|
Diagnostic Ultrasound is the use of high-frequency sound
waves to study the anatomy and function of the body. The
sound waves can be used to produce images of various organs,
to observe motion within organs, or to measure the flow
of blood using a specialized method called Doppler Ultrasound.
A small, hand-held device, called a transducer, is used
to send sound waves into the body, and to receive returning
signals. The information returning to the transducer is
sent to a computer, which reconstructs cross-sectional images
of the body – similar in concept to sonar or radar.
Because Ultrasound is non-invasive, painless, and does not
use ionizing radiation, it is an extremely valuable way
to evaluate many parts of the body – including the
pregnant uterus, pelvic organs, kidneys, gallbladder, liver,
thyroid, breasts and testicles. Doppler Ultrasound is used
to evaluate the heart, as well as blood vessels such as
the carotid arteries and veins of the legs.
There are different preparations for different kinds of
exams.
Start drinking five (5) 8oz.glasses of non-carbonated
water or clear liquid 1 ½ hours before your appointment.
(Finish drinking within one hour.) Do not empty your bladder
until the exam is completed.
No solid foods for eight (8) hours prior
to your exam. You may have clear, non-carbonated liquids
(including jello) and you may take your usual medications.
The exam is performed by a specially trained Ultrasonographer. Most ultrasound exams (of the kidney, bladder, pelvis, fetus, abdomen and liver) require patient preparation, including drinking water prior to the exam. Allow 30 to 60 minutes for the appointment depending on the specific exam. The exam room is usually darkened to improve the visibility of the video monitor.
The procedure is painless. You will lie on a comfortable
exam table, while the sonographer moves a transducer over
your skin. A gel-like substance is applied to the skin,
to allow the sound waves to pass through more easily. For
some exams of the female pelvis it may be necessary to place
a transducer into the vagina, but this is not uncomfortable
for most women.
A full bladder acts as a “window” in an otherwise
solid “wall,” the abdomen/pelvis. This enables
us to look through the window to what lies behind it, including
the uterus and ovaries
Depending on whether you hold an allied health credential
(rad.tech, registered nurse, etc.), or if you have a bachelor’s
degree in science, you would study an additional one to
four years. You would then qualify to take the board exams
given by the American Registry of diagnostic Sonographers
to earn your credential in one of three specialties—RDMS,
RDCS, or RVT.
Echocardiography is an Ultrasound exam of the heart which identifies abnormalities of the heart muscle, valves, and fluid around the heart.
A handheld transducer or probe (which
looks like a microphone) is pressed against the chest wall
in different positions. The transducer/probe generates harmless
sound waves that produce a moving picture of the heart.
The images are recorded on videotape and are later reviewed
and evaluated by a cardiologist.
The procedure takes about 30-45
minutes and is performed by one of our experienced staff
specially trained as an Ultrasonographer. The exam room
is usually darkened to improve the visibility of the video
monitor. Three electrodes will be applied to the patient’s
chest. A small amount of gel will also be applied to the
chest to improve the transmission of the sound waves.
The appointment time is approximately 1 hour. The exam room is usually darkened to improve the visibility of the video monitor. Three electrodes will be applied to the patient’s chest. A small amount of gel will also be applied to the chest to improve the transmission of the sound waves.
In most cases, reports are provided within two business
days.
| |
Left
internal carotid artery shows normal blood flow.. |
Right
internal carotid artery shows abnormal blood
flow |
|
 |
THYROID
ULTRASOUND performed on patient who presented
with difficulty swallowing shows multiple solid
nodules
|
|
 |
This
50 year old female came in for a routine screening
mammography with no palpable abnormalities.
The mammogram was suspicious and an ultrasound
was recommended. This ultrasound showed a malignan
|
|
 |
| PREGNANCY
ULTRASOUND - Profile of the face of a 20 week
old fetus. |
|
|