Results 1 to 10 of about 5,344,290 (172)

Impact of CT Photon-Counting Virtual Monoenergetic Imaging on Visualization of Abdominal Arterial Vessels [PDF]

Diagnostics, 2023
Purpose: The novel photon-counting detector (PCD) technique acquires spectral data for virtual monoenergetic imaging (VMI) in every examination. The aim of this study was the evaluation of the impact of VMI of abdominal arterial vessels on quantitative ...
Daniel Dillinger, Daniel Overhoff, Christian Booz, Hanns L. Kaatsch, Joel Piechotka, Achim Hagen, Matthias F. Froelich, Thomas J. Vogl, Stephan Waldeck   +8 more
doaj   +7 more sources

Influence of beam hardening in dual-energy CT imaging: phantom study for iodine mapping, virtual monoenergetic imaging, and virtual non-contrast imaging [PDF]

European Radiology Experimental, 2021
In this study, we investigated the influence of beam hardening on the dual-energy computed tomography (DECT) values of iodine maps, virtual monoenergetic (VME) images, and virtual non-contrast (VNC) images.
Risa Kanatani, Takashi Shirasaka, Tsukasa Kojima, Toyoyuki Kato, Masateru Kawakubo   +4 more
doaj   +6 more sources

Virtual Monoenergetic CT Imaging via Deep Learning [PDF]

Patterns, 2020
Summary: Conventional single-spectrum computed tomography (CT) reconstructs a spectrally integrated attenuation image and reveals tissues morphology without any information about the elemental composition of the tissues.
Wenxiang Cong, Yan Xi, Paul Fitzgerald, Bruno De Man, Ge Wang   +4 more
doaj   +5 more sources

Virtual monoenergetic imaging predicting Ki-67 expression in lung cancer [PDF]

Scientific Reports, 2023
This study aimed to optimize slope and energy levels for evaluating Ki-67 expression in lung cancer using virtual monoenergetic imaging and compare the predictive efficiency of different energy spectrum slopes (λHU) for Ki-67.
Peipei Dou, Hengliang Zhao, Dan Zhong, Yingliang Hu, Bin Liu, Haiyan Zhang, Aihong Cao   +6 more
doaj   +4 more sources

Virtual monoenergetic micro-CT imaging in mice with artificial intelligence [PDF]

Scientific Reports, 2022
Micro cone-beam computed tomography (µCBCT) imaging is of utmost importance for carrying out extensive preclinical research in rodents. The imaging of animals is an essential step prior to preclinical precision irradiation, but also in the longitudinal ...
Brent van der Heyden, Stijn Roden, Rüveyda Dok, Sandra Nuyts, Edmond Sterpin   +4 more
doaj   +4 more sources

Virtual Monoenergetic Imaging of Lower Extremities Using Dual-Energy CT Angiography in Patients with Diabetes Mellitus [PDF]

Diagnostics, 2023
Background: Type 2 diabetes mellitus (DM) is the most common metabolic disorder in the world and an important risk factor for peripheral arterial disease (PAD). CT angiography represents the method of choice for the diagnosis, pre-operative planning, and
Giuseppe Mauro Bucolo, Tommaso D’Angelo, Ibrahim Yel, Vitali Koch, Leon D. Gruenewald, Ahmed E. Othman, Leona Soraja Alizadeh, Daniel P. Overhoff, Stephan Waldeck, Simon S. Martin, Silvio Mazziotti, Giorgio Ascenti, Alfredo Blandino, Thomas J. Vogl, Christian Booz   +14 more
doaj   +4 more sources

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

Cancers (Basel)
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).
Sauer ST, Huflage H, Christner SA, Patzer TS, Kiesel M, Quenzer A, Kunz AS, Bley TA, Grunz JP.   +8 more
europepmc   +4 more sources

Imaging Findings of Peripheral Arterial Disease on Lower-Extremity CT Angiography Using a Virtual Monoenergetic Imaging Algorithm [PDF]

대한영상의학회지, 2022
Peripheral arterial disease (PAD) is common in elderly patients. Lower-extremity CT angiography (LE-CTA) can be useful for detecting PAD and planning its treatment.
Jun Seong Kim, So Hyun Park, Suyoung Park, Jung Han Hwang, Jeong Ho Kim, Seong Yong Park, Kihyun Lee, Bernhard Schmidt   +7 more
doaj   +4 more sources

Virtual monoenergetic imaging in photon-counting CT of the head and neck. [PDF]

Clin Imaging, 2023
Advantages of virtual monoenergetic images (VMI) have been reported for dual energy CT of the head and neck, and more recently VMIs derived from photon-counting (PCCT) angiography of the head and neck. We report image quality metrics of VMI in a PCCT angiography dataset, expanding the anatomical regions evaluated and extending observer-based ...
Farhadi F, Sahbaee P, Rajagopal JR, Nikpanah M, Saboury B, Gutjahr R, Biassou NM, Shah R, Flohr TG, Samei E, Pritchard WF, Malayeri AA, Bluemke DA, Jones EC.   +13 more
europepmc   +3 more sources

Reducing contrast dose using virtual monoenergetic imaging for aortic CTA. [PDF]

J Appl Clin Med Phys, 2020
AbstractThree‐dimensional computed tomographic angiography (3D‐CTA) is widely used to evaluate the inner diameters of vessels and the anatomical vascular structure prior to endoscopic aortic surgery or transcatheter valve implantation. Virtual monoenergetic imaging (VMI) is a new application in dual‐energy CT (DECT).
Yoshida R, Usui K, Katsunuma Y, Honda H, Hatakeyama K.   +4 more
europepmc   +4 more sources