Abstract:
A system and method for analyzing bioelectrical signals generated during a deep brain stimulation (DBS) includes an apparatus having a housing having a signal input and a signal output and an electrical circuit disposed within the housing and electrically coupled between the signal input and the signal output. The electrical circuit is configured to receive bioelectrical signals corresponding to a cyclic excitation signal transmitted by a pulse generator during a DBS and generate an output signal comprising a series of timing pulses, wherein each timing pulse simulates an envelope of the cyclic excitation signal. The signal output of the housing is electrically coupleable to an auxiliary trigger input of an imaging system and the series of timing pulses can be used to trigger image data acquisition.
Abstract:
A system includes a multi-nuclear magnetic resonance (MR) receiving coil, wherein the receiving coil includes a frequency tuning component configured operate the receiving coil at either a first frequency or a second frequency. The receiving coil also includes an impedance matching component configured to maintain a substantially constant impedance of the receiving coil when the receiving coil is operated at either the first frequency or the second frequency. Furthermore, the receiving coil is configured to measure a first nucleus when operated at the first frequency, and wherein the receiving coil is configured to measure a second nucleus when operated at the second frequency.
Abstract:
The present embodiments are directed towards the optical control of switching an electrical assembly. For example, in an embodiment, an electrical package is provided. The electrical package generally includes a micro electromechanical systems (MEMS) device configured to interface with an electrical assembly, the MEMS device being operable to vary the electrical assembly between a first electrical state and a second electrical state, a MEMS device driver in communication with the MEMS device and being operable to produce high voltage switching logic from an electrical signal, and an optical detector in communication with the MEMS device driver and configured to produce the electrical signal from an optical signal produced by a light source in response to an applied current-based electrical control signal.
Abstract:
An imaging device may include a patient bore to house a subject to be imaged, wherein the patient bore includes one or more bore tubes. The imaging device may also include a gradient coil surrounding, at least partially, the patient bore and a radio frequency (RF) shield located outside the one or more bore tubes. Additionally, the imaging device may include an RF coil located within at least one of the bore tubes.
Abstract:
A system and method for predicting an excitation pattern of a deep brain stimulation (DBS) from monitored bioelectrical signals includes an apparatus having a housing having a signal input and a signal output and an electrical circuit disposed within the housing. The electrical circuit is electrically coupled between the signal input and the signal output and is configured to receive bioelectrical signals corresponding to an excitation signal transmitted by a pulse generator during a DBS. The electrical circuit is also configured to convert the bioelectrical signals into digital logic pulses, predict a future timing pattern of the excitation signal from the digital logic pulses, and generate an output from the future timing pattern, the output comprising a log of time stamps predictive of future active transmission periods of neurological excitation.
Abstract:
A system and method for predicting an excitation pattern of a deep brain stimulation (DBS) from monitored bioelectrical signals includes an apparatus having a housing having a signal input and a signal output and an electrical circuit disposed within the housing. The electrical circuit is electrically coupled between the signal input and the signal output and is configured to receive bioelectrical signals corresponding to an excitation signal transmitted by a pulse generator during a DBS. The electrical circuit is also configured to convert the bioelectrical signals into digital logic pulses, predict a future timing pattern of the excitation signal from the digital logic pulses, and generate an output from the future timing pattern, the output comprising a log of time stamps predictive of future active transmission periods of neurological excitation.
Abstract:
The system and method of the invention pertains to an MR-guided breast biopsy procedure, specifically as to quickly identifying the biopsy location. More particularly, the system utilizes a diagnostic imaging modality such as magnetic resonance imaging (MRI) to locate one or more lesions in a human breast. Non-rigid registration between uncompressed screening images (where the lesion has been previously identified) and the compressed biopsy images enables easier identification of the biopsy site, hence shortening the biopsy procedure.
Abstract:
The present approach relates to the manufacture and use of guides inserts for use in the insertion of certain tools into a patient. Guide inserts as discussed herein allow tools to be inserted at arbitrary, including non-perpendicular, orientations relative to a grid in which the guide insert is positioned. Both customizable and configurable guide inserts are contemplated and described.
Abstract:
A system includes a multi-nuclear magnetic resonance (MR) receiving coil, wherein the receiving coil includes a frequency tuning component configured operate the receiving coil at either a first frequency or a second frequency. The receiving coil also includes an impedance matching component configured to maintain a substantially constant impedance of the receiving coil when the receiving coil is operated at either the first frequency or the second frequency. Furthermore, the receiving coil is configured to measure a first nucleus when operated at the first frequency, and wherein the receiving coil is configured to measure a second nucleus when operated at the second frequency.
Abstract:
The present approach relates to the manufacture and use of guides inserts for use in the insertion of certain tools into a patient. Guide inserts as discussed herein allow tools to be inserted at arbitrary, including non-perpendicular, orientations relative to a grid in which the guide insert is positioned. Both customizable and configurable guide inserts are contemplated and described.