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Celebrating 35 Years of the AJNR: May 1983 edition [other]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Tags: other Source Type: research

Transforaminal Lumbar Puncture: An Alternative Technique in Patients with Challenging Access [SPINE]
SUMMARY: Interlaminar lumbar puncture and cervical puncture may not be ideal in all circumstances. Recently, we have used a transforaminal approach in selected situations. Between May 2016 and December 2017, twenty-six transforaminal lumbar punctures were performed in 9 patients (25 CT-guided, 1 fluoroscopy-guided). Seven had spinal muscular atrophy and were referred for intrathecal nusinersen administration. In 2, CT myelography was performed via transforaminal lumbar puncture. The lumbar posterior elements were completely fused in 8, and there was an overlying abscess in 1. The L1–2 level was used in 2; the L2&ndas...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Nascene, D. R., Ozutemiz, C., Estby, H., McKinney, A. M., Rykken, J. B. Tags: SPINE Source Type: research

Percutaneous CT-Guided Biopsies of the Cervical Spine: Technique, Histopathologic and Microbiologic Yield, and Safety at a Single Academic Institution [SPINE]
CONCLUSIONS: Percutaneous CT-guided biopsy of the cervical spine is an effective and safe procedure with high diagnostic yield and can obviate open procedures for histopathologic and microbiologic analyses of patients with clinical and imaging findings concerning for infection or primary and metastatic osseous lesions. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Wiesner, E. L., Hillen, T. J., Long, J., Jennings, J. W. Tags: SPINE Source Type: research

The Importance of Flexion MRI in Hirayama Disease with Special Reference to Laminodural Space Measurements [SPINE]
CONCLUSIONS: Flexion cervical MR imaging is a very useful investigation in diagnosing Hirayama disease. The increase in the laminodural space and the presence of cervical cord flattening during flexion are essential for diagnosis. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Boruah, D. K., Prakash, A., Gogoi, B. B., Yadav, R. R., Dhingani, D. D., Sarma, B. Tags: SPINE Source Type: research

Differentiating Atypical Hemangiomas and Metastatic Vertebral Lesions: The Role of T1-Weighted Dynamic Contrast-Enhanced MRI [SPINE]
BACKGROUND AND PURPOSE: Vertebral hemangiomas are benign vascular lesions that are almost always incidentally found in the spine. Their classic typical hyperintense appearance on T1- and T2-weighted MR images is diagnostic. Unfortunately, not all hemangiomas have the typical appearance, and they can mimic metastases on routine MR imaging. These are generally referred to as atypical hemangiomas and can result in misdiagnosis and ultimately additional imaging, biopsy, and unnecessary costs. Our objective was to assess the utility of dynamic contrast-enhanced MR imaging perfusion in distinguishing vertebral atypical hemangiom...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Morales, K. A., Arevalo-Perez, J., Peck, K. K., Holodny, A. I., Lis, E., Karimi, S. Tags: SPINE Source Type: research

Prenatal Brain MR Imaging: Reference Linear Biometric Centiles between 20 and 24 Gestational Weeks [PEDIATRICS]
CONCLUSIONS: Reference biometric centiles of the brain structures in fetuses between 20 and 24 weeks of gestational age may be a reliable tool in assessing fetal brain development. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Conte, G., Milani, S., Palumbo, G., Talenti, G., Boito, S., Rustico, M., Triulzi, F., Righini, A., Izzo, G., Doneda, C., Zolin, A., Parazzini, C. Tags: PEDIATRICS Source Type: research

Cerebellar Growth Impairment Characterizes School-Aged Children Born Preterm without Perinatal Brain Lesions [PEDIATRICS]
In this study, we aim to quantify long term consequences of preterm birth on brain development in this specific group. MATERIALS AND METHODS: Neonatal cranial sonography and follow-up T1-weighted MR imaging and DTI were performed to evaluate whether the anatomic characteristics of the cerebrum and cerebellum in a cohort of school-aged children (6–12 years of age) were related to gestational age at birth in children free of brain lesions in the perinatal period. RESULTS: In the cohort consisting of 36 preterm (28–37 weeks' gestational age) and 66 term-born infants, T1-weighted MR imaging and DTI at 6–12 ...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Pieterman, K., White, T. J., van den Bosch, G. E., Niessen, W. J., Reiss, I. K. M., Tibboel, D., Hoebeek, F. E., Dudink, J. Tags: PEDIATRICS Source Type: research

MRI Characteristics of Primary Tumors and Metastatic Lesions in Molecular Subgroups of Pediatric Medulloblastoma: A Single-Center Study [PEDIATRICS]
BACKGROUND AND PURPOSE: Molecular grouping of medulloblastoma correlates with prognosis and supports the therapeutic strategy. We provide our experience with the imaging features of primary and metastatic disease in relation to the molecular groups. MATERIALS AND METHODS: One hundred nineteen consecutive patients (mean age, 7.3 ± 3.8 years at diagnosis; male, 79 [66.4%]) with a confirmed diagnosis of medulloblastoma and interpretable pretreatment MRIs were retrieved from our data base from January 2000 to December 2016. Each patient was assigned to wingless, sonic hedgehog, group 3, or group 4 molecular groups. The...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Mata-Mbemba, D., Zapotocky, M., Laughlin, S., Taylor, M. D., Ramaswamy, V., Raybaud, C. Tags: PEDIATRICS Source Type: research

Congenital Aqueductal Stenosis: Findings at Fetal MRI That Accurately Predict a Postnatal Diagnosis [PEDIATRICS]
CONCLUSIONS: Our study identified specific characteristics on fetal MR imaging that can be used as predictors of the diagnosis of congenital aqueductal stenosis. Most of these findings are secondary to the obstructive nature of the resulting hydrocephalus. Common associated malformations such as rhombencephalosynapsis and dystroglycanopathies should also increase the suspicion of congenital aqueductal stenosis when present with ventriculomegaly. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Heaphy-Henault, K. J., Guimaraes, C. V., Mehollin-Ray, A. R., Cassady, C. I., Zhang, W., Desai, N. K., Paldino, M. J. Tags: PEDIATRICS Source Type: research

Brain Diffusion Abnormalities in Children with Tension-Type and Migraine-Type Headaches [PEDIATRICS]
CONCLUSIONS: This study identifies early cerebral diffusion changes in patients with tension-type and migraine-type headaches compared with controls. The hypothesized mechanisms of nociception in migraine-type and tension-type headaches may explain the findings as a precursor to structural changes seen in adult patients with chronic headache. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Santoro, J. D., Forkert, N. D., Yang, Q.- Z., Pavitt, S., MacEachern, S. J., Moseley, M. E., Yeom, K. W. Tags: PEDIATRICS Source Type: research

Anatomic Malformations of the Middle and Inner Ear in 22q11.2 Deletion Syndrome: Case Series and Literature Review [HEAD & NECK]
CONCLUSIONS: Middle and inner ear abnormalities were frequently encountered in our cohort, including malformations of the lateral semicircular canal. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Verheij, E., Elden, L., Crowley, T. B., Pameijer, F. A., Zackai, E. H., McDonald-McGinn, D. M., Thomeer, H. G. X. M. Tags: HEAD & amp; NECK Source Type: research

Evaluation of the Normal Cochlear Second Interscalar Ridge Angle and Depth on 3D T2-Weighted Images: A Tool for the Diagnosis of Scala Communis and Incomplete Partition Type II [HEAD & NECK]
BACKGROUND AND PURPOSE: Cochlear malformations may be be subtle on imaging studies. The purpose of this study was to evaluate the angle and depth of the lateral second interscalar ridge or notch in ears without sensorineural hearing loss (normal ears) and compare them with ears that have a documented incomplete type II partition malformation. MATERIALS AND METHODS: The second interscalar ridge notch angle and depth were measured on MR imaging in normal ears by a single experienced neuroradiologist. The images of normal and incomplete partition II malformation ears were then randomly mixed for 2 novice evaluators to measur...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Booth, T. N., Wick, C., Clarke, R., Kutz, J. W., Medina, M., Gorsage, D., Xi, Y., Isaacson, B. Tags: HEAD & amp; NECK Source Type: research

3D Deep Learning Angiography (3D-DLA) from C-arm Conebeam CT [INTERVENTIONAL]
CONCLUSIONS: Deep learning angiography accurately recreated the vascular anatomy of the 3D rotational angiography reconstructions without a mask. Deep learning angiography reduced misregistration artifacts induced by intersweep motion, and it reduced radiation exposure required to obtain clinically useful 3D rotational angiography. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Montoya, J. C., Li, Y., Strother, C., Chen, G.- H. Tags: INTERVENTIONAL Source Type: research

Aneurysmal Parent Artery-Specific Inflow Conditions for Complete and Incomplete Circle of Willis Configurations [INTERVENTIONAL]
CONCLUSIONS: Inflow conditions vary substantially between aneurysmal parent arteries and circle of Willis configurations. We have created a collection of parent artery–specific inflow conditions tailored to the patient-specific circle of Willis configuration that can be used in future computational fluid dynamics studies analyzing intra-aneurysmal hemodynamics. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Cornelissen, B. M. W., Schneiders, J. J., Sprengers, M. E., van den Berg, R., van Ooij, P., Nederveen, A. J., van Bavel, E., Vandertop, W. P., Slump, C. H., Marquering, H. A., Majoie, C. B. L. M. Tags: INTERVENTIONAL Source Type: research

Under Pressure: Comparison of Aspiration Techniques for Endovascular Mechanical Thrombectomy [INTERVENTIONAL]
BACKGROUND AND PURPOSE: Blood flow should be interrupted during mechanical thrombectomy to prevent embolization of clot fragments. The purpose of our study was to provide a handy overview of the most common aspiration devices and to quantify their flow characteristics. MATERIALS AND METHODS: We assessed volumetric flow rates generated by a 60-mL VacLok vacuum pressure syringe, a Pump MAX aspiration pump, and a Dominant Flex suction pump connected to the following: 1) an 8F long sheath, 2) an 8F balloon-guide catheter, 3) an ACE 64 distal aspiration catheter, and 4) an AXS Catalyst 6 Distal Access Catheter. We used a water...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Nikoubashman, O., Wischer, D., Hennemann, H. M., Büsen, M., Brockmann, C., Wiesmann, M. Tags: INTERVENTIONAL Source Type: research

Randomized Assessment of the Safety and Efficacy of Intra-Arterial Infusion of Autologous Stem Cells in Subacute Ischemic Stroke [INTERVENTIONAL]
This study was performed to evaluate the safety and the efficacy of intra-arterial infusion of bone marrow–derived mononuclear cells in patients with middle cerebral artery ischemic stroke. MATERIALS AND METHODS: A prospective, randomized, open-label, blinded–end point study was performed from July 2015 to June 2016. Of 229 patients with acute stroke who presented to the hospital during this period, 20 patients who satisfied the inclusion/exclusion criteria were included and randomized into the control and intervention groups. Intra-arterial stem cell infusion into the ipsilateral MCA was performed in the pati...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Bhatia, V., Gupta, V., Khurana, D., Sharma, R. R., Khandelwal, N. Tags: INTERVENTIONAL Source Type: research

Accuracy of CT Angiography for Differentiating Pseudo-Occlusion from True Occlusion or High-Grade Stenosis of the Extracranial ICA in Acute Ischemic Stroke: A Retrospective MR CLEAN Substudy [INTERVENTIONAL]
This study aimed to explore the accuracy of CTA for differentiating pseudo-occlusion from true occlusion of the extracranial ICA. MATERIALS AND METHODS: All patients from the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN) with an apparent ICA occlusion on CTA and available DSA images were included. Two independent observers classified CTA images as atherosclerotic cause (occlusion/high-grade stenosis), dissection, or suspected pseudo-occlusion. Pseudo-occlusion was suspected if CTA showed a gradual contrast decline located above the level of the caro...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Kappelhof, M., Marquering, H. A., Berkhemer, O. A., Borst, J., van der Lugt, A., van Zwam, W. H., Vos, J. A., Lycklama a Nijeholt, G., Majoie, C. B. L. M., Emmer, B. J., on behalf of the MR CLEAN Investigators Tags: INTERVENTIONAL Source Type: research

Endovascular Management of Acute Stroke in the Elderly: A Systematic Review and Meta-Analysis [ADULT BRAIN]
Conclusions: Good functional recovery in octogenarians treated with endovascular therapy for acute stroke can be achieved in a high proportion of patients despite the higher incidence of comorbidity in this cohort. Outcomes are inferior to those reported for younger patients; however, endovascular therapy can allow at least 1 in 4 patients older than 80 years of age to regain independent function at 3 months. More research is required to improve patient selection in the elderly, but age should not be a discriminator when deciding to offer endovascular therapy for patients with acute stroke. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Hilditch, C. A., Nicholson, P., Murad, M. H., Rabinstein, A., Schaafsma, J., Pikula, A., Krings, T., Pereira, V. M., Agid, R., Brinjikji, W. Tags: ADULT BRAIN Source Type: research

Diagnosing Early Ischemic Changes with the Latest-Generation Flat Detector CT: A Comparative Study with Multidetector CT [ADULT BRAIN]
BACKGROUND AND PURPOSE: One-stop management of mechanical thrombectomy–eligible patients with large-vessel occlusion represents an innovative approach in acute stroke treatment. This approach reduces door-to-reperfusion times by omitting multidetector CT, using flat detector CT as pre-mechanical thrombectomy imaging. The purpose of this study was to compare the diagnostic performance of the latest-generation flat detector CT with multidetector CT. MATERIALS AND METHODS: Prospectively derived data from patients with ischemic stroke with large-vessel occlusion and mechanical thrombectomy were analyzed in this monocent...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Maier, I. L., Leyhe, J. R., Tsogkas, I., Behme, D., Schregel, K., Knauth, M., Schnieder, M., Liman, J., Psychogios, M.- N. Tags: ADULT BRAIN Source Type: research

Management of Small Unruptured Intracranial Aneurysms: A Survey of Neuroradiologists [INTERVENTIONAL]
CONCLUSIONS: The natural history of intracranial aneurysms is not well-understood. A large proportion of incidentally detected, unruptured aneurysms are small (
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Malhotra, A., Wu, X., Geng, B., Hersey, D., Gandhi, D., Sanelli, P. Tags: INTERVENTIONAL Source Type: research

Factors Influencing Confidence in Diagnostic Ratings and Retreatment Recommendations in Coiled Aneurysms [INTERVENTIONAL]
CONCLUSIONS: Although overall confidence in the diagnostic rating was high, our study confirms the suboptimal interrater reliability of visual assessment of aneurysm occlusion as well as retreatment recommendations, rendering both questionable as primary outcome measures. Besides recurrence status, recommendation of retreatment is significantly influenced by patient age, aneurysm neck width, and characteristics of the therapist. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Ernst, M., Kriston, L., Groth, M., Frölich, A. M., Fiehler, J., Buhk, J.- H. Tags: INTERVENTIONAL Source Type: research

Long-Term Outcomes of Patients with Stent Tips Embedded into Internal Carotid Artery Branches during Aneurysm Coiling [INTERVENTIONAL]
CONCLUSIONS: In our experience, placement of a stent tip into ICA branches during stent-assisted coiling was not associated with any major adverse events. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Ban, S. P., Kwon, O.- K., Lee, S. U., Bang, J. S., Oh, C. W., Jeong, H. J., Cho, M. J., Jeong, E.- A., Kim, T. Tags: INTERVENTIONAL Source Type: research

The New Low-Profile WEB 17 System for Treatment of Intracranial Aneurysms: First Clinical Experiences [INTERVENTIONAL]
CONCLUSIONS: The WEB 17 is safe and effective for both ruptured and unruptured aneurysms. The WEB 17 is a valuable addition to the existing WEB size range, especially for very small aneurysms. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: van Rooij, S. B. T., Peluso, J. P., Sluzewski, M., Kortman, H. G., van Rooij, W. J. Tags: INTERVENTIONAL Source Type: research

Endovascular Treatment of Very Large and Giant Intracranial Aneurysms: Comparison between Reconstructive and Deconstructive Techniques--A Meta-Analysis [INTERVENTIONAL]
BACKGROUND: The safety and efficacy of reconstructive and deconstructive endovascular treatments of very large/giant intracranial aneurysms are not completely clear. PURPOSE: Our aim was to compare treatment-related outcomes between these 2 techniques. DATA SOURCES: A systematic search of 3 data bases was performed for studies published from 1990 to 2017. STUDY SELECTION: We selected series of reconstructive and deconstructive treatments with>10 patients. DATA ANALYSIS: Random-effects meta-analysis was used to analyze occlusion rates, complications, and neurologic outcomes. DATA SYNTHESIS: Thirty-nine studies evalu...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Cagnazzo, F., Mantilla, D., Rouchaud, A., Brinjikji, W., Lefevre, P.- H., Dargazanli, C., Gascou, G., Riquelme, C., Perrini, P., di Carlo, D., Bonafe, A., Costalat, V. Tags: INTERVENTIONAL Source Type: research

An Update on the Adjunctive Neurovascular Support of Wide-Neck Aneurysm Embolization and Reconstruction Trial: 1-Year Safety and Angiographic Results [INTERVENTIONAL]
CONCLUSIONS: The updated 1-year results from the ANSWER trial demonstrate aneurysm stability and an acceptable safety profile for aneurysms treated at the basilar apex and carotid terminus. Prospective data from a larger set of aneurysms treated at other locations are required to assess how treatment with PulseRider compares with alternatives for treating wide-neck bifurcation aneurysms. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Spiotta, A. M., Chaudry, M. I., Turner, R. D., Turk, A. S., Derdeyn, C. P., Mocco, J., Tateshima, S. Tags: INTERVENTIONAL Source Type: research

European Multicenter Study for the Evaluation of a Dual-Layer Flow-Diverting Stent for Treatment of Wide-Neck Intracranial Aneurysms: The European Flow-Redirection Intraluminal Device Study [INTERVENTIONAL]
CONCLUSIONS: This retrospective study in real-world patients demonstrated the safety and efficacy of the FRED for the treatment of intracranial aneurysms. In most cases, treatment with a single FRED resulted in complete angiographic occlusion at 1 year. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Killer-Oberpfalzer, M., Kocer, N., Griessenauer, C. J., Janssen, H., Engelhorn, T., Holtmannspötter, M., Buhk, J. H., Finkenzeller, T., Fesl, G., Trenkler, J., Reith, W., Berlis, A., Hausegger, K., Augustin, M., Islak, C., Minnich, B., Möh Tags: INTERVENTIONAL Source Type: research

Signal Change of Acute Cortical and Juxtacortical Microinfarction on Follow-Up MRI [ADULT BRAIN]
CONCLUSIONS: SWI revealed conversion (paramagnetic susceptibility changes) of acute cortical microinfarcts, suggesting that a substantial number of cortical microinfarcts may contain hemorrhagic components. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Miyata, M., Kakeda, S., Yoneda, T., Ide, S., Watanabe, K., Moriya, J., Korogi, Y. Tags: ADULT BRAIN Source Type: research

Fast and Robust Unsupervised Identification of MS Lesion Change Using the Statistical Detection of Changes Algorithm [ADULT BRAIN]
SUMMARY: We developed a robust automated algorithm called statistical detection of changes for detecting morphologic changes of multiple sclerosis lesions between 2 T2-weighted FLAIR brain images. Results from 30 patients showed that statistical detection of changes achieved significantly higher sensitivity and specificity (0.964, 95% CI, 0.823–0.994; 0.691, 95% CI, 0.612–0.761) than with the lesion-prediction algorithm (0.614, 95% CI, 0.410–0.784; 0.281, 95% CI, 0.228–0.314), while resulting in a 49% reduction in human review time (P = .007). (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Nguyen, T. D., Zhang, S., Gupta, A., Zhao, Y., Gauthier, S. A., Wang, Y. Tags: ADULT BRAIN Source Type: research

Brain MRI Characteristics of Patients with Anti-N-Methyl-D-Aspartate Receptor Encephalitis and Their Associations with 2-Year Clinical Outcome [ADULT BRAIN]
CONCLUSIONS: Normal brain MRI findings were observed in half of the patients. Lesions in the hippocampus were the most common MR imaging abnormal finding. The presence of hippocampal lesions is the main MR imaging predictor for poor prognosis in patients with anti-N-methyl-D-aspartate receptor encephalitis. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Zhang, T., Duan, Y., Ye, J., Xu, W., Shu, N., Wang, C., Li, K., Liu, Y. Tags: ADULT BRAIN Source Type: research

Localized Marked Elongation of the Distal Internal Carotid Artery with or without PHACE Syndrome: Segmental Dolichoectasia of the Distal Internal Carotid Artery [ADULT BRAIN]
CONCLUSIONS: The striking elongation and tortuosity of the distal ICA generally appeared to be a type of congenital lesion occurring early in embryogenesis as either a sporadic phenomenon or an arterial change associated with PHACE syndrome. Imaging findings revealed various mural abnormalities with a benign clinical course. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Jia, Z. Y., Zhao, L. B., Lee, D. H. Tags: ADULT BRAIN Source Type: research

Parent Artery Reconstruction for Large or Giant Cerebral Aneurysms Using the Tubridge Flow Diverter: A Multicenter, Randomized, Controlled Clinical Trial (PARAT) [INTERVENTIONAL]
BACKGROUND AND PURPOSE: Although flow diverters have been reported with favorable clinical and angiographic outcomes in various literatures, randomized trials determining their true effectiveness and safety are still in lack. The Parent Artery Reconstruction for Large or Giant Cerebral Aneurysms Using the Tubridge Flow Diverter (PARAT) trial was designed to evaluate the safety and efficacy of the Tubridge flow diverter in the treatment of large or giant aneurysms in comparison with Enterprise stent-assisted coiling. MATERIALS AND METHODS: This prospective, multicenter, randomized trial was conducted at 12 hospitals throug...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Liu, J.- m., Zhou, Y., Li, Y., Li, T., Leng, B., Zhang, P., Liang, G., Huang, Q., Yang, P.- f., Shi, H., Zhang, J., Wan, J., He, W., Liang, C., Zhu, G., Xu, Y., Hong, B., Yang, X., Bai, W., Tian, Y., Zhang, H., Li, Z., Li, Q., Zhao, R., Fang, Y., Zhao, K. Tags: INTERVENTIONAL Source Type: research

Vertebroplasty and Kyphoplasty for Osteoporotic Vertebral Fractures: What Are the Latest Data? [SPINE]
SUMMARY: Osteoporotic vertebral compression fractures frequently result in significant morbidity and health care resource use. For patients with severe and disabling pain, vertebral augmentation (vertebroplasty and kyphoplasty) is often considered. Although vertebroplasty was introduced>30 years ago, there are conflicting opinions regarding the role of these procedures in the treatment of osteoporotic vertebral compression fractures. This review article updates clinicians on the published prospective randomized controlled data, including the most recent positive trials that followed initial negative trials in 2009. Anal...
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Chandra, R. V., Maingard, J., Asadi, H., Slater, L.- A., Mazwi, T.- L., Marcia, S., Barr, J., Hirsch, J. A. Tags: SPINE Source Type: research

[other]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Schonfeld, S. M. Tags: other Source Type: research

Triage in the Angiography Suite for Mechanical Thrombectomy in Acute Ischemic Stroke: Not Such a Good Idea [letter]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Clarencon, F., Rosso, C., Degos, V., Shotar, E., Rolla-Bigliani, C., Samson, Y., Alamowitch, S., Sourour, N.- A. Tags: letter Source Type: research

Reply: [reply]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Jadhav, A. P., Menon, B. K., Goyal, M. Tags: reply Source Type: research

Interaction Should Guide Management Decisions [letter]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Johansson, E., Salzer, J. Tags: letter Source Type: research

Reply: [reply]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Korutz, A. W., Hijaz, T. A., Collins, J. D., Nemeth, A. J. Tags: reply Source Type: research

Pacemakers in MRI for the Neuroradiologist: Revisited [letter]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - May 15, 2018 Category: Radiology Authors: Kanal, E. Tags: letter Source Type: research

Normal Values of Magnetic Relaxation Parameters of Spine Components with the Synthetic MRI Sequence [SPINE]
CONCLUSIONS: Measurements can be easily obtained on SyMRI and correlated with previously published values obtained using conventional relaxometry techniques. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Drake-Perez, M., Delattre, B. M. A., Boto, J., Fitsiori, A., Lovblad, K.- O., Boudabbous, S., Vargas, M. I. Tags: SPINE Source Type: research

MRI Features of Aquaporin-4 Antibody-Positive Longitudinally Extensive Transverse Myelitis: Insights into the Diagnosis of Neuromyelitis Optica Spectrum Disorders [SPINE]
CONCLUSIONS: Our scoring system, based on cervicomedullary junction involvement, higher cord expansion ratio, bright spotty lesions, and female sex, can facilitate the timely diagnosis of neuromyelitis optica spectrum disorders. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Chee, C. G., Park, K. S., Lee, J. W., Ahn, H. W., Lee, E., Kang, Y., Kang, H. S. Tags: SPINE Source Type: research

Modeling Early Postnatal Brain Growth and Development with CT: Changes in the Brain Radiodensity Histogram from Birth to 2 Years [PEDIATRICS]
CONCLUSIONS: Normative metrics of the brain radiodensity histogram derived from routine clinical head CT images can be used to develop a model of normal brain development. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Cauley, K. A., Hu, Y., Och, J., Yorks, P. J., Fielden, S. W. Tags: PEDIATRICS Source Type: research

Intraoperative Conebeam CT for Assessment of Intracochlear Positioning of Electrode Arrays in Adult Recipients of Cochlear Implants [HEAD & NECK]
This study aimed to investigate its utility in the assessment of the positioning of the electrode array after cochlear implantation. MATERIALS AND METHODS: This was a retrospective study of 51 patients (65 ears) with intraoperative imaging by conebeam CT (O-arm) after cochlear implantation between 2013 and 2017. Correct placement into the cochlea was immediately identified. Positioning assessments were later analyzed with OsiriX software. RESULTS: Intraoperative imaging was quickly performed in all cases. No misplacement into the vestibule or semicircular canals was found. A foldover of the implanted array was identified...
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Jia, H., Torres, R., Nguyen, Y., De Seta, D., Ferrary, E., Wu, H., Sterkers, O., Bernardeschi, D., Mosnier, I. Tags: HEAD & amp; NECK Source Type: research

Melanoma of the Sinonasal Tract: Value of a Septate Pattern on Precontrast T1-Weighted MR Imaging [HEAD & NECK]
CONCLUSIONS: A septate pattern on precontrast T1WI might be an adjunctive imaging finding for the diagnosis of sinonasal melanoma. This might be attributed histologically to an uneven distribution of melanin and hemorrhage within the tumors. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Kim, Y.- K., Choi, J. W., Kim, H.- J., Kim, H. Y., Park, G. M., Ko, Y.- H., Cha, J., Kim, S. T. Tags: HEAD & amp; NECK Source Type: research

Clinical Validation of a Predictive Model for the Presence of Cervical Lymph Node Metastasis in Papillary Thyroid Cancer [HEAD & NECK]
CONCLUSIONS: The sonographic predictive model outperformed the standard assessment to detect lymph node metastasis in patients with papillary thyroid cancer and may reduce unnecessary biopsies. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Patel, N. U., Lind, K. E., McKinney, K., Clark, T. J., Pokharel, S. S., Meier, J. M., Stamm, E. R., Garg, K., Haugen, B. Tags: HEAD & amp; NECK Source Type: research

MRI with DWI for the Detection of Posttreatment Head and Neck Squamous Cell Carcinoma: Why Morphologic MRI Criteria Matter [HEAD & NECK]
BACKGROUND AND PURPOSE: Although diffusion-weighted imaging combined with morphologic MRI (DWIMRI) is used to detect posttreatment recurrent and second primary head and neck squamous cell carcinoma, the diagnostic criteria used so far have not been clarified. We hypothesized that precise MRI criteria based on signal intensity patterns on T2 and contrast-enhanced T1 complement DWI and therefore improve the diagnostic performance of DWIMRI. MATERIALS AND METHODS: We analyzed 1.5T MRI examinations of 100 consecutive patients treated with radiation therapy with or without additional surgery for head and neck squamous cell car...
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Ailianou, A., Mundada, P., De Perrot, T., Pusztaszieri, M., Poletti, P.- A., Becker, M. Tags: HEAD & amp; NECK Source Type: research

Altered Regional Homogeneity in Chronic Insomnia Disorder with or without Cognitive Impairment [FUNCTIONAL]
CONCLUSIONS: Our results indicate that decreased regional homogeneity values in the medial prefrontal cortex and increased regional homogeneity values in the cuneus may be important neurobiologic indicators of chronic insomnia disorder and accompanying cognitive impairment. Overall, our study described the regional homogeneity of the whole brain in chronic insomnia disorder with mild cognitive impairment and could be the basis for future studies. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Pang, R., Guo, R., Wu, X., Hu, F., Liu, M., Zhang, L., Wang, Z., Li, K. Tags: FUNCTIONAL Source Type: research

A Patient Dose-Reduction Technique for Neuroendovascular Image-Guided Interventions: Image-Quality Comparison Study [PATIENT SAFETY]
BACKGROUND AND PURPOSE: The ROI–dose-reduced intervention technique represents an extension of ROI fluoroscopy combining x-ray entrance skin dose reduction with spatially different recursive temporal filtering to reduce excessive image noise in the dose-reduced periphery in real-time. The aim of our study was to compare the image quality of simulated neurointerventions with regular and reduced radiation doses using a standard flat panel detector system. MATERIALS AND METHODS: Ten 3D-printed intracranial aneurysm models were generated on the basis of a single patient vasculature derived from intracranial DSA and CTA....
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Sonig, A., Setlur Nagesh, S. V., Fennell, V. S., Gandhi, S., Rangel-Castilla, L., Ionita, C. N., Snyder, K. V., Hopkins, L. N., Bednarek, D. R., Rudin, S., Siddiqui, A. H., Levy, E. I. Tags: PATIENT SAFETY Source Type: research

Radiation Dosimetry of 3D Rotational Neuroangiography and 2D-DSA in Children [PATIENT SAFETY]
CONCLUSIONS: In pediatric neuroangiography, the effective dose for 3D rotational angiography can be significantly lower than for 2D-biplane DSA and can be an essential adjunct in the evaluation of neurovascular lesions. Additionally, available 3D rotational angiography protocols have significant room to be tailored for effectiveness and dose optimization, depending on the clinical question. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Shkumat, N. A., Shroff, M. M., Muthusami, P. Tags: PATIENT SAFETY Source Type: research

HARMless: Transient Cortical and Sulcal Hyperintensity on Gadolinium-Enhanced FLAIR after Elective Endovascular Coiling of Intracranial Aneurysms [INTERVENTIONAL]
CONCLUSIONS: Cortical and sulcal hyperintensity on gadolinium-enhanced FLAIR is a transient observation in the arterial territory exposed to iodinated contrast medium during endovascular treatment of intracranial aneurysms. Cortical and sulcal hyperintensity on gadolinium-enhanced FLAIR is significantly associated with procedural time, and the frequency of angiographic runs suggesting a potential technical influence on the breakdown of the BBB, but no reported adverse clinical outcome or association with both iodinated contrast medium volume and DWI lesions was found. Recognition of cortical and sulcal hyperintensity on ga...
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Suthiphosuwan, S., Hsu, C. C.- T., Bharatha, A. Tags: INTERVENTIONAL Source Type: research

Quantification of Intracranial Aneurysm Volume Pulsation with 7T MRI [INTERVENTIONAL]
CONCLUSIONS: Volume pulsation quantification with the current imaging protocol on 7T MR imaging is not accurate due to multiple imaging artifacts. Future studies should always include aneurysm-specific accuracy analysis. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 10, 2018 Category: Radiology Authors: Kleinloog, R., Zwanenburg, J. J. M., Schermers, B., Krikken, E., Ruigrok, Y. M., Luijten, P. R., Visser, F., Regli, L., Rinkel, G. J. E., Verweij, B. H. Tags: INTERVENTIONAL Source Type: research