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Published on BioPortfolio: 2014-09-18T14:20:44-0400
Comparing two techniques (Subtraction and Dual Energy CT) for functional Chest CT for patients with suspected with pulmonary embolism.
A comparative, observational, cross-sectional and prolective diagnostic test study, including patients that have had a right heart catheterization and were referred for a CT pulmonary angi...
Exercise-induced increase of the pulmonary arterial pressure may be an early sign of pulmonary arterial hypertension. It has been shown that patients with normal pulmonary arterial pressur...
The aim of this study is to evaluate the hepatic perfusion computer tomography and dual energy computer tomography in the assessment of tumor characterization of Hepatocellular carcinoma i...
The early detection of pulmonary arterial hypertension may help to improve prognosis of the disease. It is assumed that in the early stages of pulmonary arterial hypertension, pulmonary ar...
Pulmonary embolism is the third most common acute cardiovascular disease. Dual-energy computed tomography perfusion imaging is a promising adjunct in the detection of acute PE providing simultaneous f...
Iodine uptake in the lungs and intrathoracic lesions on postcontrast dual-energy computed tomography is used for evaluation of pulmonary embolism-related perfusion defects and pulmonary infarctions. I...
The aim of the current study was to evaluate the reliability and comparability of virtual unenhanced (VUE) attenuation values derived from scans of a single-source, dual-energy computed tomography usi...
Formation mechanisms and treatment of the urinary stones are different, depending on their chemical structure. Therefore, determining the stone type plays a key role in planning treatment and preventi...
The role of decreased pulmonary arterial (PA) compliance (C), equivalent to increased PA stiffness (1/C) as a critical determinant of right ventricular dysfunction and prognosis has been emphasized in...
An imaging technique using a device which combines TOMOGRAPHY, EMISSION-COMPUTED, SINGLE-PHOTON and TOMOGRAPHY, X-RAY COMPUTED in the same session.
Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures.
Computed tomography modalities which use a cone or pyramid-shaped beam of radiation.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.