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2D-transperineal ultrasound in delivery room: contribution in assessing labor progress, predicting outcome of labor and recognizing obstetric anal sphincter injuries (OASIS). A systematic review.
J Gynecol Obstet Hum Reprod
January 2025
Department of Obstetrics and Gynecology, Poitiers University Hospital, 2 Rue de la Milétrie, 86000 Poitiers, France; INSERM, CIC 1402, Poitiers University Hospital; Poitiers University, Poitiers, France.
Aims: Ultrasound is used in the delivery room to assess fetal head position, engagement during labor, and anal sphincter injuries in the immediate postpartum period. The transperineal approach allows for direct visualization of the structures of interest without altering anatomical landmarks. Various ultrasound measurements during labor have been described in the literature, and their use varies widely across maternity units.
View Article and Find Full Text PDFBiFusionPathoNet: fusion network for drug-resistant bacteria identification optical scattering patterns.
Anal Methods
January 2025
Engineering Research Center of Intelligent Theranostics Technology and Instruments, Ministry of Education, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, 211166, China.
The presented research introduces a new method to identify drug-resistant bacteria rapidly with high accuracy using artificial intelligence combined with Multi-angle Dynamic Light Scattering (MDLS) signals and Raman scattering signals. The main research focus is to distinguish methicillin-resistant (MRSA) and methicillin-sensitive (MSSA). First, a microfluidic platform was developed embedded with optical fibers to acquire the MDLS signals of bacteria and Raman scattering signals obtained by using a Raman spectrometer.
View Article and Find Full Text PDFDigital recombinase polymerase amplification chip based on asymmetric contact angle composite interface.
Anal Chim Acta
February 2025
Institute of Microfluidic Chip Development in Biomedical Engineering, College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China. Electronic address:
Background: Digital recombinase polymerase amplification (dRPA) is an effective tool for the absolute quantification of nucleic acids and the detection of rare mutations. Due to the high viscosity or other physical properties of the reagent, this can compromise the accuracy and reproducibility of detection results, which limits the broader adoption and practical application of this technology. In this study, we developed an asymmetric contact angle digital isothermal detection (ACA-DID) chip and optimized the ACA-DID chip structure to achieve rapid digital recombinase polymerase amplification.
View Article and Find Full Text PDFFiber-Optic Photoacoustic Gas Microprobe Based on Linear Spot-Type Multipass Cell.
Anal Chem
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School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian, Liaoning 116024, China.
A linear spot-type multipass cell-enhanced fiber-optic photoacoustic gas microprobe is proposed. To further reduce the volume of the gas chamber and enhance the photoacoustic signal, we designed the cross section of the photoacoustic tube as a slit with a height of 10 mm and a width of 1.5 mm.
View Article and Find Full Text PDFIntroduction of curvature index and improvement of calibration curves used in ion chromatography (IC), atomic absorption spectrometry (AAS), UV-vis spectrophotometry and catalytic combustion.
Anal Chim Acta
January 2025
Wastewater Laboratory Targoviste, Water Company Targoviste-Dambovita, Calea Ploiesti Street, 130 145, Targoviste, Romania. Electronic address:
Background: The calibration curve represents the relationship between known CRM and the response of the instrument (e.g absorbance). Most of the time, in analytical chemistry standards, the linear function (of the 1st degree) is used to characterize the calibration curves.
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