ECG Flashcards
utilizes ultrasound
to produce images of the heart and
vascular structures and to provide
information about the direction and
velocity of blood flow within these
structures.
Echocardiography
Echocardiography is
Cardiac ultrasound
An ultrasound test that checks
the structure and function of
your heart.
Echocardiogram
An echo can diagnose a range
of conditions including
cardiomyopathy and valve
disease
Echocardiogram
Ultrasound refers to sound waves with a frequency well beyond the range of human hearing.
Echocardiogram
Providers often combine echo
with _________________ and __________________to evaluate
blood flow across your heart’s
valves.
Doppler ultrasound and color
Doppler techniques
uses no radiation.
Echocardiography
This makes an echo different from other tests
like X-rays and CT scans that use small
amounts of radiation
Echocardiogram
There are 5 basic components of an ultrasound scanner that are required for
generation, display and storage of an ultrasound image.
Pulse generator
Transducer
Receiver
Display
Memory
applies high amplitude voltage to energize the crystals
Pulse generator
converts electrical energy to mechanical (ultrasound) energy
and vice versa
Transducer
detects and amplifies weak signals
Receiver
displays ultrasound signals in a variety of modes
Display
stores video display
Memory
IMPORTANCE ECHOCARDIOGRAM
• Assess the overall function of the heart.
• Determine the presence of many types of heart
diseases.
• Follow the progress of valve disease over time
• Evaluate the effectiveness of the medical or surgical
treatments
INDICATION ECHOCARDIOGRAM
• Changes in the heart size
• Pumping strength
• Damage to the heart muscle
• Valve problems
• Heart defects
RISK /
CONTRAINDICATIONS ECHOCARDIOGRAM
• No risks are involved in a standard transthoracic
echocardiogram
• In a transesophageal echocardiogram, the patient’s
throat may sore for a few hours after the procedure..
EXAMINATION PROTOCOL: Preparations
• No special preparations are necessary for a standard
transthoracic echocardiogram.
• In transesophageal echocardiogram, the patient will be
asked not to eat for several hours beforehand.
PROCEDURE Transthoracic Echocardiogram: The technician will attach _________________to the patient’s
body.
Sticky patches (electrodes)
PROCEDURE Transthoracic Echocardiogram: The technician will also apply a ______ to
the transducer that improves the
conduction of sound waves.
Gel
PROCEDURE Transthoracic Echocardiogram: The technician will move the
transducer _______ and _______over the
chest to record images of sound-
wave echoes from the heart.
back and forth
Provides a single line of information at a
higher frame rate than can be obtained
by two-dimensional echocardiography.
M mode echocardiography
This technique enhances accurate
determination of linear dimensions and
improves quantitation of chamber size
and wall thickness.
M mode echocardiography
It is useful for measuring or viewing
heart structures, such as the heart’s
pumping chambers, the size of the heart
itself, and the thickness of the heart
walls
M mode echocardiography