Yıl: 2007 Cilt: 13 Sayı: 5 Sayfa Aralığı: 310 - 318 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme

Öz:
AMAÇ: Diffüzyon ağırlıklı MRG (DA-MRG) MS’de aktif plak tanımlaması yanında, bu lezyonları iskemik lezyonlardan da objektif verilerle ayırd edebilme şansını vermektedir. AMAÇLAR: Bu çalışmada MS olgularında, plaklar ve normal görünümlü beyaz cevherdeki diffüzyon değişiklikleri araştırılmıştır.YÖNTEMLER: Mc Donald’s kriterleri’ne göre MS tanısı alan 45 hasta çalışmaya alındı. Kranial MR incelemede PD-T2 transvers, T2 sagittal, T2 flair transvers, diffüzyon ağırlıklı MR ve ADC haritası, Heavy IR-T1 transvers, T1 transvers, postkontrast T1 transvers görüntülemelerdeki lezyon sayısı, tüm sekanslarda görülme oranları, kontrastlanma özellikleri değerlendirildi. Diffüzyon ağırlılı MR ve ADC haritasında lezyonların görünüm özellikleri belirlendi. BULGULAR: Klinik formlarda, normal görünümlü beyaz cevherden ölçülen ortalama ADC değerleri RRMS’de 0.79 ± 0.15x10-3 mm2/sn, PPMS’de 0.8 ± 0.15x10-3 mm2/sn, SPMS’de 0.82 ± 0.15x10-3 mm2/sn bulundu. Klinik formlar arasındaki normal görünümlü beyaz cevherden ölçülen ortalama ADC değeri farklılığı istatistiksel olarak anlamlıydı (p<0.05). T1 izointens lezyonlardan ölçülen ortalama ADC değeri, RRMS’de O.97 ± 0.15x10-3 mm2/sn, PPMS’de 0.98 ± 0.15x10-3 mm2/sn, SPMS’de 0.99 ± 0.15x10-3 mm2/sn olup gruplar arasındaki farklılık istatistiksel olarak anlamlı değildi (p>0.05). T1 hipointens lezyonlardan ölçülen ortalama ADC değeri, RRMS’de 1.106 ± 0.15x10-3 mm2/sn, PPMS’de 1.119 ± 0.15x10-3 mm2/sn, SPMS’de 1.132 ± 0.15x10-3 mm2/sn bulundu ve gruplar arasındaki farklılık istatistiksel olarak anlamlıydı (p<0.05). SONUÇ: Çalışmamızdaki tüm olguların DA-MRG’sinde kronik lezyon, akut lezyon ve normal görünümlü beyaz cevherde diffüzyon artışı olduğu görüldü. Akut lezyonlardan ölçülen ortalama ADC değeri 1.062± 0.15x10-3 mm2/sn, T1 hipointens lezyonların ortalama ADC değeri 1.118 ± 0,15x10-3 mm2/sn, T1 izointens lezyonların ise 0.985 ± 0.12x10-3 mm2/sn olarak hesaplandı. T1 hipointens lezyonların ve akut lezyonların ADC değerlerinin anlamlı derecede yüksek olması, bu lezyonlarda oluşan doku hasarının daha fazla olduğunu ortaya çıkaran önemli bir bulgu olarak değerlendirildi.
Anahtar Kelime:

Konular: Nörolojik Bilimler

Diffusion-weighted magnetic Resonance imaging of the brain in multiple sclerosis

Öz:
OBJECTIVE: MRI. Diffusion-weighted MRI (DW-MRI) offers the possibility of differentiating such lesions from ischaemic lesions by using objective data as well as determining active MS plaque in particular. OBJECTIVES: This present study investigated diffusion alterations in MS patients in plaques and the normal-appearing white matter.METHODS: A total of 45 patients had been diagnosed with MS according to Mc Donald&#8217;s criteria were enrolled in the study. Cranial MRI examination consisted of number of lesions in PD/T2 transverse, T2 sagittal, T2 FLAIR transverse, diffusion-weighted MRI and ADC mapping, heavy IR-T1 transverse, T1 transverse, postcontrast T1 transverse imaging, incidence ratio in all sequences as well as assessment of contrasting characteristics. Visual characteristics of the lesions were determined in diffusion-weighted MRI and ADC mapping. RESULTS: Mean ADC values measured in the normal appearing white matter according to clinical forms were as follows: 0.79 ± 0.15x10-3 mm2/sec for RRMS, 0.8 ± 0.15x10-3 mm2/sec PPMS and 0.82 ± 0.15x10-3 mm2/sec for SPMS. The differences between clinical forms in terms of mean ADC values measured in the normal appearing white matter were statistically significant (p<0.05). Mean ADC values measured in T1 isointense lesions were O.97 ± 0.15x10-3 mm2/sec for RRMS, 0.98 ± 0.15x10-3 mm2/sec for PPMS and 0.99 ± 0.15x10-3 mm2/sec for SPMS. The differences between the groups were not statistically significant (p>0.05). Mean ADC values measured in T1 hypointense lesions were 1.106 ± 0.15x10-3 mm2/sec for RRMS, 1.119 ± 0.15x10-3 mm2/sec for PPMS and 1.132 ± 0.15x10-3 mm2/sec for SPMS. The differences between the groups were statistically significant (p<0.05). CONCLUSION: DW-MRI revealed increased diffusion in chronic lesions, acute lesions and normal-appearing white matter in all patients in this present study. Mean ADC value established in acute lesions was 1.062± 0.15x10-3 mm2/sec, while it was 1.118 ± 0,15x10-3 mm2/sec in T1 hypointense lesions and 0.985 ± 0.12x10-3 mm2/sec in T1 isointense lesions. Significantly higher ADC values in T1 hypointense lesions and acute lesions indicated more severe tissue damage in those lesions.
Anahtar Kelime:

Konular: Nörolojik Bilimler
Belge Türü: Makale Makale Türü: Diğer Erişim Türü: Erişime Açık
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APA TERZİ M, ATALAY K, İNCESU L, DİREN B, ONAR M (2007). Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. , 310 - 318.
Chicago TERZİ Murat,ATALAY Köksal,İNCESU Lütfi,DİREN Barış,ONAR Musa Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. (2007): 310 - 318.
MLA TERZİ Murat,ATALAY Köksal,İNCESU Lütfi,DİREN Barış,ONAR Musa Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. , 2007, ss.310 - 318.
AMA TERZİ M,ATALAY K,İNCESU L,DİREN B,ONAR M Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. . 2007; 310 - 318.
Vancouver TERZİ M,ATALAY K,İNCESU L,DİREN B,ONAR M Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. . 2007; 310 - 318.
IEEE TERZİ M,ATALAY K,İNCESU L,DİREN B,ONAR M "Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme." , ss.310 - 318, 2007.
ISNAD TERZİ, Murat vd. "Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme". (2007), 310-318.
APA TERZİ M, ATALAY K, İNCESU L, DİREN B, ONAR M (2007). Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. Türk Nöroloji Dergisi, 13(5), 310 - 318.
Chicago TERZİ Murat,ATALAY Köksal,İNCESU Lütfi,DİREN Barış,ONAR Musa Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. Türk Nöroloji Dergisi 13, no.5 (2007): 310 - 318.
MLA TERZİ Murat,ATALAY Köksal,İNCESU Lütfi,DİREN Barış,ONAR Musa Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. Türk Nöroloji Dergisi, vol.13, no.5, 2007, ss.310 - 318.
AMA TERZİ M,ATALAY K,İNCESU L,DİREN B,ONAR M Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. Türk Nöroloji Dergisi. 2007; 13(5): 310 - 318.
Vancouver TERZİ M,ATALAY K,İNCESU L,DİREN B,ONAR M Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme. Türk Nöroloji Dergisi. 2007; 13(5): 310 - 318.
IEEE TERZİ M,ATALAY K,İNCESU L,DİREN B,ONAR M "Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme." Türk Nöroloji Dergisi, 13, ss.310 - 318, 2007.
ISNAD TERZİ, Murat vd. "Multipl sklerozda difüzyon ağırlıklı beyin manyetik rezonans görüntüleme". Türk Nöroloji Dergisi 13/5 (2007), 310-318.