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Indian Journal of Neurosurgery 2016; 05(01): 044-046
DOI: 10.1055/s-0036-1572367
Techniques in Neurosurgery
Neurological Surgeons' Society of India

Susceptibility Weighted Imaging: A Novel Method to Determine the Etiology of Aqueduct Stenosis

Chanabasappa Chavadi
1   Department of Radiodiagnosis, Kasturba Medical College, Manipal University, Mangalore, India
,
Keerthiraj Bele
1   Department of Radiodiagnosis, Kasturba Medical College, Manipal University, Mangalore, India
,
Anand Venugopal
1   Department of Radiodiagnosis, Kasturba Medical College, Manipal University, Mangalore, India
,
Santosh Rai
1   Department of Radiodiagnosis, Kasturba Medical College, Manipal University, Mangalore, India
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Publikationsverlauf

08. April 2015

18. November 2015

Publikationsdatum:
19. Februar 2016 (online)

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Abstract

The stenosis of aqueduct of Sylvius (AS) is a very common cause of obstruction to cerebrospinal fluid. Multiple etiologies are proposed for this condition. Because treatment is specific for correctable disorder, assessment of etiology gains importance. A case of pediatric hydrocephalus was diagnosed with stenosis of AS on magnetic resonance imaging (MRI). Susceptibility-weighted imaging (SWI) demonstrated blooming in the distal aqueduct and lateral ventricle, which was not seen on routine MRI sequences. The findings suggest that old hemorrhage is a cause of chemical arachnoiditis and adhesions causing aqueduct stenosis and hydrocephalus. To our knowledge literature is very scarce, wherein SWI is being used to confirm blood products as a cause of aqueduct stenosis; hence SWI should be routine protocol in imaging of pediatric hydrocephalus. Etiology, clinical presentation, role of imaging, and, in particular, SWI in evaluation of aqueductal stenosis is discussed.

Keywords

susceptibility weighted imaging - aqueductal stenosis - magnetic resonance imaging - hydrocephalus
 

  • References

  • 1 Cinalli G, Spennato P, Nastro A , et al. Hydrocephalus in aqueductal stenosis. Childs Nerv Syst 2011; 27 (10) 1621-1642
    CrossrefPubMedSuche in Google Scholar
  • 2 Robertson IJ, Leggate JRS, Miller JD, Steers AJ. Aqueduct stenosis—presentation and prognosis. Br J Neurosurg 1990; 4 (2) 101-106
    CrossrefPubMedSuche in Google Scholar
  • 3 Haacke EM, Xu Y, Cheng YC, Reichenbach JR. Susceptibility weighted imaging (SWI). Magn Reson Med 2004; 52 (3) 612-618
    CrossrefPubMedSuche in Google Scholar
  • 4 Boop FA. Posthemorrhagic hydrocephalus of prematurity. In: Cinalli C, Maixner WJ, Sainte-Rose C, eds. Pediatric Hydrocephalus. Milan, Germany: Springer; 2004: 121-131
    Suche in Google Scholar
  • 5 Russell DS. Observations on the pathology of hydrocephalus. Medical Research Council Special Report Series No. 265. London, UK: His Majesty's Stationery Office; 1949
    Suche in Google Scholar
  • 6 Brunelle F. Modern imaging of hydrocephalus. In: Cinalli C, Maixner WJ, Sainte-Rose C, eds. Pediatric Hydrocephalus. Milan, Germany: Springer; 2004: 79-93
    Suche in Google Scholar
  • 7 Citrin CM, Sherman JL, Gangarosa RE, Scanlon D. Physiology of the CSF flow-void sign: modification by cardiac gating. AJNR Am J Neuroradiol 1986; 7: 1021-1024
    PubMedSuche in Google Scholar
  • 8 Laitt RD, Mallucci CL, Jaspan T, McConachie NS, Vloeberghs M, Punt J. Constructive interference in steady-state 3D Fourier-transform MRI in the management of hydrocephalus and third ventriculostomy. Neuroradiology 1999; 41 (2) 117-123
    CrossrefPubMedSuche in Google Scholar
  • 9 Stoquart-El Sankari S, Lehmann P, Gondry-Jouet C , et al. Phase-contrast MR imaging support for the diagnosis of aqueductal stenosis. AJNR Am J Neuroradiol 2009; 30 (1) 209-214
    PubMedSuche in Google Scholar
  • 10 Lapras C, Bret P, Patet JD, Huppert J, Honorato D. Hydrocephalus and aqueduct stenosis. Direct surgical treatment by interventriculostomy (aqueduct canulation). J Neurosurg Sci 1986; 30 (1–2) 47-53
    PubMedSuche in Google Scholar