Publications by authors named "Tadayoshi Kato"
Evaluation of Intraplaque Neovascularization Using Superb Microvascular Imaging and Contrast-Enhanced Ultrasonography.
J Stroke Cerebrovasc Dis
September 2018
Article Synopsis
- The study explores the effectiveness of superb microvascular imaging (SMI) compared to contrast-enhanced ultrasonography (CEUS) in detecting intraplaque neovascularization (IPN) in carotid arteries.
- CEUS identified intraplaque enhancement in 19 patients, while SMI detected intraplaque blood flow in 12 patients, showing high specificity but lower sensitivity for SMI.
- The findings suggest that SMI is a promising noninvasive alternative for evaluating plaque instability and IPN, especially in regions where CEUS contrast agents are not covered by health insurance.
Background And Purpose: Magnetic resonance (MR) and contrast-enhanced ultrasound assess characteristics and neovascularization, respectively, of the carotid plaque. The purpose of the present study was to clarify how findings of contrast-enhanced ultrasound plaque imaging are related to those of 3-dimensional (3D) fast spin echo (FSE) T1-weighted MR plaque imaging (WI) in severe stenosis (≥70%) of the cervical carotid artery.
Methods: Fifty-three patients underwent 3D FSE T1-WI and contrast-enhanced ultrasound.
Background And Aims: Emboli from the surgical site during exposure of the carotid arteries cause new cerebral ischemic lesions or neurological deficits after carotid endarterectomy (CEA). The purpose of the present study was to determine whether preoperative contrast-enhanced ultrasound findings of the cervical carotid arteries are associated with the development of microembolic signals (MES) on transcranial Doppler, during exposure of the arteries in CEA, and to compare the predictive accuracy of contrast-enhanced ultrasound findings with that of gray-scale median (GSM).
Methods: Seventy patients with internal carotid artery stenosis (≥70%) underwent preoperative cervical carotid artery ultrasound and CEA under transcranial Doppler monitoring of MES in the ipsilateral middle cerebral artery.