CT

What is a CT?
The single slice, or single row, CT technology was the industry standard for nearly three decades. Over the past several years, multi-detector CT has become state of the art and has quickly leaped from four to eight to sixteen rows of detectors. The newest generation multi-detector scanners collect up to 64 slices of data in a single revolution in less than one-third of a second. With one breath hold, greater patient coverage is possible with thinner slices and higher spatial resolution, thereby giving us the ability to acquire higher quality images in significantly less time. This enhanced image quality and faster scanning has impacted every subspecialty in radiology. Its particular strengths include vascular imaging, coronary CTA, oncological imaging, and whole-body imaging.


What are the advantages of a CT scan compared to an MRI?

A key advantage of CT is its ability to show detailed images of bones, blood vessels, and soft tissue in the same image. Bones in the image don’t obscure the underlying tissues. A CT can also reveal tumors and measure a tumor’s size and location. CT is considered the best method of diagnosing different kinds of cancers. It is also commonly used in diagnosing vascular diseases, detecting osteoporosis, and identifying traumatic injuries to internal organs.

Another advantage of CT: The procedure is faster and costs much less than an MRI.


Types of CT

  • CT of the Head
    CT scanning of the head is an examination that provides detailed information on head injuries, brain tumors, and other brain diseases. It also can show bone, soft tissues, and blood vessels in the same images.

  • CT of the Chest
    CT of the chest is used to take a closer look at findings detected on conventional chest x-rays or may be used to investigate and try to explain clinical signs or symptoms of disease of the chest. The CT examination may provide more specific information regarding the nature and extent of the findings or, in some cases, determine that the chest is normal. CT is especially useful because it can simultaneously show many different types of tissue including the lungs, heart, bones, soft tissues, muscle and blood vessels.

    CT may be used to detect and evaluate the extent of tumors that arise in the lung and mediastinum, or tumors that have spread there from other parts of the body. CT is routinely used to assess whether tumors are responding to treatment.

  • CT of the Abdomen
    CT imaging of the abdomen is an examination that uses x-rays to visualize several types of tissue with great clarity, including organs such as the liver, spleen, pancreas and kidneys. Using specialized equipment and expertise to create and interpret CT scans of the lower gastrointestinal (GI) tract, the colon and rectum, an experienced radiologist can accurately diagnose many causes of abdominal pain, such as an abscess in the abdomen, inflamed colon or colon cancer, diverticulitis and appendicitis.

  • CT of the Spine
    CT scan of the spine is a type of x-ray examination that uses a scanner to obtain multiple images of the spinal column, as well as three-dimensional images if needed. CT images are far more detailed than those obtained by a conventional x-ray unit. In addition, CT is a very useful diagnostic method because it can display and distinguish many different types of tissue in the same region, including bone, muscle, soft tissue and blood vessels. The bony structure of the spinal vertebrae is clearly and accurately shown by CT scanning, as are the intervertebral disks and, to some degree, the spinal cord.

  • Bone Densitometry
    Bone Densitometry is a non-invasive study that determines the mean bone density in various parts of the skeleton (e.g. hip or spine), in order to detect osteoporosis and assess risk for fractures associated with this condition.

  • Whole Body Scanning
    Performed in a matter of minutes, screens for the presence of heart disease, certain cancers, as well as other abnormalities. The purpose of a body scan is to identify abnormalities and diseases at an early stage. Studies have shown that early detection of certain diseases may substantially increase the chance of recovery

  • Below are additional scans provided through CT:
    - Renal
    - Pelvis
    - Sinuses
    - Dental (Maxilla/Mandible)
    - TMJ
    - Carotids


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