AJNR Releases Major App Update

AJNR’s new app release brings the latest Apple technology to you, fully built and optimized for iOS 8 with backward compatibility to iOS 7. This major update complements the most current Apple devices (iPad Air 2, iPhone 6, 6+) and offers many improvements and new features including:

Social Media Integration. Users can now share articles on Facebook and Twitter.  These icons are available under the Share icon in the article view. This replaces the in-app browser view from the sharing screen.

Refresh Icon. A new refresh icon updates all data and is helpful to users who are on slow cellular … Continue reading >>

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Biomechanics of Spine Stabilization

Benzel EC. Biomechanics of Spine Stabilization. 3rd ed. Thieme; 2015; 568 pp; 1083 ill; $199.99

biomechanics-benzelWith the many advancements in spinal surgery, especially in the area of spinal stabilization, the book Biomechanics of Spine Stabilization by Edward C. Benzel (neurosurgeon and chairman at the Cleveland Clinic Neurological Institute) provides an excellent review of both the fundamentals of spine biomechanics as well as traditional and more contemporary stabilization techniques. This 3rd edition will benefit both spine surgeons and neuroradiologists who seek to expand their knowledge of this increasingly complex field. The author, along with contributions from his myriad fellows through … Continue reading >>

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Degree of Collaterals and Not Time Is the Determining Factor of Core Infarct Volume within 6 Hours of Stroke Onset

Fellows’ Journal Club Editor’s Comments

Ninety-one patients were scanned by MR at 0–3 hours from stroke onset, and 70 patients within 3–6 hours. Collateral status, but not time from stroke onset to imaging, was a predictor of the size of core infarct in patients with anterior circulation large-vessel occlusion.

CTA collateral status in the region of the occluded vessel. A, Absent collaterals. B, Minimal (50%) collaterals. D, Full presence of collaterals.

CTA collateral status in the region of the occluded vessel. A, Absent collaterals. B, Minimal (<50%) collaterals. C, Partial (>50%) collaterals. D, Full presence of collaterals.


Growth of the core infarct during the first hours of ischemia onset is not well-understood. We hypothesized … Continue reading >>

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Arterial Spin-Labeling Parameters Influence Signal Variability and Estimated Regional Relative Cerebral Blood Flow in Normal Aging and Mild Cognitive Impairment: FAIR versus PICORE Techniques

Editor’s Choice Editor’s Comments

In healthy controls and 43 patients with mild cognitive impairment, 2 pulsed ASL sequences were performed at 3T: proximal inversion with a control for off-resonance effects (PICORE) and the flow-sensitive alternating inversion recovery technique (FAIR). FAIR had higher estimated relative CBF and lower interindividual variability than PICORE.


The average rCBF for FAIR, PICORE, and the difference between both ASL sequences.


Arterial spin-labeling is a noninvasive method to map cerebral blood flow, which might be useful for early diagnosis of neurodegenerative diseases. We directly compared 2 arterial spin-labeling techniques in healthy elderly controls … Continue reading >>

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A Proposal to Move the Fellowship Match to the R4 Year

My recent neuroradiology fellowship interview trail was truly enjoyable — a chance to meet neuroradiologists I admire, reunite with old friends, and deepen my appreciation for the neuroradiology division at my current institution. Despite this pleasant experience, I feel the fourth (R4) year of residency would be better suited for fellowship interviews and the match.

Prior to restructuring the ABR board examination, it seemed logical to position fellowship interviews in the third year of residency. There was enough time to establish the next step in a resident’s life before becoming lost in the oral exam “board frenzy”.1-3 Now, our … Continue reading >>

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Journal Scan – This Month in Other Journals, July 2015

Please check out the accompanying podcast of this blog post (also known as “Annotated Bibliography”):

http://www.ajnr.org/site/Podcasts/July2015AnnotBiblio.mp3 1. CADISS Trial Investigators. Antiplatelet treatment compared with anticoagulation treatment for cervical artery dissection (CADISS): a randomised trial. Lancet Neurol. 2015;14(4):361–367. doi:10.1016/S1474-4422(15)70018-9.

Patients with extracranial carotid and vertebral dissection with onset of symptoms within 7 days were randomly assigned to receive antiplatelet drugs or anticoagulant drugs for 3 months. The primary endpoint was ipsilateral stroke or death in the intention-to-treat population. 126 participants were assigned to antiplatelet treatment versus 124 to anticoagulant treatment. They found no difference in efficacy of antiplatelet and … Continue reading >>

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AJNR Tweetchat Recap – Interpretation of the Literature

For June’s #AJNR Tweetchat, @RogueRad (Dr. Jha from The University of Pennsylvania), @FalgunChokshiMD (Dr. Chokshi from Emory University Hospital) and @JPRSNPR (Joana Ramalho from Centro Hospitalar de Lisboa Central) were invited to discuss critical interpretation of literature.

[View the story “Tweetchat 6/9/15 – Interpretation of the Literature” on Storify]

Continue reading >>
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Preserve the Humor in Neuroradiology: The Requisites?

Colleagues in Radiology:

Our publisher, Elsevier, is exerting pressure on us to eliminate all of the humor in Neuroradiology: The Requisites, 4th edition. We feel that is what makes the book unique.

Please vote in this one question survey whether to eliminate the humor or not.

Thank you. Spread the word. Send to friends.

Dull versus Charming?

Dave Yousem & Rohini Nadgir… Continue reading >>

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Get CME for Reading AJNR Articles

The American Journal of Neuroradiology is undertaking a pilot program to provide CME credits for our readers. We have found a CME solution that rewards you for something you already do – reading AJNR articles.

for[CME] is an online search tool where you can search for and read AJNR articles, and earn CME for doing so. Earning CME is simple – search for a topic or specific AJNR article, read the article or abstract, and answer four questions to earn CME credit.

for[CME]’s Internet Point-of-Care Learning Activity is an accredited format of continuing medical education that awards AMA PRA Category Continue reading >>

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Endonasal Endoscopic Surgery of Skull Tumors: An Interdisciplinary Approach

Draf W, sen ed. Carrau RL, Bockmuhl U, Kassam AB, Vajkoczy P, eds. Endonasal Endoscopic Surgery of Skull Tumors: An Interdisciplinary Approach. Thieme; 2015; 362 pp; 498 ill; $189.99

draf - endonasal-surgeryWith the development of new strategies for surgery of masses of the skull base, the neuroradiologist should be aware of the options, indications, and approaches that are becoming increasingly used by neurosurgeons and ENT surgeons. Enter this 325-page book Endonasal Endoscopic Surgery of Skull Tumors: An Interdisciplinary Approach, edited by Drs. Draf, Carrau, Bockmuhl, Kassam and Vajkoczy (3 of whom are otolaryngologists, and 2 of whom are neurosurgeons). The book … Continue reading >>

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