MRI T2-Hyperintense Signal Structures in the Cervical Spinal Cord: Anterior Median Fissure versus Central Canal in Chiari and Control--An Exploratory Pilot Analysis [SPINE]
CONCLUSIONS: In addition to the anticipated increased incidence/frequency of sagittal line and hyperintense foci in patients with Chiari I malformation, an increased incidence and frequency of anterior median fissure and anterior median fissure extending to and appearing to be connected with hyperintense foci/patient were identified. We believe an anterior median fissure may contribute to a saggital line appearance in some patients with Chiari I malformation. While thin saggital line channels are usually ascribed to the central canal, we believe some may be due to the base of the anterior median fissure, created by pulsati...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Tomsick, T. A., Wang, L. L., Zuccarello, M., Ringer, A. J. Tags: SPINE Source Type: research

Cervical Cordotomy for Intractable Pain: Do Postoperative Imaging Features Correlate with Pain Outcomes and Mirror Pain? [SPINE]
CONCLUSIONS: Although a minimal ablation size is required during cordotomy, larger lesions do not indicate better outcomes. DWI metrics changes represent tissue damage after ablation and may correlate with pain outcomes. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Berger, A., Artzi, M., Aizenstein, O., Gonen, T., Tellem, R., Hochberg, U., Ben-Bashat, D., Strauss, I. Tags: SPINE Source Type: research

Validation of the National Institute of Neurological Disorders and Stroke Spinal Cord Injury MRI Common Data Elements Instrument [SPINE]
CONCLUSIONS: Agreement was more consistent for the ordinal measures of spinal cord injury than continuous measures. Good to excellent agreement on length and location of spinal cord hemorrhage and edema can be achieved with ordinal measures alone. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Fisher, J., Krisa, L., Middleton, D. M., Leiby, B. E., Harrop, J. S., Shah, L. M., Schwartz, E. D., Doshi, A., Faro, S. H., Mohamed, F. B., Flanders, A. E. Tags: SPINE Source Type: research

Beyond Isolated and Associated: A Novel Fetal MR Imaging-Based Scoring System Helps in the Prenatal Prognostication of Callosal Agenesis [PEDIATRICS]
BACKGROUND AND PURPOSE: Although "corpus callosum agenesis" is an umbrella term for multiple entities, prenatal counseling is based reductively on the presence (associated) or absence (isolated) of additional abnormalities. Our aim was to test the applicability of a fetal MR neuroimaging score in a cohort of fetuses with prenatally diagnosed isolated corpus callosum agenesis and associated corpus callosum agenesis and correlate it with neurodevelopmental outcomes. MATERIALS AND METHODS: We performed a single-center retrospective analysis of a cohort of cases of consecutive corpus callosum agenesis collected betw...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Glatter, S., Kasprian, G., Bettelheim, D., Ulm, B., Weber, M., Seidl, R., Prayer, D., Diogo, M. C. Tags: PEDIATRICS Source Type: research

Evaluation of DISORDER: Retrospective Image Motion Correction for Volumetric Brain MRI in a Pediatric Setting [PEDIATRICS]
BACKGROUND AND PURPOSE: Head motion causes image degradation in brain MR imaging examinations, negatively impacting image quality, especially in pediatric populations. Here, we used a retrospective motion correction technique in children and assessed image quality improvement for 3D MR imaging acquisitions. MATERIALS AND METHODS: We prospectively acquired brain MR imaging at 3T using 3D sequences, T1-weighted MPRAGE, T2-weighted TSE, and FLAIR in 32 unsedated children, including 7 with epilepsy (age range, 2–18 years). We implemented a novel motion correction technique through a modification of k-space data acquisit...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Vecchiato, K., Egloff, A., Carney, O., Siddiqui, A., Hughes, E., Dillon, L., Colford, K., Green, E., Texeira, R. P. A. G., Price, A. N., Ferrazzi, G., Hajnal, J. V., Carmichael, D. W., Cordero-Grande, L., OMuircheartaigh, J. Tags: PEDIATRICS Source Type: research

Longitudinal Assessment of Enhancing Foci of Abnormal Signal Intensity in Neurofibromatosis Type 1 [PEDIATRICS]
CONCLUSIONS: Albeit very rare, contrast-enhancing lesions in patients with neurofibromatosis 1 may regress over time. Follow-up MR imaging aids in ascertaining regression. The development of atypical features should prompt further evaluation for underlying tumors. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Hainc, N., Wagner, M. W., Laughlin, S., Rutka, J., Hawkins, C., Blaser, S., Ertl-Wagner, B. B. Tags: PEDIATRICS Source Type: research

Radiomics of Pediatric Low-Grade Gliomas: Toward a Pretherapeutic Differentiation of BRAF-Mutated and BRAF-Fused Tumors [PEDIATRICS]
BACKGROUND AND PURPOSE: B-Raf proto-oncogene, serine/threonine kinase (BRAF) status has important implications for prognosis and therapy of pediatric low-grade gliomas. Currently, BRAF status classification relies on biopsy. Our aim was to train and validate a radiomics approach to predict BRAF fusion and BRAF V600E mutation. MATERIALS AND METHODS: In this bi-institutional retrospective study, FLAIR MR imaging datasets of 115 pediatric patients with low-grade gliomas from 2 children’s hospitals acquired between January 2009 and January 2016 were included and analyzed. Radiomics features were extracted from tumor seg...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Wagner, M. W., Hainc, N., Khalvati, F., Namdar, K., Figueiredo, L., Sheng, M., Laughlin, S., Shroff, M. M., Bouffet, E., Tabori, U., Hawkins, C., Yeom, K. W., Ertl-Wagner, B. B. Tags: PEDIATRICS Source Type: research

Postoperative Imaging Appearance of Iliac Crest Free Flaps Used for Palatomaxillary Reconstructions [HEAD & NECK]
This study presents a retrospective review of 5 patients who underwent palatomaxillary reconstruction with an iliac crest free flap at our institution. The imaging appearances of the 5 patients were analyzed to determine the key radiographic characteristics of a healthy and successful iliac crest free flap. Radiographic fluency with the imaging appearance of the iliac crest free flap, as well as the new anatomy of the region in the postoperative period, will allow for better interpretation of the flap appearance on imaging and will prevent false identification of tumor recurrence. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Sandler, M. L., Griffin, M., Xing, M. H., Ansari, E., Khorsandi, A. S., Urken, M. L. Tags: HEAD & amp; NECK Source Type: research

Variations in the Course of the Carotid Arteries in Patients with Retropharyngeal Parathyroid Adenomas [EXTRACRANIAL VASCULAR]
We describe these variations using a previously developed clinical grading system that highlights 1) the relationship between carotid artery location and risk of injury during pharyngeal procedures and 2) the importance of universal, objective criteria to classify carotid anatomy. Radiologists should be familiar with variations in carotid anatomy and communicate them to the operative team. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Steinl, G. K., Yeh, R., McManus, C. M., Lee, J. A., Kuo, J. H. Tags: EXTRACRANIAL VASCULAR Source Type: research

Value of Emergent Neurovascular Imaging for "Seat Belt Injury": A Multi-institutional Study [EXTRACRANIAL VASCULAR]
CONCLUSIONS: The risk of vascular injury in the presence of the cervical seat belt sign is small, and most patients diagnosed with blunt cerebrovascular injury have other associated findings. Therefore, CTA based solely on this sign has limited value (3/567 = a 0.5% positivity rate). We suggest that in the absence of other clinical findings, the seat belt sign does not independently justify neck CTA in patients after trauma. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Sherbaf, F. G., Chen, B., Pomeranz, T., Shahriari, M., Adin, M. E., Mirbagheri, S., Beheshtian, E., Jalilianhasanpour, R., Pakpoor, J., Lazor, J. W., Kamali, A., Yousem, D. M. Tags: EXTRACRANIAL VASCULAR Source Type: research

Low-Dose Eptifibatide for Tandem Occlusion in Stroke: Safety and Carotid Artery Patency [EXTRACRANIAL VASCULAR]
CONCLUSIONS: Low-dose eptifibatide seemed to be safe in tandem occlusions (symptomatic intracranial hemorrhage, 2%), although asymptomatic cervical carotid artery re-occlusions still occurred in 14% of patients. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Jost, A., Roels, C., Brown, M., Janjua, R., Heck, D. Tags: EXTRACRANIAL VASCULAR Source Type: research

Clot Meniscus Sign: An Angiographic Clue for Choosing between Stent Retriever and Contact Aspiration in Acute Basilar Artery Occlusion [INTERVENTIONAL]
CONCLUSIONS: The efficacy of the mechanical thrombectomy techniques may differ according to the angiographic characteristics of occlusion in patients with basilar artery occlusion. Contact aspiration may be more effective in terms of recanalization compared with a stent retriever in patients with the clot meniscus sign. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Baik, S. H., Jung, C., Kim, B. M., Han, K., Kim, D. J. Tags: INTERVENTIONAL Source Type: research

Fast Stent Retrieval during Mechanical Thrombectomy Improves Recanalization in Patients with the Negative Susceptibility Vessel Sign [INTERVENTIONAL]
CONCLUSIONS: A fast stent retrieval during mechanical thrombectomy is safe and improves the retrieval of clots with the negative susceptibility vessel sign. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Soize, S., Eymard, J.- B., Cheikh-Rouhou, S., Manceau, P.- F., Gelmini, C., Sahnoun, M., Gawlitza, M., Zuber, M., Pierot, L., Touze, E. Tags: INTERVENTIONAL Source Type: research

Ruptured Intracranial Aneurysms Treated with the Pipeline Embolization Device: A Systematic Review and Pooled Analysis of Individual Patient Data [INTERVENTIONAL]
CONCLUSIONS: Most ruptured aneurysms treated with the PED were blister or dissecting aneurysms. Treatment was associated with a rerupture rate of 2.1% and a complete occlusion rate of 87.5%. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Foreman, P. M., Ilyas, A., Cress, M. C., Vachhani, J. A., Hirschl, R. A., Agee, B., Griessenauer, C. J. Tags: INTERVENTIONAL Source Type: research

The Prophylactic Use of Tirofiban versus Oral Antiplatelet Medications in Stent-Assisted Coiling of Intracranial Aneurysms: A Meta-analysis [INTERVENTIONAL]
CONCLUSIONS: Prophylactic therapy with tirofiban resulted in significantly lower rates of thromboembolic complications with no increase in hemorrhagic events or mortality than the prophylactic use of dual-antiplatelet therapy. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Xiang, Y., Zhao, H., Ding, C., Chen, H., Wang, D., Liu, A. Tags: INTERVENTIONAL Source Type: research

Intra-Arterial Thrombolysis after Unsuccessful Mechanical Thrombectomy in the STRATIS Registry [INTERVENTIONAL]
CONCLUSIONS: Use of intra-arterial rtPA as a rescue therapy after unsuccessful mechanical thrombectomy was not associated with an increased risk of symptomatic intracranial hemorrhage or mortality. Randomized clinical trials are needed to understand the safety and efficacy of intra-arterial thrombolysis as a rescue therapy after mechanical thrombectomy. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Zaidi, S. F., Castonguay, A. C., Zaidat, O. O., Mueller-Kronast, N., Liebeskind, D. S., Salahuddin, H., Jumaa, M. A. Tags: INTERVENTIONAL Source Type: research

CTA Evaluation of Basilar Septations: An Entity Better Characterized as Aberrant Basilar Fenestrations [ADULT BRAIN]
CONCLUSIONS: Basilar septations most likely represent and should be referred to as aberrant basilar fenestrations. They should be interpreted as benign congenital incidental findings and should not be misinterpreted as focal dissections or arterial webs. Important variations in the morphology of aberrant basilar fenestrations exist, including areas of thinning, varying thickness, and nodularity. Therefore, when associated with calcification or nodularity, aberrant basilar fenestrations should not be confused with focal intraluminal thrombi or calcified or noncalcified emboli. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Small, J. E., Macey, M. B., Wakhloo, A. K., Sehgal, S. Tags: ADULT BRAIN Source Type: research

Ivy Sign in Moyamoya Disease: A Comparative Study of the FLAIR Vascular Hyperintensity Sign Against Contrast-Enhanced MRI [ADULT BRAIN]
CONCLUSIONS: In this study, CEMR outperformed FLAIR in capturing the ivy sign in Moyamoya disease. In addition, the CEMR-based ivy sign score provided adequate information on hemodynamic status and postoperative neovascularization. The current study suggested that CEMR could be considered as an alternative to FLAIR in future studies investigating leptomeningeal collaterals in Moyamoya disease. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Wang, L.- X., Wang, H., Hao, F.- B., Lv, J.- H., Zhang, S.- H., Han, D.- S., Bian, X.- B., Zhang, D.- K., Lan, Y.- N., Wang, X.- R., Wei, M.- T., Duan, L., Ma, L., Lou, X. Tags: ADULT BRAIN Source Type: research

Microstructural Tissue Changes in Alzheimer Disease Brains: Insights from Magnetization Transfer Imaging [ADULT BRAIN]
CONCLUSIONS: Alzheimer disease is associated with magnetization transfer ratio reductions in GM and WM regions of the brain. Lower magnetization transfer ratios in the entire cortex and AD-signature regions contribute to cognitive impairment independent of brain atrophy and WM damage. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Colonna, I., Koini, M., Pirpamer, L., Damulina, A., Hofer, E., Schwingenschuh, P., Enzinger, C., Schmidt, R., Ropele, S. Tags: ADULT BRAIN Source Type: research

Determining the Degree of Dopaminergic Denervation Based on the Loss of Nigral Hyperintensity on SMWI in Parkinsonism [ADULT BRAIN]
BACKGROUND AND PURPOSE: Nigrostriatal dopaminergic function in patients with Parkinson disease can be assessed using 123I-2β-carbomethoxy-3β-(4-iodophenyl)-N-(3-fluoropropyl)-nortropan dopamine transporter (123I-FP-CIT) SPECT, and a good correlation has been demonstrated between nigral status on SWI and dopaminergic denervation on 123I-FP-CIT SPECT. Here, we aim to correlate quantified dopamine transporter attenuation on 123I-FP-CIT SPECT with nigrosome-1 status using susceptibility map-weighted imaging (SMWI). MATERIALS AND METHODS: Between May 2017 and January 2018, consecutive patients with idiopathic Parkins...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Bae, Y. J., Song, Y. S., Kim, J.- M., Choi, B. S., Nam, Y., Choi, J.- H., Lee, W. W., Kim, J. H. Tags: ADULT BRAIN Source Type: research

Is Catheter Angiography Still Necessary to Evaluate Obliteration of Brain Arteriovenous Malformations Treated with Stereotactic Radiosurgery? [ADULT BRAIN]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Chen, C.-J., Ding, D. Tags: ADULT BRAIN Source Type: research

Are Dynamic Arterial Spin-Labeling MRA and Time-Resolved Contrast-Enhanced MRA Suited for Confirmation of Obliteration following Gamma Knife Radiosurgery of Brain Arteriovenous Malformations? [FUNCTIONAL]
BACKGROUND AND PURPOSE: Intra-arterial DSA has been traditionally used for confirmation of cure following gamma knife radiosurgery for AVMs. Our aim was to evaluate whether 4D arterial spin-labeling MRA and contrast-enhanced time-resolved MRA in combination can be an alternative to DSA for confirmation of AVM obliteration following gamma knife radiosurgery. MATERIALS AND METHODS: In this prospective study, 30 patients undergoing DSA for confirmation of obliteration following gamma knife radiosurgery for AVMs (criterion standard) also underwent MRA, including arterial spin-labeling MRA and contrast-enhanced time-resolved M...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Rojas-Villabona, A., Pizzini, F. B., Solbach, T., Sokolska, M., Ricciardi, G., Lemonis, C., DeVita, E., Suzuki, Y., van Osch, M. J. P., Foroni, R. I., Longhi, M., Montemezzi, S., Atkinson, D., Kitchen, N., Nicolato, A., Golay, X., Jäger, H. R. Tags: FUNCTIONAL Source Type: research

Vessel Type Determined by Vessel Architectural Imaging Improves Differentiation between Early Tumor Progression and Pseudoprogression in Glioblastoma [FUNCTIONAL]
CONCLUSIONS: Vessel architectural imaging significantly improved the diagnostic performance of relative CBV by demonstrating venous dominance and a tendency toward larger vessel size in early tumor progression. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Kim, M., Park, J. E., Emblem, K., Bjornerud, A., Kim, H. S. Tags: FUNCTIONAL Source Type: research

Automated Detection and Segmentation of Brain Metastases in Malignant Melanoma: Evaluation of a Dedicated Deep Learning Model [FUNCTIONAL]
CONCLUSIONS: Deep learning–based automated detection and segmentation of brain metastases in malignant melanoma yields high detection and segmentation accuracy with false-positive findings of
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Pennig, L., Shahzad, R., Caldeira, L., Lennartz, S., Thiele, F., Goertz, L., Zopfs, D., Meissner, A.- K., Fürtjes, G., Perkuhn, M., Kabbasch, C., Grau, S., Borggrefe, J., Laukamp, K. R. Tags: FUNCTIONAL Source Type: research

Machine Learning-Based Prediction of Small Intracranial Aneurysm Rupture Status Using CTA-Derived Hemodynamics: A Multicenter Study [FUNCTIONAL]
BACKGROUND AND PURPOSE: Small intracranial aneurysms are being increasingly detected while the rupture risk is not well-understood. We aimed to develop rupture-risk models of small aneurysms by combining clinical, morphologic, and hemodynamic information based on machine learning techniques and to test the models in external validation datasets. MATERIALS AND METHODS: From January 2010 to December 2016, five hundred four consecutive patients with only small aneurysms (
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Shi, Z., Chen, G. Z., Mao, L., Li, X. L., Zhou, C. S., Xia, S., Zhang, Y. X., Zhang, B., Hu, B., Lu, G. M., Zhang, L. J. Tags: FUNCTIONAL Source Type: research

A Stacked Generalization of 3D Orthogonal Deep Learning Convolutional Neural Networks for Improved Detection of White Matter Hyperintensities in 3D FLAIR Images [FUNCTIONAL]
CONCLUSIONS: A stacked generalization of convolutional neural networks, utilizing multiplanar lesion information using 2.5D spatial context, greatly improved the segmentation performance of StackGen-Net compared with traditional ensemble techniques and some state-of-the-art deep learning models for 3D-FLAIR. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Umapathy, L., Perez-Carrillo, G. G., Keerthivasan, M. B., Rosado-Toro, J. A., Altbach, M. I., Winegar, B., Weinkauf, C., Bilgin, A., for the Alzheimers Disease Neuroimaging Initiative Tags: FUNCTIONAL Source Type: research

Clinical, Imaging, and Lab Correlates of Severe COVID-19 Leukoencephalopathy [ADULT BRAIN]
BACKGROUND AND PURPOSE: Patients infected with the Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) can develop a spectrum of neurological disorders, including a leukoencephalopathy of variable severity. Our aim was to characterize imaging, lab, and clinical correlates of severe coronavirus disease 2019 (COVID-19) leukoencephalopathy, which may provide insight into the SARS-CoV-2 pathophysiology. MATERIALS AND METHODS: Twenty-seven consecutive patients positive for SARS-CoV-2 who had brain MR imaging following intensive care unit admission were included. Seven (7/27, 26%) developed an unusual pattern of "...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Rapalino, O., Pourvaziri, A., Maher, M., Jaramillo-Cardoso, A., Edlow, B. L., Conklin, J., Huang, S., Westover, B., Romero, J. M., Halpern, E., Gupta, R., Pomerantz, S., Schaefer, P., Gonzalez, R. G., Mukerji, S. S., Lev, M. H. Tags: ADULT BRAIN Source Type: research

Time to Reconsider Routine Percutaneous Biopsy in Spondylodiscitis? [SPINE]
SUMMARY: Percutaneous image-guided biopsy currently has a central role in the diagnostic work-up of patients with suspected spondylodiscitis. However, on the basis of recent evidence, the value of routine image-guided biopsy in this disease can be challenged. In this article, we discuss this recent evidence and also share a new diagnostic algorithm for spondylodiscitis that was recently introduced at our institution. Thus, we may move from a rather dogmatic approach in which routine image-guided biopsy is performed in any case to a more individualized use of this procedure. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Kasalak, O., Wouthuyzen-Bakker, M., Dierckx, R. A. J. O., Jutte, P. C., Kwee, T. C. Tags: SPINE Source Type: research

Retinoblastoma: What the Neuroradiologist Needs to Know [HEAD & NECK]
SUMMARY: Retinoblastoma is the most common primary intraocular tumor of childhood. Accurate diagnosis at an early stage is important to maximize patient survival, globe salvage, and visual acuity. Management of retinoblastoma is individualized based on the presenting clinical and imaging features of the tumor, and a multidisciplinary team is required to optimize patient outcomes. The neuroradiologist is a key member of the retinoblastoma care team and should be familiar with characteristic diagnostic and prognostic imaging features of this disease. Furthermore, with the adoption of intra-arterial chemotherapy as a standard...
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Silvera, V. M., Guerin, J. B., Brinjikji, W., Dalvin, L. A. Tags: HEAD & amp; NECK Source Type: research

Perspectives [other]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Hauben, M. Tags: other Source Type: research

Reply: [LETTERS]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Shapiro, M., Srivatanakul, K., Raz, E., Litao, M., Nossek, E., Nelson, P. K. Tags: LETTERS Source Type: research

The So-Called Cranial Dural Channels and Their Relationship with the Bridging Veins [LETTERS]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Baltsavias, G., Paterno, V., Lanfermann, H. Tags: LETTERS Source Type: research

Reply: [LETTERS]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Larson, A. S., Brinjikji, W. Tags: LETTERS Source Type: research

Inconsistencies between Radiologic and Cadaveric Studies of the Occipital Sinus [LETTERS]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Balak, N. Tags: LETTERS Source Type: research

Primary Angiitis of the CNS with Unremarkable Vessel Wall MR Imaging: How the "T1 Shinethrough" Effect on SWI Adds to the Detection of Gadolinium Enhancement of Small Intraparenchymal Brain Vessels [LETTERS]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Fonseca, A. P. A., do Carmo, R. L., Pacheco, F. T., Nunes, R. H., da Rocha, A. J. Tags: LETTERS Source Type: research

COVID-19-Associated Acute Disseminated Encephalomyelitis-Like Disease [LETTERS]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Assuncao, F. B., Fragoso, D. C., Donoso Scoppetta, T. L. P., Martins Maia, A. C. Tags: LETTERS Source Type: research

Evolution of Radial Access in Neurointerventional Surgery [LETTERS]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: Dornbos, D. Tags: LETTERS Source Type: research

Douglas Gordon Potts, MD [MEMORIAL]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - April 12, 2021 Category: Radiology Authors: ter Brugge, K. Tags: MEMORIAL Source Type: research

Celebrating 35 Years of the AJNR: March 1986 edition [other]
(Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Tags: other Source Type: research

Spinal Cord Gray and White Matter Damage in Different Hereditary Spastic Paraplegia Subtypes [SPINE]
BACKGROUND AND PURPOSE: Spinal cord damage is a hallmark of hereditary spastic paraplegias, but it is still not clear whether specific subtypes of the disease have distinctive patterns of spinal cord gray (GM) and white (WM) matter involvement. We compared cervical cross-sectional GM and WM areas in patients with distinct hereditary spastic paraplegia subtypes. We also assessed whether these metrics correlated with clinical parameters. MATERIALS AND METHODS: We analyzed 37 patients (17 men; mean age, 47.3 [SD, 16.5] years) and 21 healthy controls (7 men; mean age, 42.3 [SD, 13.2] years). There were 7 patients with spastic...
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Servelhere, K. R., Casseb, R. F., de Lima, F. D., Rezende, T. J. R., Ramalho, L. P., Franca, M. C. Tags: SPINE Source Type: research

The Restless Spinal Cord in Degenerative Cervical Myelopathy [SPINE]
BACKGROUND AND PURPOSE: The spinal cord is subject to a periodic, cardiac-related movement, which is increased at the level of a cervical stenosis. Increased oscillations may exert mechanical stress on spinal cord tissue causing intramedullary damage. Motion analysis thus holds promise as a biomarker related to disease progression in degenerative cervical myelopathy. Our aim was characterization of the cervical spinal cord motion in patients with degenerative cervical myelopathy. MATERIALS AND METHODS: Phase-contrast MR imaging data were analyzed in 55 patients (37 men; mean age, 56.2 [SD,12.0] years; 36 multisegmental st...
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Hupp, M., Pfender, N., Vallotton, K., Rosner, J., Friedl, S., Zipser, C. M., Sutter, R., Klarhöfer, M., Spirig, J. M., Betz, M., Schubert, M., Freund, P., Farshad, M., Curt, A. Tags: SPINE Source Type: research

Neuroradiologic Phenotyping of Galactosemia: From the Neonatal Form to the Chronic Stage [PEDIATRICS]
SUMMARY: Galactosemia is a rare genetic condition caused by mutation of enzymes involved in galactose and glucose metabolism. The varying clinical spectrum reflects the genetic complexity of this entity manifesting as acute neonatal toxicity syndrome, requiring prompt diagnosis and treatment, to more insidious clinical scenarios as observed in the subacute and chronic presentations. The current literature predominantly focuses on the long-standing sequelae of this disease. The purpose of this multicenter clinical report comprising 17 patients with galactosemia is to highlight the MR imaging patterns encompassing the whole ...
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Rossi-Espagnet, M. C., Sudhakar, S., Fontana, E., Longo, D., Davison, J., Petengill, A. L., Bevivino, E., Pacheco, F. T., da Rocha, A. J., Hanagandi, P., Soldatelli, M., Mankad, K., do Amaral, L. L. F. Tags: PEDIATRICS Source Type: research

Impact of Prematurity on the Tissue Properties of the Neonatal Brain Stem: A Quantitative MR Approach [PEDIATRICS]
BACKGROUND AND PURPOSE: Preterm birth interferes with regular brain development. The aim of this study was to investigate the impact of prematurity on the physical tissue properties of the neonatal brain stem using a quantitative MR imaging approach. MATERIALS AND METHODS: A total of 55 neonates (extremely preterm [n = 30]:
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Schmidbauer, V., Dovjak, G., Geisl, G., Weber, M., Diogo, M. C., Yildirim, M. S., Goeral, K., Klebermass-Schrehof, K., Berger, A., Prayer, D., Kasprian, G. Tags: PEDIATRICS Source Type: research

3D Cranial Nerve Imaging, a Novel MR Neurography Technique Using Black-Blood STIR TSE with a Pseudo Steady-State Sweep and Motion-Sensitized Driven Equilibrium Pulse for the Visualization of the Extraforaminal Cranial Nerve Branches [HEAD & NECK]
This study investigated the feasibility of a 3D black-blood STIR TSE sequence with a pseudo steady-state sweep and motion-sensitized driven equilibrium pulse for extraforaminal cranial nerve imaging on a 3T system. Assessments of healthy volunteers showed near-perfect agreement in nerve visualization with excellent to good visualization of the extraforaminal trigeminal, greater occipital, and facial nerves. Suppression of surrounding tissues was excellent to good. 3D cranial nerve imaging can produce nerve selective imaging of extraforaminal cranial and spinal nerve branches. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Van der Cruyssen, F., Croonenborghs, T.- M., Hermans, R., Jacobs, R., Casselman, J. Tags: HEAD & amp; NECK Source Type: research

Non-EPI versus Multishot EPI DWI in Cholesteatoma Detection: Correlation with Operative Findings [HEAD & NECK]
CONCLUSIONS: HASTE outperforms readout-segmented EPI in the detection of primary cholesteatoma and disease recidivism. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Benson, J. C., Carlson, M. L., Lane, J. I. Tags: HEAD & amp; NECK Source Type: research

Real-Time Ultrasound Image Fusion with FDG-PET/CT to Perform Fused Image-Guided Fine-Needle Aspiration in Neck Nodes: Feasibility and Diagnostic Value [HEAD & NECK]
CONCLUSIONS: Real-time ultrasound image fusion with FDG-PET-positive nodes is feasible in cervical lymph nodes, and fused ultrasound-guided fine-needle aspiration increases the number of malignant nodes detected. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: de Koekkoek-Doll, P. K., Maas, M., Vogel, W., Castelijns, J., Smit, L., Zavrakidis, I., Beets-Tan, R., van den Brekel, M. Tags: HEAD & amp; NECK Source Type: research

Computer-Aided Diagnostic System for Thyroid Nodules on Ultrasonography: Diagnostic Performance Based on the Thyroid Imaging Reporting and Data System Classification and Dichotomous Outcomes [HEAD & NECK]
BACKGROUND AND PURPOSE: Artificial intelligence-based computer-aided diagnostic systems have been introduced for thyroid cancer diagnosis. Our aim was to compare the diagnostic performance of a commercially available computer-aided diagnostic system and radiologist-based assessment for the detection of thyroid cancer based on the Thyroid Imaging Reporting and Data Systems (TIRADS) and dichotomous outcomes. MATERIALS AND METHODS: In total, 372 consecutive patients with 454 thyroid nodules were enrolled. The computer-aided diagnostic system was set up to render a possible diagnosis in 2 formats, the Korean Society of Thyroi...
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Han, M., Ha, E. J., Park, J. H. Tags: HEAD & amp; NECK Source Type: research

Glioma-Induced Disruption of Resting-State Functional Connectivity and Amplitude of Low-Frequency Fluctuations in the Salience Network [FUNCTIONAL]
BACKGROUND AND PURPOSE: Cognitive challenges are prevalent in survivors of glioma, but their neurobiology is incompletely understood. The purpose of this study was to investigate the effect of glioma presence and tumor characteristics on resting-state functional connectivity and amplitude of low-frequency fluctuations of the salience network, a key neural network associated with cognition. MATERIALS AND METHODS: Sixty-nine patients with glioma (mean age, 48.74 [SD, 14.32] years) who underwent resting-state fMRI were compared with 31 healthy controls (mean age, 49.68 [SD, 15.54] years). We identified 4 salience network ROI...
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Yang, J., Gohel, S., Zhang, Z., Hatzoglou, V., Holodny, A. I., Vachha, B. A. Tags: FUNCTIONAL Source Type: research

Tailored Vessel-Catheter Diameter Ratio in a Direct Aspiration First-Pass Technique: Is It a Matter of Caliber? [INTERVENTIONAL]
CONCLUSIONS: The aspiration catheter should be selected according to culprit vessel diameter. The optimal vessel-catheter ratio cutoffs were ≤1.51 for modified TICI ≥ 2b with an odds ratio of 9.2 and a relative risk of 3.2. (Source: American Journal of Neuroradiology)
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Pampana, E., Fabiano, S., De Rubeis, G., Bertaccini, L., Stasolla, A., Vallone, A., Pingi, A., Mangiardi, M., Anticoli, S., Gasperini, C., Cotroneo, E. Tags: INTERVENTIONAL Source Type: research

Endovascular Treatment of Ruptured Intracranial Blister Aneurysms: A Systematic Review and Meta-analysis [INTERVENTIONAL]
BACKGROUND: Endovascular treatment of blister aneurysms is a promising approach, even though they are vascular lesions challenging to treat due to their angioarchitectural characteristics. PURPOSE: Our aim was to investigate clinical and radiologic outcomes after endovascular treatment of ruptured blister aneurysms. DATA SOURCES: PubMed, Ovid MEDLINE, Ovid EMBASE, Scopus, and the Web of Science were screened. STUDY SELECTION: We performed a comprehensive review of the literature from 2010 to 2019 reporting series of patients with blister aneurysms treated with an endovascular approach. DATA ANALYSIS: Event rates were p...
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Scerrati, A., Visani, J., Flacco, M. E., Ricciardi, L., Trungu, S., Raco, A., Dones, F., De Bonis, P., Sturiale, C. L. Tags: INTERVENTIONAL Source Type: research