Doppler Ultrasound

A Doppler ultrasound is a noninvasive test that can be used to estimate the blood flow through your blood vessels by bouncing high-frequency sound waves (ultrasound) off circulating red blood cells.

CT Angiogram

CT Angiography is a safe outpatient procedure that uses specially designed x-rays and intravenous contrast to see the detailed anatomy of the blood vessels throughout the body. It is most frequently utilized in the evaluation of arteries in the head, neck, chest, abdomen and legs. Coronary CT angiography refers to the scanning procedure of the arteries of the heart i.e. those involved in ischaemic heart disease like heart attacks.

You need only to fast for about 4 hours before the scan. Please refrain from caffeinated drinks e.g. coffee or tea on the day of examination.


Although the actual heart scanning takes only 5-8 seconds, the whole scanning procedure may take about 15-20 minutes from preparation to completion. You would be able to leave immediately after the procedure and would be able to resume with normal activities.

MR Angiography

Magnetic resonance angiography (MRA) is a non-invasive medical imaging test that uses a magnetic field and radio waves frequency to produce detailed images of the major arteries within the body, such as : brain, heart & other body parts. MR angiography does not use ionizing radiation (x-rays). MRA may be performed with or without contrast material.

  • You will be asked to wear a gown during the examination.
  • Jewelry, metal accessories, dentures and electronic objects should be removed prior to the MRI scan because they interfere with the magnetic field of the MRI machine whilewatches, credit cards and hearing aids can be damaged.
  • An MRI examination is safe for patients with metal implants, but generally excluded for those with implanteddefibrillator or pacemaker, cochlear (ear) implant, brain aneurysms clips, or metal coils placed within blood vessels.
  • Our physician will pre-consult and take your history to ensure your suitability for an MRI examination. Please kindly consult with the physician any doubt that you have. 
  • Some MRI examinations may require you to receive an injection of contrast material. The contrast material commonly used for an MRI examination does not contain iodine and is less likely to cause allergic reaction. When the contrast material is injected, it is normal to feel a flushing sensation for a minute or two. Some customers may have a metallic taste in their mouth after the contrast injection
  • The radiographer begins by positioning you on the MRI examination table. Straps and pillows may be used to help you maintain the correct position and to hold still during the examination. 
  • After positioning you, the radiographer will offer you earplugs to reduce the noise of the MRI scanner, which produces loud thumping and humming noises during imaging. These noises are harmless. Then, the radiographer will enter a separate room where the radiographer operates the MRI machine and monitor your examination. The radiographer will be able to see, hear and speak with you at all times. 
  • The table will move slowly through the machine as the MRI scan is performed. When images are being recorded, you will hear a thumping and humming sound. Please remain still while the images are being recorded. It is normal for the area of your body being imaged to feel slightly warm. If it bothers you, please notify the radiographer. 
  • When the examination is completed, you will be asked to wait until the radiologist verifies that the images are of good quality for accurate interpretation. Though the scanning itself causes no pain, there may be some discomfort from having to remain still for several minutes.


Women should inform their physician or radiographer if there is any possibility that they are pregnant.

Disclaimer: All information, content, and material of this website is for informational purposes only and are not intended to serve as a substitute for the consultation, diagnosis, and/or medical treatment of a qualified physician or healthcare provider.

KKLIU 1600/2021