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The purpose of this article is to evaluate the role of quantitative margin features in the computer-aided diagnosis of malignant and benign solid breast masses using sonographic imaging. The tumour was seperated by the expert. Three contour features circurity (C), area ratio (A) and length width ratio (LWR) was caculated from the tumour contour. Then back-propagation (BP) neural network with contour features was used to classify tumors into benign and malignant. Results from 119 ultrasonic images have been applied in this experiment. BP neural network yielded the following results: 89.7% and 73.5% respectively. The methods applied in this paper are helpful to raise the correctance of breast cancer diagnosis.
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J Acoust Soc Am
September 2025
Department of Linguistics, University of Iowa, Iowa City, Iowa 52242, USA.
This study focuses on suprasegmental features and investigates how the use of a second tonal dialect influences the production of tones in the first dialect among bidialectal speakers of Chengdu Mandarin (CM) and Standard Mandarin (SM). Using a word-naming task, this study analyzed the acoustic differences between tones in SM and CM that share similar pitch contours and assessed the impact of SM use on CM tone production. How bidialectal listeners perceptually map SM tones onto CM categories was further evaluated using a dissimilarity rating task.
View Article and Find Full Text PDFMach Learn Health
December 2025
Medical Artificial Intelligence and Automation Laboratory, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America.
Online adaptive radiation therapy (ART) personalizes treatment plans by accounting for daily anatomical changes, requiring workflows distinct from conventional radiotherapy. Deep learning-based dose prediction models can enhance treatment planning efficiency by rapidly generating accuracy dose distributions, reducing manual trial-and-error and accelerating the overall workflow; however, most existing approaches overlook critical pre-treatment plan information-specifically, physician-defined clinical objectives tailored to individual patients. To address this limitation, we introduce the multi-headed U-Net (MHU-Net), a novel architecture that explicitly incorporates physician intent from pre-treatment plans to improve dose prediction accuracy in adaptive head and neck cancer treatments.
View Article and Find Full Text PDFAnal Methods
September 2025
Department of Forensic Chemistry, Criminal Investigation Police University of China, Shenyang 110035, China.
Printing paper represents one of the most prevalent forms of physical evidence in document forensics, where accurate brand and model identification provides critical investigative leads. To enable rapid, precise identification of commercial printing paper brands, we propose a novel method combining 3D fluorescence spectroscopy with an enhanced ResNet34 network. First, 3D fluorescence contour maps of diverse paper brands were acquired across excitation (280-420 nm) and emission (300-592 nm) wavelengths.
View Article and Find Full Text PDFJ Air Waste Manag Assoc
September 2025
Desert Research Institute, Reno, Nevada, USA.
SmokePath Explorer is a web-based decision-support tool for California, U.S.A.
View Article and Find Full Text PDFIEEE Trans Biomed Eng
September 2025
Objective: Accurate preoperative planning for dental implants, especially in edentulous or partially edentulous patients, relies on precise localization of radiographic templates that guide implant positioning. By wearing a patientspecific radiographic template, clinicians can better assess anatomical constraints and plan optimal implant paths. However, due to the low radiopacity of such templates, their spatial position is difficult to determine directly from cone-beam computed tomography (CBCT) scans.
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