Brain perfusion SPECT for brain death assessment

Barata, Pedro; Fernandes, Ana; Oliveira, Ana; Faria, Teresa; Pereira, Jorge

doi:10.1007/s00259-016-3565-4

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2024

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“…More studies with pathological correlations are needed for the eventual modification of guidelines covering such cases. 7,8…”

Section: Figurementioning

confidence: 99%

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Aneurysmal 99mTc-HMPAO Uptake in Brain Death

Do,

Suhaj,

Benes

et al. 2024

Clin Nucl Med

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A 41-year-old man was admitted to hospital due to sudden loss of consciousness. A regional brain perfusion SPECT/low-dose CT showed abnormal 99mTc-HMPAO uptake in the right hemisphere frontotemporally without any other supratentorial or infratentorial radiotracer uptake. A neuropathological examination disclosed a middle cerebral artery aneurysm. Presumably, vessel wall fibrosis prevented collapse. Multiple transmural dissections of the fibrotic aneurysmal wall were the source of the subarachnoid hemorrhage. This interesting image shows that radiotracer accumulation in cerebral artery aneurysms can be a diagnostic pitfall in brain death scintigraphy assessment.

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“…More studies with pathological correlations are needed for the eventual modification of guidelines covering such cases. 7,8…”

Section: Figurementioning

confidence: 99%

“…In D , the weakened fibrotic vessel wall shows multiple transmural dissections reaching the subarachnoid space, affirming that the aneurysm in the middle cerebral artery was the source of the SAH. More studies with pathological correlations are needed for the eventual modification of guidelines covering such cases 7,8 …”

mentioning

confidence: 99%