Dynamic contrast enhanced magnetic resonance imaging findings of mass lesions of the pontocerebellar angle
Küçük Resim Yok
Dosyalar
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Kulak Burun Boğaz İhtisas Dergisi
Erişim Hakkı
info:eu-repo/semantics/embargoedAccess
Özet
The differential diagnosis of mass lesions of the pontocerebellar angle is not always possible by conventional magnetic resonance imaging (MRI). In this study, we investigated the role of dynamic contrast-enhanced MRI in the differential diagnosis of acoustic neurinoma, meningioma, and paraganglioma.
Twelve patients (8 females, 4 males; mean age 47.5 years; range 8 to 71 years) whose diagnoses were acoustic neurinoma (n=3), paraganglioma (n=5), and meningioma (n=4) were evaluated by simultaneous conventional and dynamic contrast-enhanced MRI. Prior to postcontrast T1-weighted images, dynamic MRI was obtained. On these images, maximum contrast enhancement (Cmax) and time to peak enhancement (Tmax) were calculated at 15 different time points. Time-signal intensity curve patterns of the lesions were compared.
According to the four main time-signal intensity curve patterns described in the literature, acoustic neurinomas, meningiomas, and paragangliomas exhibited type C, type A-B, and type A curve patterns, respectively.
Our results suggest that dynamic contrast MRI may have an additional but limited role in the differential diagnosis of extra-axial intracranial tumors such as those of the pontocerebellar angle.
Açıklama
Anahtar Kelimeler
Kaynak
Kulak Burun Boğaz İhtisas Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
17
Sayı
4
Künye
Fırat, A. K. Karakaş, M. H. Kahraman, B. Fırat, Y. Altınok, T. Kızılay, A. (2007). Dynamic contrast enhanced magnetic resonance imaging findings of mass lesions of the pontocerebellar angle. Kulak Burun Boğaz İhtisas Dergisi. 17(4):217-223.
