CT at ZP

Innovative CT Technology That Ensures Patient Safety

The Leaders in CT on Long Island

Zwanger-Pesiri Radiology is dedicated to advancing patient care by continually upgrading its CT scanners with the latest Siemens Healthineers technology, delivering exceptional image quality while minimizing radiation exposure.

ZP follows three principles which promise patient safety and low doses of radiation: ALARA (As Low As Reasonably Achievable), Image Wisely™, and Image Gently. This commitment is reflected by the patent awarded to Dr. Steven Mendelsohn, CEO of ZP, in 2012, for a CT dose card (US Patent #: US8,281,996B2). This card was given to patients after their scan to inform them of the radiation dose they were exposed to. This information is now generated on every report so doctors and patients are kept informed.

What are the benefits of CT?

Fast, detailed imaging that helps diagnose conditions quickly and accurately.
Excellent visualization of bones, organs, and blood vessels in a single exam.
Noninvasive and painless, with most scans completed in minutes.
Advanced low-dose technology helps minimize radiation exposure.
Highly effective for emergency and trauma evaluation.
Supports precise diagnosis and treatment planning.
3D cross-sectional images provide greater clarity than traditional X-rays.
Widely available and reliable for a broad range of medical conditions.

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How does CT work?

CT scans use X-rays taken from multiple angles as a patient moves through the opening of the machine. An X-ray tube and a high-resolution digital detector rotate rapidly inside the scanner, capturing images from various angles to create detailed views of bones, soft tissues, organs, and blood vessels. This rotation occurs internally and cannot be detected by the patient. The images produced by a CT scan are significantly more detailed than those from a traditional X-ray, making CT scans an essential tool for diagnosing conditions such as acute brain trauma, kidney stones, and other medical issues.

The CT scanner captures many thin, two-dimensional images that a computer assembles into detailed three-dimensional views. This allows the physician to examine the scanned area layer by layer, providing greater detail to support an accurate diagnosis.

Many CT scans require the use of a contrast dye. The contrast may be taken orally as a drink before the scan or administered through an IV during the exam. This contrast material highlights specific areas of the body, helping to produce the clearest and most detailed images possible.

How do I prepare for a CT exam?

You must remove all jewelry and any other metallic objects such as hearing aids, jeans with metal zippers, body piercings, and removable dental work. Wearing a sweatsuit with no metal may prevent you from having to change into a gown.

Additional prep CT with I.V. contrast

Do not eat anything one hour prior to your exam time. You may drink clear liquids (example: water, ginger ale, apple juice). Keep hydrated before and after your exam.

If you have impaired kidney function, are diabetic, or are 60 years of age or older, we will perform an i-STAT creatinine level at the time of your exam to assess your kidney function. It is important to inform us if you are taking the medication hydroxyurea when making your appointment.

Additional prep CT with oral contrast

If you are receiving oral contrast, please pick up the contrast kit the day before your exam. If you are receiving Omnipaque oral contrast, refer to the Omnipaque oral contrast section below. If you are receiving Redi-CAT oral contrast, please ask your Zwanger-Pesiri representative for those specific instructions.

Omnipaque oral contrast prep for CT scan

Do not take if you have an iodine allergy.

Begin drinking the Omnipaque oral prep one hour and 40 minutes before your exam, preferably finishing 20 to 30 minutes before the exam time.

To prepare the contrast drink:

Pour HALF the contents of the Ominpaque bottle into the 32 oz. cup that was given to you.
Fill the cup with water up to approximately 1/2 inch from the top of the cup (approximately 30 oz).
Stir well and drink.
Discard the cup, contrast bottle and straw after use.

What happens during a CT exam?

First, the technologist ensures that you have no metal on your body, and reviews your medical history with you. You are then asked to lie on the scanning table, which is moved into the center of the machine, and asked to stay as still as possible to ensure the clearest images. Most exams last only a few minutes, depending on the body part.

The exam is non-invasive and the machine never touches your body. The technologist is available via intercom should the patient have any concerns during the exam.

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Benefits of a CT Examination

CT can image bone, soft tissue, and blood vessels at the same time

CT scanning is painless, noninvasive, and accurate

CT imaging provides real-time imaging

CT scanners produce superior exams using a fraction of time and radiation exposure

Locate CT Near You

Why Choose Zwanger Pesiri?

Zwanger-Pesiri Radiology brings world-class expertise to the Long Island community. Our subspecialty-trained radiologists are Board Certified by the American Board of Radiology with fellowship training in a variety of specialties. They are highly-skilled, highly-knowledgeable, and make patient care a priority. To learn more, contact us today.