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Journals Neuroimaging Clinics of North ...

Neuroimaging Clinics of North America

https://read.qxmd.com/read/38604714/advanced-imaging-of-hemorrhagic-and-ischemic-stroke-the-future-holds-many-possibilities
#1
EDITORIAL
Joseph J Gemmete, Zachary M Wilseck
No abstract text is available yet for this article.
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604713/foreword
#2
EDITORIAL
Suresh K Mukherji
No abstract text is available yet for this article.
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604712/vessel-wall-characterization-using-quantitative-mr-imaging
#3
REVIEW
Joseph J Gemmete
MR imaging's exceptional capabilities in vascular imaging stem from its ability to visualize and quantify vessel wall features, such as plaque burden, composition, and biomechanical properties. The application of advanced MR imaging techniques, including two-dimensional and three-dimensional black-blood MR imaging, T1 and T2 relaxometry, diffusion-weighted imaging, and dynamic contrast-enhanced MR imaging, wall shear stress, and arterial stiffness, empowers clinicians and researchers to explore the intricacies of vascular diseases...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604711/metabolic-imaging-of-acute-ischemic-stroke-pet-1-hydrogen-spectroscopy-17-oxygen-imaging-23-sodium-mri-ph-imaging
#4
REVIEW
Anil Vasireddi, Pamela W Schaefer, Saurabh Rohatgi
Acute stroke imaging plays a vital and time-sensitive role in therapeutic decision-making. Current clinical workflows widely use computed tomography (CT) and magnetic resonance (MR) techniques including CT and MR perfusion to estimate the volume of ischemic penumbra at risk for infarction without acute intervention. The use of imaging techniques aimed toward evaluating the metabolic derangements underlying a developing infarct may provide additional information for differentiating the penumbra from benign oligemia and infarct core...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604710/advances-in-intraoperative-imaging-for-vascular-neurosurgery
#5
REVIEW
Chanju Fritch, Ephraim Church, David Andrew Wilkinson
Cerebrovascular surgery has many intraoperative imaging modalities available. Modern technologies include intraoperative digital subtraction angiogram, indocyanine green (ICG) angiography, relative fluorescent measurement with ICG, and ultrasound. Each of these can be used effectively in the treatment of open aneurysm and arteriovenous malformation surgeries, in addition to arteriovenous fistula surgery, and cerebral bypass surgery.
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604709/mr-vessel-wall-imaging-for-atherosclerosis-and-vasculitis
#6
REVIEW
Mohamad M Alzein, Abhinav Patel, Ramez N Abdalla, Donald R Cantrell, Ali Shaibani, Sameer A Ansari
Conventional imaging modalities, such as computed tomography angiography, MR angiography, transcranial Doppler ultrasonography, and digital subtraction angiography, are utilized in evaluating intraluminal or intravascular pathology of the intracranial vessels. Limitations of luminal imaging techniques can lead to inaccurate diagnosis, evaluation, and risk stratification, as many cerebrovascular pathologies contain an extrinsic vessel wall component. Furthermore, vessel wall imaging can provide information regarding extent, treatment response, and biopsy targets for vasculitis cases...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604708/dual-energy-computed-tomography-in-the-evaluation-and-management-of-subarachnoid-hemorrhage-intracranial-hemorrhage-and-acute-ischemic-stroke
#7
REVIEW
Joseph J Gemmete
Dual-energy computed tomography (DECT) has emerged as a valuable imaging modality in the diagnosis and management of various cerebrovascular pathologies, including subarachnoid hemorrhage, intracranial hemorrhage, and acute ischemic stroke. This article reviews the principles of DECT and its applications in the evaluation and management of these conditions. The authors discuss the advantages of DECT over conventional computed tomography, as well as its limitations, and provide an overview of current research and future directions in the field...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604707/mr-imaging-of-the-cerebral-aneurysmal-wall-for-assessment-of-rupture-risk
#8
REVIEW
Sebastian Sanchez, Andres Gudino-Vega, Katherine Guijarro-Falcon, Jacob M Miller, Luis E Noboa, Edgar A Samaniego
The evaluation of unruptured intracranial aneurysms requires a comprehensive and multifaceted approach. The comprehensive analysis of aneurysm wall enhancement through high-resolution MRI, in tandem with advanced processing techniques like finite element analysis, quantitative susceptibility mapping, and computational fluid dynamics, has begun to unveil insights into the intricate biology of aneurysms. This enhanced understanding of the etiology, progression, and eventual rupture of aneurysms holds the potential to be used as a tool to triage patients to intervention versus observation...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604706/mr-imaging-based-biomarker-development-in-hemorrhagic-stroke-patients-including-brain-iron-quantification-diffusion-tensor-imaging-and-phenomenon-of-ultra-early-erythrolysis
#9
REVIEW
Momodou G Bah, Ehsan Dowlati, Max Fleigner, Sravanthi Koduri, Aditya Pandey, Leanne Y Lin, Thomas L Chenevert, Jonathan Troost, Guohua Xi, Richard Keep, Neeraj Chaudhary
This review article discusses the role of MR imaging-based biomarkers in understanding and managing hemorrhagic strokes, focusing on intracerebral hemorrhage (ICH) and aneurysmal subarachnoid hemorrhage. ICH is a severe type of stroke with high mortality and morbidity rates, primarily caused by the rupture of small blood vessels in the brain, resulting in hematoma formation. MR imaging-based biomarkers, including brain iron quantification, ultra-early erythrolysis detection, and diffusion tensor imaging, offer valuable insights for hemorrhagic stroke management...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604705/mr-imaging-techniques-for-acute-ischemic-stroke-and-delayed-cerebral-ischemia-following-subarachnoid-hemorrhage
#10
REVIEW
Marco Colasurdo, Huanwen Chen, Dheeraj Gandhi
Acute ischemic stroke (AIS) is a leading cause of death and disability worldwide, and its prevalence is expected to increase with global population aging and the burgeoning obesity epidemic. Clinical care for AIS has evolved during the past 3 decades, and it comprises of 3 major tenants: (1) timely recanalization of occluded vessels with intravenous thrombolysis or endovascular thrombectomy, (2) prompt initiation of antithrombotic agents to prevent stroke recurrences, and (3) poststroke supportive care and rehabilitation...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604704/transcranial-ultrasound-in-the-neurocritical-care-unit
#11
REVIEW
Venkatakrishna Rajajee
Ultrasound evaluation of the brain is performed through acoustic windows. Transcranial Doppler has long been used to monitor patients with subarachnoid hemorrhage for cerebral vasospasm. Transcranial color-coded sonography permits parenchymal B-mode imaging and duplex evaluation. Transcranial ultrasound may also be used to assess the risk of delayed cerebral ischemia, screen patients for the presence of elevated intracranial pressure, confirm the diagnosis of brain death, measure midline shift, and detect ventriculomegaly...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/38604703/ct-imaging-computed-tomography-computed-tomography-angiography-perfusion-in-acute-ischemic-stroke-and-vasospasm
#12
REVIEW
Sreehari Panicker, Zachary M Wilseck, Leanne Y Lin, Joseph J Gemmete
Computed tomography (CT), CT angiography (CTA), and CT perfusion (CTP) play crucial roles in the comprehensive evaluation and management of acute ischemic stroke, aneurysmal subarachnoid hemorrhage (SAH), and vasospasm. CTP provides functional data about cerebral blood flow, allowing radiologists, neurointerventionalists, and stroke neurologists to more accurately delineate the volume of core infarct and ischemic penumbra allowing for patient-specific treatment decisions to be made. CTA and CTP are used in tandem to evaluate for vasospasm associated with aneurysmal SAH and can help provide an insight into the physiologic impact of angiographic vasospasm, better triaging patients for medical and interventional treatment...
May 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951710/vasculitis-a-comprehensive-review
#13
EDITORIAL
Mahmud Mossa-Basha, Carlos A Zamora, Mauricio Castillo
No abstract text is available yet for this article.
February 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951709/foreword
#14
EDITORIAL
Suresh K Mukherji
No abstract text is available yet for this article.
February 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951708/neuroimaging-of-infectious-vasculopathy
#15
REVIEW
Renato Hoffmann Nunes, Diogo Goulart Corrêa, Felipe Torres Pacheco, Ana Paula Alves Fonseca, Luiz Celso Hygino da Cruz, Antônio José da Rocha
Vasculitis is a complication of several infectious diseases affecting the central nervous system, which may result in ischemic and/or hemorrhagic stroke, transient ischemic attack, and aneurysm formation. Infectious agents may directly infect the endothelium causing vasculitis or indirectly affect the vessel wall through an immunological cascade. Clinical manifestations usually overlap with those of noninfectious vascular diseases, making diagnosis challenging. Neuroimaging enables the identification of inflammatory changes in intracranial vasculitis...
February 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951707/imaging-of-vasculitis-associated-with-systemic-disease
#16
REVIEW
Igor Gomes Padilha, Ahmad Nehme, Hubert de Boysson, Laurent Létourneau-Guillon
Vasculitides are characterized by inflammation of the vessel wall, with their categorization relying on clinical and paraclinical manifestations, vessel type, size, distribution, histological attributes, and associated conditions. This review delves into the salient neuroimaging hallmarks of central nervous system vasculitis associated with the most prevalent systemic diseases and highlightings potential pitfalls and diagnostic confounders.
February 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951706/imaging-of-small-artery-vasculitis
#17
REVIEW
Omar Hamam, Samuel C Cartmell, Javier M Romero
Small artery vasculitis of the CNS is a rare and serious condition characterized by the inflammation of blood vessels within the brain and spinal cord. There are two groups of small artery vasculitis determined by the presence or absence of immunoglobulin complex deposition in the vessel wall. The former includes anti-glomerular basement membrane disease, cryoglobulinemic vasculitis, and IgA vasculitis. Absence of immune complex deposition is associated with anti-neutrophil cytoplasmic antibody (ANCA) and includes microscopic polyangiitis, granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis, and primary angiitis of the CNS...
February 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951705/primary-large-vessel-vasculitis-takayasu-arteritis-and-giant-cell-arteritis
#18
REVIEW
Griselda Romero-Sanchez, Mona Dabiri, Mahmud Mossa-Basha
Takayasu arteritis (TA) and Giant cell arteritis (GCA) are large vessel vasculitides, with TA targeting the aorta and its branches, and GCA targeting both large and medium-sized arteries. Early diagnosis of TA and GCA are of great importance, since delayed, inappropriate or no treatment can result in severe and permanent complications. Imaging plays a central role in establishing diagnosis, targeting lesions for confirmational diagnostic biopsy, specifically for GCA, and longitudinal disease evolution. In this article, we discuss imaging diagnosis of large artery vasculitis and the value of different imaging modalities...
February 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951704/usefulness-of-different-imaging-methods-in-the-diagnosis-of-cerebral-vasculopathy
#19
REVIEW
Carlos A Zamora, Mahmud Mossa-Basha, Mauricio Castillo
Assessment of cerebral vasculopathies is challenging and requires understanding the utility of different imaging methods. Various techniques are available to image the vessel lumen, each with unique advantages and disadvantages. Bolus-based CT and MR angiography requires careful timing of a contrast bolus to provide optimal luminal enhancement. Non-contrast MRA techniques do not require a contrast agent and can provide images with little venous contamination. Digital subtraction angiography remains the gold standard but is invasive, while VW-MRI provides a non-invasive way of assessing vessel wall pathology...
February 2024: Neuroimaging Clinics of North America
https://read.qxmd.com/read/37951703/pathology-of-primary-angiitis-of-the-central-nervous-system
#20
REVIEW
Selima Siala, Nabil Rahoui, Benjamin Cho, Carlos A Zamora
Primary angiitis of the central nervous system (PACNS) is a rare and potentially severe form of vasculitis that is limited to the brain, spinal cord, and meninges. Despite extensive research, the etiology and underlying immunologic mechanisms of PACNS remain largely unknown. PACNS presents with a variety of clinical, radiological, and pathologic features, but it is generally characterized by inflammation and destruction of the walls of blood vessels in the CNS, which can lead to tissue ischemia and/or hemorrhage...
February 2024: Neuroimaging Clinics of North America
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