Journals / Fırat Üniversitesi Sağlık Bilimleri Tıp Dergisi / 2009 / Cilt: 23 - Sayı: 2

The contribution of MR spectroscopy on the diagnosis of temporal lobe

Temporal lob epilepsisinde MR spektroskopinin tanıya katkısı

Pages
63–70
Publication Date
2022-10-18
DOI
—
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Levels of NAA, mI and ratios of NAA/Cho+Cr, NAA/Cho, NAA/Cr, Cho/Cr, and NAA/mI were measured by MRS.With TE 135 ms NAA/Cho, and NAA/Cre ratios; and TE 35 ms NAA levels, and NAA/Cho+Cre, NAA/Cr ratios were significantly different between patient and control groups and were lower in TLE patients.When MRS is compared with MRI, MRS can reveal the pathological changes in an early stage and it is important for the lateralization of the focus side.

📌 3 Key Takeaways

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Objective & Hypothesis:Temporal lobe epilepsy (TLE) is the most common cause of complex partial seizures.
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Key Findings & Data:For examination of hippocampus MRS with TE of 135 and 35 ms was performed in addition to the routine cranial MRI protocol.
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Conclusion & Impact:Levels of NAA, mI and ratios of NAA/Cho+Cr, NAA/Cho, NAA/Cr, Cho/Cr, and NAA/mI were measured by MRS.With TE 135 ms NAA/Cho, and NAA/Cre ratios; and TE 35 ms NAA levels, and NAA/Cho+Cre, NAA/Cr ratios were significantly different between patient and control groups and were lower in TLE patients.When MRS is compared with MRI, MRS can reveal the pathological changes in an early stage and it is important for the lateralization of the focus side.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Temporal lobe epilepsy (TLE) is the most common cause of complex partial seizures. Surgical treatment is an effective therapeutic option for patients who have drug refractory epilepsy. In this study, we sought to examine hippocampus pathologies by using magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS) in TLE patients.Thirty-six patients with clinically known TLE and the control group of twelve patients with history of headache were enrolled in this study. All patients underwent MRI nad MRS after investigation of clinical history and lateralization of focus side with EEG. For examination of hippocampus MRS with TE of 135 and 35 ms was performed in addition to the routine cranial MRI protocol. Hippocampal atrophy, hippocampal and parahippocampal signal alterations, temporal horn asymmetry, and spoiling of gray-white matter discriminations were evaluated by MRI. Levels of NAA, mI and ratios of NAA/Cho+Cr, NAA/Cho, NAA/Cr, Cho/Cr, and NAA/mI were measured by MRS.With TE 135 ms NAA/Cho, and NAA/Cre ratios; and TE 35 ms NAA levels, and NAA/Cho+Cre, NAA/Cr ratios were significantly different between patient and control groups and were lower in TLE patients.When MRS is compared with MRI, MRS can reveal the pathological changes in an early stage and it is important for the lateralization of the focus side.

Özet

Kompleks parsiyel nöbetlerin en sık nedeni temporal lob epilepsisidir (TLE). İlaç tedavisine dirençli olgular genellikle cerrahi tedaviye iyi yanıt verirler. Çalışmamızda TLE olgularında hipokampus patolojisinin ortaya konmasında konvansiyonel magnetik rezonans görüntüleme (MRG) ve magnetik rezonans spektroskopinin (MRS) rolü araştırılmıştır.Klinik olarak TLE düşünülen 36 olguya elektoensefalografi (EEG) ile odak tarafının belirlenmesinin ardından ve baş ağrısı nedeniyle başvuran 12 kontrol olguya MRG incelemesi yapıldı. Olgularda rutin beyin MRG’ye ek olarak iki hipokampüse yönelik TE 35 ve 135 ms’de Multivoksel MRS incelemeleri yapıldı. MRG’de hipokampal atrofi, patolojik sinyal değişikliği, beyaz-gri cevher ayırımında bozulma ve parahipokampal sinyal değişikliği ile temporal boynuz asimetrisi değerlendirildi. MRS’de NAA ve mI miktarları ile NAA/Cho+Cr, NAA/Cho, NAA/Cr, Cho/Cr ve NAA/mI oranları ölçüldü. Ayrıca lipid-laktat piki varlığı değerlendirildi.MRS’de TE 135 ms’de NAA/Cho ve NAA/Cr oranları ile TE 35 ms’de NAA miktarı ile NAA/Cho+Cr ve NAA/Cr oranlarında hasta ve kontrol grupları arasında istatiksel olarak anlamlı farklılık bulunmuş olup TLE’de daha düşük olarak ölçülmüştür.TLE tanısında MRS hipokampal patolojik değişiklikleri MRG’den daha erken dönemde ortaya koyabilir ve odak tarafınının gösterilmesinde önemli bir role sahiptir.

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Cite This Article

ÇELİKYAY, F., ÇELİKYAY, Y. Z. R., TOKGÖZ, N., BİLİR, E. (2022). The contribution of MR spectroscopy on the diagnosis of temporal lobe. Fırat Üniversitesi Sağlık Bilimleri Tıp Dergisi, Cilt: 23 - Sayı: 2, 63–70. https://ajindex.com/articles/514777

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