摘要:
A treatment simulator for providing information on physiological states and effects of treatment of neurological disease, comprising a computer, and an application configured to operate with the computer. The application is capable of: obtaining radiological imaging from the brain; obtaining anatomical information from the radiological imaging within a region of interest within the brain; constructing a physiological states model which assesses physiological states of the region of interest; locating sources of interstitial flow of particulate matter and obtaining fluid conductivities of paths of the interstitial flow utilizing the anatomical information and the physiological states model; and creating a flow model of the particulate matter which assesses velocities of flow and interstitial pressure variations utilizing the sources of interstitial flow and the fluid conductivities.
摘要:
Methods and systems for providing planning and dispensation of research and/or treatment for brain disease. Radiological information is generated in a region of interest in an area of the a brain of an individual using a radiological imaging system. A physiological states model is constructed which assesses physiological states of the region of interest. Locations of sources of interstitial fluid flow, fluid conductivities of paths, and anatomical information in the region of interest are obtained using the radiological imaging information. Velocities of the interstitial fluid flow in the region of interest are computed using the physiological states model, the locations of sources of interstitial flow, the fluid conductivities, and the anatomic information. A model of the area of the brain is created, the model including the region of interest.
摘要:
The present invention provides for a method of controlling mass movement of fluid material within a field of interest comprising using time reversal acoustic focusing. The time reversal acoustic focusing can be is used for simultaneous spatial and temporal focusing of acoustic energy to control the duration of localization and/or direction of movement of material within tissue or liquid within tissue. Both delivery of material and persistence with respect to target locations can be enhanced by focusing of sonic waveforms or transmissions towards targeted areas in a field of interest, such as within a patient.
摘要:
A medical device and method for planning or performing a method for delivering material through tissue into a defined area of a patient may comprise: a material delivery element through which the material may flow out of a delivery end; and observing the migration, flow and persistence of material delivered and developing an plan or optimizing a plan for the delivery of material into the defined area. Novel catheter devices are provided to support these methods.
摘要:
A method supplies a dynamic vector map of properties within a region or a unified suite of quantification functionality for property functions, such as density functions, conduction functions (e.g., thermal conduction, electrical conduction, atomic or subatomic mass conduction, macromolecular mass conduction), defined on, defined in or defining a three-dimensional space, which functions may optionally vary in time. At least two services assisting in the definition of the map or suite, even in a dynamic modality, are selected from: (a) computation of the volume of the region where the density lies above or below a specified threshold, or between two specified values; (b) computation of the integral of the density; (c) estimation of the rate of change of the density with respect to time, optionally restricted to a specified region; (d) estimation of the local or global failure of conservation represented by changes with time in the density; (e) estimation of the local or global rate at which material with a changing density is passing through a specified surface (e.g., boundary); and (f) separation of the density of a material with a changing density, given an implemented transport model, into “free” and “bound” densities.
摘要:
A method and system for mapping anatomical connection and signaling across a multiplicity of channels, channel contents, and channel speed. In particular, the anatomical connection and signaling is mapped in relation to the human brain. Constructs a three-dimensional, dynamically structured, active model, for general or individual patterns. Uses for the present invention include: risk reduction in surgery to significant channels; planning cell insertion at sites where they can be expected to migrate to a less reachable target site; guiding searches for metastatic tumors; indirectly localizing brain structures; constructing models of disease in which multiple sites are involved in the deficit and any proposed repair; and building simulation of normal processes which require the sequential interaction of multiple sites.
摘要:
Surgery is performed on a patient with a novel device by: excising tissue from tissue mass within a patient to create a cavity within the tissue mass; inserting a novel device of this invention into the cavity; shaping a flexible expandable component of the device to adjust dimensions on the flexible expandable component; providing a liquid into the component through the liquid input port; and controlling pressure or flow rate of the liquid in the component to move the liquid through the multiple openings and into the cavity. The device has a liquid inlet port, an exterior surface having length, width and depth, and multiple openings in the surface distributed throughout the length, width and depth to act as liquid delivery ports; the exterior surface of the liquid delivery device being shapeable by internal pneumatic pressure or hydraulic pressure to better fit inside dimensions of a surgical cavity; the multiple openings deliver the liquid through the multiple openings.
摘要:
A medical imaging processing method includes: using an imaging method to acquire at least first and second data sets of a region of interest of a patient's body, with at least one image acquisition parameter being changed so that first and second data sets yield different contrast levels relating to different substance and/or tissue types, and wherein the at least one acquisition parameter used to obtain the first data set is selected to enhance the contrast between one of the substance and/or tissue types relative to other substance and/or tissue types, and the at least one acquisition parameter used to obtain the second data set is selected to enhance the contrast between a different one of the substance and/or tissue types relative other substance and/or tissue types, thereby to optimize the contrast between at least three different substance and/or tissue types; and processing the two data sets to identify the different tissue types and/or boundaries therebetween.
摘要:
A local user obtains data on the response of internal tissues of a subject to a non-invasive imaging system, choosing sensor positions according to a geometric display. The data obtained are evaluated with respect to predefined quantitative values. The process of obtaining and processing the internal tissue response data is repeated until an image meeting predetermined image quality characteristics is obtained. Specific or general content of the image may be restricted by the local processor, with a distal processor receiving the obtained image data, so as to limit specific or general types of image information from being viewed by the local user, such as image data that can be used to identify the sex of a fetus within the subject.
摘要:
Known time reversal methods consist of three steps which may be listed as (i) the recording of signals and (ii) the time reversing of the recorded signals, and (iii) the transmission of the time-reversed signals. The first and third steps of the above process are retained, but the second step is modified. The empirical signal is transformed to fit mathematical forms taught by the mathematics of singularity and catastrophe theory that ensure a structural stability to the waveforms that will be received, when the time reversed signals are transmitted again. This structural stability ensures robustness of the waveform and the predominant direction of the flux of energy of the waveform, and improves controllability of the location of the high magnitude regions of the energy flux despite limited knowledge of the exact properties of the medium. Applications to drug delivery in the brain, and geophysical applications are envisaged.