Infratentorial infarction: Correlation of MR findings with neurological and angiographical features

Yin, Weimin; Nagata, Ken; Satoh, Yuichi; Yokoyama, Eriko; Watahiki, Yasuhito; Yuya, Hiromichi; Hirata, Yutaka; Ogawa, Toshihide; Inugami, A

doi:10.1080/01616412.1994.11740217

Cited by 6 publications

(2 citation statements)

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“…Cerebellar watershed infarcts remain less well-described, with scattered case reports and case series describing predominantly embolic watershed infarcts in adults. [3][4][5][6] A few authors have emphasized the distinction between superficial cerebellar borderzone embolic infarcts and deep cerebellar watershed infarcts, the latter related to hypoperfusion and centered at the interface between the penetrating arteries of the cerebellar arteries. [7][8][9][10] Although some authors have asserted that deep watershed infarcts predominantly affect the deep cerebellar white matter, several lines of evidence suggest that focal injury to the gray matter at the depth of the cerebellar fissures is, in fact, the expected pattern.…”

Section: Discussionmentioning

confidence: 99%

Cerebellar Watershed Injury in Children

Wright¹,

Shaw²,

Ishak³

et al. 2020

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE: Focal signal abnormalities at the depth of the cerebellar fissures in children have recently been reported to represent a novel pattern of bottom-of-fissure dysplasia. We describe a series of patients with a similar distribution and appearance of cerebellar signal abnormality attributable to watershed injury.MATERIALS AND METHODS: Twenty-three children with MR imaging findings of focal T2 prolongation in the cerebellar gray matter and immediate subjacent white matter at the depth of the fissures were included. MR imaging examinations were qualitatively analyzed for the characteristics and distribution of signal abnormality within posterior fossa structures, the presence and distribution of volume loss, the presence of abnormal contrast enhancement, and the presence and pattern of supratentorial injury. RESULTS: T2 prolongation was observed at the depths of the cerebellar fissures bilaterally in all 23 patients, centered at the expected location of the deep cerebellar vascular borderzone. Diffusion restriction was associated with MR imaging performed during acute injury in 13/ 16 patients. Five of 23 patients had prior imaging, all demonstrating a normal cerebellum. The etiology of injury was hypoxic-ischemic injury in 17/23 patients, posterior reversible encephalopathy syndrome in 3/23 patients, and indeterminate in 3/23 patients. Twenty of 23 patients demonstrated an associated classic parasagittal watershed pattern of supratentorial cortical injury. Injury in the chronic phase was associated with relatively preserved gray matter volume in 8/15 patients, closely matching the published appearance of bottom-of-fissure dysplasia. CONCLUSIONS:In a series of patients with findings similar in appearance to the recently described bottom-of-fissure dysplasia, we have demonstrated a stereotyped pattern of injury attributable to cerebellar watershed injury.

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Section: Discussionmentioning

confidence: 99%

Cerebellar Watershed Injury in Children

Wright¹,

Shaw²,

Ishak³

et al. 2020

AJNR Am J Neuroradiol

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“…Studies were excluded from the analysis of MR (Table 12) because the primary purposes were: descriptions of clinicotopography or specific MRI characteristics (eight studies, 990 patients), 253,254,256,[259][260][261]263,264 explorations around the use of contrast agent or imaging parameters (five studies, 167 patients), 251,252,255,257,262 and one study (seven patients) highlighting the important issue of negative MR scans in clinically definite stroke. 258 Studies were excluded from the analysis of CT and MR because they failed to give details on sensitivity or the patients were not examined by a stroke physician or neurologist ( Table 13).…”

Section: Studies Of Cerebral Infarctionmentioning

confidence: 99%

What is the best imaging strategy for acute stroke?

Wardlaw

Keir

Seymour

et al. 2005

Int J Technol Assess Health Care

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