Automated grading system for quantifying KOH microscopic images in dermatophytosis.

Diagn Microbiol Infect Dis

Manipal School of Information Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India. Electronic address:

Published: January 2025

AI Article Synopsis

  • - The study focuses on creating an automated grading system to quantify fungal loads in microscopic images from skin scrapings of patients with dermatophytosis, which is a fungal infection of the skin
  • - A U-Net model was used to segment fungal filaments in the images, and expert manual grading was performed since there were no pre-established pixel count thresholds
  • - The automated system showed promising results with high accuracy (over 80% for most metrics) and a strong agreement with human grading, indicating it could be an effective and affordable method for assessing fungal loads.

Article Abstract

Concerning the progression of dermatophytosis and its prognosis, quantification studies play a significant role. Present work aims to develop an automated grading system for quantifying fungal loads in KOH microscopic images of skin scrapings collected from dermatophytosis patients. Fungal filaments in the images were segmented using a U-Net model to obtain the pixel counts. In the absence of any threshold value for pixel counts to grade these images as low, moderate, or high, experts were assigned the task of manual grading. Grades and corresponding pixel counts were subjected to statistical procedures involving cumulative receiver operating characteristic curve analysis for developing an automated grading system. The model's specificity, accuracy, precision, and sensitivity metrics crossed 92%, 86%, 82%, and 76%, respectively. 'Almost perfect agreement' with Fleiss kappa of 0.847 was obtained between automated and manual gradings. This pixel count-based grading of KOH images offers a novel, cost-effective solution for quantifying fungal load.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.diagmicrobio.2024.116565DOI Listing

Publication Analysis

Top Keywords

automated grading
12
grading system
12
pixel counts
12
system quantifying
8
koh microscopic
8
microscopic images
8
quantifying fungal
8
images
5
automated
4
quantifying koh
4

Similar Publications

Objective: Age-related hippocampal atrophy is associated with memory loss in older adults, and certain hippocampal subfields are more vulnerable to age-related atrophy than others. Cardiorespiratory fitness (CRF) may be an important protective factor for preserving hippocampal volume, but little is known about how CRF relates to the volume of specific hippocampal subfields, and whether associations between CRF and hippocampal subfield volumes are related to episodic memory performance. To address these gaps, the current study evaluates the associations among baseline CRF, hippocampal subfield volumes, and episodic memory performance in cognitively unimpaired older adults from the Investigating Gains in Neurocognition Trial of Exercise (IGNITE) (NCT02875301).

View Article and Find Full Text PDF

The aim of this study is to evaluate the effect of obesity on robotic-assisted radical prostatectomy (RARP) outcomes. This study included 120 obese patients [body mass index (BMI) ≥ 30 kg/m²] and 124 normal weight (BMI ≤ 25 kg/m²)] patients from a total of 750 patients who underwent RARP between January 2017 and March 2023. The perioperative and long-term oncological and functional outcomes were also analyzed.

View Article and Find Full Text PDF

Background: This study aimed to explore the feasibility and safety of using 5G communication technology for domestic surgical robots to perform ultra-remote hepatobiliary and pancreatic surgery.

Methods: A retrospective analysis was conducted on the clinical data of five cases of ultra-remote domestic robot-assisted laparoscopic hepatobiliary and pancreatic surgery completed at Sir Run Run Shaw Hospital, Zhejiang University School of Medicine (referred to as Hangzhou, Zhejiang) and Sir Run Run Shaw Hospital, Alaer Hospital, Zhejiang University School of Medicine (referred to as Alaer city, Xinjiang) from February to September 2023. The main system of the operating desk at Hangzhou, Zhejiang, uses 5G network signal transmission to remotely control the bedside operating system at Alaer City, Xinjiang.

View Article and Find Full Text PDF

Background: Robotic surgery may have shown advantages over conventional laparoscopic surgery, but the da Vinci SP system, which utilizes a single incision, has had limited use in gastric cancer surgery. This study aims to evaluate the short-term outcomes of a novel hybrid technique, minimally invasive laparoscopic and robotic surgery (MILAR), with the da Vinci SP system for gastric cancer.

Materials And Methods: This retrospective study reviewed 23 consecutive patients who underwent gastrectomy for gastric cancer using the MILAR technique with the da Vinci SP system between May and October 2024.

View Article and Find Full Text PDF

Cross-device and test-retest reliability of speech acoustic measurements derived from consumer-grade mobile recording devices.

Behav Res Methods

December 2024

Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.

In recent years, there has been growing interest in remote speech assessment through automated speech acoustic analysis. While the reliability of widely used features has been validated in professional recording settings, it remains unclear how the heterogeneity of consumer-grade recording devices, commonly used in nonclinical settings, impacts the reliability of these measurements. To address this issue, we systematically investigated the cross-device and test-retest reliability of classical speech acoustic measurements in a sample of healthy Chinese adults using consumer-grade equipment across three popular speech tasks: sustained phonation (SP), diadochokinesis (DDK), and picture description (PicD).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!