Perimeter Medical Imaging, Inc.

University of Toronto

Elizabeth Alice Munro

David Rempel

James Jackson

Chao Fan

Ofer Levi

Andrew Berkeley

Yaaseen Atchia

Embodiments described herein relate to an apparatus for positioning and securing an excised biological tissue specimen for imaging and analysis. In some embodiments, an apparatus includes a sample bag defining an inner volume configured to receive a biological tissue sample, and a sealing member coupled to the sample bag. An imaging window is disposed and configured to be placed in contact with at least a portion of the biological tissue sample, and a positioning member is coupled to the imaging window and is configured to be disposed against the sealing member to substantially seal the inner volume. The positioning member includes a vacuum port disposed and configured to be aligned with a vacuum source to withdraw air from the inner volume of the sample bag.

Sample container for stabilizing and aligning excised biological tissue samples for ex vivo analysis

Various embodiments are described herein for a system and method of integrated X-ray imaging and microscopic imaging of an imaging area having a sample on a sample stage. An X-ray apparatus may be disposed within the imaging area and be configured to acquire X-ray image data of at least a portion of the sample. A microscopic imaging apparatus may be disposed within the imaging area and be configured to acquire microscopic image data of the at least a portion of the sample. In some embodiments, a processing unit may then control the X-ray apparatus to acquire X-ray image data of the at least the portion of the sample, and generate one or more corresponding X-ray images; determine a region of interest (ROI) of the sample based on the one or more X-ray images; and control the microscopic imaging apparatus to obtain at least one microscopic image based on the ROI.

Method and system for combining microscopic imaging with X-Ray imaging

The present invention uses vertical-cavity surface-emitting lasers (VCSELs) as illumination source for simultaneous imaging of blood flow and tissue oxygenation dynamics in vivo, or a means to monitor neural activity in brain slices ex vivo. The speckle pattern on the brain tissue due to a VCSEL's coherence properties is the main challenge to producing low-noise high-brightness illumination, required for evaluating tissue oxygenation. Moreover, using oxide-confined VCSELs we show a fast switching from a single-mode operation scheme to a special multi-modal, multi-wavelength rapid sweep scheme. The multi-modal, multi-wavelength rapid sweep scheme reduces noise values to within a factor of 40% compared to non-coherent LED illumination, enabling high-brightness VCSELs to act as efficient miniature light sources for various brain imaging modalities and other imaging applications. These VCSELs are promising for long-term portable continuous monitoring of brain dynamics in freely moving animals.

System and method for optical imaging with vertical cavity surface emitting lasers

Growing community of inventors

Toronto, Canada

Elizabeth Alice Munro