Podcast
Questions and Answers
What is the role of the metal plate in a transducer?
What is the role of the metal plate in a transducer?
- To attach the crystal to the coaxial cable
- To convert mechanical energy to electrical energy (correct)
- To transmit high frequency AC
- To amplify the ultrasound waves
What type of wave does ultrasound travel as in bone?
What type of wave does ultrasound travel as in bone?
- Transverse wave (correct)
- Electromagnetic wave
- Mechanical wave
- Longitudinal wave
What happens to ultrasound waves as they travel through tissue?
What happens to ultrasound waves as they travel through tissue?
- They are scattered in all directions
- They are reflected and refracted (correct)
- They are absorbed and penetrate deeper
- They are amplified
What is the effect of increasing the frequency of ultrasound waves?
What is the effect of increasing the frequency of ultrasound waves?
What is the suitable frequency for treating deeper lesions (3-5cm)?
What is the suitable frequency for treating deeper lesions (3-5cm)?
What is the maximum intensity of ultrasound that can be used without causing tissue damage?
What is the maximum intensity of ultrasound that can be used without causing tissue damage?
What is the primary effect of continuous mode ultrasound treatment?
What is the primary effect of continuous mode ultrasound treatment?
What is the significance of the duty cycle in ultrasound treatment?
What is the significance of the duty cycle in ultrasound treatment?
How long does it take to achieve a 4°C increase in local temperature using 1MHz at 1.5W/cm2 ultrasound?
How long does it take to achieve a 4°C increase in local temperature using 1MHz at 1.5W/cm2 ultrasound?
What is the purpose of a conducting material in ultrasound treatment?
What is the purpose of a conducting material in ultrasound treatment?
What is the primary effect of a 1°C increase in temperature?
What is the primary effect of a 1°C increase in temperature?
What is the primary benefit of non-thermal effects in ultrasound therapy?
What is the primary benefit of non-thermal effects in ultrasound therapy?
What is the result of molecular agitation in ultrasound therapy?
What is the result of molecular agitation in ultrasound therapy?
What is the purpose of using a pulsed mode with a duty cycle of 20-25%?
What is the purpose of using a pulsed mode with a duty cycle of 20-25%?
What is the result of the longitudinal waves of the US beam on the tissue fluid?
What is the result of the longitudinal waves of the US beam on the tissue fluid?
What is the benefit of using intensities lower than 0.5 W/cm2 in continuous mode?
What is the benefit of using intensities lower than 0.5 W/cm2 in continuous mode?
What is the absorption rate of energy produced by 3 MHz ultrasound compared to 1 MHz ultrasound?
What is the absorption rate of energy produced by 3 MHz ultrasound compared to 1 MHz ultrasound?
What is the recommended treatment duration for ultrasound therapy?
What is the recommended treatment duration for ultrasound therapy?
What is the contraindication for ultrasound treatment over the spinal column or brain?
What is the contraindication for ultrasound treatment over the spinal column or brain?
In chronic conditions, how often should ultrasound treatment be applied?
In chronic conditions, how often should ultrasound treatment be applied?
What is the indication for ultrasound treatment in cases of non-septic periarthritis?
What is the indication for ultrasound treatment in cases of non-septic periarthritis?
What should be done if no improvement is noted after three or four ultrasound treatments?
What should be done if no improvement is noted after three or four ultrasound treatments?
What is the primary purpose of increasing the intensity by 50% during the immersion application procedure?
What is the primary purpose of increasing the intensity by 50% during the immersion application procedure?
What is the main function of the coupling medium in the balloon application procedure?
What is the main function of the coupling medium in the balloon application procedure?
What is the primary mechanism by which phonophoresis enhances the effects of topical drugs?
What is the primary mechanism by which phonophoresis enhances the effects of topical drugs?
During the immersion application procedure, what is the recommended distance between the ultrasound head and the skin surface?
During the immersion application procedure, what is the recommended distance between the ultrasound head and the skin surface?
What is the typical range of penetration for the intensity heat generated during the treatment?
What is the typical range of penetration for the intensity heat generated during the treatment?
What is the primary advantage of using the balloon application procedure over the immersion application procedure?
What is the primary advantage of using the balloon application procedure over the immersion application procedure?
