HTML> Brain-SPECT imaging: Procedure and protocols

Atlas of brain perfusion SPECT

Brain perfusion SPECT imaging:
Procedure and protocol




20 mCi (740 MBq) of Tc-99m HMPAO (Ceretec, Amersham Inc.) or Tc-99m ECD (Neurolite, DuPont) is injected intravenously with the patient's eyes open, in a dimly lit room with white noise in the background. This state of activation is maintained during the 10 to 20 minutes before image acquisition with HMPAO and for 30 to 60 minutes before imaging with ECD.

Attention is paid to achieving a reproducible baseline state. The injection protocol depends upon the information that is being sought, but once the protocol is established, it must be followed diligently. Patient's eyes and ears may also be covered in order to reduce outside stimulants which can alter cerebral blood flow and/ or metabolism.

Cases in this atlas were imaged using high resolution brain dedicated CeraSPECT camera (DSI, Waltham, MA).



Comments and errors to Chandak@dsg.harvard.edu. Information on images through Basem@bwh.harvard.edu.
Last updated: July 20, 1995.