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Non-invasive estimation of hyperthermia temperatures with ultrasound
Ultrasound is an attractive modality for temperature monitoring because it is non-ionizing, convenient, inexpensive and has relatively simple signal processing requirements. This modality may beExpand
Theoretical estimation of the temperature dependence of backscattered ultrasonic power for noninvasive thermometry.
The backscattered signal received from an insonified volume of tissue depends on tissue properties, such as attenuation, velocity, density, and backscatter coefficient and on the characteristics ofExpand
Processing and analysis of cardiac optical mapping data obtained with potentiometric dyes.
The methods used to process and analyze cardiac optical mapping data are important because inappropriate data processing can affect the content of the data and thus alter the conclusions. Expand
Temperature dependence of ultrasonic backscattered energy in motion compensated images
Noninvasive temperature imaging would enhance the ability to uniformly heat tumors at therapeutic levels. Ultrasound is an attractive modality for this purpose. Previously, we predicted monotonicExpand
Effect of inhomogeneities on the apparent location and magnitude of a cardiac current dipole source.
A mathematical model was used to investigate the effects of electrical inhomogeneities introduced by the intracavitary blood mass and the lungs on the apparent location and magnitude of a current dipole source representing local activity in the myocardium. Expand
Noninvasive temperature estimation based on the energy of backscattered ultrasound.
Hyperthermia has been used as a cancer treatment in which tumors are elevated to cytotoxic temperatures to aid in their control. A noninvasive method for volumetrically determining temperatureExpand
Digital analysis of the electroencephalogram, the blood pressure wave, and the electrocardiogram
The electroencephalogram (EEG), the blood pressure wave, and the electrocardiogram (ECG), produce patterns that the eye of the physician has empirically correlated with important aspects of health. Expand
A simulation model for ultrasonic temperature imaging using change in backscattered energy.
Ultrasound backscattered from tissue has previously been shown theoretically and experimentally to change predictably with temperature in the hyperthermia range, i.e., 37 degrees C to 45 degrees C,Expand
Diagnostic Implications of Spectral and Temporal Analysis of the Entire Cardiac Cycle in Patients With Ventricular Tachycardia
BackgroundAvailable methods for analysis of signal-averaged electrocardiograms (ECGs) have a low-positive predictive accuracy for identifying patients at risk for ventricular arrhythmias.Expand