Category Archives: Editor’s Choices

Perfusion-Based Selection for Endovascular Reperfusion Therapy in Anterior Circulation Acute Ischemic Stroke

Editor’s Choice July 2014

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The authors attempted to determine if reperfusion therapy for anterior circulation acute stroke based on MR perfusion resulted in better outcomes at 3 months than that based on noncontrast CT. Perfusion imaging-selected patients had a better outcome than those selected with only noncontrast CT but MR perfusion- and CT perfusion-selected patients had similar outcomes. In this multicenter study, patients with acute stroke who underwent perfusion imaging were more than 2-fold more likely to have good outcomes following endovascular reperfusion therapy

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Abstract

BACKGROUND AND PURPOSE
Controversy exists about the role of perfusion imaging in

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Are We Effectively Informing Patients? A Quantitative Analysis of On-Line Patient Education Resources from the American Society of Neuroradiology

Editor’s Choice July 2014

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The readability of 20 patient education articles found on the ASNR Web site were evaluated using 10 quantitative readability scales and compared with those found on the Web site of the Society of Neurointerventional Surgery. The authors concluded that the patient education resources on both Web sites failed to meet the guidelines of the National Institutes of Health and American Medical Association. Members of the public may fail to fully understand these resources and would benefit from revisions that result in more comprehensible information cast in simpler language.

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Abstract

BACKGROUND AND PURPOSE
The

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High Variability in Radiologists’ Reporting Practices for Incidental Thyroid Nodules Detected on CT and MRI

Editor’s Choice June 2014

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The authors evaluated radiologists’ current reporting practices for incidental thyroid nodules detected on CT and MRI. The most common responses to the survey were to recommend sonography and to report the nodules only in the body of the report. No significant differences were found when years of practice, practice types, and subspecialty were examined. Reporting practices were especially variable for patients with smaller nodules (≤10 mm) and those with multiple nodules and a history of cancer.

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Abstract

BACKGROUND AND PURPOSE
There are no guidelines for reporting incidental thyroid nodules seen on CT and … Continue reading >>

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Phlebographic Study Does Not Show Differences Between Patients with MS and Control Subjects

Editor’s Choice June 2014

(2 of 3)

Patients with MS and healthy controls underwent catheter venography to study whether stenoses and/or insufficiency affecting the azygous and internal jugular veins were related to the disease. There were no differences in the presence of stenoses and/or chronic cerebrospinal venous insufficiency between the 2 groups and thus the authors state that their data exclude a direct correlation between these anomalies and MS.

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Abstract

BACKGROUND AND PURPOSE
Hypothetical correlation between chronic cerebrospinal venous insufficiency and MS has gained the attention of patients and the scientific community. Studies performed by echo-color Doppler ultrasonography have shown … Continue reading >>

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Association of White Matter Hyperintensities with Low Serum 25-Hydroxyvitamin D Levels

Editor’s Choice June 2014

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The relationship between white matter hyperintensities and serum vitamin D levels was assessed in adults. The authors found a significant relationship between vitamin D and white matter T2 hyperintensities in independent adult outpatients, especially those over 50 years of age, but no relationship between vitamin D levels and brain atrophy.

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Abstract

BACKGROUND AND PURPOSE
Vitamin D deficiency is associated with cognitive impairment in the elderly and with increased white matter T2 hyperintensities in elderly debilitated patients. We investigated the relationship between serum vitamin D and brain MR findings in adult outpatients.

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Bioactive versus Bare Platinum Coils in the Treatment of Intracranial Aneurysms: The MAPS (Matrix and Platinum Science) Trial

Editor’s Choice May 2014

(3 of 3)

This prospective, randomized, multicenter study compares the efficacy of the Matrix versus bare metal coils. A group of 626 patients were divided between the 2 coil types and aneurysm recurrence and hemorrhage were assessed 1 year after procedures. Recurrences were associated with initial incomplete obliterations and the bare metal coils were not inferior to Matrix coils. Thus, due to cost differences, utilization of Matrix coils may not be justified.

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Abstract

BACKGROUND AND PURPOSE
The ability of polymer-modified coils to promote stable aneurysm occlusion after endovascular treatment is not well-documented. Angiographic aneurysm recurrence is … Continue reading >>

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Imaging Findings in MR Imaging–Guided Focused Ultrasound Treatment for Patients with Essential Tremor

Editor’s Choice May 2014

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This study reports the imaging findings after focused ultrasound ablation of the intermedius nuclei in patients with essential tremor. Fifteen patients received follow-up MRI studies on 4 occasions after treatment. Maximal lesion size and perilesional edema predicted a good outcome and all lesions showed consistent and typical findings in the days, weeks, and months after treatment.

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Abstract

BACKGROUND AND PURPOSE
MR imaging–guided focused sonography surgery is a new stereotactic technique that uses high-intensity focused sonography to heat and ablate tissue. The goal of this study was to describe MR imaging findings pre- and … Continue reading >>

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Safety of Unilateral Endovascular Occlusion of the Cervical Segment of the Vertebral Artery without Antecedent Balloon Test Occlusion

Editor’s Choice May 2014

(1 of 3)

The safety of unilateral vertebral artery occlusion without prior balloon test occlusion was retrospectively assessed in 59 patients who underwent postprocedure CT or MR imaging. No patients had clinical or imaging evidence of postprocedural infarctions. Both dominant and non-dominant vertebral arteries were safely occluded.

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Abstract

BACKGROUND AND PURPOSE
Antecedent balloon test occlusion is often performed prior to vertebral artery sacrifice, but there is limited data to suggest this adds a significant clinical benefit, especially in the setting of trauma. Furthermore, balloon test occlusion can be time-consuming, add to the technical complexity of the … Continue reading >>

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Spontaneous Lateral Sphenoid Cephaloceles: Anatomic Factors Contributing to Pathogenesis and Proposed Classification

Editor’s Choice April 2014

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Imaging findings in 26 patients with spontaneous lateral sphenoid cephaloceles were studied. The authors were able to classify these lesions into those involving the lateral recess of the sphenoid sinus that typically manifested as CSF leaks and headaches, and a second type that involved the lateral sphenoidal wing without extension into the sinus and presented with a variety of findings including seizures, headaches, meningitis, or neuropathy, or were incidental. All patients showed sphenoid arachnoid pits and 61% had an empty or partially empty sella.

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Abstract

Spontaneous lateral sphenoid cephaloceles arise from bony defects … Continue reading >>

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The Impact of Arterial Collateralization on Outcome after Intra-Arterial Therapy for Acute Ischemic Stroke

Editor’s Choice April 2014

(2 of 3)

The presence of poor leptomeningeal collaterals as assessed by CTA was correlated with patient outcome after receiving intra-arterial treatment for stroke. Functional outcomes in 87 patients with MCA and/or ICA occlusions were retrospectively assessed at 3 months. The authors found that poor arterial collateralization was associated with poor outcome after adjustment for recanalization success. They recommend that future studies include collateral scores as one of the predictors of functional outcome.

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Abstract

BACKGROUND AND PURPOSE
Although intra-arterial therapy for acute ischemic stroke is associated with superior recanalization rates, improved clinical outcomes are inconsistently observed

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