Assessment of Abdominal Skin Temperature Change in Premature Newborns with NEC Compared to Healthy Controls

Herry, Christophe L.; Frize, Monique; Bariciak, Erika

doi:10.1007/978-3-642-23508-5_51

Cited by 10 publications

(8 citation statements)

References 10 publications

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“…These applications have penetrated the industrial, military and consumer markets, indicating their diversity and the extensive marketing opportunities they present, ranging from examples in security, surveillance, and vehicle, pedestrian and wildlife monitoring systems [1,2,3,4,5,6]. Futhermore, these sensors have contributed significantly to thermography for medical applications, including inflammation detecting and classification of and detection of certain malignancies [7,8,9,10,11]. However, microbolometers are not only limited to thermal imaging, but have also been adopted as pressure sensors [12].…”

Section: Introductionmentioning

confidence: 99%

An analytic model employing an elliptical surface area to determine the gaseous thermal conductance of uncooled VOx microbolometers

Schoeman

Plessis

2016

Sensors and Actuators A: Physical

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This work presents a detailed overview of the analytic methods for calculating the beam and gaseous thermal conductance components associated with uncooled VO x microbolometers. The conventional method to calculate the gaseous component relies on the assumption that the entire plate is maintained at a uniform temperature, thus the surface area of the plate is used for the calculation. We have observed using an industry leading multiphysics simulator that this assumption is not strictly true for VO x microbolometers as the conduction pattern exhibits an elliptical shape. Based on this, we have developed and propose an analytic method that employs an elliptical surface area scaled appropriately with the device dimensions to obtain an estimate of the average temperature conduction pattern. Prototype devices were manufactured and experimentally characterised. The devices exhibit thermal conduction characteristics comparable to those in literature and industry, and we could achieve 0.5 µW/K under vacuum conditions and 15 µW/K at atmospheric pressure with a TCR of −1 %/K. However, both simulated and experimental result sets of the gaseous thermal conductance exhibit large deviations from the conventional analytic method, on average approximately 40 %. The proposed method reduces this average error significantly to less than 10 % when compared to the simulated results.

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Section: Introductionmentioning

confidence: 99%

An analytic model employing an elliptical surface area to determine the gaseous thermal conductance of uncooled VOx microbolometers

Schoeman

Plessis

2016

Sensors and Actuators A: Physical

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“…A sequence of thermal images of the abdomen were captured using a longwavelength IR camera (uncooled microbolometer focal plane array, 320 x 240 pixels, thermal and spatial sensitivity of 0.05°C (at 30°C) and 1.3 mrad, respectively) [84]. The recordings were then transferred to a laptop for further processing.…”

Section: Equipmentmentioning

confidence: 99%

“…In addition, the nurses assessed each baby's level of pain during the imaging procedure using the Premature Infant Pain Profile (PIPP) Score [84].…”

Section: Imaging Protocolmentioning

confidence: 99%

“…Recordings were thentransferred onto a laptop for analysis at a later time. Images were collected prior to the commencement of this thesis by Herry et al[84].…”

mentioning

confidence: 99%

“…[84] captured sequential infrared images for 60 seconds and assessed the abdominal cooling rate of infants. The difference in the average abdominal temperature over 60 seconds was small[84]. For this reason, it was decided that averaging of temperature over 20 frames would be sufficient for the analysis conducted in this study.…”

mentioning

confidence: 99%

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Identification of Thermal Abnormalities by Analysis of Abdominal Infrared Thermal Images of Neonatal Patients

Nur¹

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Necrotizing enterocolitis (NEC), is a devastating inflammatory disease of infants for which there is no cure and exact causes remain unknown. Diagnoses are limited to radiographic findings and in most institutions Modified Bell's Criteria is used, neither are capable of reliable early detection. In this thesis, a novel method of abdominal infrared thermal imaging is proposed that allows direct measurements of skin temperature, which are capable of unveiling thermal abnormalities that may indicate intestinal inflammation characteristic of NEC. Abdominal thermal symmetry analysis was performed, results obtained from the 20 normal and the 9 NEC affected infants were statistically compared. A higher degree of thermal asymmetry was seen with the NEC group in comparison to the Normal group, notably when image enhancement techniques were done. We are hopeful that this new non-contact, non-ionizing method may potentially offer an early diagnostic tool.

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Classification of neonatal diseases with limited thermal Image data

Ervural

Ceylan

2021

Multimed Tools Appl

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Assessment of Abdominal Skin Temperature Change in Premature Newborns with NEC Compared to Healthy Controls

Cited by 10 publications

References 10 publications

An analytic model employing an elliptical surface area to determine the gaseous thermal conductance of uncooled VOx microbolometers

An analytic model employing an elliptical surface area to determine the gaseous thermal conductance of uncooled VOx microbolometers

Identification of Thermal Abnormalities by Analysis of Abdominal Infrared Thermal Images of Neonatal Patients

Classification of neonatal diseases with limited thermal Image data

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