Scientific research support that specific telethermographic systems also called thermal imaging systems, may be utilized to quantify surface skin temperature. These systems incorporate an infrared camera and may have a temperature reference resource. In this document, they are known as thermal imaging methods. Thermal imaging cameras have been a top choice in this. They can be utilized to detect who has a fever and has to be sent to quarantine.

Thermal Imaging Systems and COVID-19

  • When appropriately used, thermal imaging systems generally have been shown to accurately measure someone’s surface skin temperature without being physically close to the person being assessed. Thermal imaging techniques provide certain benefits because other methods need closer proximity or contact to measure temperature (non-contact infrared thermometers or oral thermometers).
  • Temperature-based screening, like thermal imaging, isn’t capable of discovering if someone definitively has COVID-19 since, among other items, an individual with COVID-19 might not have a fever. A diagnostic test has to be performed to determine if someone has COVID-19.
  • Thermal imaging systems have never been demonstrated to be accurate when used to select the temperature of multiple individuals at precisely the same time. The accuracy of the systems depends on careful setup and functionality and the proper preparation of this person being appraised.
  • Several countries have used thermal imaging systems during epidemics, even though data about their effectiveness as part of efforts to decrease the spread of disorder has been mixed.
  • The FDA issued the Enforcement Policy for telethermographic. Systems Through the Coronavirus Disease 2019 (COVID-19) Public Health Emergency advice to help extend the availability of thermal imaging systems and mitigate thermometer shortages during the public health emergency. The guidance sets forth an enforcement policy that’s meant to apply to all thermal imaging systems that are meant for medical purposes for the duration of the public health emergency related to COVID-19, also provides recommendations concerning the performance and labeling of such systems.

Thermal scanning camara

Benefits of Thermal Imaging Systems

  • The man or woman who handles the thermal imaging process is not required to be physically close to the person being evaluated. Actually, the person who manages the thermal imaging method could be in a different place or area.
  • The thermal imaging method can measure surface skin temperature quicker than the typical eyebrow or oral (mouth) thermometer that requires a close space or physical contact with the individual being appraised.
  • Scientific studies reveal that, when used correctly, thermal Imaging systems generally measure surface skin temperature accurately.

Limitations of Thermal Imaging Systems

Though these systems may be in use for initial temperature evaluation to triage individuals in high throughput regions (such as airports, businesses, and athletic events), the programs have never been shown to be more effective when used to take the temperature of numerous individuals at the same moment. Which should not utilize them for “mass temperature screening.”

These systems quantify surface temperature, which is usually lower than the average temperature measured, adjusting thermal imaging systems properly to fix this difference in dimensions.

These systems Operate effectively only when all the following are true:

  • The systems are used in the right environment or location.
  • The systems are set up and operated correctly.
  • The person being assessed is prepared according to instructions.
  • The person handling the thermal imaging system is properly trained.
  • Proper Use of Thermal Imaging Systems

The person who manages the system should follow all manufacturer instructions to ensure the system is installed properly and found where it can quantify surface skin temperature correctly.

For information, see the standards and scientific papers listed under References below.

Thermal Scanning at Supershop

Preparing the area where you will use a thermal imaging system

  • Eliminate reflective backgrounds (such as mirrors, metallic, glass surfaces) to minimize reflected infrared radiation.
  • Eliminate Avoid strong lighting (such as incandescent, halogen, and quartz tungsten halogen light bulbs).
  • Should use a room with no movement of air, out of direct sunlight and away from radiant heat
  • Room temperature must be 68-76 °F (20-24 °C) and relative humidity 10-50 percent.

Preparing the Thermal Imaging System
Some systems require using a calibrated blackbody (an instrument for assessing an infrared heat detector ) through evaluation to be specific measurements are precise. Check the manufacturer’s directions to learn whether a calibrated blackbody is necessary. Some devices don’t need you.

Preparing the Person Being Evaluated – The person handling the system should make sure the person being evaluated:

  • Doesn’t any face obstructions before measurement, like a hat, scarf, glasses, or face shield. Who should pull the person’s hair away from their face, and their face should be clean and sterile. During the COVID-19 public health emergency, the FDA believes that the benefits of wearing a mask over the nose and mouth while using thermal imaging systems outweigh any potential risk of wrong measurements.
  • It doesn’t have a higher or lower Confront temperature from Wearing excessive clothes or head covers (by way of example, headbands, bandanas) or by utilizing facial cleansing products (such as cosmetic wipes).
  • Has waited at least 15 minutes in the measurement space or 30 minutes after exercising, strenuous physical activity, bathing, or using hot or cold compresses on the surface area.

Using the Thermal Imaging System

Measure one by one person’s surface skin temperature at a time.

Keep position the person at a fixed distance (follow the manufacturer’s instructions for use) from the thermal imaging system, directly facing the camera.

The image should include the person’s face. If an increased temperature is seen using the thermal imaging program, you need to use a different method to confirm a temperature. Public health officials can help you figure out whether the fever is an indication of disease.

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