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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...
As the intrinsic spatial resolution of small animal PET systems continue to improve into the sub-millimeter regime, the positron range is becoming the dominant factor to the image resolution. This is especially true for higher energy positron emitting radioisotopes such as 68Ga and 94mTc. It has been demonstrated that the range of the positron can be reduced in the plane transverse to an applied magnetic...
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