Results 61 to 70 of about 1,208,754 (253)

Gallbladder perforation in photon counting CT: A case report

Radiology Case Reports
A 74-year-old male presented to the emergency department with a 5-day history of abdominal pain and fever. Laboratory tests suggested infection and biliary obstruction.
Wenjing Li, BS, Song Luo, PhD
doaj   +1 more source

MATERIAL DECOMPOSITION USING A PHOTON COUNTING CT SYSTEM [PDF]

, 2015
The purpose of this research is to validate the availability of a material decomposition with a photon counting CT. We used a photon counting detector that was able to measure four energy bins.
松本 真梨子
core  

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

Quantitative dual contrast photon-counting computed tomography for assessment of articular cartilage health

Scientific Reports, 2021
Photon-counting detector computed tomography (PCD-CT) is a modern spectral imaging technique utilizing photon-counting detectors (PCDs). PCDs detect individual photons and classify them into fixed energy bins, thus enabling energy selective imaging ...
Petri Paakkari, Satu I. Inkinen, Miitu K. M. Honkanen, Mithilesh Prakash, Rubina Shaikh, Miika T. Nieminen, Mark W. Grinstaff, Janne T. A. Mäkelä, Juha Töyräs, Juuso T. J. Honkanen   +9 more
doaj   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

PHOTON-COUNTING CT & ADVANCED CT TECHNOLOGIES

Computed Tomography (CT) has undergone remarkable technological evolution since its clinical introduction in the 1970s. The advent of Photon-Counting Computed Tomography (PCCT) represents a fundamental paradigm shift in X-ray detection and image ...
Vikas Kumar, Piyush Yadav, Ritik Kumar Pathak, Archi   +3 more
core   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

Advanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green, Michael W. Jones, Merissa Saleem, Haobo Ge, Melita Tvardauskaite, Julia Dudzic, Fernando Cortezon‐Tamarit, Rory L. Arrowsmith, Charareh Pourzand, Gabriele Kociock‐Kohn, Nicholas H. Rees, Jonathan R. Dilworth, Stephen Faulkner, Stanley W. Botchway, David Gurevich, Sofia I. Pascu   +15 more
wiley   +1 more source

Photon-counting CT in liver disease： applications and advances [PDF]

Zhenduanxue lilun yu shijian
Photon-counting computed tomography (PCCT) represents a significant technological breakthrough in the field of CT imaging in recent years. This innovative technology utilizes novel semiconductor detectors to directly detect and count individual X-ray ...
LI Weixia, YAN Fuhua
doaj   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

ROI-Wise Material Decomposition in Spectral Photon-Counting CT

, 2020
International audienceSpectral photon-counting X-ray CT (sCT) opens up new possibilities for the quantitative measurement of materials in an object, compared to conventional energyintegrating CT or dual energy CT. However, achieving reliable and accurate
Boussel, Loic, Duvauchelle, Philippe, Xie, Bingqing, Niu, Pei, Kaftandjian, Valerie, Zhu, Yuemin, Su, Ting, Douek, Philippe, Yang, Feng, Zhu, Yue-Min   +9 more
core   +1 more source