Results 81 to 90 of about 5,344,290 (172)

Assessment of metal artifacts from titanium wrist prostheses: photon-counting versus energy-integrating detector CT

European Radiology Experimental
Background We compared photon-counting detector computed tomography (PCD-CT) polyenergetic images, PCD-CT virtual monoenergetic images (VMI), and energy-integrating detector computed tomography (EID-CT) polyenergetic images regarding bone visualization ...
Nina Kämmerling, Simon Farnebo, Mårten Sandstedt, Ronald Booij, Anders Persson, Erik Tesselaar   +5 more
doaj   +1 more source

Fast, automated optimization of virtual monoenergetic images with the dual‐energy image synthesizer for cone‐beam CT

Journal of Applied Clinical Medical Physics
AbstractBackgroundDual‐energy cone‐beam CT (DE‐CBCT) has become subject of recent interest due to the ability to produce virtual monoenergetic images (VMIs) with improved soft‐tissue contrast and reduced nonuniformity artifacts. However, efficient production and optimization of VMIs remains an under‐explored part of DE‐CBCT's application.PurposeThis ...
Andrew Keeler, Jason Luce, Mathias Lehmann, John C. Roeske, Hyejoo Kang   +4 more
openaire   +2 more sources

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 window settings for standard and advanced virtual monoenergetic imaging in abdominal dual-energy CT angiography

, 2017
Objectives: To determine the optimal window setting for displaying virtual monoenergetic reconstructions of third generation dual-source, dual-energy CT (DECT) angiography of the abdomen. Methods: Forty-five patients were evaluated with DECT angiography (
Ball, B. Devon, CARUSO, DAMIANO, Wichmann, Julian L., DE CECCO, CARLO NICOLA, DE SANTIS, DOMENICO, LAGHI, ANDREA, Schoepf, U. Joseph, Mangold, Stefanie, Stroebel, Maxwell H., Varga Szemes, Akos, Parinella, Ashley H.   +10 more
core   +1 more source

Creating a Foundation for the Visualization of Intracranial Cerebrospinal Fluid Using Photon-Counting Technology in Spectral Imaging for Cranial CT

Diagnostics
Background: Recent advancements in computed tomography (CT), notably in photon-counting CT (PCCT), are revolutionizing the medical imaging field. PCCT’s spectral imaging can better visualize tissues based on their material properties.
Anna Klempka, Philipp Neumayer, Alexander Schröder, Eduardo Ackermann, Svetlana Hetjens, Sven Clausen, Christoph Groden   +6 more
doaj   +1 more source

Supplemental Material - Imaging of hypodense gliotic lesions in photon counting computed tomography using virtual monoenergetic images

Supplemental Material for imaging of hypodense gliotic lesions in photon counting computed tomography using virtual monoenergetic images by Denise Schoenbeck, Alexander Sacha, Julius Henning Niehoff, Christoph Moenninghoff, Jan Borggrefe, Jan Robert ...
Jan Robert Kroeger (5316179), Denise Schoenbeck (18169726), Jan Borggrefe (357652), Christoph Moenninghoff (707507), Julius Henning Niehoff (18169732), Alexander Sacha (18169729), Arwed Elias Michael (18169735)   +6 more
core   +1 more source

A Narrative Review of Photon-Counting CT and Radiomics in Cardiothoracic Imaging: A Promising Match?

Diagnostics
Photon-counting computed tomography (PCCT) represents a major technological innovation compared to conventional CT, offering improved spatial resolution, reduced electronic noise, and intrinsic spectral capabilities.
Salvatore Claudio Fanni, Ilaria Ambrosini, Francesca Pia Caputo, Maria Emanuela Cuibari, Domitilla Deri, Alessio Guarracino, Camilla Guidi, Vincenzo Uggenti, Giancarlo Varanini, Emanuele Neri, Dania Cioni, Mariano Scaglione, Salvatore Masala   +12 more
doaj   +1 more source

COMPREHENSIVE ASSESSMENT OF VIRTUAL MONOENERGETIC IMAGING FOR CORONARY COMPUTED TOMOGRAPHY ANGIOGRAPHY

, 2022
Coronary computed tomography angiography (CCTA) is a technique that allows for a non-invasive evaluation of anatomy, structure and function of the heart, as well and of coronary arterial patency. It consists of a contrast-enhanced computed tomography of the thorax, which is synchronized with the patient's electrocardiographic activity that permits to ...
openaire   +1 more source

Generation of virtual monoenergetic images at 40 keV of the upper abdomen and image quality evaluation based on generative adversarial networks

BMC Medical Imaging
Background Abdominal CT scans are vital for diagnosing abdominal diseases but have limitations in tissue analysis and soft tissue detection. Dual-energy CT (DECT) can improve these issues by offering low keV virtual monoenergetic images (VMI), enhancing ...
Hua Zhong, Qianwen Huang, Xiaoli Zheng, Yong Wang, Yanan Qian, Xingbiao Chen, Jinan Wang, Shaoyin Duan   +7 more
doaj   +1 more source

The role of dual-energy CT virtual monoenergetic imaging in eliminating artifacts caused by metallic clips in early gastric cancer

Zhongguo Linchuang Yixue
ObjectiveTo evaluate the image quality of abdominal dual-energy CT virtual monoenergetic imaging (VMI) in patients with early gastric cancer using titanium alloy clips and assess its effectiveness on reducing metal artifacts. MethodsA retrospective study
Huanhuan LI, Zhuang LIU, Chao CHEN, Lili WANG, Yajia GU   +4 more
doaj   +1 more source