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Related Concept Videos

Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.7K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
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Temperature Measurement Sites01:14

Temperature Measurement Sites

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A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
3.2K
Thermosensation01:43

Thermosensation

33.7K
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
33.7K
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

1.1K
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.  
Step 3: Assess the patient's...
1.1K
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

1.1K
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
1.1K
Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

11.4K
Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
11.4K

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Single-pixel infrared imaging thermometry maps human inner canthi temperature.

Cheng Jiang1, Patrick Kilcullen1, Yingming Lai1

  • 1Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, Varennes, QC, Canada.

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We developed single-pixel infrared imaging thermometry (SPIRIT) for accurate inner canthi temperature mapping. This non-contact method achieves high resolution, aiding disease diagnostics and public health screening.

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Area of Science:

  • Biomedical Engineering
  • Medical Imaging
  • Infrared Thermometry

Background:

  • Accurate inner canthi temperature measurement is vital for disease diagnostics but challenging due to anatomical constraints.
  • Existing non-contact methods like camera thermography have limitations in efficiency and accuracy for this specific application.

Purpose of the Study:

  • To develop a novel, efficient, and accurate non-contact method for mapping human inner canthi temperature.
  • To address the limitations of current thermographic techniques for inner canthi screening.

Main Methods:

  • Development of single-pixel infrared imaging thermometry (SPIRIT).
  • Design of diagonally aggregated 2D transmissive encoding masks using cyclic S-matrix for compressed data acquisition.
  • Non-iterative reconstruction for high-quality image generation.

Main Results:

  • SPIRIT enables human inner canthi temperature mapping with a resolution of 0.3°C.
  • The system successfully revealed sub-degree temperature variations linked to daily activities and glasses-wearing.
  • Demonstrated feasibility of single-pixel imaging for precise human temperature mapping.

Conclusions:

  • SPIRIT offers a promising non-contact solution for accurate inner canthi thermometry.
  • This technology can enhance public health evaluation criteria, including febrile screening for diseases like COVID-19.
  • SPIRIT's high resolution and efficiency represent a significant advancement in medical imaging for diagnostics.