Other

Rush University Medical Center

Rush-presbyterian-st. Luke's Medical Center

Wei C Chang

Caesar Ordonez

Kenneth Matthews

This invention features an integrated single photon emission computed tomography (SPECT)/transmission computed tomography (TCT) system for cardiac imaging including an open arc-shaped frame. A collimator system is shaped to approximately match the thoracic contour of patients having different sizes and weights and shaped to surround and position the collimator closely proximate a heart of a patient of said patients encompassed by at least one predetermined image volume for optimizing collimation of radiation photons emitted from the heart. An arc-shaped detector system is coupled to the collimator subsystem having a shape closely matching the shape of the collimator subsystem for detecting collimated radiation photons from the collimator subsystem and generating output electrical signals. A patient positioning subsystem positions a patient to a predetermined central longitudinal axis of the three-dimensional imaging volume and for intermittently and incrementally rotating the patient about the predetermined central longitudinal axis for generating a plurality of TCT images.

Integrated single photon emission computed tomography (SPECT)/transmission computed tomography (TCT) system for cardiac imaging

A single photon emission computed tomography (SPECT) system for cardiac imaging including an open arc-shaped frame. A collimator subsystem is shaped to approximately match the thoracic contour to optimize the geometric efficiency for detecting photons emitted from the heart of patients having different sizes and weights and shaped to surround and position the collimator subsystem closely proximate a heart of a patient of the patients encompassed by at least one predetermined image volume for optimizing collimation of radiation photons emitted from the heart. The collimator subsystem is facilitated by a tracking system that is capable of quickly bringing up the collimator component, which meets a specific set of collimation requirements, into place for imaging. And an open arc-shaped detector system is coupled to the collimator subsystem having a shape closely matching the shape of the collimator subsystem for detecting collimated radiation photons from the collimator subsystem and generating output electrical signals.

Single photon emission computed tomography (SPECT) system for cardiac imaging

A device and method for determining the x- and y-positions, as well as the depth of interaction, of an interaction between a gamma ray and a scintillation crystal. In one embodiment, a first and a second sensor array are disposed on opposite sides of a scintillation crystal which is subjected in incident gamma radiation resulting in the release of photons. The first sensor array provides a measurement of the x- and y-positions of the interaction while the second sensor array provides a measurement of the depth-of-interaction. In one embodiment, the first sensor array is a photomultiplier array and the second sensor array is an array of wavelength-shifting fibers.

Depth of interaction system in nuclear imaging

Apparatus for producing attenuation data for compensating a radionuclide emission imaging system. A single photon emission computed tomography (SPECT) system includes a radiation source disposed across the field of view from a detector portion and offset from a diameter through the center of the field of view intersecting a center of the detector portion. The radiation source and detector thereby define an asymmetrical radiation pattern that enlarges an attenuation field of view to provide a more thorough sampling of an object in the field of view.

Apparatus for producing attenuation scan

A nursing bottle system includes axially joined first and second container bodies or portions. The container bodies are liquid tightly separated from one another by a wall extending perpendicularly to the container axis. Different liquid foods can be carried in the container bodies, and fed as desired to an infant through a nipple provided at the open end of the selected container body of the system.

Growing community of inventors

Mt. Vernon, NY, United States of America

Wei C Chang