Results 21 to 30 of about 6,578,156 (324)

Principles of CT: Multislice CT [PDF]

open access: yesJournal of Nuclear Medicine Technology, 2008
This article describes the principles and evolution of multislice CT (MSCT), including conceptual differences associated with slice definition, cone beam effects, helical pitch, and helical scan technique. MSCT radiation dosimetry is described, and dose issues associated with MSCT-and with CT in general-as well as techniques for reducing patient ...
openaire   +2 more sources

Pictorial review of COVID-19 in the Lublin Region – Imaging disease progression with CXR and CT

open access: yesJournal of Pre-Clinical and Clinical Research, 2021
Introduction COVID-19 is a disease caused by SARS-Cov-2 that has reached the pandemic status and has infected in one year more than 62 million people. Clinical symptoms range from barely noticeable to very severe.
Ewa Kurys-Denis   +2 more
doaj   +1 more source

Ultrasonographic criteria for the major salivary glands: a perspective for the application of new technologies [PDF]

open access: yes, 2018
It emerges from the interesting recent article by David et al. (4) on high-resolution ultrasound is the first line examination for parotid gland diffuse disease and focal lesions, normally using grey-scale and color-Doppler ultrasound especially using
Messineo, Daniela
core   +1 more source

CT and MRI Findings of Multiple Infarcted Regenerative Nodules in Liver Cirrhosis after Variceal Hemorrhage

open access: yesCT Lilun yu yingyong yanjiu, 2023
Objective: To investigate the CT and MRI features of multiple infarcted regenerative nodules in cirrhosis after variceal hemorrhage. Methods: A total of 21 patients, including 13 males and 8 females, who were diagnosed with multiple infarction ...
Xiaoli XU, Tao ZHANG, Xueqin ZHANG
doaj   +1 more source

Chest CT manifestations of new coronavirus disease 2019 (COVID-19): a pictorial review

open access: yesEuropean Radiology, 2020
Coronavirus disease 2019 (COVID-19) outbreak, first reported in Wuhan, China, has rapidly swept around the world just within a month, causing global public health emergency. In diagnosis, chest computed tomography (CT) manifestations can supplement parts
Z. Ye   +4 more
semanticscholar   +1 more source

Low-Dose CT With a Residual Encoder-Decoder Convolutional Neural Network [PDF]

open access: yesIEEE Transactions on Medical Imaging, 2017
Given the potential risk of X-ray radiation to the patient, low-dose CT has attracted a considerable interest in the medical imaging field. Currently, the main stream low-dose CT methods include vendor-specific sinogram domain filtration and iterative ...
Hu Chen   +7 more
semanticscholar   +1 more source

An Automatic Approach for Bone Tumor Detection from Non-Standard CT Images

open access: yesIngeniería e Investigación, 2023
Image processing techniques are applied in many fields of science. This study aims to detect tumors in the foot and create 3D models via computed tomography (CT), as well as to produce biometric data. 1 039 CT images were obtained from a server.
Hatice Catal Reis, Bulent Bayram
doaj   +1 more source

Clinical Persistence of Chlamydia trachomatis Sexually Transmitted Strains Involves Novel Mutations in the Functional αββα Tetramer of the Tryptophan Synthase Operon. [PDF]

open access: yes, 2019
Clinical persistence of Chlamydia trachomatis (Ct) sexually transmitted infections (STIs) is a major public health concern. In vitro persistence is known to develop through interferon gamma (IFN-γ) induction of indoleamine 2,3-dioxygenase (IDO), which ...
Dean, Deborah   +4 more
core   +1 more source

To Explore the Low-dose CT and QCT “One-stop-shop”Scan Technology for Physical Examination Crowd

open access: yesCT Lilun yu yingyong yanjiu, 2022
Objective: To explore the application of noise index combined with automatic tube current regulation technology in the one-stop scanning of chest and lumbar QCT physical examination.
Yi SHU   +4 more
doaj   +1 more source

A whole-body FDG-PET/CT Dataset with manually annotated Tumor Lesions

open access: yesScientific Data, 2022
We describe a publicly available dataset of annotated Positron Emission Tomography/Computed Tomography (PET/CT) studies. 1014 whole body Fluorodeoxyglucose (FDG)-PET/CT datasets (501 studies of patients with malignant lymphoma, melanoma and non small ...
S. Gatidis   +9 more
semanticscholar   +1 more source

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