Results 81 to 90 of about 6,942,219 (182)

Virtual monoenergetic images from spectral detector computed tomography facilitate washout assessment in arterially hyper-enhancing liver lesions

, 2020
Objectives!#!To investigate whether the increased soft tissue contrast of virtual monoenergetic images (VMIs) obtained from a spectral detector computed tomography (SDCT) system improves washout assessment of arterially hyper-enhancing liver lesions ...
Fehrmann Efferoth, A., Reimer, Robert, Zopfs, D., Krauskopf, A., Kröger, J. R., Maintz, D., Große Hokamp, N., Bunck, A. C., Persigehl, T.   +8 more
core   +1 more source

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

Preliminary Experience with Virtual Monoenergetic Imaging and Iodine Mapping in the Primary Staging of Endometrial Cancer

Cancers
This study investigated whether virtual monoenergetic images (VMIs) and iodine mapping based on dual-energy CT (DECT) provide advantages in the assessment of endometrial cancer. A dual-source DECT was performed for primary staging of histologically proven endometrioid adenocarcinoma in 21 women (66.8 ± 12.0 years).
Stephanie Tina Sauer, Henner Huflage, Sara Aniki Christner, Theresa Sophie Patzer, Matthias Kiesel, Anne Quenzer, Andreas Steven Kunz, Thorsten Alexander Bley, Jan-Peter Grunz   +8 more
openaire   +2 more sources

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 in Oncologic Imaging

Tomography
Dual-energy CT (DECT) is an innovative technology that is increasingly widespread in clinical practice. DECT allows for tissue characterization beyond that of conventional CT as imaging is performed using different energy spectra that can help ...
Giovanni Foti, Giorgio Ascenti, Andrea Agostini, Chiara Longo, Fabio Lombardo, Alessandro Inno, Alessandra Modena, Stefania Gori   +7 more
doaj   +1 more source

Improved visualization of hypodense liver lesions in virtual monoenergetic images from spectral detector CT: Proof of concept in a 3D-printed phantom and evaluation in 74 patients. [PDF]

, 2018
OBJECTIVES The well-known boost of iodine associated-attenuation in low-keV virtual monoenergetic images (VMI_low) is frequently used to improve visualization of lesions and structures taking up contrast media.
Obmann, Verena Carola, Laukamp, K R, Persigehl, T, Haneder, S, Kessner, R, Große Hokamp, N, Ramaiya, N   +6 more
core   +1 more source

CNR_ratio in monoenergetic images.

, 2015
CNRratio in monoenergetic images.
Je Sung You (501935), Song-Ee Baek (774480), Hye-Jeong Lee (467748), Joon Seok Lim (764072), Hye Sun Lee (501936), Yong Eun Chung (420684), Myeong-Jin Kim (420685)   +6 more
core   +1 more source

The Value of Virtual Monoenergetic Computed Tomography Angiography with Dual-layer Detector Spectral Computed Tomography for Imaging Cerebral Vessels

CT Lilun yu yingyong yanjiu
Objective: This study aimed to investigate the application value of virtual monoenergetic (VMI) (≤70 keV) computed tomography angiography (CTA) in imaging small cerebral vessels with dual-layer detector spectral CT.
Wen LI, Zhiwei ZHANG, Ziyu ZUO, Chengxin WAN, Yu TANG, Yajing YANG   +5 more
doaj   +1 more source

Optimization of dental implant imaging using photon-counting detector computed tomography in oral and maxillofacial surgery: an ex vivo study

European Radiology Experimental
Objective To determine optimal reconstruction parameters for dental implant imaging using photon-counting detector CT (PCD-CT), including ultra-high-resolution (UHR) images, virtual monoenergetic images (VMI), and iterative metal artifact reduction (iMAR)
Adib Al-Haj Husain, Tristan T. Demmert, Konstantin Klambauer, Philipp Maintz, Thomas Flohr, Harald Essig, Maximilian Eberhard Hermann Wagner, Sameena Sandhu, Egon Burian, Bernd Stadlinger, Hatem Alkadhi, Victor Mergen   +11 more
doaj   +1 more source