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OBJECT Convection-enhanced delivery (CED) is a novel intracerebral drug delivery technique with considerable promise for delivering therapeutic agents throughout the CNS. Despite this promise, Phase III clinical trials employing CED have failed to meet clinical end points. Although this may be due to inactive agents or a failure to rigorously validate drug(More)
This paper addresses fast parallel methods for the computation of the Radon (Hough) Transform. The Radon Transform (RT) of an itnage is a set of projections of the image taken at different angles. Its computation is extremely important in image processing and computer vision, for problems such as pattern recognition ancl reconstruction of CAT scan images.(More)
Convection-enhanced delivery (CED) is the continuous injection under positive pressure of a fluid containing a therapeutic agent. This technique was proposed and introduced by researchers from the US National Institutes of Health (NIH) by the early 1990s to deliver drugs that would otherwise not cross the blood-brain barrier into the parenchyma and that(More)
Convection-enhanced delivery (CED) is a novel drug delivery technique that uses positive infusion pressure to deliver therapeutic agents directly into the interstitial spaces of the brain. Despite the promise of CED, clinical trials have demonstrated that target-tissue anatomy and patient-specific physiology play a major role in drug distribution using this(More)
OBJECTIVE Convection-enhanced delivery (CED) holds tremendous potential for drug delivery to the brain. However, little is known about the volume of distribution achieved within human brain tissue or how target anatomy and catheter positioning influence drug distribution. The primary objective of this study was to quantitatively describe the distribution of(More)
BACKGROUND Convection-enhanced delivery (CED) permits site-specific therapeutic drug delivery within interstitial spaces at increased dosages through circumvention of the blood-brain barrier. CED is currently limited by suboptimal methodologies for monitoring the delivery of therapeutic agents that would permit technical optimization and enhanced(More)
Volume navigation is the interactive exploration of volume data sets by " flying " the view point through the data, producing a volume rendered view at each frame. In this paper, we present an inexpensive perspective volume navigation method designed to run on a PC platform with acceIerated 3D graphics hardware. We compute perspective projections at each(More)