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Temperature Measurement Sites

Temperature Measurement Sites

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...

Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...

Equipments Used to Measure Body Temperature

Equipments Used to Measure Body Temperature

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,...

Assessing Body Temperature - Temporal Artery

Assessing Body Temperature - Temporal Artery

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 forehead...

Assessing Body Temperature - Tympanic membrane

Assessing Body Temperature - Tympanic membrane

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...

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Three-Dimensional Ultrasonic Needle Tip Tracking with a Fiber-Optic Ultrasound Receiver

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Zero-crossing tracking technique for noninvasive ultrasonic temperature estimation.

Kuen-Cheng Ju¹, Hao-Li Liu

¹Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan. kcju@isu.edu.tw

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine

|October 23, 2010

Summary

A new zero-crossing tracking (ZCT) technique offers efficient ultrasound temperature estimation. This method provides superior processing speed for monitoring temperature changes, making it a viable alternative for ultrasonic applications.

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Area of Science:

Medical Imaging
Biomedical Engineering
Acoustics

Background:

Ultrasound imaging relies on radio frequency (RF) echo analysis.
Temperature changes in tissue affect ultrasound speed and cause thermal expansion.
Accurate temperature monitoring is crucial for various medical applications.

Purpose of the Study:

To evaluate the feasibility of zero-crossing tracking (ZCT) for temperature estimation using ultrasound.
To compare the computational efficiency of ZCT with conventional cross-correlation (CCR) techniques.

Main Methods:

The ZCT technique tracks shifts in zero-crossing instants of ultrasound RF echoes.
Preheated and postheated A-lines were analyzed to detect local temperature-induced echo shifts.
Phantom experiments were conducted using a linear array probe and focused ultrasound heating.

Main Results:

Both ZCT and conventional cross-correlation (CCR) techniques provided similar temperature estimation results.
The ZCT technique demonstrated up to a 7-fold improvement in computational efficiency compared to CCR.
ZCT effectively processed RF echo data for temperature change monitoring.

Conclusions:

The ZCT technique is a feasible and computationally efficient method for ultrasonic temperature estimation.
ZCT offers superior processing speed, making it a promising alternative for real-time temperature monitoring.
This technique has potential applications in areas requiring precise thermal monitoring via ultrasound.