Dynamic contrast-enhanced magnetic resonance imaging findings of mass lesions of the pontocerebellar angle
Küçük Resim Yok
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
OBJECTIVES: 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. PATIENTS AND METHODS: 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. RESULTS: 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. CONCLUSION: 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
contrast medium, adolescent, adult, aged, article, brain tumor, child, evaluation, female, human, male, meningioma, middle aged, neuroma, nuclear magnetic resonance imaging, paraganglioma, pathology, pons angle, prediction and forecasting, Adolescent, Adult, Aged, Brain Neoplasms, Cerebellopontine Angle, Child, Contrast Media, Female, Humans, Magnetic Resonance Imaging, Male, Meningioma, Middle Aged, Neuroma, Acoustic, Paraganglioma, Predictive Value of Tests
Kaynak
Kulak burun bo?az ihtisas dergisi : KBB = Journal of ear, nose, and throat
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
17
Sayı
4
