Results 21 to 30 of about 7,263,931 (248)

Image Quality and Dose Comparison of Single-Energy CT (SECT) and Dual-Energy CT (DECT)

open access: yesRadiology Research and Practice, 2020
CT and its comprehensive usage have become one of the most indispensable components in medical field especially in the diagnosis of several diseases. SECT and DECT have developed CT diagnostic potentials in several means.
Ramin Ghasemi Shayan   +3 more
doaj   +1 more source

Fundamentals of dual-energy computed tomography and its emerging applications in bladder cancer [PDF]

open access: yesDigital Diagnostics
Nowadays, computed tomography urography and multiparametric magnetic resonance are the most often used imaging techniques in patients with bladder cancer; however, dual-energy computed tomography is making its way into the oncological field.
Federica Masino   +7 more
doaj   +1 more source

Traumatic bone marrow lesions in dual-energy computed tomography

open access: yesInsights into Imaging, 2022
Traumatic bone marrow lesions (TBMLs) are considered to represent a range of concealed bone injuries, including haemorrhage, infarction, and localised oedema caused by trabecular microfracture occurring in the cancellous bone.
Qiuping Ren   +4 more
doaj   +1 more source

Dosimetric comparison between single-energy computed tomography and dual-energy computed tomography relative to stopping power estimation in proton therapy

open access: yesJournal of Medical Physics, 2023
Purpose: The focus of this work was given on the relative stopping power (RSP) using the water equivalent thickness (WET) validation on tissue substitutes and real pig organs, as well as a dosimetric comparison of proton treatment plans between single ...
Thamonwan Chirdchid   +2 more
doaj   +1 more source

Optimizing the diagnosis and assessment of chronic thromboembolic pulmonary hypertension with advancing imaging modalities

open access: yesPulmonary Circulation, 2021
Imaging is key to nearly all aspects of chronic thromboembolic pulmonary hypertension including management for screening, assessing eligibility for pulmonary endarterectomy, and post-operative follow-up. While ventilation/perfusion scintigraphy, the gold
Seth Kligerman, Albert Hsiao
doaj   +1 more source

Diagnosis of Pulmonary Embolism in Unenhanced Dual Energy CT Using an Electron Density Image

open access: yesDiagnostics, 2021
Dual-energy computed tomography (CT) is a promising tool, providing both anatomical information and material properties. Using spectral information such as iodine mapping and virtual monoenergetic reconstruction, dual-energy CT showed added value over ...
Kyungsoo Bae, Kyung-Nyeo Jeon
doaj   +1 more source

An experimental survey of metal artefact reduction in computed tomography [PDF]

open access: yes, 2013
We present a survey of techniques for the reduction of streaking artefacts caused by metallic objects in X-ray Computed Tomography (CT) images. A comprehensive review of the existing state-of- the-art Metal Artefact Reduction (MAR) techniques, drawn ...
Van Slambrouck, Katrien   +9 more
core   +1 more source

Computed tomography-osteoabsorptiometry for assessing the density distribution of subchondral bone as a measure of long-term mechanical adaptation in individual joints [PDF]

open access: yes, 1989
To estimate subchondral mineralisation patterns which represent the long-term loading history of individual joints, a method has been developed employing computed tomography (CT) which permits repeated examination of living joints.
Müller-Gerbl, Magdalena   +4 more
core   +1 more source

Comparison of Dual-Energy Computed Tomography Pulmonary Angiography-Derived Contrast Enhancement with Standard Dual-Energy Pulmonary Angiography in Diagnosing Subsegmental Pulmonary Embolism: A Prospective Study

open access: yesIndian Journal of Radiology and Imaging, 2023
Objective In this study, we compare the diagnostic accuracy of dual-energy (DE) computed tomography pulmonary angiography (CTPA) derived contrast enhancement (DECTPA, CTPA images with iodine maps) with standard dual-energy pulmonary ...
Vivek Yadav   +5 more
doaj   +1 more source

Role of peripheral quantitative computed tomography in identifying disuse osteoporosis in paraplegia [PDF]

open access: yes, 2009
Objective: Disuse osteoporosis is a major long-term health consequence of spinal cord injury (SCI) that still needs to be addressed. Its management in SCI should begin with accurate diagnosis, followed by targeted treatments in the most vulnerable ...
Coupaud, Sylvie   +5 more
core   +1 more source

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