Related Experiment Video
Updated: Sep 15, 2025
07:40
Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
7.8K
Validation of Automated Respiratory Event Scoring in Type 3 Home Sleep Apnea Testing.
Nanako Shiroshita1, Ryoko Obata1,2, Fusae Kawana1
1Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Nature and Science of Sleep
|July 17, 2025
Summary
Home sleep apnea tests (HSATs) using the Alice NightOne device showed accurate results. Automatic scoring with the advanced Somnolyzer system closely matched manual scoring for respiratory event indices (REIs).
Area of Science:
- Medical Devices
- Sleep Medicine
- Respiratory Physiology
Background:
- Home sleep apnea tests (HSATs) are crucial for diagnosing obstructive sleep apnea (OSA).
- The Alice NightOne polygraphy device is widely used for HSATs and includes automatic scoring software.
- Advanced algorithmic systems, such as Somnolyzer, may enhance the accuracy of automatic scoring.
Purpose of the Study:
- To evaluate the accuracy of automatic scoring for respiratory event indices (REIs) using the Alice NightOne device.
- To compare the performance of the default automatic scoring software with the Somnolyzer system against manual scoring.
Main Methods:
- Retrospective analysis of HSAT data from 20 patients using the Alice NightOne device.
- Three scoring methods were applied: manual scoring (mREI), default automatic scoring (aREI), and Somnolyzer automatic scoring (sREI).
- Correlation and agreement analyses were performed between the different scoring methods.
Main Results:
- All three methods yielded comparable mean REIs.
- Strong correlation was observed between default automatic scoring (aREI) and manual scoring (mREI) (coefficient=0.976, P<0.01).
- The Somnolyzer system (sREI) demonstrated a more prominent correlation and closer agreement with manual scoring (mREI) (coefficient=0.996, P<0.001).
Conclusions:
- Automatic scoring of REIs using the Alice NightOne polygraphy device demonstrates good accuracy when compared to manual scoring.
- The Somnolyzer algorithmic system provides more favorable correlation and agreement with manual scoring, suggesting improved accuracy for HSAT analysis.
More Related Videos
04:54Author Spotlight: IntelliSleepScorer — A High-Accuracy, Accessible GUI Software for Automated Sleep Stage Scoring in Mice and its Application in Psychiatric Research
Published on: November 8, 2024
661
09:54A Model to Simulate Clinically Relevant Hypoxia in Humans
Published on: December 22, 2016
9.0K
Related Concept Videos
01:21Sleep Apnea
224
Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
The condition is more prevalent among...
224
01:20Assessment of Ventilation I: Respiratory Rate
1.3K
Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
1.3K
01:29Assessment of Ventilation II: Respiratory Depth and Rhythm
1.8K
Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
1.8K
01:19Special considerations while measuring oxygen saturation
699
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
699
01:27Physical Assessment of the Respiratory Tract II: Inspection
409
Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
Chest Configuration
The chest configuration...
409
01:23Mechanical Ventilation III: Noninvasive Ventilation
227
Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation...
Noninvasive Positive-Pressure Ventilation...
227