•Preservation of LSAs is extremely important during resections of insular gliomas.•Navigated 3D-US power Doppler may enable intraoperative visualization of LSAs.•Quality of ultrasound scanner is important when LSAs should be visualized.•Reliability of LSAs depiction by 3D-US power Doppler is still investigated.
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http://dx.doi.org/10.1016/j.bas.2022.100873 | DOI Listing |
J Am Podiatr Med Assoc
January 2025
1Podiatry Department, Faculty of Nursing, Physiotherapy, and Podiatry, Universidad de Sevilla, Sevilla, 41009, Spain.
Objectives: The objective of this study was to explore the relationship between plantar fascia (PF) thickness and various factors including pain, function, anthropometric parameters, and other variables in women diagnosed with plantar fasciopathy.
Methods: A total of 37 feet from female patients were randomly selected for this investigation. Utilizing ultrasound, the thickness of the PF was meticulously measured.
Ultramicroscopy
January 2025
Christian Doppler Laboratory for Sustainable Hard Coatings at the Department of Materials Science, Montanuniversität Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria.
The impact of the laser wavelength on accuracy in elemental composition analysis in atom probe tomography (APT) was investigated. Three different commercial atom probe systems - LEAP 3000X HR, LEAP 5000 XR, and LEAP 6000 XR - were systematically compared for a TiN model coating studying the effect of shorter laser wavelengths, especially in the deep ultraviolet (DUV) range, on the evaporation behavior. The findings demonstrate that the use of shorter wavelengths enhances the accuracy in elemental composition, while maintaining similar electric field strengths.
View Article and Find Full Text PDFInt J Gynaecol Obstet
January 2025
Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan.
Objectives: To assess hotspot micro-vessel flow velocity waveforms in human papillomavirus (HPV) cervical infections using transvaginal power Doppler ultrasound (TV-PDU) and explore associations with high-grade squamous intraepithelial lesions (HSIL, cervical intraepithelial neoplasia [CIN] II and III).
Methods: In all, 62 patients with confirmed HPV-HSIL (14 CIN II, 48 CIN III) and 65 age- and parity-matched women with neither HPV infection nor CIN were compared. Seven parameters by TV-PDU were used to assess vascular classification and micro-vessel flow velocity, including vascular grading (class I, II, III), lowest pulsatility index (PI), resistance index (RI), peak systolic velocity (PS), end-diastolic velocity (ED), time average maximum velocity (TAMV), and the vascular index (VI = PS/ED).
Front Vet Sci
December 2024
Department of Anatomy, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Istanbul, Türkiye.
Introduction: This study aims to quantify the shear wave speed (SWS) and stiffness of the uterine cervix (close to the internal cervical ostium (IOC) which is the cranial portion of cervix and close to the external cervical ostium (EOC) which is the caudal portion of cervix), caruncular areas, and vulvar labia during the postpartum period in healthy Kivircik ewes by using shear-wave elastography. Power Doppler ultrasonography was performed to evaluate the color pixel percentage (CPP) of the caruncles.
Methods: The study included 13 healthy pregnant Kivircik ewes, which were randomly selected.
Ultrasound Med Biol
January 2025
Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.
Objective: Conventional coherent plane wave compounding (CPWC) and sum-of-square power Doppler (PD) estimation lead to low contrast and high noise level in ultrafast PD imaging when the number of plane-wave angle and the ensemble length is limited. The coherence-based PD estimation using temporal-multiply-and-sum (TMAS) of high-lag autocorrelation can effectively suppress the uncorrelated noises but at the cost of signal power due to the blood flow decorrelation.
Methods: In this study, the TMAS PD estimation is incorporated with complementary subset transmit in nonlinear compounding (DMAS-CST) to leverage the signal coherence in both angular and temporal dimensions for improvement of PD image quality.
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