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The value of radiomics-based hyperdense middle cerebral artery sign in predicting hemorrhagic transformation in acute ischemic stroke patients undergoing endovascular treatment.
Front Neurol
December 2024
Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Objective: To establish and validate a model based on hyperdense middle cerebral artery sign (HMCAS) radiomics features for predicting hemorrhagic transformation (HT) in patients with acute ischemic stroke (AIS) after endovascular treatment (EVT).
Methods: Patients with AIS who presented with HMCAS on non-contrast computed tomography (NCCT) at admission and underwent EVT at three comprehensive hospitals between June 2020 and January 2024 were recruited for this retrospective study. A radiomics model was constructed using the HMCAS radiomics features most strongly associated with HT.
Mobile photon counting detector CT with multi material decomposition methods for neuroimaging of patients in intensive care unit.
Sci Rep
December 2024
Health & Medical Equipment Business, Samsung Electronics Co., Ltd, 8, Gumi-ro, Bundang-gu, Seongnam- si, 13638, Gyeonggi-do, Republic of Korea.
The photon-counting detector computed tomography (PCD-CT) is a promising new technology that provides more spectral information in medical imaging. PCD-CT enables bedside imaging in the neuro intensive care unit (neuro ICU) for patients with life-threatening conditions such as brain hemorrhage and ischemic stroke. The primary purpose of this study is to evaluate a multi-material decomposition algorithm available on PCD-CT, dubbed MD Plus, to differentiate between contrast agent and hemorrhage in hyperdense lesions.
View Article and Find Full Text PDFHyperdense Middle Cerebral Artery Sign as a Predictor of First-Pass Recanalization and Favorable Outcomes in Direct Thrombectomy Patients.
Clin Neuroradiol
December 2024
Interventional Neuroradiology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No.119 South 4th Ring West Road, 100070, Fengtai District, Beijing, China.
Background: The Hyperdense Middle Cerebral Artery Sign (HMCAS) is an early marker of acute MCA occlusion on non-contrast CT (NCCT), which has been linked with stroke type and thrombus composition.
Aims: To assess the prognostic value of HMCAS in M1 occlusion patients treated with endovascular thrombectomy and explore its predictive value across different patients.
Methods: Patients with M1 occlusion were selected from the ANGEL-ACT registry, which comprised 1793 individuals.
Neuro-oncology application of next-generation, optically tracked robotic stereotaxis with intraoperative computed tomography: a pilot experience.
Neurosurg Focus
December 2024
Departments of1Neurosurgery.
Objective: Innovations in robotics continue to reshape the landscape of neurosurgery. Here, the authors evaluated the safety and efficacy of the ExcelsiusGPS robot in the treatment of neuro-oncological, intracranial lesions.
Methods: The authors conducted a retrospective analysis of 19 consecutive adult patients with a neuro-oncological diagnosis who underwent intracranial biopsy and/or laser interstitial thermal therapy (LITT) with the assistance of the ExcelsiusGPS robot and intraoperative CT.
Is the Hyperdensity Areas of the CT Blend Sign Associated with the Fresh Bleeding in Intracerebral Hemorrhage?
Curr Med Imaging
November 2024
Department of Emergency, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, PR China.
Article Synopsis
- The study investigates the relationship between two features in Intracerebral Hemorrhage (ICH), the spot sign and the blend sign, aiming to clarify the mechanisms behind their formation.
- Researchers categorized patients based on the location of the spot sign within the blend sign and analyzed its association with hematoma expansion (HE) over a period from 2018 to 2023.
- Results showed that the majority of patients with a spot sign had it in the hyperdensity region, and this was a strong predictor of HE, suggesting that the hyperdensity area indicates active bleeding.
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