Results 51 to 60 of about 1,099 (177)

A Scoping Review Protocol of Lung Ultrasound in Pediatric COVID‐19: Clinical Utility and Lessons for Future Pandemics

Health Science Reports, Volume 9, Issue 4, April 2026.
ABSTRACT Background and Aims Lung ultrasound (LUS) is an ultrasound‐based procedure used to evaluate thoracic structures, including the pleura and lung parenchyma. It has become an increasingly important tool for diagnosing and monitoring respiratory diseases, including in pediatric populations.
Yusuf Syaeful Nawawi, Anistyaning Wahyu Adhie   +1 more
wiley   +1 more source

Advancing Forest Structure Retrieval through Multi-Frequency PolInSAR and TomoSAR: Leveraging ESA’s P-Band Biomass and NASA–ISRO NISAR Missions [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Accurate estimation of forest structural parameters, particularly canopy height and aboveground biomass (AGB), is essential for carbon accounting, biodiversity conservation, and climate change mitigation under frameworks such as the UNFCCC and REDD ...
S. Kumar
doaj   +1 more source

Theoretical Analysis and Applications of Tomographic SAR Imaging

TELKOMNIKA (Telecommunication Computing Electronics and Control), 2016
Tomographic Synthetic Aperture Radar extends the traditional 2D SAR imaging to multi dimension imaging by reconstructing the real scene of SAR sensor on the ground. It is very important to realize the 3D mapping of urban areas, the identification of artificial targets and so on.
Liu Hui, Wu Jianjiang, Li Ling, Li Zhizhe   +3 more
openaire   +2 more sources

Deep Vein Thrombosis in Critically Ill Patients With COVID‐19 Pneumonia

Journal of Ultrasound in Medicine, Volume 45, Issue 1, Page 155-170, January 2026.
Objectives The risk of major venous thromboembolism (VTE) among patients with COVID‐19 is high but varies with disease severity. Estimate the incidence of lower extremity deep venous thrombosis (DVT) in critically ill hospitalized patients with COVID‐19, validate the Wells score for DVT diagnosis, and determine patients' prognosis.
Clévio Cezar da Fonseca, Hugo Perazzo, Sandra Wagner Cardoso, Isabel Cristina Ferreira Tavares, Maria Pia Diniz Ribeiro, Rodrigo de Carvalho Moreira, Lara Esteves Coelho, Emília Moreira Jalil, André Miguel Japiassú, Elias Pimentel Gouvêa, Estevão Portela Nunes, Hugo Boechat Andrade, Luciano Barros Gouvêa, Marcel Treptow Ferreira, Pedro Mendes Azambuja‐Rodrigues, Ronaldo Ismerio Moreira, Kim Mattos Geraldo, Lucilene Araújo de Freitas, Vinicius Velleda Pacheco, Beatriz Gilda Jegerhorn Grinsztein, Pedro Emmanuel Alvarenga Americano do Brasil   +20 more
wiley   +1 more source

High‐Fidelity 3D Reconstruction From Sparse Multi‐Baseline CSAR Data via Conditional Diffusion Models

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This work proposes a conditional diffusion model framework for high‐fidelity 3D reconstruction from sparse multibaseline circular synthetic aperture radar (CSAR) data, addressing challenges of low vertical resolution, geometric blur and artefacts. The method integrates a dual‐path 3D U‐Net with cross‐attention to fuse coarse reconstruction features ...
Xingyu Zhao, Yanheng Ma, Bingxuan Li, Lina Chu, Wei Li   +4 more
wiley   +1 more source

Tomographic Imaging and Monitoring of Buildings With Very High Resolution SAR Data [PDF]

IEEE Geoscience and Remote Sensing Letters, 2011
Layover is frequent in imaging and monitoring with synthetic aperture radar (SAR) areas characterized by a high density of scatterers with steep topography, e. g., in urban environment. Using medium-resolution SAR data tomographic techniques has been proven to be capable of separating multiple scatterers interfering (in layover) in the same pixel. With
Diego Reale, Gianfranco Fornaro, Antonio Pauciullo, Xiaoxiang Zhu 0001, Richard Bamler   +4 more
openaire   +4 more sources

Current Developments of Sparse Microwave Imaging

Leida xuebao, 2014
The sparse microwave imaging combines the sparse signal processing theory with radar imaging to obtain new theory, new system, and new methodology of microwave imaging.
Wu Yi-rong, Hong Wen, Zhang Bing-chen, Jiang Cheng-long, Zhang Zhe, Zhao Yao   +5 more
doaj   +1 more source

Multi‐Angle Bistatic Scattering Characteristics of Ground Targets Observed by GB‐SAR Experiment

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper presents an experimental investigation of bistatic scattering characteristics using an outdoor ground‐based SAR system working in Ku‐band. Representative artificial and natural targets were measured and analysed to characterise their angular bistatic scattering responses and underlying scattering mechanisms.
Hoonyol Lee
wiley   +1 more source

Minimum-Redundancy Multimaster TomoSAR Framework for UAV-SAR 3-D Imaging

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) is a microwave imaging technology that can work all day and in all weather. It can conduct multiple observations at different spatial locations and realize 3-D imaging through the tomographic ...
Jian Zhao, Zegang Ding, Zhen Wang, Tao Sun, Yuhan Wang, Jingfan Lu, Linghao Li, Han Li   +7 more
doaj   +1 more source

Traditional Techniques and Modern Microwave Antenna Designs for Breast Cancer Detection: A Comprehensive Review

International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
Microwave breast imaging has become a significant area of research due to the high incidence of breast cancer in women and the limitations of conventional detection methods. In recent years, this field has gained momentum as it offers improved detection rates and several advantages like it is nonionizing and safe, cost‐effective, portable and flexible,
Chinmoy Das, Mostafa Zaman Chowdhury, Liton Chandra Paul   +2 more
wiley   +1 more source