Details

Autor(en) / Beteiligte

• Oketani, Hiroshi
• Morioka, Takato
• Inoha, Satoshi
• Miki, Kenji
• Shimogawa, Takafumi
• Mukae, Nobutaka
• Sakata, Ayumi
• Shigeto, Hiroshi
• Yoshimoto, Koji

Titel

Detection of slightly increased signals in temporal lobe on periictal arterial spin labeling perfusion image for initial suspicion of temporal lobe epilepsy

Ist Teil von

• Epilepsy & Seizure, 2023, Vol.15(1), pp.67-74

Ort / Verlag

JAPAN EPILEPSY SOCIETY

Erscheinungsjahr

2023

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Introduction: Magnetic resonance (MR) perfusion imaging with arterial spin labeling (ASL) can easily detect periictal hyperperfusion accompanying epileptic seizures. Herein, we report two cases in which ASL performed immediately after a seizure was useful for the initial suspicion of temporal lobe epilepsy (TLE).Case report: Patients 1 and 2 developed focal-to-bilateral tonic-clonic and focal impaired awareness seizures, respectively, and were subsequently transferred to our facility for out-of-hours service. On emergent ASL MR perfusion imaging, a slight increase in signals from the hippocampus and lateral temporal lobe was observed in both patients. However, routine electroencephalography (EEG) performed from 12 h to two days later showed corresponding paroxysmal discharges only in Patient 2.Conclusion: These cases suggest that MR imaging with ASL perfusion, which can be performed 24 hours a day, is useful for the initial suspicion of TLE, compensating for the limitation of routine EEG. However, to ensure a definitive diagnosis, it is important to evaluate the result together with clinical history, seizure semiology and findings of other modalities centered on EEG.