Sonography of extraaxial fluid in neurologically normal infants with head circumference greater than or equal to the 95th percentile for age.

Fessell, David; Frankel, Daniel A.; Wolfson, Wayne P.

doi:10.7863/jum.2000.19.7.443

Cited by 19 publications

(15 citation statements)

References 18 publications

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“…As no consensus exists, the definition of a normal subarachnoid space width varies in the literature: in infants (below 1 year of age) the upper limits of normal craniocortical width range from 4 to 10 mm [56, 59, 94, 99, 138] and in neonates from 3.3 to 5 mm [58, 111, 120]. The defined upper limit of the normal interhemispheric fissure width ranges from 6 to 8.5 mm, while the similar spectrum for sinocortical width is 2 to 10 mm [56, 59, 69, 94, 99, 131].…”

Section: Resultsmentioning

confidence: 99%

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Benign external hydrocephalus: a review, with emphasis on management

et al. 2011

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Benign external hydrocephalus in infants, characterized by macrocephaly and typical neuroimaging findings, is considered as a self-limiting condition and is therefore rarely treated. This review concerns all aspects of this condition: etiology, neuroimaging, symptoms and clinical findings, treatment, and outcome, with emphasis on management. The review is based on a systematic search in the Pubmed and Web of Science databases. The search covered various forms of hydrocephalus, extracerebral fluid, and macrocephaly. Studies reporting small children with idiopathic external hydrocephalus were included, mostly focusing on the studies reporting a long-term outcome. A total of 147 studies are included, the majority however with a limited methodological quality. Several theories regarding pathophysiology and various symptoms, signs, and clinical findings underscore the heterogeneity of the condition. Neuroimaging is important in the differentiation between external hydrocephalus and similar conditions. A transient delay of psychomotor development is commonly seen during childhood. A long-term outcome is scarcely reported, and the results are varying. Although most children with external hydrocephalus seem to do well both initially and in the long term, a substantial number of patients show temporary or permanent psychomotor delay. To verify that this truly is a benign condition, we suggest that future research on external hydrocephalus should focus on the long-term effects of surgical treatment as opposed to conservative management.

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Section: Resultsmentioning

confidence: 99%

“…The defined upper limit of the normal interhemispheric fissure width ranges from 6 to 8.5 mm, while the similar spectrum for sinocortical width is 2 to 10 mm [56, 59, 69, 94, 99, 131]. Sinocortical width is defined as the distance from the lateral wall of the superior sagittal sinus to the surface of the cerebral cortex [56, 99]. …”

Section: Resultsmentioning

confidence: 99%

Benign external hydrocephalus: a review, with emphasis on management

et al. 2011

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“…No international consensus exists concerning limits of enlargement of the subarachnoid space, and the upper limits for CCW in infants (below one year of age) range from 3.3 to 10 mm Prassopoulos et al (1995); Fessell et al (2000); Lam et al (2001); Libicher & Troger (1992); Frankel et al (1998). …”

Section: Methodsmentioning

confidence: 99%

Childhood hydrocephalus – is radiological morphology associated with etiology

2013

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BackgroundClinicians use a non-standardized, intuitive approach when correlating radiological morphology and etiology of hydrocephalus.ObjectiveTo investigate the possibility of categorizing hydrocephalus in different groups based on radiological morphology, to analyze if these proposed groups relate to the location and type of underlying pathology, and if this can be of use in clinical practice.Methods and materialA retrospective cohort study including 110 hydrocephalus patients below age seven seen at Rigshospitalet University Hospital, Denmark. Their neuro-imaging was analyzed and categorized based on radiological morphology. Patient charts were reviewed and possible association between the underlying cause of hydrocephalus and the proposed groups of radiological morphology was evaluated.ResultsRadiological appearance varied distinctively between patients. A classification system was created based on the morphology of the lateral ventricles from axial sections at the level of maximal ventricular width. No statistically significant association was found between the suggested groups of morphology and the location and type of pathology.ConclusionDistinguishable patterns of radiological morphology exist. The proposed classification system cannot in its current form indicate type and location of the underlying cause of hydrocephalus. A clear need exists for a standardized approach when evaluating etiology and treatment options based on radiological results.

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“…The largest extra-axial fluid collection noted in any coronal plane was measured to determine the CCW and SCW. 21 …”

Section: Radiological Measurementsmentioning

confidence: 97%