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Dual energy cardiac computed tomography
(Edizioni Minerva Medica, 2017-06)
Conventional single energy CT suffers from technical limitations related to the polychromatic nature of X-rays. Dual energy cardiac CT (DE CT) shows promise to attenuate and even overcome some of these limitations, and ...
Beam hardening artifact reduction using dual energy computed tomography: implications for myocardial perfusion studies
(AME Publishing, 2015-02)
Background: Myocardial perfusion computed tomography (CTP) using conventional single energy (SE) imaging is influenced by the presence of beam hardening artifacts (BHA), occasionally resembling perfusion defects and commonly ...
Decompressive craniectomy and cerebral blood flow regulation in head injured patients: A case studied by perfusion CT
(MASSON EDITEURMOULINEAUX, 2012)
Previous studies have reported increased cerebral blood flow (CBF) velocity after decompressive craniectomy in traumatic brain injury (TBI) patients. A 27-year-old man presented with clinical and tomographic signs of ...
Comparison of myocardial perfusion evaluation with single versus dual-energy ct and effect of beam-hardening artifacts
(Elsevier Science Inc, 2015-05)
Rationale and objectives: We sought to explore the feasibility and diagnostic performance of dual-energy computed tomography (DECT) versus single-energy computed tomography (SECT) for the evaluation of myocardial perfusion ...
Fuzzy modeling of electrical impedance tomography images of the lungs
(Faculdade de Medicina / USP, 2008)
OBJECTIVES: Aiming to improve the anatomical resolution of electrical impedance tomography images, we developed a fuzzy model based on electrical impedance tomography's high temporal resolution and on the functional pulmonary ...
Brain hypoperfusion in adolescents dependent of multiple drugs
(Assoc Arquivos Neuro- PsiquiatriaSao Paulo SpBrasil, 2010)
Incremental value of myocardial perfusion over coronary angiography by spectral computed tomography in patients with intermediate to high likelihood of coronary artery disease
(Elsevier Ireland, 2015-04)
Purpose: We sought to explore the diagnostic performance of dual energy computed tomography (DECT) for the evaluation of myocardial perfusion in patients with intermediate to high likelihood of coronary artery disease ...
Improved Discrimination of Myocardial Perfusion Defects at Low Energy Levels Using Virtual Monochromatic Imaging
(Lippincott Williams, 2017-07)
Objectives: The aim of this study was to explore the diagnostic performance of dual-energy computed tomography perfusion (DE-CTP) at different energy levels. Methods: Patients with known or suspected coronary artery disease ...
Predictive value of dipyridamole myocardial perfusion tomography on survival Estratificación de riesgo de muerte a mediano plazo de pacientes evaluados por enfermedad coronaria con SPECT de perfusión miocárdica bajo efecto de dipiridamol
(Sociedad Medica de Santiago, 2018)
© 2018, Sociedad Medica de Santiago. All rights reserved. Background: Dipyridamole (DIP) is the most commonly employed pharmacological stressor for myocardial perfusion tomography (SPECT) in patients unable to reach an ...