Results 1 to 10 of about 1,251 (80)

Comparison of Image Quality and Radiation Dose Between Single-Energy and Dual-Energy Images for the Brain With Stereotactic Frames on Dual-Energy Cerebral CT

Frontiers in Radiology, 2022
BackgroundPreoperative stereotactic planning of deep brain stimulation (DBS) using computed tomography (CT) imaging in patients with Parkinson's disease (PD) is of clinical interest. However, frame-induced metal artifacts are common in clinical practice,
Xiaojing Zhao, Xiaojing Zhao, Wang Chao, Wang Chao, Yi Shan, Yi Shan, Jingkai Li, Jingkai Li, Cheng Zhao, Cheng Zhao, Miao Zhang, Miao Zhang, Jie Lu, Jie Lu   +13 more
doaj   +1 more source

True Non-Contrast Phase versus Virtual-Non Contrast: “Lights and Shadows” of Dual Energy CT Angiography in Peripheral Arterial Disease

Applied Sciences, 2023
(1) Background: The value of dual-energy CT angiography (DE-CTA) in the detection of peripheral arterial disease (PAD) has been widely recognized. We aim to evaluate the diagnostic accuracy of virtual non-contrast (VNC) imaging of DE-CTA compared to true
Chiara Floridi, Laura Maria Cacioppa, Giacomo Agliata, Michaela Cellina, Nicolo’ Rossini, Tommaso Valeri, Martina Curzi, Alessandro Felicioli, Alessandra Bruno, Marzia Rosati, Roberto Candelari, Andrea Giovagnoni   +11 more
doaj   +1 more source

Comparison of True and Virtual Non-Contrast Images of Liver Obtained with Single- Source Twin Beam and Dual-Source Dual-Energy CT

Journal of the Korean Society of Radiology, 2023
Purpose To assess the magnitude of differences between attenuation values of the true non-contrast image (TNC) and virtual non-contrast image (VNC) derived from twin-beam dual-energy CT (tbDECT) and dual-source DECT (dsDECT).
Jeong Sub Lee, Guk Myung Choi, Bong Soo Kim, Su Yeon Ko, Kyung Ryeol Lee, Jeong Jae Kim, Doo Ri Kim   +6 more
doaj   +1 more source

Improved Diagnostic Accuracy of Bone Metastasis Detection by Water-HAP Associated to Non-Contrast CT

Diagnostics, 2020
We examined whether water-hydroxyapatite (HAP) images improve the diagnostic accuracy of bone metastasis compared with non-contrast CT alone. We retrospectively evaluated dual-energy computed tomography (DECT) images of 83 cancer patients (bone ...
Yoshinobu Ishiwata, Yojiro Hieda, Soichiro Kaki, Shinjiro Aso, Keiichi Horie, Yusuke Kobayashi, Motoki Nakamura, Kazuhiko Yamada, Tsuneo Yamashiro, Daisuke Utsunomiya   +9 more
doaj   +1 more source

Effectiveness of Virtual Non-Enhanced Images Acquired by Dual-Energy Computed Tomography in Evaluation of Patients with Suspected Acute Appendicitis

대한영상의학회지, 2016
Purpose To determine whether virtual non-enhanced (VNE) images derived from dual-energy computed tomography (DECT) can replace true non-enhanced (TNE) images in patients with suspected acute appendicitis.
Taeyeong Heo, Young Hwan Lee, Kwon-Ha Yoon   +2 more
doaj   +1 more source

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

Image Quality and Lesion Detectability with Low-Monoenergetic Imaging: A Study of Low-Concentration Iodine Contrast in Hepatic Multiphase CT for Chronic Liver Disease

Tomography
Background: This study aimed to evaluate whether low-concentration iodine contrast-enhanced multiphase low-monoenergetic computed tomography (LCLM CT; 270 mg I/mL, 40 keV) is non-inferior to standard-dose computed tomography (SDCT; 350 mg I/mL) in image ...
Jae En Kim, Yewon Lim, Jin Sil Kim, Hyo Jeong Lee, Jeong Kyong Lee, Hye Ah Lee   +5 more
doaj   +1 more source

Evaluating the dual-energy iterative reconstruction algorithm (DIRA) for accurate CT number determination in DECT imaging. [PDF]

Radiat Prot Dosimetry
Magnusson M, Sandborg M, Carlsson Tedgren Å, Malusek A.   +3 more
europepmc   +1 more source

Quantitative determination of gadolinium and iodine contrast agents in dual-energy computed tomography via a dual-energy iterative reconstruction algorithm: a simulation study on multi-contrast imaging. [PDF]

Radiat Prot Dosimetry
Magnusson M, Sandborg M, Carlsson Tedgren Å, Malusek A.   +3 more
europepmc   +1 more source

Impact of dose allocation between high- and low-kV scans on virtual monoenergetic image quality in developmental dual-energy cone-beam CT for image-guided radiotherapy. [PDF]

J Appl Clin Med Phys
Keeler A, Layman L, Nguyen H, Luce J, Lehmann M, Roeske JC, Kang H.   +6 more
europepmc   +1 more source