B. L. Daniel

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The endorectal coil is being increasingly used in magnetic resonance imaging (MRI) and MR spectroscopic imaging (MRSI) to obtain anatomic and metabolic images of the prostate with high signal-to-noise ratio (SNR). In practice, however, the use of endorectal probe inevitably distorts the prostate and other soft tissue organs, making the analysis and the use(More)
The substitution of digital representations for analog images provides access to methods for digital storage and transmission and enables the use of a variety of digital image processing techniques, including enhancement and computer assisted screening and diagnosis. Lossy compression can further improve the efficiency of transmission and storage and can(More)
The authors present a brief BASIC-language computer program that calculates positive and negative predictive values from the known sensitivity and specificity of a test over a range of disease prevalences and produces easily comprehended graphs of these relationships using commonly employed graphics software. These graphs permit rapid appreciation of the(More)
The substitution of digital representations for standard film/screen mammography analog images provides access to methods for digital storage and transmission and enables the use of a variety of digital image processing techniques, including enhancement and computer assisted detection and classification of abnormalities. Lossy image compression can further(More)
Introduction: Fast iterative thresholding methods [1,2] have been extensively studied as alternatives to convex optimization for high-dimensional large-sized problems in compressed sensing (CS) [3]. A common large-sized problem is dynamic contrast enhanced (DCE) MRI, where the dynamic measurements possess data redundancies that can be used to estimate(More)
Echo is the time delayed version of the original signal. Acoustic echo results from a feedback path set up between the speaker and the microphone in a mobile phone, hands-free phone .Echo can degrade the quality of service in telecommunication. Therefore echo cancellation is an important part of communication systems. A new approach based on the number of(More)
Introduction Dynamic Contrast Enhanced MRI (DCE-MRI) is recognized as an efficient diagnosis and prognostics tool in several lesions such as in solid cancers. However, the improvement of its quantification remains crucial. Among other questions, the signal to noise ratio (SNR) is known to be poor in DCE-MRI, yielding a low efficiency of the DCE-MRI to(More)
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