Johns Hopkins University

Robert Hobbs

George Sgouros

Stuart A Grossman

Eric Ford

Lawrence Kleinberg

Susannah Ellsworth

Hong Song

Andrew Prideaux

The present invention discloses systems and methods for calculating the radiation doses received by circulating blood cells. The present method may be applicable for calculating the radiation doses by circulating blood cells through any site in a patient. The present invention also discloses computer systems for calculating radiation doses received by circulating blood cells in a patient.

System and method for determining radiation dose to circulating blood

A computerized system and method for determining an optimum amount of radiopharmaceutical therapy (RPT) to administer, comprising: performing processing associated with obtaining activity image information related to at least one agent for sub-units of at least one imaged organ from at least one detector; performing processing associated with running at least one calculation for the activity image information, using at least one computer application, to obtain absorbed dose rate image information; and performing processing associated with adding the absorbed dose rate image information, using, the at least one computer application, to obtain RPT total absorbed dose image information for the at least one imaged organ; wherein macroscopic distribution measurements that are related to microscopic or sub-unit distribution of the at least one agent are utilized.

Method and system for administering radiopharmaceutical therapy (RPT)

The disclosure discusses methods for determining absorbed dose information. A tomography imaging device generates an anatomy image relating to anatomy of a particular patient. A tomography imaging device also generates multiple radioactivity images regarding radioactivity distribution of an internally administered pharmaceutical over time in the particular patient. The radioactivity images related to the radioactivity distribution over time are registered. Each radioactivity image is combined with each anatomy image to create activity images. A Monte Carlo simulation for each activity image is run to obtain absorbed dose-rate images of the pharmaceutical at multiple times. The absorbed dose-rate images are integrated over time to obtain a total absorbed dose image. The absorbed dose-rate images and the total absorbed dose image are used to obtain a biologically effective dose (BED) image. The BED image is used to obtain an equivalent uniform does (EUD) of BED values for a chosen anatomical region.

Methods for determining absorbed dose information

A system and method for adjusting count rate information, comprising: acquiring, using at least one detector, static image information from at least one imaged object; acquiring, using the at least one detector, whole body image information from the at least one imaged object; determining, using at least one computer application, the count rate information using the static image information and the whole body image information; and adjusting, using the at least one computer application, the count rate information by accounting for movement between the at least one detector and the at least one imaged object.

Method and system for gamma camera count rate saturation correction

A computerized method and system for determining an optimum amount of Internal Radionuclide Therapy (IRT) and External Radiation Therapy (XRT) to administer, comprising: obtaining activity image information for an imaged object from a detector; running a Monte Carlo simulation for the activity image information to obtain absorbed dose-rate image information at multiple times; adding the absorbed dose-rate image information from each time to obtain IRT total absorbed dose image information; and utilizing the IRT total dose image information to obtain total dose image information that is equivalent to XRT dose image information in terms of dose-rate, wherein the IRT dose information is converted to equivalent XRT dose information without having to generate BED dose maps.

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Baltimore, MD, United States of America

Robert Hobbs