Sven Prevrhal,Michael Grass,Eberhard Sebastian Hansis
申请号：
US15100648
公开号：
US09638812B2
申请日:
2014.11.24
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A reconstruction apparatus (9) reconstructs a PET image. A first detector (3) generates first detection events and detection times assigned to the first detection events and a second detector (6) generates second detection events and detection times assigned to the second detection events. A timing window determination unit (11) provides a first-second timing window by providing a first-second upper threshold based on the position of the second detector relative to the first detector and a detection event pairs generation unit (12) generates first-second detection event pairs based on the provided first-second timing window. The first-second detection event pairs are used for reconstructing the PET image. The first-second timing window depends on the position of the second detector leads to an improved generation of first-second detection event pairs, which in turn can lead to an improved PET image.
