Results 161 to 170 of about 167,748 (392)

T2‐Weighted T1 Mapping and Automated Segmentation of CSF: Assessment of Solute Gradients in the Healthy Brain

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Cerebrospinal fluid (CSF) serves as a medium for nutrient delivery and waste clearance. The T1 relaxation rate, R1, can be used to measure the concentration of intrinsic solutes and extrinsic contrast agents. Purpose To implement a method for R1 mapping and segmentation of CSF and to use this method to explore how R1 of CSF relates ...
Tryggve Holck Storås, Sofie Lysholm Lian, Ingrid Mossige, Jørgen Riseth, Siri Fløgstad Svensson, Grethe Løvland, Geir Ringstad, Kent‐André Mardal, Kyrre Eeg Emblem, Kaja Nordengen   +9 more
wiley   +1 more source

Mapping Intracellular Volume Fraction With Susceptibility Source Decomposition as a Marker for Tissue Cellularity

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Pathophysiological changes affect tissue cell composition and density. For example, neurodegenerative disorders and brain tumors are associated with cell loss and abnormal accumulation, respectively. In these scenarios, if monitored and tracked, tissue cellularity might be used to inform clinical diagnosis and management. Purpose To
Giulia Debiasi, Oliver C. Kiersnowski, Giovanni Librizzi, Luca Roccatagliata, Renzo Manara, Mauro Costagli, Alessandra Bertoldo, Chunlei Liu   +7 more
wiley   +1 more source

Clinical Validation of a Fast MRI Method to Evaluate Brain Vascular and Parenchymal Abnormalities in Sturge‐Weber Syndrome

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Sturge‐Weber syndrome (SWS) is a rare neurocutaneous disorder associated with venous capillary malformations, atrophy, and calcifications. Longitudinal imaging is limited by risks of sedation and gadolinium exposure in children.
Scotty G. McKay, Yongsheng Chen, E. Mark Haacke, Yang Xuan, Aimee F. Luat, Csaba Juhász   +5 more
wiley   +1 more source

Laser in Clinical Ophthalmology: Possible Applications, Limitations, and Hazards [PDF]

, 1965
The present status of laser application in clinical ophthalmology is discussed. The differences between conventional light coagulator characteristics and those of presently available ruby lasers for clinical use are compared.
Geeraets, Walter J.
core   +1 more source

Diagnostic dilemma of cystic biliary atresia: A series of two cases and brief review of the diagnostic modalities

JPGN Reports, EarlyView.
Abstract Cystic biliary atresia (CBA) is a rare variant of biliary atresia that closely resembles choledochal cyst (CC), complicating diagnosis and potentially delaying critical surgical intervention. We report two cases of CBA that were difficult to diagnose.
Hamza Hassan Khan, Leslie Hirsig Spence, Nagraj Kasi   +2 more
wiley   +1 more source

ChOP-CT: quantitative morphometrical analysis of the Hindbrain Choroid Plexus by X-ray micro-computed tomography

Fluids and Barriers of the CNS
The Hindbrain Choroid Plexus is a complex, cerebrospinal fluid-secreting tissue that projects into the 4th vertebrate brain ventricle. Despite its irreplaceability in the development and homeostasis of the entire central nervous system, the research of ...
Viktória Parobková, Petra Kompaníková, Jakub Lázňovský, Michaela Kavková, Marek Hampl, Marcela Buchtová, Tomáš Zikmund, Jozef Kaiser, Vítězslav Bryja   +8 more
doaj   +1 more source

Comparative Study of Accommodative Function and Binocular Vision in Patients With Primary Angle‐Closure Disease

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT The age‐related decline in accommodative function after the age of 50 years corresponds with an increasing incidence of primary angle‐closure disease (PACD); however, the interaction between this decline and PACD remains unexamined. Additionally, refractive error‐accommodation associations in elderly individuals, which are critical for PACD ...
Feng‐Rui Yang, Zhi‐Qiao Liang, Ye Lu, Yao Ma, Kun Lv, Qian Zhang, Hui‐Juan Wu   +6 more
wiley   +1 more source

Not So Benign: A Rare Atypical Ectopic Choroid Plexus Papilloma [PDF]

, 2021
Rajan Patel, Douglas Lukins, John L. Villano, Pushpalatha Sudhakar   +3 more
openalex   +1 more source

Velocity Spectrum Imaging Using Velocity Encoding Preparation Pulses

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The goal of this article is to introduce a technique to measure the velocity distribution of water inside each voxel of an MR image. The method is based on the use of motion sensitizing gradients with changing first moment to encode velocity. As such, it is completely non‐invasive and requires no contrast injections.
Luis Hernandez‐Garcia, Alberto L. Vazquez, Douglas C. Noll   +2 more
wiley   +1 more source

Melanoma of the Choroid and Ciliary Body in Children: Remission of Metastatic Melanoma of the Choroid After Treatment With Chemotherapy and Immune Checkpoint Inhibition

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Uveal melanoma is the most common malignant primary intraocular tumor in adults, associated with high mortality. Pediatric uveal melanoma generally has a more favorable course. However, when metastasis occurs, therapeutic options are limited.
Pia Tüller, Tobias Kiefer, Leyla Jabbarli, Kyriaki Papaioannou, Kathrin Schramm, Nicole Barwinski, Stefan Schönberger, Ines B. Brecht, Dominik T. Schneider, Elisabeth Livingstone, Lisa Zimmer, Karen Fischhuber, Andreas Junker, Saskia Ting, Cordula Kiewert, Sophia Göricke, Nikolaos Bechrakis, Eva Biewald, Petra Ketteler   +18 more
wiley   +1 more source