Results 111 to 120 of about 455,909 (199)

Evaluating Perfusion Quantification for Phase‐Resolved Functional Lung MRI Using Gaussian Filtering

NMR in Biomedicine, Volume 39, Issue 11, November 2026.
Current PREFUL perfusion quantification uses a slice‐wise median for the maximal blood exchange fraction ΔS, limiting regional information. Gaussian filtering (σ = 1.5) ΔS in perfusion calculation adds regional information and improves intrascan and interscan repeatability while preserving global and voxel‐wise correlations with DCE‐derived pulmonary ...
Kirsten J. Schmidt, Andreas Voskrebenzev, Julian M. W. Glandorf, Marius M. Klein, Lea Behrendt, Frank Wacker, Jens Vogel‐Claussen, Filip Klimeš   +7 more
wiley   +1 more source

Molybdooxaziridine Catalysis: Synthesis of α‐Hydroxysulfones From Styrenes Through an ATRA Process

European Journal of Organic Chemistry, Volume 29, Issue 39, 22 October 2026.
This work has discovered that molybdooxaziridine catalysts promote the hydroxysulfonation of substituted α‐methyl‐styrenes using N‐Ts‐hydroxylamine as the nitrogen source. An atom‐transfer‐radical‐addition mechanism involving the stepwise addition of Ts and hydroxy radicals takes place.
Alyssa N. Singer, Gustavo Moura‐Letts
wiley   +1 more source

SC-GROG followed by L+S reconstruction with multiple sparsity constraints for accelerated Golden-angle-radial DCE-MRI.

PLoS ONE
The GRASP (Golden-angle-radial Sparse Parallel MRI) is a contemporary method for reconstructing dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI).
Faisal Najeeb, Kashif Amjad, Irfan Ullah, Hammad Omer   +3 more
doaj   +1 more source

Exploring the Mechanism of Postpartum Cognitive Dysfunction in a Preeclampsia Rat Model via Multimodal Imaging

The FASEB Journal, Volume 40, Issue 19, 15 October 2026.
This schematic illustrates an L‐NAME‐induced preeclampsia (PE) rat model generated via L‐NAME administration to pregnant dams, wherein Morris water maze assessments confirmed progressive postpartum cognitive dysfunction that emerged at 10 days post‐partum and deteriorated further at 1 and 3 months post‐partum. Multimodal magnetic resonance imaging (MRI)
Yong Xia, Junguo Zhao, Bo Gao
wiley   +1 more source

Prostate MRI vascular markers and erectile function after nerve‐sparing prostatectomy

BJUI Compass, Volume 7, Issue 10, October 2026.
Abstract Objectives To determine whether preoperative multiparametric magnetic resonance imaging (mpMRI)‐derived vascular markers are associated with baseline and postoperative erectile function (EF) and change in EF in men undergoing bilateral nerve‐sparing robot‐assisted radical prostatectomy (RARP).
Abdullah Al‐Mitwalli, Matthew Megson, Dalia Mohammed, Ahmed Al‐Nowfal, Conrad Von Stempel, Wai Gin Lee, David Ralph, Zafer Tandogdu   +7 more
wiley   +1 more source

MTFN: multi-temporal feature fusing network with co-attention for DCE-MRI synthesis

BMC Medical Imaging
Background Dynamic Contrast Enhanced Magnetic Resonance Imaging (DCE-MRI) plays an important role in the diagnosis and treatment of breast cancer. However, obtaining complete eight temporal images of DCE-MRI requires a long scanning time, which causes ...
Wei Li, Jiaye Liu, Shanshan Wang, Chaolu Feng   +3 more
doaj   +1 more source

Role of Dynamic Contrast-Enhanced MRI in Detecting Post-Treatment Local Recurrence of Soft-Tissue Sarcomas: A Systematic Review and Meta-Analysis

Diagnostics
Background: The role of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in detecting soft-tissue sarcoma (STS) local recurrence (LR) following therapeutic intervention was evaluated.
Arash Azhideh, Howard Chansky, Peyman Mirghaderi, Sara Haseli, Bahar Mansoori, Navid Faraji, Chankue Park, Shakiba Houshi, Majid Chalian   +8 more
doaj   +1 more source

Procedural Learning and Retention in Older Subjects: The Contribution of Sensorimotor and Premotor Cortex

Brain and Behavior, Volume 16, Issue 10, October 2026.
Procedural learning is preserved, and consolidation is enhanced in healthy older adults. These behavioral effects are associated with increased recruitment of contralateral sensorimotor and premotor cortices during learning. ABSTRACT Purpose To investigate the neurobiological basis of procedural learning and retention of motor memories in aging ...
Christopher E. J. Doppler, Linda Meyer, Ralph Weidner, Peter H. Weiss, Gereon R. Fink   +4 more
wiley   +1 more source

Multiple‐TE Based Blood–Brain‐Barrier Water Exchange Time Measurement Using a TE‐Resolved 3D TSE Stack‐Of‐Spirals Readout

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1629-1644, October 2026.
ABSTRACT Purpose To develop a slice‐wise blurring‐free and densely sampled TE‐resolved multiple‐TE (mTE) ASL sequence (TASL) for measuring blood–brain barrier (BBB) water exchange time. Methods A 3D TSE spiral‐readout pCASL sequence was modified to enable TE‐resolved acquisition.
Bo Li, Yiran Li, Xiao Liang, Amnah Mahroo, Manuel Taso, Marta Vidorreta Díaz de Cerio, Lucas Lemos Franco, Yulin Chang, María Asunción Fernández Seara, Matthias Günther, John A. Detre, Ze Wang   +11 more
wiley   +1 more source

Blind Estimation Versus Direct Measurement of the Arterial Input Function in Dynamic Contrast‐Enhanced MRI of the Breast

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1947-1955, October 2026.
PurposeAccurate arterial input functions (AIFs) are essential for quantitative dynamic contrast‐enhanced (DCE) MRI, yet direct measurement is challenging and population‐averaged AIFs neglect patient‐specific variability. Blind deconvolution provides an alternative by estimating patient‐specific AIFs directly from tissue data, up to a scale factor. This
Jake L. Cray, Jiří Vitouš, Radovan Jiřík, Sofya Titarenko, David L. Buckley   +4 more
wiley   +1 more source