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Now showing items 231-240 of 253
Live minimal path for interactive segmentation of medical images
(Society of photo-optical instrumentation engineers, 2015-03-20)
Medical image segmentation is nowadays required for medical device development and in a growing number of clinical and research applications. Since dedicated automatic segmentation methods are not always available, generic ...
Understanding LI-RADS : a primer for practical use
(Elsevier, 2014-07-31)
Hepatocellular carcinoma imaging systems : why they exist, how they have evolved, and how they differ
(Springer, 2017-08-24)
Over the past 16 years, several scientific organizations have proposed systems that incorporate imaging for surveillance, diagnosis, staging, treatment, and monitoring of treatment response of hepatocellular carcinoma ...
LI-RADS and transplantation for hepatocellular carcinoma
(Springer, 2017-06-13)
Patients with hepatocellular carcinoma (HCC) may be eligible for liver transplantation. Liver transplant candidates with HCC compete for the same deceased donor organs as those without HCC. These scarce organs must be ...
Liver Imaging Reporting and Data System : review of ancillary imaging features
(Elsevier, 2016-10-13)
The American College of Radiology supported Liver Imaging Reporting And Data System (LI-RADS) is a comprehensive system for standardized interpretation and reporting of imaging examinations performed in patients at risk ...
Liver imaging reporting and data system : review of major imaging features
(Elsevier, 2016-10-13)
The purpose of this article is to review and illustrate the Liver Imaging Reporting and Data System (LI-RADS) major features for interpretation and reporting of liver imaging examinations performed in patients at risk for ...
Estimation of the QT-RR relation : trade-off between goodness-of-fit and extrapolation accuracy
(IOP Publishing, 2017-02-03)
Correction of the QT interval in the ECG for changes in heart rate (RR interval) is needed to compare groups of patients and assess the risk of sudden cardiac death. The QTc represents the QT interval at 60 bpm, although ...
Theoretical and experimental comparison of lag-based and time-based exponential moving average models of QT hysteresis
(IOP Publishing, 2017-09-26)
Objective: In the electrocardiogram, adaptation of the QT interval to variations in heart rate is not instantaneous. Quantification of this hysteresis phenomenon relies on mathematical models describing the relation between ...
A statistical model of false negative and false positive detection of phase singularities
(American Institute of Physics, 2017-10-26)
The complexity of cardiac fibrillation dynamics can be assessed by analyzing the distribution of phase singularities (PSs) observed using mapping systems. Interelectrode distance, however, limits the accuracy of PS detection. ...
An eikonal-diffusion solver and its application to the interpolation and the simulation of reentrant cardiac activations
(Elsevier, 2012)
Electrical propagation of the cardiac impulse in the myocardium can be described by the eikonal-diffusion equation. This equation governs the field of activation times in a domain where conduction properties are specified. ...