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Reverse redistribution on Rb-82: Does the mechanism of stress play a role?


1 Department of Radiology, Health Sciences Centre, University of Manitoba, Winnipeg, Manitoba, Canada; Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard University, Boston, Massachusetts, United States
2 Department of Radiology and Nuclear Medicine, Montreal Heart Institute, Montreal, Quebec, Canada
3 Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard University, Boston, Massachusetts, United States; Department of Radiology and Nuclear Medicine, Montreal Heart Institute, Montreal, Quebec, Canada

Correspondence Address:
Matthieu Pelletier-Galarneau,
Department of Radiology and Nuclear Medicine, Montreal Heart Institute, Montreal, Quebec, Canada

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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/wjnm.WJNM_100_18

We present a case of reverse redistribution in a patient imaged with Rb-82 positron-emitting tomography. The patient was imaged twice in rapid succession using pharmacological stress – once with dipyridamole and once with dobutamine. The patient demonstrated reverse redistribution after dipyridamole but not after dobutamine administration. We speculate on the relationship between the pharmacological stressing agent and the presence of reverse redistribution.


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    -  Martineau P
    -  Harel F
    -  Pelletier-Galarneau M
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