Benign ve malign sinonazal kitlelerin ayrımında difüzyon MR görüntüleme

Abstract

Amaç: Sinonazal yerleşimli kitlelerde Apparent Diffusion Coefficient (ADC-Görünüşteki Difüzyon Katsayısı) değerlerini ölçerek benign ve malign lezyonların ayrımını yapmayı amaçladık. Yöntemler: Çalışmamızda Ekim 2011-Temmuz 2014 tarihleri arasında radyoloji ünitemize sinonazal kitle ön tanısı ile gönderilen ve yapılan MRG tetkikinde sinonazal kitle saptanan yaşları 16 ile 81 arasında değişen, 14 erkek 5 kadın toplam 19 hasta retrospektif olarak değerlendirildi. ADC değeri ölçümleri histopatolojik tanılarla karşılaştırıldı. Bulgular: Malign lezyonların ortalama ADC değeri (0.99±0.39) x 10-3 mm2/sn (n=8), benign lezyonların ortalama ADC değeri (1.65±0.55) x 10-3 mm2/sn (n=11) ölçüldü. Benign ve malign lezyonlar arasında istatistiksel olarak anlamlı fark saptandı (p=0.012). Sonuç: Malign sinonazal tümörlerin ADC değerlerini benign lezyonlara göre istatistiksel olarak anlamlı düzeyde düşük bulduk. ADC değerinin ölçümü benign ve malign sinonazal lezyonların ayrımında faydalıdır ve rutin incelemenin bir parçası olarak kullanılmalıdır.

Keywords

• Difüzyon MRG, paranazal sinüs, tümör

Discrimination of benign and malign sinonasal masses with diffusion-weighted MR imaging

Abstract

Objective: Our purpose was to discriminating benign and malignant sinonasal masses with apparent diffusion coefficient (ADC) values. Methods: We retrospectively evaluated magnetic resonance (MR) images of 14 men and 5 women aged between 16 and 81 who had sinonasal masses between October 2011 and July 2014 at our radiology department. ADC values of the masses correlated with histopathological findings. Results: The mean ADC value of malignant lesions was (0.99±0.39) x 10-3 mm2/sec (n=8), mean ADC value of benign lesions was (1.65±0.55) x 10-3 mm2/sec (n=11). We have found statistically significant difference between ADC values of benign and malignant lesions. Conclusion: We found the mean ADC values of malignant lesions less than benign lesions and the difference was statistically significant. The mean value of ADC is useful for differentiating between benign and malignant sinonasal lesions and it can be used as a part of routine examination.

Keywords

• Diffusion MRG, paranasal sinus, tumor

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