Evaluation of MR cisternography of the cerebellopontine angle using a balanced fast-field-echo sequence: preliminary findings.
We evaluated the feasibility of MR cisternography by the balanced fast-field-echo (bFFE) sequence, comparing with that by a turbo-spin-echo (TSE) sequence, for cerebellopontine angle lesions on a 1.5-T imager (Gyroscan Intera, Philips, Best, The Netherlands). The bFFE MR cisternograms depicted target cranial nerves with less cerebrospinal fluid pulsation artifacts than TSE cisternograms and visualized an acoustic schwannoma in 6 of 44 patients with suspicion and a causative vessel of hemifacial spasm in all of 3 patients in a short scanning time (1 min 53 s). The bFFE sequence can be promising for MR cisternography in the diagnosis of cerebellopontine angle lesions.
Tsuchiya
Kazuhiro
K
Department of Radiology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, 181-8611 Tokyo, Japan. tsuchiyak-kyr@umin.ac.jp
Aoki
Chinatsu
C
Hachiya
Junichi
J
D000293:Adolescent; D000328:Adult; D000368:Aged; D002530:Cerebellopontine Angle / Q000473:pathology; D002648:Child; D003056:Cochlear Nerve / Q000473:pathology; D005154:Facial Nerve / Q000473:pathology; D005155:Facial Nerve Diseases / Q000175:diagnosis*; D005260:Female; D019569:Hemifacial Spasm / Q000175:diagnosis*; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation*; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000175:diagnosis*; D009464:Neuroma, Acoustic / Q000175:diagnosis*; D011011:Pneumoencephalography / Q000295:instrumentation*; D012016:Reference Values; D012680:Sensitivity and Specificity