MODALITIES Flashcards
SCAR TISSUE AND HIGH TEMPERATURE
SCAR HAS INADEQUATE VASCULAR SUPPLY. ELEVATION OF TEMP INCREASES THE TISSUE’S METABOLIC DEMAND CAN LEAD TO NECROSIS.
CONDUCTION
TRANSFER OF HEAT THROUGH DIRECT CONTACT
CONVECTION
TRANSFER OF HEAT BY FLUID CIRCULATION. EXAMPLES: FLUIDOTHERAPY, CONTRAST BATH, HYDROTHERAPY.
CONVERSION
HEAT TRANSFER THROUGH CONVERSION OF ELECTROMAGNETIC RADIATION INTO HEAT ENERGY. EXAMPLES: HEAT LAMPS, US, SWD, MICROWAVE DIATHERMY.
EXAMPLES OF DEEP HEAT
US TO 8CM, SWD TO 5CM, MICROWAVE DIATHERMY.
GREATES HEAT ABSORBTION AREA
BONE-MUSCLE SOFT TISSUE INTERFACE
NON THERMAL EFFECT OF US
ACOUSTIC CAVITATION
CONTRAINDICATIONS FOR US
NEAR PACEMAKER, NEAR TUMOR, GRAVID OR MENSTRUAL UTERUS, OPEN EPIPHYSIS, HIP OR KNEE PROSTHEES WITH METHY METHACRYLATE OR HIGH DENSITY POLYETHYLENE, ARTHROPLASTIES NEAR SPINAL CORD OR BRAIN, EYES, NEAR HEART
INDIRECT ULTRASOUND
FOR UNEVEN SURFACES AS HANDS AND FEET. APPLICATOR AND BODY PART IN A CONTAINER WITH DEGASSED WATER
FREQUENCY AND INTENSITY NORMAL RANGE
FREQUENCY: 0.8 TO 1.1MHz
INTENSITY: 0.5 TO 2.0 W/cm2
FOR TENDINITIS AND BURSITIS INTENSITY USED IS 1.2 TO 1.8W/cm2
SWD
MOST COMMON FREQUENCY USED
DEEP HEATING THROUGH CONVERSION OF RADIO WAVE ELECTROMEGNATIC ENRGY TO THERMAL ENERGY
FREQ: 27.12MHz
CAN BE USED IN PID AND PROSTATITIS
US
SOUNDWAVES CONVERTED INTO THERMAL OR NON THERMAL EFFECTS
INDUCTIVE COILED METHOD (SWD)
PRODUCES HIGH TEMPERATURE IN WATER-RICH TISSUE (SUPERFICIAL MUSCLE AND SKIN). INDICATED FOR SUPERFICIAL MUSCLE AND JOINT WITH MINIMAL SUPERFICIAL TISSUE)
CONDENSOR METHOD (SWD)
PRODUCES HIGH TEMPERATURE IN WATER-POOR TISSUE (FAT AND BONE). INDICATED FOR SUBCUTANEOUS ADIPOSE TISSUE, SUPERFICIAL MUSCLE AND DEEPER JOINTS)
MWD
FREQUENCY USED
CONVERSION OF MICROWAVE ELECTROMAGNETIC ENERGY INTO THERMAL ENERGY. LESS THAN 5CM DEEP.
ACCORDING TO CUCURULLO IS THE ONLY ONE INDICATED FOR HYPERTHERMIA IN CANCER PATIENTS AND HEMATOMA
FREQ: 915MHz AND 2,456MHz