TECAR therapy is often used in the rehabilitation of which type of patients?
Anonymous Quiz
9%
Patients with skin burns
8%
Patients with viral infections
83%
Post-surgical patients
Which the Effect on biological tissues :
Anonymous Quiz
13%
Increase blood flow
13%
Tissue regeneration
1%
Decrease pain
73%
All of above
What frequency range is generally used for therapeutic ultrasound?
Anonymous Quiz
15%
0.1 to 1 MHz
79%
0.7 to 3.3 MHz
3%
7 to 10 MHz
2%
4 to 6 MHz
What is the depth of soft tissue that therapeutic ultrasound aims to maximize energy absorption?
Anonymous Quiz
26%
1 to 2 cm
56%
2 to 5 cm
14%
5 to 8 cm
4%
8 to 10 cm
How does ultrasound intensity change as it travels through material?
Anonymous Quiz
12%
It increases
11%
It remains constant
77%
It decreases due to attenuation
What type of tissues have higher attenuation coefficients for ultrasound?
Anonymous Quiz
6%
Tissues with low collagen content
20%
Tissues with high water content
7%
Tissues with low density
66%
Tissues with high collagen content
What is the result of attenuation of ultrasound as it travels through the body?
Anonymous Quiz
25%
Increase in temperature
14%
Change in frequency
61%
Decrease in intensity
How are ultrasound waves affected as they enter the body?
Anonymous Quiz
87%
They are absorbed, reflected, and refracted
6%
They pass through without any change
8%
They decrease in frequency
❤1
What physiologic effects can ultrasound produce?
Anonymous Quiz
5%
Only non-thermal effects
92%
Both thermal and non-thermal effects
3%
No physiologic effects
What is the definition of ultrasound according to the image?
Anonymous Quiz
22%
Audible vibrations of high frequency
1%
Inaudible acoustic vibrations of low frequency
74%
Inaudible acoustic vibrations of high frequency
3%
Audible vibrations of low frequency
What is the approximate frequency range of sound that humans can hear?
Anonymous Quiz
3%
1 to 10 Hz
89%
16 to 20,000 Hz
9%
20,000 to 50,000 Hz
The more rigid and denser the materials, the more waves travel through them:
Anonymous Quiz
68%
Quickly
32%
Slowely
❤1
Which tissue has the lowest absorption and highest penetration values for ultrasound at 1 MHz?
Anonymous Quiz
40%
Fat
17%
Blood plasma
43%
Water
Which tissue shows the highest absorption and lowest penetration values for ultrasound at 1 MHz?
Anonymous Quiz
24%
Fat
18%
Water
58%
Peripheral nerve
How does ultrasound penetration relate to the absorption rate in tissues?
Anonymous Quiz
81%
Inversely proportional
9%
Directly proportional
9%
No relation
What is the Effective Radiating Area (ERA) in ultrasound therapy?
Anonymous Quiz
69%
The portion of the transducer surface that produces the sound wave
28%
The area covered by the ultrasound gel
3%
The depth of tissue penetration
👍1
Which factor primarily determines the ERA in ultrasound therapy?
Anonymous Quiz
11%
The shape of the transducer
63%
The size of the transducer surface
26%
The frequency of the ultrasound waves
What is the relationship between the Effective Radiating Area (ERA) and the area of the treatment head?
Anonymous Quiz
11%
ERA varies randomly with the treatment head size
16%
ERA is larger than the treatment head
14%
ERA is the same size as the treatment head
60%
ERA is smaller than the treatment head