Results 11 to 20 of about 362,940 (245)

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

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

Imaging Misdiagnosis Analysis of a Rare Case of Renal Subcapsular Hematoma Located in the Renal Hilum and Collecting Area

Urology Case Reports, 2014
We report a rare case of renal subcapsular hematoma, which was located in the renal hilum and collecting area. Preoperative ultrasonography, retrograde urethrography, and computed tomographic examinations misdiagnosed the patient with simple ...
Biqiang Li, Xianlong Huang, Xiaoming Wang, Xinyu Wang, Jian Yang   +4 more
doaj   +1 more source

Osteoblastic Metastases Mimickers on Contrast Enhanced CT

Case Reports in Radiology, 2017
Secondary osseous involvement in lymphoma is more common compared to primary bone lymphoma. The finding of osseous lesion can be incidentally discovered during the course of the disease. However, osseous metastases are infrequently silent.
Fahad Al-Lhedan, Sam Samaan, Wanzhen Zeng   +2 more
doaj   +1 more source

Negative effects of iodine-based contrast agent on renal function in patients with moderate reduced renal function hospitalized for COVID-19

BMC Nephrology, 2021
Background Kidney disease and renal failure are associated with hospital deaths in patients with COVID − 19. We aimed to test if contrast enhancement affects short-term renal function in hospitalized COVID − 19 patients.
Anna Kistner, Chen Tamm, Ann Mari Svensson, Mats O. Beckman, Fredrik Strand, Magnus Sköld, Sven Nyrén   +6 more
doaj   +1 more source

The feasibility of non-contrast enhanced plus contrast-enhanced computed tomography in discriminating invasive pure ground-glass opacity from pre-invasive pure ground-glass opacity

Journal of Cardiothoracic Surgery, 2020
Background Invasive pure ground-glass opacity and pre-invasive pure ground-glass opacity have different 5-year overall survival rate and risk of lymph node metastasis and the extent of resection.
Shanshan Li, Jinming Yu, Xue Meng, Lingfei Liu, Liang Xu, Liheng Liu, Haiying Yu, Yongsheng Gao, Zhen Zhang   +8 more
doaj   +1 more source

Focal Lesions of the Liver and Radiomics: What Do We Know?

Diagnostics, 2023
Despite differences in pathological analysis, focal liver lesions are not always distinguishable in contrast-enhanced magnetic resonance imaging (MRI), contrast-enhanced computed tomography (CT), and positron emission tomography (PET).
Matilde Anichini, Antonio Galluzzo, Ginevra Danti, Giulia Grazzini, Silvia Pradella, Francesca Treballi, Eleonora Bicci   +6 more
doaj   +1 more source

Castleman disease versus lymphoma in neck lymph nodes: a comparative study using contrast-enhanced CT

Cancer Imaging, 2018
Background The purpose of this study was to determine the contrast-enhanced CT characteristics for differentiating between Castleman disease (CD) and lymphoma in neck lymph nodes.
Jie Li, Jia Wang, Zhitao Yang, Hexiang Wang, Junyi Che, Wenjian Xu   +5 more
doaj   +1 more source

Contrast enhanced CT on PET/CT imaging in clinical routine: an international survey

Frontiers in Medicine, 2023
AimTo perform an international survey about PET/CT imaging with contrast enhanced CT (PET/ceCT) in clinical routine worldwide.MethodsA questionnaire of ten questions was prepared for health professionals, addressing the following issues: (1) general ...
Salvatore Annunziata, Nathalie Testart, Katharina Auf der Springe, Marco Cuzzocrea, Marie Nicod Lalonde, Marie Nicod Lalonde, Niklaus Schaefer, Niklaus Schaefer, John O. Prior, John O. Prior, Valentina Garibotto, Valentina Garibotto, Valentina Garibotto, Giorgio Treglia, Giorgio Treglia, Giorgio Treglia, Giorgio Treglia   +16 more
doaj   +1 more source