tc-HMPAO SPECT of the brain in mild to moderate traumatic brain injury patients: Compared with CT-a prospective study

Kester Nedd, George Sfakianakis, William Ganz, Bradford Uricchio, Dee Vernberg, Phillip Villanueva, A. M. Jabir, Jerry Bartlett, Julie Keena

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

Single photon emission computed tomography (SPECT) with Technetium-99m hexamethyl propylenamine oxime (Tc-99m-HMPAO) was used in 20 patients with mild to moderate traumatic brain injury (TBI) to evaluate the effects of brain trauma on regional cerebral blood flow (rCBF). SPECT scan was compared with CT scan in 16 patients. SPECT showed intraparenchymal differences in rCBF more often than lesions diagnosed with CT scans (87 -5% vs. 37-5% In five of six patients with lesions in both modalities, the area of involvement was relatively larger on SPECT scans than on CT scans. Contrecoup changes were seen in five patients on SPECT alone, two patients with CT alone and one patient had contrecoup lesions on CT and SPECT. Of the eight patients (50% with skull fractures, seven (43-7% had rCBF findings on SPECT scan and five (31.3% demonstrated decrease in rCBF in brain underlying the fracture. All these patients with fractures had normal brain on CT scans. Conversely, extra-axial lesions and fractures evident on CT did not visualize on SPECT, but SPECT demonstrated associated changes in rCBF. Although there is still lack of clinical and pathological correlation, SPECT appears to be a promising method for a more sensitive evaluation of axial lesions in patients with mild to moderate TBI.

Original languageEnglish (US)
Pages (from-to)469-479
Number of pages11
JournalBrain Injury
Volume7
Issue number6
DOIs
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Developmental and Educational Psychology
  • Clinical Neurology

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