Assessment of inspiration and expiration time using infrared thermal imaging modality

Shakhih, Muhammad Faiz Md; Wahab, Asnida Abdul; Salim, Maheza Irna Mohamad

doi:10.1016/j.infrared.2019.04.012

Cited by 13 publications

(9 citation statements)

References 26 publications

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“…Respiratory rate seems to be one the most attractive parameters using the non-contact methods and has been addressed in a variety of conferences and journal papers divided as follows: [ 19 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 ] (over the period 2010–2015), [ 9 , 11 , 12 , 29 , 32 , 42 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 53 , 55 , 61 , 69 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 ,…”

Section: Resultsmentioning

confidence: 99%

“…Monitoring of pulmonary function such as tidal volume, minute ventilation, forced vital capacity, and forced expiratory volume has been studied in many works as well in [ 65 , 116 , 117 , 118 , 119 , 120 ] (2010–2015), [ 6 , 7 , 8 , 9 , 32 , 46 , 52 , 88 , 91 , 92 , 100 , 103 , 110 , 121 , 122 , 123 , 124 ] (2016–2020).…”

Section: Resultsmentioning

confidence: 99%

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Advancements in Methods and Camera-Based Sensors for the Quantification of Respiration

Rehouma

Noumeir

Essouri

et al. 2020

Sensors

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Assessment of respiratory function allows early detection of potential disorders in the respiratory system and provides useful information for medical management. There is a wide range of applications for breathing assessment, from measurement systems in a clinical environment to applications involving athletes. Many studies on pulmonary function testing systems and breath monitoring have been conducted over the past few decades, and their results have the potential to broadly impact clinical practice. However, most of these works require physical contact with the patient to produce accurate and reliable measures of the respiratory function. There is still a significant shortcoming of non-contact measuring systems in their ability to fit into the clinical environment. The purpose of this paper is to provide a review of the current advances and systems in respiratory function assessment, particularly camera-based systems. A classification of the applicable research works is presented according to their techniques and recorded/quantified respiration parameters. In addition, the current solutions are discussed with regards to their direct applicability in different settings, such as clinical or home settings, highlighting their specific strengths and limitations in the different environments.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Advancements in Methods and Camera-Based Sensors for the Quantification of Respiration

Rehouma

Noumeir

Essouri

et al. 2020

Sensors

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“…Thermal imaging has been used in the past to monitor respiration at the nose. 11,12 We hypothesized that this noninvasive thermal imaging modality would similarly record inspiratory to expiratory temperature changes at the nostril and could serve as a surrogate for distinguishing between very low NOSE scores (little anatomic pathology) and very high NOSE scores (severe anatomic obstruction).…”

Section: Discussionmentioning

confidence: 99%

“…Heeding the limitations that a mucosal temperature probe might interfere with nasal airflow and confound ΔT, we aimed to employ an inexpensive phone‐connected thermal imaging device and associated digital application to record ΔT as a nostril base‐view video and photograph. Thermal imaging has been used in the past to monitor respiration at the nose 11,12 . We hypothesized that this noninvasive thermal imaging modality would similarly record inspiratory to expiratory temperature changes at the nostril and could serve as a surrogate for distinguishing between very low NOSE scores (little anatomic pathology) and very high NOSE scores (severe anatomic obstruction).…”

mentioning

confidence: 99%

The Use of Infrared Thermal Imaging to Determine Functional Nasal Adequacy: A Pilot Study

Jiang¹,

Chan

Stupak

2021

OTO Open

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Objective The goal of this study was to establish a numeric threshold to separate functional from substantially obstructed noses using comparisons of thermal imaging and subjective scores. Study Design An inexpensive smartphone application and hardware attachment that uses infrared thermal imaging was tested to differentiate between substantial nasal blockage from an adequately functioning nose. Setting Sequential adult participants who presented to a public hospital otolaryngology clinic between June and August 2018 were asked to complete the Nasal Obstruction Symptom Evaluation (NOSE) tool. Methods A thermal video imaging device was used to record the difference in temperature (ΔT) between inspired (I) and expired (E) air at each nostril. The nostril ΔT between I and E air of patients with severe obstruction by the subjective measure (NOSE score) was compared with that of patients with minimal symptoms. Results A total of 26 participants were enrolled in the study. During normal respiration, Total ΔT for the nonobstructed group had a mean of 9.0, whereas the Total ΔT for the obstructed group had a mean of 7.69, a 17% difference that was statistically significant at P = .045. For the worst-performing nostril tested, ΔT for the nonobstructed group had a mean/median of 4°C, while the obstructed group had a mean of 3.23°C (median 3; 23.8% difference, P = .023). Conclusion Measures of thermal imaging, particularly at the threshold between the median scores of the worst-performing nostril, may be a useful clinical test to differentiate between a substantially obstructed nose from an adequately functioning nose, although more data are required.

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“…Shakhih et al [ 57 ] presented an approach to measure the time of the inspiration (TI) and expiration (TE) considering three different breathing patterns that were simultaneously captured by infrared thermal imaging (ITI) and respiratory inductive plethysmography (RIP). However, the method was highly susceptible to head movement and image processing was also not sufficient.…”

Section: Technology Used For Measuring Vital Signsmentioning

confidence: 99%

Noncontact Sensing of Contagion

Khanam

Chahl

Chahl³

et al. 2021

J. Imaging

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The World Health Organization (WHO) has declared COVID-19 a pandemic. We review and reduce the clinical literature on diagnosis of COVID-19 through symptoms that might be remotely detected as of early May 2020. Vital signs associated with respiratory distress and fever, coughing, and visible infections have been reported. Fever screening by temperature monitoring is currently popular. However, improved noncontact detection is sought. Vital signs including heart rate and respiratory rate are affected by the condition. Cough, fatigue, and visible infections are also reported as common symptoms. There are non-contact methods for measuring vital signs remotely that have been shown to have acceptable accuracy, reliability, and practicality in some settings. Each has its pros and cons and may perform well in some challenges but be inadequate in others. Our review shows that visible spectrum and thermal spectrum cameras offer the best options for truly noncontact sensing of those studied to date, thermal cameras due to their potential to measure all likely symptoms on a single camera, especially temperature, and video cameras due to their availability, cost, adaptability, and compatibility. Substantial supply chain disruptions during the pandemic and the widespread nature of the problem means that cost-effectiveness and availability are important considerations.

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Assessment of inspiration and expiration time using infrared thermal imaging modality

Cited by 13 publications

References 26 publications

Advancements in Methods and Camera-Based Sensors for the Quantification of Respiration

Advancements in Methods and Camera-Based Sensors for the Quantification of Respiration

The Use of Infrared Thermal Imaging to Determine Functional Nasal Adequacy: A Pilot Study

Noncontact Sensing of Contagion

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