The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2021
Filed:
Jan. 22, 2019
Siemens Medical Solutions Usa, Inc., Malvern, PA (US);
Manojeet Bhattacharya, Chicago, IL (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
For dose calibration () in functional imaging, different precision sources () for a same long-lived isotope are used to calibrate, avoiding having to ship one source from one location to another location. A ratio of sensitivities of a gas ion chamber-based dose calibrator () at a reference laboratory to the precision source () of the long-lived isotope to a source () with an isotope to be used for imaging is found. At the clinical site (e.g., radio-pharmacy or functional imaging facility), a measure () of the sensitivity of a local gas ion chamber-based dose calibrator () to the other source () with the long-lived isotope and the ratio from the remote gas ion chamber-based dose calibrator () are used to determine sensitivity of the local gas ion chamber-based dose calibrator () to the isotope of the radiopharmaceutical (). The bias and corresponding dose for the radiopharmaceutical () to be used for imaging a patient are based on activity for the radiopharmaceutical () as calibrated to account for the sensitivity of the local gas ion chamber-based dose calibrator () to the isotope of the radiopharmaceutical ().