A beam of light incident upon a diffractive structure can under resonance conditions be subject to a rather large lateral displacement. The effect is demonstrated with a Gaussian profile beam and two geometries based on a waveguide grating and a single-mode waveguide.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1364/ol.23.000576 | DOI Listing |
BMC Med Imaging
January 2025
Department of Ultrasound Medicine, First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China.
Background: Langerhans cell histiocytosis (LCH) is a rare disease, most prevalent in children. Ultrasound is a noninvasive, cheap, and widely available technique. However, systematic elucidation of sonographic features of LCH and treatment related follow-up are relatively few, resulting in overall underestimation of the clinical value of ultrasound in diagnosing and monitoring LCH.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Radiology, The First Hospital of China Medical University, Shenyang, Liaoning, PR China.
Much evidence suggests that the choroid plexus (CP) plays an important role in the pathophysiology of systemic lupus erythematosus (SLE), but its imaging profile in neuropsychiatric SLE (NPSLE) remains unexplored. To evaluate CP volume in NPSLE patients using MRI. This retrospective study evaluated patients with SLE who underwent MRI of the brain, including three-dimensional T1-weighted imaging.
View Article and Find Full Text PDFInt Ophthalmol
January 2025
Department of Ophtalmology, Dokuz Eylul University School of Medicine, Izmir, Turkey.
Purpose: This retrospective study aimed to characterize the clinical features, histopathological findings, and treatment outcomes of patients diagnosed with orbital inflammatory disease (OID) co-managed by the rheumatology and ophthalmology departments in a tertiary hospital.
Methods: Medical records of 14 patients with OID were analyzed. Data on demographics, clinical presentation, laboratory investigations, radiological imaging, histopathological results, treatment regimens, and disease outcomes were collected and reviewed.
Insights Imaging
January 2025
IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.
Entrapment neuropathies at the elbow are common in clinical practice and require an accurate diagnosis for effective management. Understanding the imaging characteristics of these conditions is essential for confirming diagnoses and identifying underlying causes. Ultrasound serves as the primary imaging modality for evaluating nerve structure and movement, while MRI is superior for detecting muscle denervation.
View Article and Find Full Text PDFAcad Radiol
January 2025
Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan (T.W.L., C.H.W.); Center of Minimal-Invasive Interventional Radiology, National Taiwan University Hospital, Taipei, Taiwan (C.H.W.); Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan (C.H.W.). Electronic address:
Rationale And Objectives: Individuals with autosomal dominant polycystic kidney disease (ADPKD) can present with diverse renal and extra-renal manifestations. Large vessel anomalies, such as cerebral aneurysms, are potentially fatal extra-renal manifestations. However, limited research has been conducted on cerebral small vessel disease (CSVD).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!