WHAT IS AN ANGIOGRAM?
An angiogram is an x-ray examination of your blood vessels
. A doctor specially trained in interventional radiology performs
this procedure. The doctor will insert a small tube (catheter)
into the blood vessel and then he/she will inject x-ray dye
(contrast) that allows visualization of the vessels. This
will then allow the doctor to determine how well the blood
moves through the vessels of your brain, lung, abdomen, arms
or legs.
WHY DO I NEED AN ANGIOGRAM?
You need an angiogram because your doctor suspects there is
abnormal blood flow in one or more of your vessels. By injecting
contrast through a catheter into your vessels and taking x-ray,
the radiologist can identify a problem and help your doctor
plan a treatment for you.
WHAT HAPPENS WHEN I GET TO THE X-RAY ROOM?
In the x-ray room you will see lots of special equipment.
The staff will position you on the x-ray table and begin to
prepare you for the procedure. This includes monitoring of
your heart and blood pressure. If you don't already have an
IV (intravenous line), the nurse will start one so that you
can receive fluids and medications during the procedure.
WHAT IS AN ANGIOGRAM LIKE?
An angiogram involves three major steps: 1) insertion of a
catheter (small tube) into your body, 2) taking x-ray pictures
while contrast (x-ray dye) is being injected into a vessel,
and 3) removal of the catheter.
Catheter insertion: The staff will clean your skin with antiseptic
soap where the doctor will place the catheter. This is usually
at the top of the leg (groin) or the upper arm. You will then
be covered with a sterile sheet. Next, the doctor will use
a small needle to numb your skin where the catheter will be
inserted. The nurse will give you medications in your IV to
keep you comfortable and allow you to relax. You may feel
pressure or brief discomfort as the catheter goes in. The
doctor will guide the catheter through the body to the vessel
that is to be studied by watching it on a TV-like monitor.
You will not feel the catheter moving through your blood vessels.
Taking x-ray pictures: Once the catheter is in the correct vessel,
contrast will be injected through the catheter while x-ray
pictures are being taken. Several series of contrast injections
and x-ray pictures may be needed to complete the examination.
Removal of the catheter: When the angiogram is completed, the doctor
will remove the catheter from your blood vessel. He/she will
apply pressure for 10-15 minutes over the catheter site to
prevent bleeding. A Band-Aid will be placed on the insertion
site. The angiogram usually takes one or more hours to complete.
The radiology staff will always be nearby to keep you comfortable
and answer any questions you may have.
HOW DO I GET READY FOR MY ANGIOGRAM?
If you are already a patient in the hospital your doctors
and nurses will give you instructions on how to get ready
for your angiogram. If you are not already a patient in the
hospital you will be admitted to the outpatient department
on the morning of your test. It is important that you do not
eat or drink anything after midnight before your exam. You
may have a small amount of water or another clear liquid with
any medications you need to take. Be sure to ask your doctor
if you have any questions about eating or drinking before
your exam.
Prior to your angiogram you will be visited by a doctor from the
Interventional Radiology Department who will explain the procedure
to you. At that time you should ask any questions you may
have about the angiogram. If you have any allergies or problems
with medications, or think you might be pregnant, you should
let the doctor know. If you are allergic to X-ray dye, iodine,
or shellfish, it is important to let your doctor know as soon
as possible. You will be asked to sign a special form giving
the doctor permission to perform the angiogram.
Everyone having an angiogram will have blood tests done prior to the
procedure. Your groin will also be shaved on one or both sides
where the doctor will insert the catheter. Sometimes the arm
may also be prepared in this way. You may be asked to remove
jewelry and dentures. You will be asked to put on a hospital
gown. It is a good idea to go to the bathroom before you leave
your room.
WHAT DO I DO AFTER MY ANGIOGRAM?
When you return to your room you will be asked to stay in
bed with your leg straight or your arm immobile for 6-8 hours.
If you have any swelling, tingling or pain, or feel something
wet at your puncture site, call the nurse for assistance.
A nurse or nursing assistant can help you with a bedpan or
urinal while you are on bedrest. You should be able to resume
your regular diet following the procedure. You are also encouraged
to drink plenty of fluids. The X-ray pictures will be studied
by the radiologist (doctor who specializes in reading and
interpreting X-rays) and a report will be sent to your doctor
who will discuss the results with you and answer your questions.