This technology relates to a device and method for non-invasive evaluation of a target of interest of a living subject, and in particular to devices and methods that integrate confocal imaging with confocal Raman spectroscopy, for non-invasive evaluation of the biochemical compositions and morphological details of normal and cancerous skin lesions of a living subject.
The technology described here permits the delivery of therapeutic or diagnostic (tumor imaging) molecules to a variety of tumor types in a targeted fashion. Current methods for targeting therapeutic agents to tumors have limited utility because they (i) produce toxic effects through reactions with normal tissues; (ii) lack the ability to bind to multiple tumor types and/or (iii) lack tumor specificity. This technology is based upon the fact that certain proteins are upregulated in blood vessels in response to irradiation. These upregulated proteins can act as targets for binding molecules such as antibodies, peptides, or other chemicals. Attaching an anti-tumor therapeutic unit, such as a radioisotope, to one of these binding molecules (e.g. an antibody) provides a way to treat or detect a variety of tumor types and stages while avoiding damage to normal tissue. Licensing Opportunity: A suite of patents and patent applications available for licensing includes compositions of radiation-inducible tumor proteins, and molecules that bind these proteins such as peptides and antibodies; along with methods of using these ligands for treatment and for identification of radiation inducible ligands in tumors. State of development/future plans: Screening a phage display library (murine) has resulted in production of 13 recombinant antibodies that bind to an identified radiation-inducible antigen. Only 2 (designated Lead and Control ScFv) of the 13 recombinant antibodies bound radiation-induced antigen in mice and are depicted in the accompanying figure. Of these two, the LEAD ScFv specifically bound tumor (see figure). Research is moving towards humanizing the lead antibody and identifying the specific epitope bound by the antibody.
A phase-contrast X-Ray computed tomography scanner, a monochromatic diffraction computed tomography scanner, a rotatable monochromatic diffraction computed tomography scanner, and a combination phase-contrast and monochromatic computed tomographic scanner are provided. In addition, a method of identifying an unknown sample is provided.
This is a high resolution imaging device that can detect the fundamental functional units of cortical organization. Currently, with existing technology, we are able to monitor the activity of these units in the awake, head-fixed animal using large standard sized cameras mounted on heavy camera arms. However, we need a capability to conduct such monitoring in the awake and freely moving animal so that we can relate specific patterns of cortical activity to natural behaviors.
Compounds and methods related to NIR molecular imaging, in-vitro and in-vivo functional imaging, therapy/efficacy monitoring, and cancer and metastatic activity imaging. Compounds and methods demonstrated pertain to the field of peripheral benzodiazepine receptor imaging, metabolic imaging, cellular respiration imaging, cellular proliferation imaging as targeted agents that incorporate signaling agents.
Methods of hyperpolarization based on parahydrogen have been expanding recently from the early applications in hydrogenation chemistry to biomedical imaging where they are expected to yield similar information as the competing technology, dynamic nuclear polarization, (DNP). These hyperpolarization experiments have already enabled the measurement of metabolism in vivo at temporal resolutions of seconds. When infused into organisms harboring tumor cells, molecules such as pyruvate and lactate have been shown to be sufficiently long-lived to infiltrate cellular metabolic cycles and be converted at different rates in cancer versus normal tissue. DNP has been used most frequently in these early studies, owing to commercial availability and the flexibility to polarize small molecules such as pyruvate and lactate. Techniques based on chemical addition or exchange of parahydrogen have also shown promise for generating metabolic contrast in vivo at similar levels of signal enhancement and at lower costs.
The present invention provides a PANACEA (Pneumatics Allow Nonmagnetic Actuation for Creation of Enhanced Alignment) polarizer system. This is an integrated assembly of pneumatically actuated, nonmagnetic hydraulic circuits that enable PASADENA chemicals to be efficiently stored, mixed, and reacted in close proximity or within NMR magnetic fields.
The present invention provides unsaturated choline analogs which, when hyperpolarized, may be useful as MRI contrast agents, and methods of making these choline analogs. These analogs can also be further modified to form hyperpolarized choline for use as an MRI contrast agent. The invention takes advantage of PHIP and can be produced in volume in much shorter times than by using DNP.
The present invention describes clinically-practical MRI methods for distinguishing bound and pore water signals from cortical bone based on T2-selective adiabatic pulses as well as T1 characteristics of cortical bone bound and pore water, and offers an improved method of assessing bone structure and fracture risk over x-ray based diagnostic techniques.
Hyperpolarization of nuclear spin ensembles has increased NMR sensitivity to a level that is now enabling detection of metabolism in biological tissue on a time-scale of seconds. The present invention is a pulse sequence that efficiently transforms parahydrogen spin order into heteronuclear magnetization. This was achieved via a single streamlined sequence without recursive application, by finding sequential analytic solutions to the density matrix evolution for each of four independent intervals that collectively flank two proton inversions and one heteronuclear excitation. The name hyper-SHIELDED (Singlet to Heteronuclei by Interative Evolution Locks Dramatic Enhancement for Delivery) reflects the sequence's protective effect on PHIP hyperpolarization.
Vanderbilt researchers have developed a way to correct for ubiquitous gradient delay errors in radial and spiral MRI data using only the data necessary to acquire the images. No extra data is required and no special scan must be done to perform the corrections using this unique method.
Novel saturation-based method for creating a 2D MR image of a slice of interest from an object is described. This method does not use gradients during excitation, which allows for the minimum echo time and greatly reduces sensitivity to gradient imperfections. Two signals are acquired -- one from the entire sample without spatial selection; the second from the entire sample following a slice saturation preparation. The difference between the two signals results in the signal only from the saturated 2D slice. The sequence has been implemented on both human (Philips) and animal (Agilent) scanners.