Dynamic CT perfusion measurement in a cardiac phantom

In conclusion, the results of the study indicate that the FPA technique can make accurate dynamic CT perfusion measurements over a range of clinically relevant perfusion rates, while substantially reducing radiation dose, as compared to currently available dynamic CT perfusion techniques.
Source: The International Journal of Cardiovascular Imaging - Category: Radiology Source Type: research

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ConclusionThree-dimensional visualization of opened coronary microvascular vessels is feasible in DiI-labelled myocardium in this rat MI model. This novel technique might be useful for defining the underlying mechanisms of coronary microvascular diseases and observe the efficacy of various therapy strategies on coronary microvessels.
Source: Microvascular Research - Category: Biochemistry Source Type: research
The clinical differentiation between Parkinson disease (PD) and multiple system atrophy (MSA) is difficult.
Source: Parkinsonism and Related Disorders - Category: Neurology Authors: Source Type: research
ConclusionCT was a more effective diagnostic tool for the diagnosis of irreversible gastric necrosis following caustic ingestion than a strategy based on digestive endoscopy and the use of CBSC. CT could eventually replace gastrointestinal endoscopy in the emergency evaluation of gastroesophageal caustic burns.
Source: Journal of Visceral Surgery - Category: Surgery Source Type: research
The purpose of our study was to determine the accuracy of a software (EmboGuide Investigational Device, Philips, The Netherlands) in predicting liver perfusion volumes distal to a proximal contrast-enhanced cone-beam computed tomography (CBCT) scan for the purposes of radioembolization planning.
Source: Journal of Vascular and Interventional Radiology : JVIR - Category: Radiology Authors: Tags: Scientific e-Poster Source Type: research
ConclusionThe vessel-specific MCP myocardial perfusion territory assignment technique more accurately quantifies LCA and RCA perfusion territories as compared with the current standard AHA 17-segment model. Therefore, it can potentially provide a more comprehensive and patient-specific evaluation of coronary artery disease.Key Points• The minimum cost path (MCP) technique accurately determines left and right coronary artery perfusion territories, as compared with the American Heart Association 17-segment (AHA) model.• The minimum cost path (MCP) technique could be applied to cardiac computed-tomography angiograph...
Source: European Radiology - Category: Radiology Source Type: research
CONCLUSIONSIn patients with NICM, lower sMBF predicts VA. This relationship may be useful for risk stratification for ventricular arrhythmia and decision ‐making regarding ICD implantation.This article is protected by copyright. All rights reserved.
Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: ORIGINAL ARTICLE Source Type: research
Conclusion: The FAZ area and perimeter showed excellent reproducibility. The macular perfusion parameters are not interchangeable despite automated estimation. The variability is more with changes in the vascular network like DR. This variability should be considered while comparing different scans.
Source: Indian Journal of Ophthalmology - Category: Opthalmology Authors: Source Type: research
The objective of this study was to assess the incremental value of myocardial wall motion and thickening compared with perfusion alone obtained from gated single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) in diagnosing myocardial viability in patients with ischemic heart failure.MethodsEighty-three consecutive patients with ischemic heart failure who underwent both99mTc-MIBI gated SPECT MPI and18F-FDG positron emission tomography (PET) myocardial metabolic imaging were retrospectively enrolled. SPECT/PET myocardial viability was defined as the reference standard. Segmental myocardial per...
Source: Journal of Nuclear Cardiology - Category: Nuclear Medicine Source Type: research
Publication date: Available online 11 February 2020Source: Fuß &SprunggelenkAuthor(s):
Source: Fuss and Sprunggelenk - Category: Podiatry Source Type: research
In this study, the feasibility of the quantification of prostate cancer aggressiveness using parametric methods assessing [11C]-acetate kinetics was investigated in prostate cancer subjects. The underlying uptake mechanism correlated with [11C]-acetate influx and efflux measured in real-time in vitro in cell culture. Methods: Twenty-one patients with newly diagnosed low-to-moderate risk prostate cancer underwent magnetic resonance imaging (MRI) and dynamic [11C]-acetate PET/CT examinations of the pelvis. Parametric images of K1 (extraction × perfusion), k2 (oxidative metabolism) and VT (=K1/k2, anabolic metabolism de...
Source: International Journal of Medical Sciences - Category: Biomedical Science Tags: Int J Med Sci Source Type: research
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