Results 151 to 160 of about 1,304,433 (350)

Left atrial function in uraemic patients: Four‐dimensional automatic left atrial quantitative technology study

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1316-1325, April 2025.
Abstract Objective This study aimed to evaluate the utility of left atrial volume and function in uraemic patients using four‐dimensional automatic left atrial quantification (4D auto LAQ) technology. Methods Thirty‐four undialysed uraemic patients (U‐ND group), 60 dialysed uraemic patients (U‐D group), and 32 healthy volunteers (N group) were enrolled
Bing Li, Meihua Chen, Xuning Huang
wiley   +1 more source

Focal Spot, Spring 1987 [PDF]

open access: yes, 1987
https://digitalcommons.wustl.edu/focal_spot_archives/1045/thumbnail ...

core   +1 more source

Mono‐dimensional, two‐dimensional and Doppler echocardiographic measurements in healthy Standardbred neonatal foals in the first 5 days of life

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Bodyweight, age and breed influence the echocardiographic assessment of foals. There are no echocardiographic studies in Standardbred neonatal foals. Objectives To describe echocardiographic values for selected variables, evaluate intra‐ and inter‐observer variability and assess cardiac changes in the first 5 days of life in healthy
Fernanda Timbó D'el Rey Dantas   +8 more
wiley   +1 more source

Transoral Styloidectomy Approach: A Systematic Review and Enhanced Endoscopic Approach

open access: yesHead &Neck, EarlyView.
ABSTRACT Background Synthesize transoral styloidectomy approaches, highlight advantages, disadvantages, surgical outcomes, and describe an improved endoscopic transoral technique. Methods A systematic review of peer‐reviewed articles was conducted on November 11, 2025 in PubMed, Embase, the Cochrane Library, and Medline.
Nana‐Hawwa Abdul‐Rahman   +4 more
wiley   +1 more source

Fetal and umbilical Doppler ultrasound in high-risk pregnancies.

open access: yesCochrane Database of Systematic Reviews, 2017
Z. Alfirevic, T. Stampalija, T. Dowswell
semanticscholar   +1 more source

Limited Sensitivity of Ultrasound‐Guided Fine‐Needle Aspiration Cytology for Occult Nodal Metastases in Early‐Stage Oral Squamous Cell Carcinoma

open access: yesHead &Neck, EarlyView.
ABSTRACT Background Ultrasound‐guided fine‐needle aspiration cytology (US‐FNAC) is commonly used in the diagnostic work‐up of head and neck cancer, but its ability to detect occult lymph node metastases in early‐stage oral squamous cell carcinoma (OSCC) with a clinically negative neck remains unclear.
Dominique N. V. Donders   +7 more
wiley   +1 more source

Research progress on the use of the optical coherence tomography system for the diagnosis and treatment of central nervous system tumors

open access: yesIbrain, Volume 11, Issue 1, Page 3-18, Spring 2025.
With the advantages of high‐resolution imaging, efficient image acquisition, intraoperative real‐time detection, and radiation‐free and noninvasive characteristics, optical coherence tomography (OCT) provides accurate diagnosis and effective intraoperative guidance for the minimally invasive diagnosis and treatment of central nervous system (CNS ...
Jiuhong Li   +10 more
wiley   +1 more source

High-frequency Doppler ultrasound flowmeter

open access: yesArchives of Acoustics, 2014
This paper discusses a new Doppler device for measuring blood flow in small vessels. The ultrasound frequency applied is 20M Hz. Two different ultrasound probes were designed with transducer diameters of 0.9 mm and 1.6 mm. The transducers were located at
A. NOWICKI   +3 more
doaj  

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