The "hot nose" sign on brain death nuclear scintigraphy: Where does the flow really go?

Eric A. Appelt, Won S. Song, William T. Phillips, Darlene F. Metter, Umber A. Salman, Ralph Blumhardt

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Nuclear scintigraphy has been used in patients with brain death since the 1970s. Many studies report a "hot nose" sign as predictive of brain death and lack of cerebral flow. Current nuclear medicine textbooks state that increased flow to the nose occurs secondary to occlusion of the internal carotid artery with flow rerouted to the nose via the external carotid artery. This explanation has been provided for decades assuming that the blood flow is actually increased to the nose. We performed a study to determine whether flow is really seen in the nose when a hot nose sign is present.

Original languageEnglish (US)
Pages (from-to)55-57
Number of pages3
JournalClinical Nuclear Medicine
Volume33
Issue number1
DOIs
StatePublished - Jan 1 2008

Keywords

  • "Hot nose"
  • Brain death
  • HMPAO

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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