Credit Valley Hospital Department

Diagnostic Imaging

 

 

 

Diagnostic Imaging

The Imaging Department at The Credit Valley Hospital is equipped with state-of-the-art technology which allows us to provide the best service possible to our community. Imaging services are provided on an inpatient, outpatient and emergency basis. Emergency coverage is offered 24 hours a day, seven days a week. All imaging examinations are performed digitally which allows the information to be stored by a computer system. These images can be transferred electronically to many areas of the hospital, to your doctor's office or other medical institutions. All electronic transfers are performed in accordance with the Health Records Confidentiality Policy and Procedure.
The Diagnostic Imaging Department performed over 205,000 examinations last year.

 


Vascular and Interventional Radiology

Angiography appointments are booked through your physician's office. Physician's offices can fax requisitions to 905-813-3956 to facilitate an appointment.
What is Vascular and Interventional Radiology?
The Angio Department performs a variety of therapeutic and diagnostic examinations including:

  • the study and treatment of blocked blood vessels
  • the insertion and maintenance of oncology and dialysis lines
  • PICC line insertions
  • skeletal and lung biopsies
  • pain localization and management

Who performs these exams?
These exams are performed by a highly skilled doctor (Interventional Radiologist) who is assisted by a team of trained Medical Radiation Technologists and nurses. Most exams are done on an outpatient (same day) basis, a few specific exams require the patient to be admitted to hospital over night
PICC Line Management (link to be added)

Outpatient Arteriogram (Angiogram) Prep
Outpatient Arteriorgram (angiogram)
(allow a minimum of 8 hours at the hospital for your appointment)

  • Prior to the procedure, your physician will instruct you regarding:
    • necessary blood work
    • anticoagulant medications (ie. Coumadin or ASA)
  • You may have a light breakfast (ie. Tea/coffee/juice/toast) before 6:00 a.m. on the morning of your procedure.
  • You will be at the hospital for approximately 8 hours and MUST be accompanied home by someone capable of driving you.
  • You MUST make arrangements to have someone stay with you overnight after your procedure.
  • You will likely be required to have bed rest for the rest of the day and evening after your procedure and limit your activities the following day.
  • Questions and concerns can be answered by your physician or the Imaging Department (905-813-2200 ext. 6255).
  • For further information on specific exams please visit www.sirweb.org and see Patients and Public Information

Bone Densitometry

A referral is required from your physician in order to book an appointment for a Bone Densitometry examination. An appointment can be made by calling the Imaging booking desk at 905-813-2731 for faxing your requisition to 905-813-4418. Please bring your requisition with you the day of your appointment.
What is Bone Mineral Densitometry?
Bone Mineral Densitometry is the diagnostic process by which a very low dose x-ray instrument measures the bone mineral content (BMC).
Why perform a Bone Density test?
The role of Bone Densitometry identifies those patients with or who potentially will have low bone mineral density (osteoporosis). Treatment can then occur which will aid in the prevention of fractures.


General Radiography

What is an X-Ray?
An x-ray uses radiation to detect abnormalities in all different parts of the body. Images are obtained electronically and viewed on computers.
Who performs an X-Ray?
A registered medical radiation technologist.
Who reads the X-Rays?
A Radiologist
Types of Appointments:


No Appointment Needed

Appointment Required

Chest

Barium Studies

All Skeletal Bones

IVP (Intravenous Pyelogram)

Abdomen

Cystograms

Pelvis

Arthograms

Skull

Scoliosis

For appointment bookings, call the Imaging booking desk at 905-813-2731 or fax your requisition to 905-813-4418. Please bring your requisition with you on the day of your booked appointment.

For test preparation, please click on the examination you are having done.

CVH Colon Preparation Diagnostic Imaging
Two days before examination:

  1. Eat light meals for breakfast and lunch. Drink extra water. Begin clear fluid diet at supper (6:00 p.m.) and continue during the evening – water, apple juice, white grape juice, clear energy drinks like Gatorade, black coffee or tea (no milk), pop or clear soup, plain jello. Avoid milk products or anything else that you can’t see through.
  2. At pharmacy or drugstore purchse one package of Pico-Salex laxative and also a small package of Dulcolax (bisacodyl) tablets, 5 mgm each. The Pico-Salex contains two sachets of powder inside. Please read enclosed package insert for preparation of the laxative or see below.

One day before examination:

  1. Drink plenty of clear fluids all day  water, apple juice, white grape juice, clear energy drinks like Gatorade, black coffee or tea (no milk), pop or clear soup, plain jello.  Avoid milk products or anything else that you can’t see through.
  2. At about 1:00 p.m. take 4 tablets of Dulcolax (bisacodyl). Drink lots of clear liquids.
  3. At about 4:00 p.m. take first packet of Pico-Salex (prepare as directed – see below).
  4. It is important to drink a large glass (250 ml/8 oz.) of water or clear liquid every hour while this medicine is working.
  5. At about 8:00 p.m. take the second packet of Pico-Salex (prepare as directed – see below)
  6. Continue to drink fluids until bedtime – one large glass (250 ml/8 oz.)of water or clear liquid every hour until bedtime.
  7. Day of the test have a small glass of water in the morning before the test.
  8. Note:  Continue to take medication prescribed by your doctor.If you have significant kidney or heart problems or other concerns, consult your doctor before taking the preparation.
  9. You will have a strong urge to have a bowel movement after the Pico-Salex so stay close to a toilet.
  10. Preparation of Pico-Salex:
    1. Empty the contents of the packet into a mug or coffee cup.
    2. Add 150 ml (5 oz.) of cold water
    3. Stir frequently for 2 – 3 minutes to dissolve all the laxative
    4. If the mixture heats up, let it cool before you drink it
    5. Continue to stir while it cools

empty the contents of the packet into a mug or coffee cup.
add 150 ml (5 oz.) of cold water
Cystogram
Please allow a minimum of 1 to 1 ½ hours for your appointment.
No preparation required.

Esophagus, Stomach & Duodenum G.I. Series
Please allow a minimum of 1 hour for your appointment.
DO NOT eat or drink after 10:00 p.m. the night before your examination.


IVP (Intravenous Pyelogram)

Please allow a minimum of 1 hour for your appointment.
Clear fluid breakfast if morning appointment. Regular breakfast and clear fluid lunch if afternoon appointment.

Small Bowel Follow Through
Please allow a minimum of 1-3 hours for your appointment.
DO NOT eat or drink after 10:00 p.m. the night before your examination.


C.T. (Computed Tomography)

A referral is required from your physician in order to book an appointment for a C.T. Scan. Physician's offices can fax requisition to 905-813-4172 to facilitate an appointment.
What is a C.T.?
A computed tomography (C.T.) scan is a relatively simple study that produces a series of images that can detect many conditions that are not detectable with conventional x-rays.
During the study a thin beam of radiation is focused on the specific body part to be studied. The x-ray tube moves completely around this body part as the table moves the patient through the scanner. This creates multiple cross sectional images which are sometimes compiled into 3D images when necessary. Due to the precision of these studies the patients must lie completely still. Some C.T. scans require the use of a contrast media in the form of a drink or an IV injection. The contrast media helps to outline blood vessels and organs so they can be easily seen.
Who performs a C.T. scan?
The scans are performed by Medical Radiation Technologists who have specialized training in C.T. scanning.

For test preparation, please click on the examination you are having done:


Head:
Please allow a minimum of 30 minutes for your appointment.
DO NOT drink for 2 hours prior.
Abdomin/Chest:
Please allow a minimum of 2 hours for your appointment.
DO NOT eat or drink for 2 hours prior.
Paediatric:
Please allow a minimum of 6 hours for your appointment if your child is being sedated.
Check with your Paediatrician/Family Doctor for specific instructions.


Mammography

A referral is required from your physician in order to book an appointment for a mammogram. An appointment can be made by calling the Imaging booking desk at 905-813-2731 or faxing your requisition to 905-813-4418. Please bring your requisition with you the day of your appointment. If you have had a previous mammogram at another facility, please bring the films with you to your appointment. The Credit Valley Hospital provides the Ontario Breast Screening Program (OBSP).

Women Eligible for Screening in the OBSP:
• Ontario residents
• 50 years of age and over
• No acute breast symptoms
• No personal history of breast cancer
• No breast implants

Please note: for patients who have had a previous mammogram through their family physician or are already in the OBSP program, it must have been at least 1 year since their last mammogram to qualify.

Do you provide Digital Mammography?
Yes, there are two digital mammography units at Diagnostic Imaging.

What is a Mammogram?
A mammogram is a radiograph (x-ray) of the breast. Most commonly done on females ages 40 and up, it is also occasionally necessary for males.

What is it for?
Mammograms are most commonly used as a screening device for early detection of breast disease. Patients who feel a lump in their breast or have an unusual discharge from their nipple should also be evaluated.
Many women have their first screening mammogram in their 40's. Mammograms are recommended once every two years over the age of 50. Some women may be asked to come back in one year instead of two.

How is it done?
A screening mammogram usually requires 4 pictures (2 pictures of each breast) taken in different directions. Because patients come in their own shape and size, extra pictures may be required.
The breast is pulled forward and compressed between the image receptor and a clear plastic compression paddle. When the breast is well compressed, the breast structures can be optimally visualized on the x-ray.
The goal of mammography is to visualize all the breast tissue to ensure the patient receives a thorough examination.

Mammogram Preparation
Please allow a minimum of 30 minutes for your appointment.
DO NOT use deodorant or talcum powder. Wear a 2 piece outfit.

Note:
Our hours have now been extended to 20:30 for mammography appointments Monday to Friday.

Nuclear Medicine

A referral is required from your physician in order to book an appointment for a Nuclear Medicine examination. An appointment can be made by calling the Imaging booking desk at 905-813-2731 or faxing your requisition to 905-813-4418. Please bring your requisition with you the day of your appointment.
If there is a chance that you may be pregnant or if you are breastfeeding, please inform the technologist and your physician prior to your test.
What is a Nuclear Medicine Study?
A Nuclear Medicine study consists of an injection of a radioactive drug which localizes in a particular organ system depending on the function of that organ system. Different radioactive drugs are used to image various organs.
Is it the same as an X-Ray?
Both Nuclear Medicine and Radiography use ionizing radiation. However, in Nuclear Medicine we use detectors called Gamma Cameras to look at the distribution of the radioactive drug in the body. The Gamma Camera does not emit radiation, it only detects it. The patient emits the radiation that is injected.
Who performs the Nuclear Medicine Procedure?
A registered Nuclear Medicine Technologist.
Which parts of the body can be imaged?
Nuclear Medicine is used to image:

  • the brain
  • kidneys
  • heart
  • gallbladder and biliary tree
  • lungs
  • thyroid gland

For test preparation, please click on the examination you are having done.


Bone Scan:
Please allow a minimum of 3 to 4 hours for your appointment.
No preparation required.
Biliary/Gallbladder Scan:
Please allow a minimum of 1 to 2 hours for your appointment.
Do NOT eat or drink 4 hours prior to the examination.
Thyroid Uptake:
Duration of test 15minutes on 2 consecutive days.
Do NOT eat or drink 4 hours prior to the examination on day 1.
No x-ray contrast media (dye) 4 weeks prior to your scan.
If on thyroid medication, please check with your physician whether you need to discontinue the medication prior to your test.
Parathyroid Scan:
Please allow a minimum of 3 hours for your appointment.
Do NOT eat or drink 4 hours prior to the examination.
Captopril Renal (Kidney) Scan for High Blood Pressure:
Please allow a minimum of 2 hours for your appointment.
Omit breakfast.
If you are taking blood pressure medication, check with your doctor whether you need to discontinue the medication prior to your test. Drink 4 glasses of water during the hour prior to your test. Urinate as needed.
Take a list of the medications that you are currently taking to your test.
Renal (Kidney) Scan: Routine/Diuretic:
Please allow a minimum of 45 minutes for your appointment.
Drink 4 glasses of water during the 1 hour prior to your test.
Urinate as needed.
Lasix Renal Scan:
Please allow 1-2 hours for your appointment. Drink 4 glasses of water during the hour prior to your test. Urinate as needed.
Pediatric Lasix Renal Scan:
Please allow 4 -5 hours for your appointment. All preparation will occur in hospital.
Gallium Scan:
The scan is performed 48 to 72 hours after the gallium injection.
No preparation is necessary prior to the gallium injection.
An abdominal prep may be necessary after the gallium injection. The technologist will inform the patient at the time of the injection. The actual scanning procedure takes about ½ hr - 1½ hours.
Voiding Cystogram:
Please allow a minimum of 1 hour for your appointment.
No preparation required.

Ventilation and Perfusion Lung Scan:
Please allow a minimum of 1 hour for your appointment.
No preparation required.
Whole Body I-131 Scan:
The Scan is performed 2 to 7 days after ingesting the I-131 capsule.
After receiving the I-131 capsule, drink 4 to 8 glasses of water every day.
Eat a high fiber diet. Take a laxative the day before your scan. The actual scanning procedure takes about 1 hour.
Salivary Gland Scan:
Please allow a minimum of 1 hour for your appointment.
Do NOT eat or drink for 4 hours prior to the test.
HMPAO Brain Scan:
Please allow a minimum of 2 hours for your appointment.
No preparation required.
Gastric Emptying Time:
Please allow a minimum of 2 hours for your appointment.
Do NOT eat for 8 hours prior to the test. The patient must not be allergic to egg.
Meckels Diverticulum Scan:
Please allow a minimum of 2 hours for your appointment.
The patient must be fasting for 8 hours prior to the test, 4 hours if it is an infant.
No laxatives or aspirin for at least 5 days prior to the scan.
No x-ray barium studies for at least 48 hours prior to the scan. Premedication with oral Zantac will be arranged by your physician.
Liver and Spleen Scan:
Please allow a minimum of 45 minutes for your appointment.
No x-ray barium studies within 3 days prior to scan.
Hemangioma Scan (RBC Liver Scan):
Please allow a minimum of 3 ½ hours for your appointment.
No x-ray barium studies within the 3 days prior to the scan.
Gallbladder Scan (Biliary Scan):
Please allow a minimum of 1 hour and 15 minutes for your appointment. A delayed image 4 hours after your injection, may be necessary.
Do NOT have anything to eat or drink for at least 2 hours and not more than 12 hours prior to the scan.
Gallbladder Scan with Ejection Fraction:
Please allow 1hour 45 minutes for your appointment. Do NOT have anything to eat or drink for at least 2 hours and not more than 12 hours prior to the scan. An abdominal ultrasound report must accompany your requisition.
DMSA Renal Scan:
Please allow a minimum of 4 hours for your appointment.
Drink 4 glasses of water over the hour prior to the test. Urinate as needed.
It is important to be well hydrated for this study.
Labeled White Blood Cell Study:
A blood sample is drawn early in the day (0800 – 0845). The patient returns 3 – 4 hours later for the injection of labeled white blood cells. Images may be taken 1 hr., 3-4 hours, and 24 hours later.
The timing of images will vary depending on the patient history.
No preparation is necessary.


Ultrasound

  • There is no known harmful effect to adult, child or fetus.
  • No x-rays are used.
  • Examination time usually varies from 30 to 60 minutes.

A referral is required from your physician in order to book an appointment for an Ultrasound. An appointment can be made by calling the Imaging booking desk at 905-813-2731or faxing your requisition to 905-813-4418.
Please bring your requisition with you to day of your appointment.
What is an Ultrasound study?
Ultrasound uses high frequency sound waves that bounce off internal tissues and produce echoes. These echo patterns are shown on the screen of the ultrasound machine forming a picture of the body tissue being examined.
Is it the same as an x-ray?
No. Ultrasound does not use ionizing radiation.
Who performs your ultrasound?
An A.R.D.M.S. registered medical sonographer.
Which parts of the body can be imaged using Ultrasound?

ABDOMEN
* liver * gallbladder * kidneys * pancreas * spleen * major blood vessels
PELVIC
* reproductive organs * appendix * bladder

OBSTETRICS
* pregnancies – 1st trimester to term * nuchal translucency (11 – 14 weeks) * pre amnio * detailed 18 – 20 week study * biophysical profile * fetal growth * cord doppler studies
SUPERFICIAL STRUCTURES
* thyroid * breast * scrotum
EXTREMITIES -MUSCULOSKELETAL (tendons and muscles)
* shoulder * elbow * knee * ankle
 ULTRASOUND GUIDED BIOPSIES
* liver * kidney * abdominal mass * thyroid * breast

For test preparation, please click on the examination you are having done.
General Abdomen (Gallbladder, Liver, Pancreas, Spleen, Kidney and Aorta)
Kidneys and Bladder only
Obstetrical and Pelvis
Thyroid, Neck, Testicles, Extremities

General Abdomen (Gallbladder, Liver, Pancreas, Spleen, Kidney and Aorta)
Adults:
Please allow a minimum of 45 minutes for your appointment.
DO NOT eat or drink anything for 12 hours before your appointment.
Avoid gas producing foods such as beans and carbonated beverages for 24 hours before your examination.
There will be less gas if you refrain from smoking and chewing gum for 12 hours.
Patients on medication may take it with a small amount of water.
Insulin dependant diabetics should take their insulin with dry toast and juice the morning of their examination.
Children 12 years and under:
DO NOT eat or drink for 4 hours prior to the examination time.
Infants:
STOP FEEDING 2 hours prior to examination time.

Kidneys and Bladder Only
Please allow a minimum of 30minutes for your appointment.
Your bladder should be full.
Please do not empty your bladder for 3 hours prior to your appointment time. You do not need to drink extra water and you may eat.

Obstetrical and Pelvis
Please allow a minimum of 1 hour for your appointment.’
Your bladder must be full. Please finish drinking 3 – 4 large glasses of water or clear fluids 1 hour before your appointment time to allow time for your bladder to fill.
YOU MAY EAT.

Thyroid, Neck, Testicles, Extremities
Please allow a minimum of 30 minutes for your appointment.
No preparation necessary.
For information about Ultrasound Guided Biopsy, please see Ultrasound Guided Biopsy page.

 



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