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The image resolution for small animal PET systems using high energy positron emitters, such as 68Ga and 94mTc, is dominated by the positron range. The blurring caused by the positron range can be reduced through the use of an iterative reconstruction algorithm that statistically corrects for the range of the positron. This study investigates the effects of 7T magnetic fields on PET image quality while...
Very high resolution images can be achieved in small animal PET systems utilizing solid state silicon pad detectors. In such systems with sub-millimeter intrinsic resolutions, the range of the positron is becoming the dominant contribution to image blur. The size of the positron range effect depends on the initial positron energy and hence the radioactive tracer used. For higher energy positron emitters,...
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