Journals / Bakırköy Tıp Dergisi / 2019 / Cilt: 15 - Sayı: 1

Volumetric Evaluation of Contralateral Hippocampus in Unilateral Mesial Temporal Sclerosis

Tek Taraflı Mezial Temporal Sklerozda Karşı Taraf Hipokampüsün Volüm Değerlendirmesi

Pages
41–46
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It is thought that this study and similar studies will contribute to understand functional and anatomic changes in epilepsy cases, neurodegenerative diseases, natural aging process and limbic system.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Objective: In temporal lobe epilepsies (TLE), mesial temporal sclerosis (MTS) is characterized by gliosis and atrophy in the ipsilateral hippocampusof epilepsy centerand associated limbic structures.
📊
Key Findings & Data:Methods: The patients diagnosed of TLE and applied to radiology clinic between 2008 and 2010 for visualization, were evaluated retrospectively. 69 patients (35 males, 34 females) with unilateral MTS and no EEG in other focus were selected as the treatment group. 49 patients (20 males, 29 females), who applied to the clinic due to headache complaint, underwent cranial MRI and diagnosed of normal in neurological examination, were selected as the control group.
💡
Conclusion & Impact:It is thought that this study and similar studies will contribute to understand functional and anatomic changes in epilepsy cases, neurodegenerative diseases, natural aging process and limbic system.
🔬Design:Research Article
📍Scope:2008 Verileri
⚙️Variables:Domain Parameters

Abstract

Objective: In temporal lobe epilepsies (TLE), mesial temporal sclerosis (MTS) is characterized by gliosis and atrophy in the ipsilateral hippocampusof epilepsy centerand associated limbic structures. This study aimed to examine whether there was a volumetric change in the contralateral hippocampus showing normal signal characteristics in patients with unilateral MTS. Methods: The patients diagnosed of TLE and applied to radiology clinic between 2008 and 2010 for visualization, were evaluated retrospectively. 69 patients (35 males, 34 females) with unilateral MTS and no EEG in other focus were selected as the treatment group. 49 patients (20 males, 29 females), who applied to the clinic due to headache complaint, underwent cranial MRI and diagnosed of normal in neurological examination, were selected as the control group. The hippocampus volume of both sides in the control group and the side thought to be normal during visualization in the treatment groupwas evaluated using the area calculation method. The visualization of all patients were performed in 1.5T magnet system. Results: Patients’ age range was 8-58 years in the treatment group and 15-49 years in the control group. MTS was diagnosed in the right side of 29 patients and in the left side of 40 patients. The mean hippocampal area in the normal side of the patients in treatment group was statistically significantly lower than the mean hippocampal area of the patients in control group (p <0.05). Conclusion: It is argued in recent years that there may be volumetric changes in white and gray matter on the normal accepted side and non-hippocampal regions of patients with unilateral MTS. This study results support the views advocated in recent years. It is thought that this study and similar studies will contribute to understand functional and anatomic changes in epilepsy cases, neurodegenerative diseases, natural aging process and limbic system.

Özet

Amaç: Mezial temporal skleroz (MTS), temporal lob epilepsilerinde, epilepsi odağı ile aynı taraf hipokampus ve ilişkili limbik yapılarda gliozis ve atrofi ile karakterizedir. Biz çalışmamızda, tek taraflı MTS izlenen olgularda, normal sinyal özelliği gösteren karşı taraf hipokampusta volüm değişikliği olup olmadığını araştırdık. Yöntemler: 2008-2010 tarihleri arasında radyoloji kliniğine, TLE tanısı ile görüntüleme amaçlı başvuran olgular retrospektif olarak değerlendirildi. Tek taraflı MTS saptanan ve başka odakta EEG bulgusu olmayan, 69 olgu (35 erkek, 34 kadın) seçildi. Başağrısı şikayeti ile başvuran, nörolojik muayenesi normal saptanan ve kranyal MRG tetkiki yapılan 49 olgu( 20 erkek, 29 kadın) kontrol grubu olarak seçildi. Hasta grubunda, görüntüleme olarak normal olduğu düşünülen taraf ve kontrol grubunda her iki taraf hipokampus volümü, alan hesabı ile değerlendirildi. Tüm olguların görüntülemesi,1.5T magnet sistemde, 8 kanallı kafa koili ile yapıldı. Bulgular: Hasta grubunda yaş dağılımı 8-58 yaş, kontrol grubunda 15-49 yaş arasındaydı. 35 erkek, 34 kadın olgunun, 29’ unda sağda, 40’ ında solda MTS saptanmıştır. İncelemeye alınan olguların hipokampal alan ortalama dağılımı incelendiğinde; hasta grubu olguların normal taraftaki hipokampal alan ortalaması, kontrol grubu hipokampal alan ortalamasından istatistiksel olarak anlamlı düşük bulundu (p<0,05). Sonuç: Tek taraflı MTS olgularında, son yıllarda, normal kabul edilen tarafta ve hipokampus dışı bölgelerde beyaz ve gri cevherde de volüm değişikliği olabileceği savunulmaktadır. Çalışmamızın sonucu, son yıllarda savunulan görüşleri desteklemekte olup, bu ve benzer çalışmaların, epilepsi olguları, nörodejeneratif hastalıklar ve doğal yaşlanma süreci ile limbik sistemdeki fonksiyonel ve anatomik değişiklikleri anlama yolunda katkı sağlayacağını düşünüyoruz.

🔖

Cite This Article

SARSILMAZ, A. (2019). Volumetric Evaluation of Contralateral Hippocampus in Unilateral Mesial Temporal Sclerosis. Bakırköy Tıp Dergisi, Cilt: 15 - Sayı: 1, 41–46. https://ajindex.com/articles/125948

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. İzci Y, Erbaş C. Hipokampus:Yapısı ve Fonksiyonları. Türk Nöroşir Derg 2015;25:287-95.
  2. Hogan RE, Wang L, Bertrand ME, Willmore JL, Bucholz RD, et al. MRI-based high dimensional hippocampal mapping in mesial temporal lobe epilepsy. Brain 2004;127:1731-40.
  3. Hogan RE, Bucholz RD, Choudhuri I, Mark KE, Butler CS, et al. Shape analysis of hippocampal surface structure in patients with unilateral mesial temporal sclerosis. Journal of digital imaging. 2000; 113: 39-42.
  4. Bernasconi N, Bernasconi AZ, Caramanos Z, Antel SB, Andermann F, et al. Mesial temporal damage in temporal lobe epilepsy: a volumetric MRI study of the hippocampus, amgydala and parahippocampal region. Brain 2003;126:462-9.
  5. Alhusaini S, Doherty CP, Scanlon C, Ronan L, Maguire S, et al. A cross-sectional MRI study of brain reigonal atrophy and clinical characteristics of temporal lobe epilepsy with hippocampal sclerosis. Epilepsy Research 2012;99:156-66.
  6. Keller SS, Mackay CE, Barrick TR, Wieshmann UC, Howard MA, et al. Voxel-based morphometric comparison of hippocampal and extrahippocampal abnormalities in patients with left and right hippocampal atrophy. Neuroimage 2002;16:23-31.
  7. Szabo CA, Lancaster JL, Lee S, Xiong JH, Cook C, et al. MR Imaging volumetry of subcortical structures and cerebellar hemispheres in temporal lobe epilepsy. Am J Neuroradiol 2006;32:1857-61.
  8. Labate A, Cerasa A, Aguglia U, Mumoli L, Quattrone A, et al. Voxel-based morphometry of sporadic epileptic patients with mesiotemporal sclerosis. Epilepsia 2010;51:506-10.
  9. Diniz PRB, Velasco TR, Salmon CEG, Sakamato AC, Leite JP, et al. Extratemporal damage in temporal lobe epilepsy: Magnetic transfer adds information to volumetric MR imaging. Am J Neuroradiol 2011;32:1857-61.
  10. Seidenberg M, Kelly KG, Parrish J, Geary E, Dow C, et al. Ipsilateral and contralateral MRI volumetric abnormalities in chronic unilateral temporal lobe epilepsy and their clinical correlates. Epilepsia 2005;46:420-30.
  11. Araujo D, Santos AC, Velasco TR, Wichert-Ana L, Terra-Bustamante VC, et al. Volumetric evidence of bilateral damage in unilateral mesial temporal lobe epilepsy. Epilepsia 2006;47:1354-9.
  12. Hakyemez B, Yücel K, Bora İ, Parlak M. Temporal lob epilepsili olgularda kalitatif ve kantitatif MRG bulgularının klinik tanı değeri. Tanısal ve Girişimsel Radyoloji 2003;9:157-65.
  13. Glasper ER, Gould E. Sexuel experience restores age related decline in adult neurogenesis and hippocampal function. Hippocampus 2013;23:303-12.
  14. Silva I, Lin K, Jackowski AP, Centeno RS, P