Advanced Imaging Assessment of Posterior Circulation Stroke Before and After Endovascular Intervention

Khan, Asif Ali; Gatlin, J.L.; Uschmann, Hartmut; Luzardo, Gustavo; Buciuc, Razvan; Khan, Majid

doi:10.1007/s12028-010-9419-1

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…However, this thinking is outdated with the availability of whole-brain-coverage 'mega-slice' CT scanners such as the Toshiba 320-slice CT scanner. 20 , 21 Although this has only been addressed in case reports so far, 24 , 25 based on our experience, we can not only identify patients with posterior circulation ischemia but also we may be able to identify the presence of a favorable penumbral pattern. However, the criteria for a favorable penumbral pattern may be different both in terms of volume of core and penumbra and the perfusion thresholds used to derive them.…”

Section: Other Ctp Patternsmentioning

confidence: 93%

Perfusion Patterns of Ischemic Stroke on Computed Tomography Perfusion

Lin

Bivard

2013

J Stroke

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CT perfusion (CTP) has been applied increasingly in research of ischemic stroke. However, in clinical practice, it is still a relatively new technology. For neurologists and radiologists, the challenge is to interpret CTP results properly in the context of the clinical presentation. In this article, we will illustrate common CTP patterns in acute ischemic stroke using a case-based approach. The aim is to get clinicians more familiar with the information provided by CTP with a view towards inspiring them to incorporate CTP in their routine imaging workup of acute stroke patients.

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Section: Other Ctp Patternsmentioning

confidence: 93%

Perfusion Patterns of Ischemic Stroke on Computed Tomography Perfusion

Lin

Bivard

2013

J Stroke

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“…However, this sign is insensitive, found in less than a third of all basilar territory strokes and produces false‐positive findings in the presence of increased haematocrit and heavy calcification . There is a paucity of data on the utility of CT perfusion imaging in the setting of PCS, especially with brainstem infarcts, and therefore, it has limited application . Extracranial vertebral artery (VA) imaging using CT angiography is becoming increasingly recognised in the evaluation of PCS, given that patients with both symptomatic and asymptomatic VA stenosis have an increased risk of PCS …”

Section: Targeted Bedside Oculomotor Examination Using Hintsmentioning

confidence: 99%

Acute evaluation of the acute vestibular syndrome: differentiating posterior circulation stroke from acute peripheral vestibulopathies

Tsang

Chen

Paine

2017

Internal Medicine Journal

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This review article aims to provide an evidence-based approach to evaluating the patient who presents with acute prolonged, spontaneous vertigo in the context of the acute vestibular syndrome (AVS). Differentiation of posterior circulation stroke (PCS) presenting as an AVS has been regarded as an important diagnostic challenge for physicians involved in acute care. Current evidence suggests that a targeted approach to history taking and physical examination with emphasis on the oculomotor examination, more specifically the HINTS (Head Impulse/Nystagmus/Test-of-skew) examination battery, yields a higher sensitivity for the diagnosis of PCS than even standard magnetic resonance imaging with diffusion-weighted imaging. However, most studies have only validated the utility of the HINTS examination when performed by experts, who interpret the most powerful component of HINTS, namely the head impulse test (HIT), considerably different to the novice. Several investigations useful in the differentiation of the AVS are becoming more accessible and portable, such as videooculography with Frenzel goggles and video head impulse testing (vHIT), which allows for the quantitative assessment of the HIT. In clinical practice, vHIT has already become accepted as standard of care in the evaluation of AVS.

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Application of 3D-PCASL combined with t-ASL and MRA in the diagnosis of patients with isolated vertigo induced by posterior circulation ischemia

Xie,

Mo,

Liu

et al. 2024

Magnetic Resonance Imaging

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Advanced Imaging Assessment of Posterior Circulation Stroke Before and After Endovascular Intervention

Abstract: Perfusion-computed tomography can successfully be used to define cerebral ischemia and infarction within the posterior fossa and aid in decisions to proceed with neurointervention.

Cited by 4 publications

References 10 publications

Perfusion Patterns of Ischemic Stroke on Computed Tomography Perfusion

Perfusion Patterns of Ischemic Stroke on Computed Tomography Perfusion

Acute evaluation of the acute vestibular syndrome: differentiating posterior circulation stroke from acute peripheral vestibulopathies

Application of 3D-PCASL combined with t-ASL and MRA in the diagnosis of patients with isolated vertigo induced by posterior circulation ischemia

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