Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Aaron S. McAllister"'
Publikováno v:
Neurosurgery clinics of North America. 34(1)
Chiari I Malformation represents a hindbrain anomaly best demonstrated radiographically with MRI. Brain and spine MRI provide optimal anatomic detail of cerebellar tonsillar descent below the foramen magnum and may reveal additional imaging features
Autor:
Ronald G. Pratt, Greg Lee, Aaron S. McAllister, Daniel R. Smith, Gregory D. Myer, Christopher M. Ireland, Wolfgang M. Loew, Matt Lanier, Hui Wang, Jed A. Diekfuss, Weihong Yuan, Charles L. Dumoulin
Publikováno v:
Journal of neuroscience methods. 382
A device for moving the head during MR imaging, called a Weighted Head Accelerator Mechanism (WHAM), rotates the head of a supine subject within programmable rotation limits and acceleration profiles. The WHAM can be used with custom MRI sequences to
Autor:
Bhavani Selvaraj, Mark Smith, Aaron S. McAllister, Ning Jin, Kun Zhou, Houchun H. Hu, Ramkumar Krishnamurthy, Lacey J Lubeley
Publikováno v:
Academic Radiology. 26:1597-1604
We describe our preliminary experience using a 2D turbo gradient- and spin-echo (TGSE) diffusion-weighted (DW) pulse sequence with non-Cartesian BLADE trajectory at 3 T in pediatric patients. We compared the TGSE BLADE to conventional DW spin-echo ec
Autor:
Dimitrios C. Karampinos, Danny J.J. Wang, Barbara Cervantes, Eric E. Nelson, Aaron S. McAllister, Ramkumar Krishnamurthy, Houchun H. Hu
Publikováno v:
Pediatric Neurology. 96:7-23
Magnetic resonance imaging (MRI) is a powerful radiologic tool with the ability to generate a variety of proton-based signal contrast from tissues. Owing to this immense flexibility in signal generation, new MRI techniques are constantly being develo
Autor:
Kai Tobias Block, Ramkumar Krishnamurthy, Houchun H. Hu, Jeremy Jones, Jerome Rusin, Thomas Benkert, Aaron S. McAllister
Publikováno v:
Clinical Imaging. 55:112-118
T1-weighted post-contrast MRI is essential in brain protocols. We demonstrate the feasibility and utility of a 3D non-Cartesian radial acquisition in children.To compare bulk motion artifacts, image quality, and lesion conspicuity in 3D T1-weighted p
Autor:
Jerome Rusin, Kai Tobias Block, Thomas Benkert, Mark Smith, Ramkumar Krishnamurthy, Houchun H. Hu, Aaron S. McAllister, Jeremy Jones
Publikováno v:
Neuroradiology. 61:341-349
MRI methods that have reduced sensitivity to motion are attractive in pediatric applications. In spine imaging, physiologic motion such as respiration and cerebrospinal fluid pulsation can hamper diagnostic image quality. We compare a 3D T1-weighted
Publikováno v:
Pediatric Radiology. 47:674-680
A crayon fragment was determined to be the source of a foreign body inflammatory process in the masticator space of a 15-month-old boy. The appearance of the crayon on CT and MR imaging was unexpected, leading to a further analysis of the imaging fea
Publikováno v:
Radiographics : a review publication of the Radiological Society of North America, Inc. 39(4)
Owing to physiologic and biomechanical differences, the incidence, patterns, distributions, and mechanisms of spinal injury in children differ from those in adults. Furthermore, evaluation of the spine can be complicated by synchondroses, development
Autor:
Houchun H. Hu, Aaron S. McAllister
Publikováno v:
Radiology
BACKGROUND: It is well known that white matter injuries observed at birth are associated with adverse neurodevelopmental outcomes later in life. Whether white matter developmental variations in healthy newborns are also associated with changes in lat
Autor:
Diana S Osorio, Jonathan Pindrik, Elizabeth Varga, Jonathan L. Finlay, Aaron S. McAllister, Mohamed S. AbdelBaki, Daniel R. Boue, Jeffrey R. Leonard, Margaret Shatara, Diana P Rodriguez, Catherine E. Cottrell, Lisa Martin, Kristen M. Leraas, Kathleen M. Schieffer, Jeremy Jones, Jerome Rusin, Tara M. Lichtenberg, Elaine R. Mardis
Publikováno v:
Neuro-Oncology
BACKGROUND Noonan syndrome (NS) is associated with germline Ras signaling pathway mutations, RAS overactivation and increased tumorigenesis risk. Rosette-forming glioneuronal tumors (RFGT) are rare indolent tumors. We report the molecular profiling o