Results 251 to 260 of about 99,506 (358)

Dynamic pseudo‐continuous arterial spin labeling angiography using a 3D‐radial multi‐spoke spoiled gradient‐recalled sequence

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 2, Page 724-739, February 2026.
Abstract Purpose Accurate identification of arterial feeders and draining veins is critical for treatment decision‐making in patients with intracranial high‐flow vascular lesions. Currently available MRI sequences lack the temporal and spatial resolution needed for this task.
Andreas Petrovic   +6 more
wiley   +1 more source

Prevalence of os odontoideum: a systematic review, meta-analysis and meta-regression with implications for vertebral artery and osseous anomalies. [PDF]

open access: yesNeurosurg Rev
Klepinowski T   +7 more
europepmc   +1 more source

Ex vivo human brain volumetry: Validation of MRI measurements

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 2, Page 853-867, February 2026.
Abstract Purpose The volume of in vivo human brains is determined with various MRI measurement tools that have not been assessed against a gold standard. The purpose of this study was to validate the MRI brain volumes by scanning ex vivo, in situ specimens, which allows the extraction of the brain after the scan to compare its volume with the gold ...
Amy Gérin‐Lajoie   +7 more
wiley   +1 more source

Bidirectional crusher gradient method to estimate the labeling efficiency of pseudo‐continuous arterial spin labeling MRI in mice

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 2, Page 912-926, February 2026.
Abstract Purpose To develop an experimental method for measuring the labeling efficiency of pseudo‐continuous arterial spin labeling (pCASL) MRI in mice. Methods We propose a method using bidirectional crusher gradients to modulate vascular signals in the azygos pericallosal artery (azPA) of the mouse brain, applied with and without pCASL labeling. The
Xiuli Yang   +5 more
wiley   +1 more source

Optimization of pseudo‐continuous arterial spin labeling for brain perfusion imaging in the intraoperative setting

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 2, Page 1123-1134, February 2026.
Abstract Purpose Pseudo‐continuous arterial spin labeling (PCASL) efficiency during intraoperative MRI is degraded due to large field inhomogeneities observed in some patients and lower arterial blood velocities induced by anesthesia. The purpose of this work was to maximize labeling efficiency during intraoperative MRI by optimizing PCASL parameters ...
Carmen Sánchez‐Albardíaz   +11 more
wiley   +1 more source

Impact of Sarcopenia During Induction Treatment in Patients With Unresectable Locally Advanced Pancreatic Cancer

open access: yesAnnals of Gastroenterological Surgery, Volume 10, Issue 1, Page 211-218, January 2026.
This study identified three preoperative prognostic factors—tumor size at 6 months, lymph node metastasis at diagnosis, and decline in psoas muscle mass (sarcopenia)—in patients with unresectable locally advanced pancreatic cancer. Conversion surgery was associated with improved survival only in patients without these risk factors, highlighting the ...
Sho Uemura   +8 more
wiley   +1 more source

Distal and proximal embolization for penetrating vertebral artery injury: illustrative case. [PDF]

open access: yesJ Neurosurg Case Lessons
Akaike N   +6 more
europepmc   +1 more source

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