Imaging for Treated Aneurysms (Including Clipping, Coiling, Stents, Flow Diverters)
Intracranial aneurysms are common in the adult population and carry a risk of rupture leading to catastrophic subarachnoid hemorrhage. Treatment of aneurysms has evolved significantly, with the introduction of new techniques and devices for minimally invasive and endovascular approaches. Follow-up imaging after aneurysm treatment is standard of care to monitor for recurrence or other complications, and the preferred imaging modality and schedule for follow-up are areas of active research. The modality and follow-up schedule should be tailored to treatment technique, aneurysm characteristics, and patient factors. (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Authors: Jason Hostetter, Timothy R. Miller, Dheeraj Gandhi Source Type: research
Vasospasm
Cerebral vasospasm (VS) and delayed cerebral ischemia (DCI) are important complications of aneurysmal subarachnoid hemorrhage (ASAH). Imaging approaches to VS monitoring include noninvasive bedside assessment with transcranial Doppler ultrasonography, angiographic evaluation with digital subtraction angiography, and computed tomography (CT) angiography. DCI is a clinical diagnosis and is not fully explained by the presence of angiographic VS. CT perfusion has shown clinical utility and implications for future research in the evaluation of DCI in patients with ASAH. This review article discusses the common approaches to dia...
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Authors: Jana Ivanidze, Pina C. Sanelli Source Type: research
Management of Unruptured Intracranial Aneurysms
Unruptured intracranial aneurysms (UIAs) are common and are being detected with increasing frequency given the improved quality and higher frequency of cross-sectional imaging. The long-term natural history of UIAs remains poorly understood. To date, there is relative lack of clear guidelines for selection of patients with UIAs for treatment. Surveillance imaging for untreated UIAs is frequently performed, but frequency, duration, and modality of surveillance imaging need clearer guidelines. The authors review the current evidence on prevalence, natural history, role of treatment, and surveillance and screening imaging and...
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Authors: Ajay Malhotra, Xiao Wu, Dheeraj Gandhi Source Type: research
Extracranial Vascular Disease
This article briefly describes some of the most commonly encountered plaque features, including plaque calcification, intraplaque hemorrhage, lipid-rich necrotic core, and plaque ulceration. (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Authors: Hediyeh Baradaran, Ajay Gupta Source Type: research
Imaging of Spontaneous Intracerebral Hemorrhage
This article discusses the neuroimaging methods of ICH, imaging markers for clinical outcome prediction, and future research directions with attention to the latest evidence-based guidelines. (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Authors: Abhi Jain, Ajay Malhotra, Seyedmehdi Payabvash Source Type: research
Evidence-Based Vascular Neuroimaging
The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd. —Bertrand RussellThe practice of medicine has traditionally relied heavily on physicians’ personal experiences and observations from retrospective or case control studies. During the past century, there has been a gradual shift and recognition that the science and practice of medicine should ins tead be grounded in scientifically sound evidence. The current shift to “value-based” health care model means the evidentiary basis of studies is increasingly scrutinized, and sophisticated hierarchies of evidence have been ...
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Authors: Ajay Malhotra, Dheeraj Gandhi Tags: Preface Source Type: research
CME Accreditation Page
(Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Source Type: research
Evidence-Based Vascular Neuroimaging
NEUROIMAGING CLINICS OF NORTH AMERICA (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Authors: Ajay Malhotra, Dheeraj Gandhi Source Type: research
Copyright
ELSEVIER (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Source Type: research
Neuroimaging Clinics of North America
Imaging of the Thyroid and Parathyroid (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Source Type: research
Contributors
SURESH K. MUKHERJI, MD, MBA, FACR (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Source Type: research
Contents
Suresh K. Mukherji (Source: Neuroimaging Clinics)
Source: Neuroimaging Clinics - April 25, 2021 Category: Radiology Source Type: research
Brain Arteriovenous Malformations
Brain arteriovenous malformations (AVMs) are characterized by shunting between pial arteries and cortical or deep veins, with the presence of an intervening nidus of tortuous blood vessels. These lesions present a therapeutic challenge, because their natural history entails a risk of intracranial hemorrhage, but treatment may cause significant morbidity. In this article, imaging features of AVMs on MR imaging and catheter angiography are reviewed to stratify the risk of hemorrhage and guide appropriate management. The angioarchitecture of AVMs may evolve over time, spontaneously or in response to treatment, necessitating o...
Source: Neuroimaging Clinics - March 24, 2021 Category: Radiology Authors: Will Guest, Timo Krings Source Type: research
Computed Tomography –Based Imaging Algorithms for Patient Selection in Acute Ischemic Stroke
Computed tomography remains the most widely used imaging modality for evaluating patients with acute ischemic stroke. Landmark trials have used computed tomography imaging to select patients for intravenous thrombolysis and endovascular treatment. This review summarizes the most important acute ischemic stroke trials, provides an outlook of ongoing studies, and proposes possible image algorithms for patient selection. Although evaluation with anatomic computed tomography imaging techniques is sufficient in early window patients, more advanced imaging techniques should be used beyond 6 hours from symptoms onset to quantif...
Source: Neuroimaging Clinics - March 23, 2021 Category: Radiology Authors: Benjamin Pulli, Jeremy J. Heit, Max Wintermark Source Type: research
Subarachnoid Hemorrhage of Unknown Cause
Subarachnoid hemorrhage of unknown cause represents approximately 10% to 15% of nontraumatic subarachnoid hemorrhages. The key factors in determining the management strategy for a presumed nonaneurysmal subarachnoid hemorrhage are the distribution, location, and amount of subarachnoid blood. Hemorrhage distribution on computed tomography can be categorized as follows: perimesencephalic, diffuse, sulcal, and primary intraventricular. The extent of the workup required in determining the cause of hemorrhage depends on the distribution of blood. The authors review the potential causes, differential diagnoses, and acute and lon...
Source: Neuroimaging Clinics - March 23, 2021 Category: Radiology Authors: Anthony S. Larson, Waleed Brinjikji Source Type: research
