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Nuclear cardiology apparatus and method

  • US 4,245,646 A
  • Filed: 06/19/1978
  • Issued: 01/20/1981
  • Est. Priority Date: 06/19/1978
  • Status: Expired due to Term
First Claim
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1. A cardiac function evaluating system utilizing radiation event counts from a radioisotope in the cardiovascular system of a subject, the system comprising:

  • (a) a radiation detector for producing data describing radiation count location distribution of the radioisotope in the subject over a two dimensional field;

    (b) circuitry for electrically segregating said data corresponding to radiation events occurring within a predetermined electronically defined region of interest within the field and encompassing a portion of the subject'"'"'s hear to be evaluated, said electrical segregation being executed in real time relative to the production of the data;

    (c) time gated multichannel memory circuitry for processing said segregated data for evaluating a heart function, and(d) display apparatus responsive to the time gated memory circuitry for producing an indication of a characteristic of the heart function being evaluated.

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