open access

Vol 51, No 1 (2017)
Original research articles
Submitted: 2016-08-17
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Hyperdense middle cerebral artery sign as the only radiological manifestation of hyperacute ischemic stroke in computed tomography

Robert Chrzan, Agnieszka Gleń, Andrzej Urbanik
DOI: 10.1016/j.pjnns.2016.10.003
·
Neurol Neurochir Pol 2017;51(1):33-37.

open access

Vol 51, No 1 (2017)
Original research articles
Submitted: 2016-08-17

Abstract

Objectives

The main aim of the study was to find the effect of hyperdense middle cerebral artery sign (HMCAS), as the only admission computed tomography (CT) manifestation of ischemic stroke involving middle cerebral artery (MCA) region, on the extent of stroke measured by Alberta Stroke Program Early CT score (ASPECTS) in the follow-up CT. The secondary aim was to determine the correlation between length of hyperdense MCA segment on admission CT and ASPECTS in follow-up CT.

Methods

The group analyzed consisted of 118 patients with ischemic MCA region stroke, with no early signs of brain tissue ischemia on admission CT, but infarcts confirmed in follow-up CT, with extent evaluated using ASPECTS. For the subgroups: 66 patients with HMCAS present and 52 with HMCAS absent, median ASPECTS values were compared. In the subgroup with HMCAS present, length of hyperdense segment was measured and correlation with ASPECTS was determined.

Results

The median ASPECTS 6 (min. 0, max. 9) in the subgroup with HMCAS present was significantly lower, compared to the score 8.5 (min. 0, max. 9) in the subgroup with HMCAS absent. Moderate correlation between the length of hyperdense segment and ASPECTS was found (R=−0.45).

Conclusion

In patients with ischemic stroke involving MCA region and no early signs of brain tissue ischemia on the admission CT, HMCAS is associated with significantly lower ASPECTS in the follow-up CT. There is moderate correlation between the length of hyperdense MCA segment and ASPECTS.

Abstract

Objectives

The main aim of the study was to find the effect of hyperdense middle cerebral artery sign (HMCAS), as the only admission computed tomography (CT) manifestation of ischemic stroke involving middle cerebral artery (MCA) region, on the extent of stroke measured by Alberta Stroke Program Early CT score (ASPECTS) in the follow-up CT. The secondary aim was to determine the correlation between length of hyperdense MCA segment on admission CT and ASPECTS in follow-up CT.

Methods

The group analyzed consisted of 118 patients with ischemic MCA region stroke, with no early signs of brain tissue ischemia on admission CT, but infarcts confirmed in follow-up CT, with extent evaluated using ASPECTS. For the subgroups: 66 patients with HMCAS present and 52 with HMCAS absent, median ASPECTS values were compared. In the subgroup with HMCAS present, length of hyperdense segment was measured and correlation with ASPECTS was determined.

Results

The median ASPECTS 6 (min. 0, max. 9) in the subgroup with HMCAS present was significantly lower, compared to the score 8.5 (min. 0, max. 9) in the subgroup with HMCAS absent. Moderate correlation between the length of hyperdense segment and ASPECTS was found (R=−0.45).

Conclusion

In patients with ischemic stroke involving MCA region and no early signs of brain tissue ischemia on the admission CT, HMCAS is associated with significantly lower ASPECTS in the follow-up CT. There is moderate correlation between the length of hyperdense MCA segment and ASPECTS.

Get Citation

Keywords

Hyperacute cerebral ischemic stroke, Hyperdense middle cerebral artery sign, Alberta Stroke Program Early Computed Tomography Score, Computed tomography

About this article
Title

Hyperdense middle cerebral artery sign as the only radiological manifestation of hyperacute ischemic stroke in computed tomography

Journal

Neurologia i Neurochirurgia Polska

Issue

Vol 51, No 1 (2017)

Pages

33-37

DOI

10.1016/j.pjnns.2016.10.003

Bibliographic record

Neurol Neurochir Pol 2017;51(1):33-37.

Keywords

Hyperacute cerebral ischemic stroke
Hyperdense middle cerebral artery sign
Alberta Stroke Program Early Computed Tomography Score
Computed tomography

Authors

Robert Chrzan
Agnieszka Gleń
Andrzej Urbanik

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