Role of multidetector CT in the recognition of hyperdense middle cerebral artery sign (HMCAS) in patients with acute cerebral ischaemia: correlation with DWI-MRI sequences and clinical data

Romano, Andrea; Biraschi, Francesco; Tavanti, Francesca; Beccia, Mario; Dilisi, Filomena; Castrignanò, Antonella; Giuliani, Giorgia; Pierallini, A.; Fantozzi, L. M.; Rasura, Maurizia; Bozzao, Alessandro

doi:10.1007/s11547-014-0424-x

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…The ongoing controversy on clinical reliability and diagnostic accuracy of HMCAS is because of the attenuation variability in different infarction sizes, at different parts of the MCA territory, and at different symptom onset times. Romano et al detected HMCAS in more than 2/3 of the patients with an infarct volume greater than 2.5 cm on brain parenchyma by visual inspection 20 . Kim et al reported that the mean thrombus volumes were significantly higher in patients with HMCAS, both in M1 and M2 MCA branches 21 .…”

Section: Discussionmentioning

confidence: 99%

“…Romano et al detected HMCAS in more than 2/3 of the patients with an infarct volume greater than 2.5 cm on brain parenchyma by visual inspection. 20 Kim et al reported that the mean thrombus volumes were significantly higher in patients with HMCAS, both in M1 and M2 MCA branches. 21 HMCAS is associated with larger infarction size, severe clinical presentation, and poor outcome.…”

Section: Ta B L E 2 Comparison Of the Baseline Characteristics Of The...mentioning

confidence: 98%

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The middle cerebral artery density and ratio for the diagnosis of acute ischaemic stroke in the Emergency Department

Baykal¹,

Akoğlu

Akoglu³

et al. 2021

Int J Clin Pract

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Acute stroke is one of the leading causes of death and adult disability, with haemorrhagic and ischaemic variants. 1 Neuroradiological examinations have been the cornerstone of the diagnosis of both ischaemic and haemorrhagic stroke. Non-contrast computed tomography (ncCT) is often the primary, inexpensive, fast and most available imaging modality for patients with clinical symptoms of acute stroke and haemorrhagic stroke may be diagnosed instantly in most cases. 2 However, the diagnosis of acute ischaemic stroke (AIS) is a bit more challenging.Radiological findings of AIS on ncCT are subtle and complex to recognise compared with haemorrhagic stroke. Therefore, early ischaemic changes (EICs) on ncCT have been systematically reviewed. 3 The middle cerebral artery (MCA) occlusion is the most common and debilitating form of AIS. Early detection and intervention have a significant prognostic value as the MCA infarction is related to poor outcomes and increased mortality. 4 Therefore, newer technologies and techniques to identify the occlusion of MCA or other arteries have been developed.According to the recent guidelines, ncCT and computed tomography angiogram (CTA) are the most recommended, practical and feasible

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Section: Discussionmentioning

confidence: 99%

Section: Ta B L E 2 Comparison Of the Baseline Characteristics Of The...mentioning

confidence: 98%

The middle cerebral artery density and ratio for the diagnosis of acute ischaemic stroke in the Emergency Department

Baykal¹,

Akoğlu

Akoglu³

et al. 2021

Int J Clin Pract

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Computed Tomography Angiography-Based Thrombus Radiomics for Predicting the Time Since Stroke Onset

Cheng

Wan

et al. 2023

Academic Radiology

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Usefulness of Iterative Reconstruction Method in the Field of Acute Cerebral Infarction Computed Tomography Examination

Tada

Uchida²,

Kanayama

et al. 2015

Nippon Hoshasen Gijutsu Gakkai Zasshi

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We evaluated clinical images to investigate the usefulness of adaptive iterative dose reduction algorithm (AIDR) in the field of acute cerebral infarction. We did receiver operating characteristic (ROC) analysis by 4 radiologists using 50 clinical images (abnormal case=24, normal case=26) which were reconstructed by AIDR and filtered back projection (FBP). The area under the curve (AUC) value from average ROC curve of observers were 0.79 with the FBP and 0.87 with the AIDR (P=0.31). The standard deviation of AUC was 0.06 with the FBP and 0.03 with the AIDR. More in detail, the AUC value of Expert group (over 10 years of experience) increased to 0.06 by using AIDR compared with FBP method. On the other hand, in Beginner group (less than 10 years of experience) there was 0.09 increase. Therefore, there was some possibility to reduce the variation of diagnostic accuracy among observer and the diagnostic accuracy improvement of the doctor in a few Experience group, by using AIDR for acute cerebral infarction computed tomography (CT) examination.

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Role of multidetector CT in the recognition of hyperdense middle cerebral artery sign (HMCAS) in patients with acute cerebral ischaemia: correlation with DWI-MRI sequences and clinical data

Abstract: Our study demonstrated that HMCAS obtained with multidetector CT can be detected in more than 70 % of patients with large acute ischaemic lesion and it is an unfavourable prognostic sign.

Cited by 3 publications

References 17 publications

The middle cerebral artery density and ratio for the diagnosis of acute ischaemic stroke in the Emergency Department

The middle cerebral artery density and ratio for the diagnosis of acute ischaemic stroke in the Emergency Department

Computed Tomography Angiography-Based Thrombus Radiomics for Predicting the Time Since Stroke Onset

Usefulness of Iterative Reconstruction Method in the Field of Acute Cerebral Infarction Computed Tomography Examination

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