Koninklijke Philips Corporation N.V.

Michael J Parma

Gerd Muehllehner

In positron emission tomography, a nuclear medicine scanner is utilized to detect &#x3b3;-ray events resulting from positron annihilation events. Molecules with known behaviors are tagged with radioactive isotopes which decay into &#x3b3;-ray pairs which are detected coincidentally, i.e. in a near-simultaneous fashion, by radiation detectors. A temporal recorder and a subject support monitor indicate the time and position of the subject when the coincident &#x3b3;-rays were detected. A storage buffer collects &#x3b3;-ray detection times and locations along with support positions. Every 1/100- 1/10second, a batch of data collected in the buffer is reconstructed into overlapping portions of an image memory as the support moves continuously through the scanner.

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Philadelphia, PA, United States of America

Michael J Parma