Results 41 to 50 of about 291 (157)

QT Interval Evaluation in Right Ventricular Pacing: Validation of a Novel Formula

open access: yesPacing and Clinical Electrophysiology, EarlyView.
Abstract Background QT interval measurement in the presence of right ventricular pacing (RVP) represents a clinical challenge. We therefore aimed to derive and validate a formula for QT estimation during RVP in a large cohort of pacemaker patients. Methods and Results We prospectively enrolled 100 patients in a derivation cohort and 487 in a validation
Amr Abdin   +9 more
wiley   +1 more source

(Dis)agreement and concordance of metabolic indices from the oral glucose tolerance test and mixed‐meal tolerance test: Implications for application

open access: yesExperimental Physiology, EarlyView.
Abstract Metabolic indices derived from the oral glucose tolerance test (OGTT) and mixed‐meal tolerance test (MMTT) are often interpreted interchangeably; however, these tests represent distinct physiological stimuli. In order to examine potential differential metabolic responses to these tests, we characterized the (dis)agreement between OGTT‐ and ...
Nina Sloth Nielsen   +12 more
wiley   +1 more source

Quantifying skin microvascular function responses to distinct forms of heat stress in humans using optical coherence tomography

open access: yesExperimental Physiology, EarlyView.
Abstract Optical coherence tomography (OCT) enables visualization and quantification of the cutaneous microvasculature, yet no study has compared responses to distinct forms of heating in humans. We hypothesized that local skin heating (LH) would evoke larger responses in microvascular diameter, velocity, flow and density than passive whole‐body ...
Kristanti W. Wigati   +5 more
wiley   +1 more source

Multifocal Langerhans' Cell Histiocytosis in an Adult. [PDF]

open access: yesIran J Otorhinolaryngol, 2023
Nourizadeh N   +3 more
europepmc   +1 more source

Single‐Breathhold 3D MR Elastography in the Liver, With Simultaneous R2* and PDFF Mapping

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 2, Page 682-697, August 2026.
Purpose To develop a sequence for the rapid acquisition of MR elastography (MRE) parameters in 3D, with simultaneous measurement of proton‐density fat fraction (PDFF) and R2* for multiparametric assessment of liver disease. Methods The proposed sequence uses an interleaved motion‐encoding scheme to acquire 3D volumes of all motion encodings and wave ...
Donovan P. Tripp   +10 more
wiley   +1 more source

Clinical Profile of Parathyroid Adenoma in Children and Adolescents: A Single-Center Experience. [PDF]

open access: yesTurk Arch Pediatr, 2023
Kızılcan Çetin S   +7 more
europepmc   +1 more source

Repeatability of Metabolic Imaging With Hyperpolarized Pyruvate: Back‐to‐Back Neuroimaging and Blood Analysis

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 2, Page 548-556, August 2026.
ABSTRACT Purpose 13C MRI with hyperpolarized [1‐13C]pyruvate enables noninvasive imaging of metabolic pathways. Considering the high dose of pyruvate used in hyperpolarized 13C‐pyruvate studies, circulating 13C‐pyruvate and the resulting 13C‐lactate in plasma may influence subsequent pyruvate metabolism, yet the guidance on consecutive injections does ...
Jun Chen   +12 more
wiley   +1 more source

Reproducibility of Splanchnic Blood Flow Measured Using Phase‐Contrast MRI

open access: yesNMR in Biomedicine, Volume 39, Issue 8, August 2026.
Splanchnic vessel blood flow assessment can describe physiology or pathophysiological conditions. Here, we assessed the variation of PC‐MRI‐determined repeated measures of blood flow in four splanchnic vessels in three populations and two MRI‐scanners. We found similar agreements with the means for both scanners and for healthy individuals and patients
Lærke S. Gasbjerg   +11 more
wiley   +1 more source

Adamantinomatous craniopharyngioma: evolution in the management. [PDF]

open access: yesChilds Nerv Syst, 2023
Massimi L   +6 more
europepmc   +1 more source

Pre‐ and Post‐Interventional Hemodynamic Characterization of the Femoropopliteal Artery Using Vector Flow Imaging in Peripheral Arterial Occlusive Disease

open access: yesJournal of Ultrasound in Medicine, Volume 45, Issue 7, Page 1397-1407, July 2026.
Objectives The femoropopliteal (FP) artery is the most frequently revascularized segment in peripheral artery disease (PAD), followed by the iliac segment. Wall shear stress (WSS) is a key local factor implicated in both atherosclerotic plaque formation and restenosis after angioplasty.
Jan Lukas Prüser   +5 more
wiley   +1 more source

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