Non-matched images with 123I-IMP and 99mTc-bicisate single-photon emission tomography in the demonstration of focal hyperaemia during the subacute phase of an ischaemic stroke

Eur J Nucl Med. 1994 Mar;21(3):254-7. doi: 10.1007/BF00188674.


Focal hyperaemia is a fairly common phenomenon in the subacute phase of an ischaemic stroke. This has rarely been reported with iodine-123 iodoamphetamine (IMP) and has never been identified using technetium-99m bicisate (99mTc-ECD). In this report, we present the case of a patient suffering from a left cerebral posterior stroke. 123I-IMP single-photon emission tomography (SPET) images showed a large area of significantly increased IMP activity located in the left occipital region whereas 99mTc-bicisate SPET displayed hypoactivity in the same area.

Publication types

  • Case Reports
  • Comparative Study

MeSH terms

  • Amphetamines*
  • Brain Ischemia / diagnostic imaging*
  • Cysteine* / analogs & derivatives*
  • Humans
  • Hyperemia / diagnostic imaging*
  • Iodine Radioisotopes*
  • Male
  • Middle Aged
  • Organotechnetium Compounds*
  • Tomography, Emission-Computed, Single-Photon*


  • Amphetamines
  • Iodine Radioisotopes
  • Organotechnetium Compounds
  • technetium Tc 99m bicisate
  • Cysteine