ct scan

					                                    PATIENT INFORMATION: CT SCAN


WHAT IS A CT SCAN?
WHAT IS A CT SCAN?
Computerised Tomography (CT) is a scan performed using an x-ray machine, which linked to a computer. A
Computerised Tomography (CT) is a scan performed using an x-ray machine, which isis linked to a computer. A
CT scan enables us to take pictures in cross sections of your body. The machine contains aagantry and aatable.
CT scan enables us to take pictures in cross sections of your body. The machine contains gantry and table.
            looks like a square donut (a big hole in the middle of square block, not a tunnel), which holds the
The gantry looks like a square donut (a big hole in the middle of a a square block, not a tunnel), which holds the
       tube and detectors. Most areas of the can can be scanned, although most commonly the chest,
x-ray tube and detectors. Most areas of the bodybodybe scanned, although most commonly the chest,
abdomen, pelvis and brain. Bones and joints can also be demonstrated using this technique.

HOW IS A CT SCAN PERFORMED?
HOW IS A CT SCAN PERFORMED?
You will be asked to lie down on the CT table and the Technologist will position you, to ensure best quality
You will be asked to lie down on the CT table and the technologist will position you, to ensure thethe best quality
pictures are possible. You are always in Technologist’s full full view there is a microphone attached to the
pictures are possible. You are always in athe Technologist’s view andand there is a microphone attached to the
machine, so you are always able to communicate with them during the test. The scanner will rotate around your
machine, so you are always able to communicate with them during the test. The scanner will rotate around your
body to collect data. This data is then reconstructed into a cross sectional image using the computer. The table
body to collect data. This data is then reconstructed into a cross sectional image using the computer. The table
will move to take other image slices. Sometimes you will be asked hold your breath for a a few seconds. The
will move to take other image slices. Sometimes you will be asked toto hold your breath for few seconds. The
result of this scan enables us to look at your body similarly to a loaf of bread cut into slices. Although the CT
result of this scan enables us to look at your body similarly to a loaf of bread cut into slices. Although the CT
scanning itself will not take very long, most CT appointments may require you to attend for as long as 30 - 45
scanning itself will not take very long, most CT appointments may require you to attend for as long as 30 - 45
minutes.
minutes.
WHAT RISK IS INVOLVED WITH CT SCANNING?
WHAT RISK IS INVOLVED WITH CT SCANNING? CT scan is low because our modern equipment is very
The amount of radiation you will receive during a
advanced. Your referring Doctor understands a CT scan is low because our modern equipment is very ad-
The amount of radiation you will receive duringthat the benefits received by performing the study, outweigh the
radiation dose involved. It is important that the inform received by performing the study, out weigh the
vanced. Your referring Doctor understandsthat you benefits the Technologist if you are uncertain about your
radiation dose involved. It is important that you inform the Technologist if you are uncertain about your
pregnancy status.
pregnancy status.
WHAT PREPARATION IS NECESSARY FOR A CT SCAN?
WHAT PREPARATION IS NECESSARY FOR A CT SCAN?
We would like to know if you are a diabetic. Please notify CMMI staff at the time of booking to discuss
medication, fasting and you are a diabetic. Please notify CMMI staff at the time require fasting for 4
We would like to know ifappointment time requirements. Some CT examinationsof booking to discusshours prior
to the examination time. This will be discussed with you at the examinations require fasting for 4 hours also
medication, fasting and appointment time requirements. Some CTtime of booking. Some CT examinationsprior
require you to drink a contrast liquid to highlight the bowel. If required, this will Some discussed with you at
to the examination time. This will be discussed with you at the time of booking. also beCT examinations also the
time of you to drink a contrast will require an injection of a Contrast Agent which highlights structures within the
require booking. Some studies liquid to highlight the bowel. If required, this will also be discussed with you at the
body. The need for this will be decided on presentation a CMMI. If you suffer from any allergies please inform
time of booking. Some studies will require an injection of at Contrast Agent which highlights structures within the
body. The need for this will be decided on presentation at CMMI. If you suffer from any allergies please inform
the Technologist.
the Technologist.
WHAT ABOUT MY RESULTS?
When ABOUT MY RESULTS?
WHAT the examination is complete, the Radiologist will write a report on the findings of your examination for
your doctor. This report and your films Radiologist will write a report on the findings of your examination for
When the examination is complete, thewill be sent to your referring doctor with whom you will be able to discuss
the doctor. This doctor should films will be sent a few referring doctor with whom you will be able to discuss
yourresults. Your report and yourhave these within to your days. If your doctor requests, you may wait and take
your films with you. This normally takes about 60-90 minutes. The report will be forwarded to your and take
the results. Your doctor should have these within a few days. If your doctor requests, you may waitdoctor.
your films with you. This normally takes about 60-90 minutes. The report will be forwarded to your doctor.
     IT IS IMPORTANT THAT YOU BRING ANY PREVIOUS SCANS AND X-RAYS WITH YOU TO YOUR
IT IS IMPORTANT THAT YOU BRING ANY PREVIOUS X-RAYS OR SCANS WITH YOU TO YOUR
                                      APPOINTMENT.
APPOINTMENT




                          Central Melbourne Medical Imaging 55 Victoria Parade Fitzroy Vic 3065
                          Telephone 03 9473 1000 Facsimile 03 9473 1005 www.cmmi.svhm.org.au

				
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