Results 11 to 20 of about 935,562 (336)

Validation of a Length-Adjusted Abdominal Arterial Calcium Score Method for Contrast-Enhanced CT Scans

Diagnostics, 2023
Background: The Agatston score on noncontrast computed tomography (CT) scans is the gold standard for calcium load determination. However, contrast-enhanced CT is commonly used for patients with atherosclerotic cardiovascular diseases (ASCVDs), such as ...
Raul Devia-Rodriguez, Maikel Derksen, Kristian de Groot, Issi R. Vedder, Clark J. Zeebregts, Reinoud P. H. Bokkers, Robert A. Pol, Jean-Paul P. M. de Vries, Richte C. L. Schuurmann   +8 more
doaj   +1 more source

Is There Still a Role for Two-Phase Contrast-Enhanced CT and Virtual Monoenergetic Images in the Era of Photon-Counting Detector CT?

Diagnostics, 2023
Background: To compare the diagnostic characteristics between arterial phase imaging versus portal venous phase imaging, applying polychromatic T3D images and low keV virtual monochromatic images using a 1st generation photon-counting CT detector, of CT ...
Arne Estler, Konstantin Nikolaou, Stefan O. Schönberg, Fabian Bamberg, Matthias F. Froelich, Fabian Tollens, Niklas Verloh, Jakob Weiss, Marius Horger, Florian Hagen   +9 more
doaj   +1 more source

Generation of Virtual Non-Contrast CT From Intravenous Enhanced CT in Radiotherapy Using Convolutional Neural Networks

Frontiers in Oncology, 2020
Objective: To generate virtual non-contrast (VNC) computed tomography (CT) from intravenous enhanced CT through convolutional neural networks (CNN) and compare calculated dose among enhanced CT, VNC, and real non-contrast scanning.Method: 50 patients who
Gao Liugang, Gao Liugang, Xie Kai, Xie Kai, Li Chunying, Li Chunying, Lu Zhengda, Lu Zhengda, Lu Zhengda, Sui Jianfeng, Sui Jianfeng, Lin Tao, Lin Tao, Ni Xinye, Ni Xinye, Dai Jianrong   +15 more
doaj   +1 more source

Diagnostic value of [18F]FDG PET/MRI for staging in patients with ovarian cancer

EJNMMI Research, 2020
Purpose To evaluate the diagnostic potential of PET/MRI with 2-[18F]fluoro-2-deoxy-d-glucose ([18F]FDG) in ovarian cancer. Materials and methods Participants comprised 103 patients with suspected ovarian cancer underwent pretreatment [18F]FDG PET/MRI ...
Hideaki Tsuyoshi, Tetsuya Tsujikawa, Shizuka Yamada, Hidehiko Okazawa, Yoshio Yoshida   +4 more
doaj   +1 more source

Non-rigid registration of liver ct images for ct-guided ablation of liver tumors [PDF]

, 2016
CT-guided percutaneous ablation for liver cancer treatment is a relevant technique for patients not eligible for surgery and with tumors that are inconspicuous on US imaging.
Klink, C. (Camiel), Luu, H.M. (Ha Manh), Moelker, A. (Adriaan), Niessen, W.J. (Wiro), Walsum, T.W. (Theo) van   +4 more
core   +10 more sources

Is contrast-enhanced US alternative to spiral CT in the assessment of treatment outcome of radiofrequency ablation in hepatocellular carcinoma? [PDF]

, 2009
Purpose: The present study was conducted to assess the efficacy of contrast-enhanced ultrasound with low mechanical index in evaluating the response of percutaneous radiofrequency ablation treatment of hepatocellular carcinoma by comparing it with 4-row ...
BEZZI, Mario, CALLIADA F, CANTISANI V, D'AMBROSIO, UGO, D'ANDREA, Vito, DRUDI, Francesco Maria, ERTURK SM, MELONI F, PAGLIARA E, PASSARIELLO, Roberto, RICCI, Paolo   +10 more
core   +1 more source

Does addition of a diagnostic contrast-enhanced CT to a contemporaneous PET/CT provide incremental value in patients for restaging of colorectal carcinoma?

European Journal of Hybrid Imaging, 2018
Background Both constrast-enhanced computed tomography (ceCT) and 18F-Fluorodeoxyglucose positron emission tomography (PET) are widely used for evaluation of colorectal cancer.
Kenneth S. K. Yap, Ojas H. Mehta, Wing Fai Eddie Lau, Tim Akhurst, Satish Warrier, Alexander Heriot, Rodney J. Hicks   +6 more
doaj   +1 more source

Non recurrent laryngeal nerve with right aberrant subclavian artery in recurrent case of papillary carcinoma of thyroid: an interesting clinical entity. [PDF]

, 2013
Background/objectives: A nonrecurrent laryngeal nerve is a rare anatomical variant and a routine preoperative imaging studies are not indicated. NRLN is related with absence of the brachiocephalic trunk and aberrant (mainly retroesophageal) course of ...
Chavan, Purshottam, Gupta, Sumit, Halkud, Rajshekar, Naik, Sudhir M, Shenoy, Ashok M, zameer, Latif   +5 more
core   +2 more sources

Temporal subtraction contrast-enhanced dedicated breast CT [PDF]

Physics in Medicine and Biology, 2016
The development of a framework of deformable image registration and segmentation for the purpose of temporal subtraction contrast-enhanced breast CT is described. An iterative histogram-based two-means clustering method was used for the segmentation.
Gazi, Peymon M, Aminololama-Shakeri, Shadi, Yang, Kai, Boone, John M   +3 more
openaire   +4 more sources

Computed tomographic imaging characteristics of the normal canine lacrimal glands. [PDF]

, 2014
BackgroundThe canine lacrimal gland (LG) and accessory lacrimal gland of the third eyelid (TEG) are responsible for production of the aqueous portion of the precorneal tear film.
Murphy, Christopher J, Park, Shin A, Zwingenberger, Allison L   +2 more
core   +2 more sources