Thermal Modalities II (Handout) Flashcards
a valuable
tool in the rehabilitation of many different injuries, primarily for the purpose of stimulating the repair of soft tissue injuries and
relieving pain.
Therapeutic Ultrasound
This houses the control panel with
buttons or switches that regulates the
following parameters: on/off; power; time of
application; duty cycle; continuous or pulsed
modes
The Generator
Is a thin synthetic ceramic, usually made of
lead zirconate or titanate.
The Crystal
Transfers the acoustic energy from the crystal
to the tissues where it causes the tissue to
vibrate.
The Soundhead
Houses the crystal and the soundhead, is the
device that facilitates application of the
ultrasound to patients.
The Applicator
Treatment Parameters
Mode
Frequency
Intensity
Treatment length
Treatment size area
ideal in treating superficial conditions such as plantar
fasciitis, Achilles tendinitis and epicondylitis
3 MHz
the sound energy remains constant throughout the treatment; that is, the ultrasound energy is produced 100% of
the time
continuous ultrasound
all therapeutic ultrasound devices can produce either continuous or pulsed ultrasound
Mode
energy is periodically interrupted with no ultrasound energy being produced during the off period
Pulsed Ultrasound
When a _________ enters the
tissues, some of it is absorbed superficially.
high ultrasound frequency (3MHz)
Therapeutic ultrasound has a frequency range of
0.75-3.0 MHz
is transmitted through more superficial tissues and
absorbed primarily in the deeper tissues at depths of 2-6cm
1 MHz
is most useful in patients with a high
percentage of cutaneous body fat, and whenever desired
effects are in the deeper structures such as the soleus,
piriformis and hip adductor muscles
1 MHz
Is the rate at which energy is being delivered per unit area.
Intensity
