SPECT Patterns in Epilepsy
Various perfusion patterns of subtracted SPECT in temporal and extra-temporal lobe epilepsy patients are illustrated
Conventional interictal SPECT of (B)
Interictal SPECT of (F)
Interictal SPECT of (G)
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SPECT Patterns in Epilepsy |
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From Lee
HW et al. Brain
2000;123:2150-59
Various perfusion patterns of subtracted SPECT in temporal and extra-temporal lobe epilepsy patients are illustrated |
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| (A) hyperperfusion in only mesial temporal region of right mesial temporal lobe epilepsy (TLE) | (B) hyperperfusion in lateral temporal region of a left neocortical TLE |
Conventional interictal SPECT of (B) |
Ictal SPECT of (B) |
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| (C) hyperperfusion in both mesial and lateral temporal areas in a right mesial TLE | (D) hyperperfusion-plus pattern of subtracted SPECT: bilateral temporal hyperperfusion with left predominance in a left neocortical TLE | (E-1 and E-2) Combined hyperperfusion–hypoperfusion pattern of subtracted SPECT; E-1 is a positive image showing hyperperfusion in left anterior temporal region and E-2 is a negative image showing hypoperfusion in left posterior and basal lateral temporal cortex from the same interictal and ictal SPECT images | |
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| (F) focal hyperperfusion in a left supplementary motor area seizure |
Interictal SPECT of (F) |
Ictal SPECT of (F) | |
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| (G) focal hypoperfusion in a right frontal lobe epilepsy |
Interictal SPECT of (G) |
Ictal SPECT of (G) | |