Publications by authors named "S Langner"

Introduction: The chicken egg, with its compartments, is a widely used and popular animal model in experimental studies. This study aimed to quantify the volumes of the yolk/yolk sac, amniotic fluid, and chicken embryo using non-invasive ultra-high-field magnetic resonance imaging (UHF-MRI).

Materials And Methods: In total, 64 chicken eggs were examined using a 7 T UHF-MRI scanner, acquiring T2-weighted anatomical images of the entire egg from developmental day 1 to 16 (D1-D16).

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Purpose: The role of lung biopsy for evaluation of persistent chest radiographic abnormalities including secondary organizing pneumonia (OP) in COVID-19 remains uncertain. This study aimed to evaluate the diagnostic value of trans-bronchial forceps biopsy (TBFB) in patients with persistent lung abnormalities on thoracic computed tomography (CT) scan following SARS-CoV-2 infection with particular focus on cases with OP and immunocompromised (IC) patients.

Methods: Descriptive retrospective single center analysis of all TBFB performed for diffuse lung parenchymal changes after COVID-19 03-2020 to 06-2023.

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Article Synopsis
  • This study examined the connection between two imaging techniques, Quantitative Susceptibility Mapping (QSM) and Transcranial Sonography (TCS), to evaluate iron levels in the substantia nigra of patients with Parkinson's disease (PD).
  • Eighteen imaging sessions were conducted on 15 PD patients, revealing strong correlations between nigral iron susceptibility and TCS measurements of echogenicity.
  • The findings suggest that increased iron accumulation in the substantia nigra may contribute to the observed echogenicity in PD, with echogenicity likely reflecting stored ferritin-bound iron in microglia.
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Objective: The current study aims to investigate whether objective measurements of the cochlear nerve (CN), derived from preoperative MRI images, correlate with postoperative speech perception in CI patients.

Study Design: Retrospective cohort study.

Setting: University Medical Center, tertiary academic referral center.

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