Results 71 to 80 of about 5,344,290 (172)

Gram‐Scale Synthesis of Hafnium‐Rich Carbon Dots for Preclinical Computed Tomography Imaging Across Various Systems

Advanced Science, Volume 13, Issue 17, 23 March 2026.
Hafnium (Hf)‐rich carbon dots (Hf‐rCDs) with high metal content (40.7%) and robust batch production capacity (>2 g per batch) are synthesized via a facile air‐assisted pyrolysis method. In vivo CT imaging demonstrates outstanding performance of Hf‐rCDs across multiple physiological systems and enables high‐resolution visualization of swine cervical ...
Shuo Li, Hengrui Wu, Jianqi Deng, Qiyu Sun, Yuping Zhang, Cai Zhang, Jinbin Pan, Dingbin Liu, Xuejun Zhang, Quan Zou, Xiaoyuan Chen, Shao‐Kai Sun   +11 more
wiley   +1 more source

Experience with the Jungfrau‐1M detector at Diamond Light Source

Journal of Synchrotron Radiation, Volume 33, Issue 2, Page 331-343, March 2026.
A Jungfrau‐1M integrating detector was characterized at Diamond Light Source and found to be effective for recording macromolecular crystallography diffraction patterns. Parameters for operation and data collection were explored and characterized. The Diamond facility will be upgraded and integrating detectors, such as Jungfrau, will be used more ...
John Matheson, Danny Axford, Anna Bergamaschi, Maria Carulla, Nicholas Devenish, Noemi Frisina, Viktoria Hinger, Vadym Kedych, Christopher Lane, Aldo Mozzanica, Eva Gimenez-Navarro, James O'Hea, Dominic Oram, Robin L. Owen, David Perl, Adam Prescott, Bernd Schmitt, Shane Scully, Adam Taylor, Gary Yendell, Graeme Winter   +20 more
wiley   +1 more source

Role of Virtual Monoenergetic Images in the Assessment of Vessel Enhancement in Segmental Level in Third-Generation Dual-Source Dual-Energy CT Pulmonary Angiography—A Prospective Study

Indian Journal of Radiology and Imaging
Introduction Pulmonary embolism is the third most common cause of cardiovascular death worldwide and imaging plays a pivotal role in establishing the diagnosis.
Vijayakumaran Ethiraju, Rajeshkumar Varatharajaperumal, Venkatesh Kasi Arunachalam, Abdulla KuruVambath, Rajesh Shanmugam Punniyakotti, Sriman Rajasekaran, Pankaj Mehta, Mathew Cherian   +7 more
doaj   +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

Relative and normalized iodine concentrations derived from photon counting computed tomography and their correlation with tumor grade and Ki67 in pancreatic neuroendocrine neoplasia: A pilot study

Journal of Neuroendocrinology, Volume 38, Issue 2, February 2026.
Abstract Neuroendocrine neoplasms are a rare and complex tumor entity, among which pancreatic neuroendocrine neoplasms generally display a more aggressive behavior. Despite a notable stage migration towards lower stages at initial diagnosis, the incidence of pancreatic neuroendocrine neoplasms is rising.
Marwin‐Jonathan Sähn, Simon Waltermann, Jonas Ottemöller, Raihanatou Diallo‐Danebrock, Julius Henning Niehoff, Marcel Bähr, Berthold Gerdes, Jan Borggrefe, Nehara Begum, Alexey Surov   +9 more
wiley   +1 more source

Dual-Energy CT for the Detection of Portal Vein Thrombosis: Improved Diagnostic Performance Using Virtual Monoenergetic Reconstructions

, 2022
Purpose: To investigate the diagnostic performance of noise-optimized virtual monoenergetic images (VMI+) in dual-energy CT (DECT) of portal vein thrombosis (PVT) compared to standard reconstructions.
Czwikla, Rouben, Lenga, Lukas, Wichmann, Julian L., Wichmann, Julian, Yel, Ibrahim, Rouben Czwikla, Julian L. Wichmann, Lukas Lenga, Vitali Koch, Albrecht, Moritz H., Zachary M. Thompson, Thompson, Zachary M., Leon D. Gruenewald, Jetlir Kolaneci, Booz, Christian, Christian Booz, Ibrahim Yel, Kolaneci, Jetlir, Martin, Simon S., Thomas J. Vogl, Simon S. Martin, Moritz H. Albrecht, Albrecht, Moritz Hans Ernst, Gruenewald, Leon D., Grünewald, Leon David, Koch, Vitali, Vogl, Thomas J., Martin, Simon   +27 more
core   +1 more source

3D Panoramic Imaging for Virtual Environment Construction [PDF]

The project is concerned with the development of algorithms for the creation of photo-realistic 3D virtual environments, overcoming problems in mosaicing, colour and lighting changes, correspondence search speed and correspondence errors due to lack of ...
Gledhill, Duke
core   +4 more sources

Utility of Dual-Energy Computed Tomography in Clinical Conundra

Diagnostics
Advancing medical technology revolutionizes our ability to diagnose various disease processes. Conventional Single-Energy Computed Tomography (SECT) has multiple inherent limitations for providing definite diagnoses in certain clinical contexts.
Ahmad Abu-Omar, Nicolas Murray, Ismail T. Ali, Faisal Khosa, Sarah Barrett, Adnan Sheikh, Savvas Nicolaou, Stefania Tamburrini, Francesca Iacobellis, Giacomo Sica, Vincenza Granata, Luca Saba, Salvatore Masala, Mariano Scaglione   +13 more
doaj   +1 more source

Verification of the Dose Reduction Effect via Diluted Injection in Dual-Energy Computed Tomography Using a Human Blood Flow Phantom

Radiology Research and Practice, 2019
Purpose. We sought to examine the possibility of reducing the contrast medium dosage in dual-energy imaging using a saline-mixed injection with a virtual monochromatic energy method of dual-source computed tomography (CT). Methods.
Hironobu Tomita, Koichi Shibata
doaj   +1 more source

Visually adaptive virtual sound imaging using loudspeakers

, 2008
Advances in computer technology and low cost cameras open up new possibilities for three dimensional (3D) sound reproduction. The problem is to update the audio signal processing scheme for a moving listener, so that the listener perceives only the ...
Mannerheim, P.V.H., Mannerheim, P V H
core   +1 more source