Question

The quick, portable procedure that calculates bone density by using sound waves to scan the heel, shin, and kneecap is known as:

A) dual energy X-ray absorptiometry.
B) single energy X-ray absorptiometry.
C) quantitative ultrasound technique.
D) peripheral ultrasound technique.

Answer 1

The procedure to calculate bone density using sound waves is the quantitative ultrasound technique, which is distinct from methods like DEXA that utilize low-dose X-rays.

Step-by-step explanation:

The quick, portable procedure that calculates bone density by using sound waves to scan the heel, shin, and kneecap is known as quantitative ultrasound technique. This technique utilizes the transmission of high-frequency sound waves into the body to generate an echo signal that reflects changes in bone density. Dense bones will reflect sound waves more strongly than softer bone matter, allowing the determination of bone density at various locations in the body.

In contrast, dual energy X-ray absorptiometry (DEXA) uses two low-dose X-ray beams to measure bone density and determine body composition, such as the fat content. While these X-ray-based methods provide detailed images and quantitative measures of bone density, the key advantage of the quantitative ultrasound technique is that it is quick, portable, and does not expose the individual to ionizing radiation.

Answer 2

The procedure that uses sound waves to calculate bone density at sites like the heel and shin is known as the quantitative ultrasound technique. It is a non-invasive method ideal for assessing bone health and osteoporosis risk. Option C) quantitative ultrasound technique is the correct answer.

Step-by-step explanation:

The quick, portable procedure that calculates bone density by using sound waves to scan the heel, shin, and kneecap is known as the quantitative ultrasound technique. This method differs from others such as dual energy X-ray absorptiometry (DEXA), which utilizes two low-dose X-ray beams to measure bone, lean tissue mass, and fat mass, and from computed tomography (CT) scans, which provide highly-detailed images through the use of X rays taken from multiple angles.

Quantitative ultrasound technique, on the other hand, exploits the reflection of high-frequency sound waves at sites where there is a high contrast in density, such as the interfaces between soft tissue and bone, to assess the density and quality of bone. This makes the quantitative ultrasound technique a valuable and non-invasive tool for evaluating bone health, particularly useful in assessing the risk of osteoporosis.