Role of Diffusion-weighted Mr in Differential Diagnosis of Intracranial Cystic Lesions
Yükleniyor...
Dosyalar
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Aim: The purpose of this study was to evaluate the role of diffusion-weighted imaging (DWI) in characterizing cerebral cystic lesions. The usefulness of the apparent diffusion coefficient (ADC) map in lesion characterization was also evaluated. Methods: We compared the findings of conventional MR images with those of DWI: 63 cystic masses in 48 patients were examined with routine MR imaging and echo-planar DWI. The routine MR imaging included at least the axial T2- and T1-weighted sequences, and post-contrast T1 axial sequences. The DWI included an echo-planar spin-echo sequence with three values (0, 500 and 1000 s/mm2) sensitizing gradient in the x, y, z direction, and it obtained an ADC map. Results: The sensitivity of DWI for differentiating abscesses from primary brain tumours was 100%; for differentiating abscesses from metastatic tumours was 73%; for differentiating benign from malignant lesions was 90%. Conclusion: Although some metastatic lesions may appear hyperintense on DWI thus imitating an abscess, evaluation of the lesions with both DWI and conventional MRI may have an important contribution to the differentiation of tumours from abscesses.
Açıklama
Anahtar Kelimeler
Brain abscess, Brain neoplasms, Diffusion magnetic resonance imaging
Kaynak
Clinical Radiology
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
60
Sayı
3
Künye
Bükte, Y., Paksoy, Y., Genç, E., Uca, A.U., (2005). Role of Diffusion-weighted Mr in Differential Diagnosis of Intracranial Cystic Lesions. Clinical Radiology, 60(3), 375-383. DOI:10.1016/j.crad.2004.05.019
