Assessment of 3D T2-weighted high-sampling-efficiency technique (SPACE) for detection of cerebellar tonsillar motion: New useful sign for Chiari I malformation

UÇAR M. , TOKGÖZ N. , Koc A. M. , Kilic K., BÖRCEK A. Ö. , ÖNER A. Y. , ...Daha Fazla

Clinical Imaging, cilt.39, sa.1, ss.42-50, 2015 (SCI Expanded İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 39 Konu: 1
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.clinimag.2014.08.011
  • Dergi Adı: Clinical Imaging
  • Sayfa Sayıları: ss.42-50


© 2015 Elsevier Inc.Objective: To describe tonsillar blackout sign (TBS) on three-dimensional (3D)-SPACE, evaluate its performance in identifying Chiari malformation (CM1) as diagnostic marker, and investigate its role in differentiation of symptomatic and asymptomatic CM1. Methods: One-hundred fifty-six patients were divided into two groups based on caudal displacement of cerebellar tonsils: CM1 (Group I) and non-CM1 (Group II). Group I was subclassified as symptomatic and asymptomatic by a neurosurgeon. Two radiologists evaluated TBS and cerebrospinal fluid flow abnormality. Results: All subjects presenting TBS had CM1. Difference in presence of TBS between Group I and Group II was highly significant (P<.001).Grading of TBS in symptomatic patients was significantly higher than that in asymptomatic patients (P<.001). Conclusion: TBS is highly suggestive of CM1 and potentially useful in differentiation of symptomatic and asymptomatic CM1.