rongping, Myers, Kyle J., Brooks, Frank J., Anastasio, Mark A.
The findings of the 2023 AAPM Grand Challenge on Deep Generative Modeling for Learning Medical Image Statistics are reported in this Special Report. The goal of this challenge was to promote the development of deep generative models (DGMs) for medica
Externí odkaz:
http://arxiv.org/abs/2405.01822
Autor:
Fratangelo, Anastasio, Heil, Philipp, Klauser, Christine, Markaj, Gjon, Persoz, Marc, Pistillo, Ciro, Schulthess, Ivo, Thorne, Jacob, Piegsa, Florian M.
The novel technique of frequency-offset separated oscillatory fields (FOSOF) has been originally proposed as a modification to Ramsey's method of separated oscillatory fields. It has recently been employed in precision measurements with atomic beams
Externí odkaz:
http://arxiv.org/abs/2406.15388
Accurate spatiotemporal image reconstruction methods are needed for a wide range of biomedical research areas but face challenges due to data incompleteness and computational burden. Data incompleteness arises from the undersampling often required to
Externí odkaz:
http://arxiv.org/abs/2403.03860
The spherical Radon transform (SRT) is an integral transform that maps a function to its integrals over concentric spherical shells centered at specified sensor locations. It has several imaging applications, including synthetic aperture radar and ph
Externí odkaz:
http://arxiv.org/abs/2402.15641