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Diagnostics
Special Issues
Imaging in Acute Stroke
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Imaging in Acute Stroke

A special issue of Diagnostics (ISSN 2075-4418). This special issue belongs to the section "Medical Imaging and Theranostics".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 3632

Special Issue Editor

Prof. Dr. A-Hyun Cho

E-Mail Website
Guest Editor
Department of Neurology, The Catholic University of Korea St.Mary's Hospital, Yeo-ui-do Dong, Seoul, Korea
Interests: stroke; vascular dementia; Alzheimer's dementia; headache; dizziness

Special Issue Information

Dear Colleagues,

It is very important to make a precise diagnosis and evaluation of acute ischemic stroke patients. The treatment time window is very limited for the better prognosis of acute ischemic stroke patients. Through history taking, neurological examination, blood test, and imaging, we can decide on effective thrombolytic treatment. Among those processes, acute stroke imaging has become the most important and exact method to diagnose the parenchymal damage and perfusion status. Acute stroke imaging includes MRI, CT, MR angiography, CT perfusion, MR perfusion, 4-vessel angiography, and sonographic evaluation with transcranial Doppler and carotid duplex ultrasonography. Multimodal imaging, which is composed of the above imaging methods, is currently used. Artificial intelligence (AI) technology may be helpful in the detection of stroke lesion and vessel occlusion. In this issue on “Acute Stroke Imaging”, we will cover recent research regarding the imaging of acute ischemic stroke patients, which includes the diagnosis of stroke, selection of thrombolysis candidates with imaging, prediction of prognosis with imaging, and stroke diagnosis with imaging analyzed by AI technology. 

Prof. Dr. A-Hyun Cho
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Diagnostics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • acute stroke imaging
  • artificial intelligence
  • thrombolysis

Published Papers (2 papers)

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Review

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17 pages, 341 KiB  
Review
Perfusion Status in Lacunar Stroke: A Pathophysiological Issue
by Marialuisa Zedde, Manuela Napoli, Ilaria Grisendi, Federica Assenza, Claudio Moratti, Franco Valzania and Rosario Pascarella
Diagnostics 2023, 13(12), 2003; https://doi.org/10.3390/diagnostics13122003 - 8 Jun 2023
Cited by 4 | Viewed by 1356
Abstract
The pathophysiology of lacunar infarction is an evolving and debated field, where relevant information comes from histopathology, old anatomical studies and animal models. Only in the last years, have neuroimaging techniques allowed a sufficient resolution to directly or indirectly assess the dynamic evolution [...] Read more.
The pathophysiology of lacunar infarction is an evolving and debated field, where relevant information comes from histopathology, old anatomical studies and animal models. Only in the last years, have neuroimaging techniques allowed a sufficient resolution to directly or indirectly assess the dynamic evolution of small vessel occlusion and to formulate hypotheses about the tissue status and the mechanisms of damage. The core–penumbra concept was extensively explored in large vessel occlusions (LVOs) both from the experimental and clinical point of view. Then, the perfusion thresholds on one side and the neuroimaging techniques studying the perfusion of brain tissue were focused and optimized for LVOs. The presence of a perfusion deficit in the territory of a single small perforating artery was negated for years until the recent proposal of the existence of a perfusion defect in a subgroup of lacunar infarcts by using magnetic resonance imaging (MRI). This last finding opens pathophysiological hypotheses and triggers a neurovascular multidisciplinary reasoning about how to image this perfusion deficit in the acute phase in particular. The aim of this review is to summarize the pathophysiological issues and the application of the core–penumbra hypothesis to lacunar stroke. Full article
(This article belongs to the Special Issue Imaging in Acute Stroke)

Other

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16 pages, 694 KiB  
Systematic Review
CT Perfusion in Lacunar Stroke: A Systematic Review
by Marialuisa Zedde, Manuela Napoli, Ilaria Grisendi, Federica Assenza, Claudio Moratti, Franco Valzania and Rosario Pascarella
Diagnostics 2023, 13(9), 1564; https://doi.org/10.3390/diagnostics13091564 - 27 Apr 2023
Cited by 5 | Viewed by 2031
Abstract
Background. The main theory underlying the use of perfusion imaging in acute ischemic stroke is the presence of a hypoperfused volume of the brain downstream of an occluded artery. Indeed, the main purpose of perfusion imaging is to select patients for endovascular treatment. [...] Read more.
Background. The main theory underlying the use of perfusion imaging in acute ischemic stroke is the presence of a hypoperfused volume of the brain downstream of an occluded artery. Indeed, the main purpose of perfusion imaging is to select patients for endovascular treatment. Computed Tomography Perfusion (CTP) is the more used technique because of its wide availability but lacunar infarcts are theoretically outside the purpose of CTP, and limited data are available about CTP performance in acute stroke patients with lacunar stroke. Methods. We performed a systematic review searching in PubMed and EMBASE for CTP and lacunar stroke with a final selection of 14 papers, which were examined for data extraction and, in particular, CTP technical issues and sensitivity, specificity, PPV, and NPV values. Results. A global cohort of 583 patients with lacunar stroke was identified, with a mean age ranging from 59.8 to 72 years and a female percentage ranging from 32 to 53.1%.CTP was performed with different technologies (16 to 320 rows), different post-processing software, and different maps. Sensitivity ranges from 0 to 62.5%, and specificity from 20 to 100%. Conclusions. CTP does not allow to reasonable exclude lacunar infarct if no perfusion deficit is found, but the pathophysiology of lacunar infarct is more complex than previously thought. Full article
(This article belongs to the Special Issue Imaging in Acute Stroke)
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