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Computed axial tomography

UniRad Service | Computed axial tomography
UniRad Service | Computed axial tomography

At UniRad | Torre Magnia Radiology Unit, Altabrisa, Mérida, Yucatán, we are dedicated to providing exhaustive and accessible information about Computed Axial Tomography. This diagnostic imaging technique uses advanced x-ray technology to obtain detailed images of cross sections of the human body. These images allow us to clearly see organs, bones and tissues, offering invaluable insight that aids in the diagnosis and treatment of various medical conditions.



What is Computed Axial Tomography?

CT is a non-invasive procedure that combines a series of X-ray images taken from different angles around the body and uses computer processing to create cross-sectional images of internal organs, bones, blood vessels and soft tissues. These images provide more detail than conventional X-rays and can be used to diagnose diseases, plan treatments and guide surgical procedures.


How safe is Computerized Axial Tomography?

Computed Axial Tomography (CAT), also known as Computed Tomography (CT), is generally considered a safe procedure, although like any medical technique, it carries certain risks. Here are some key points to consider about TAC safety


Tomography with Contrast Medium

In some CT exams, contrast dye is used to improve the clarity of the images. Although allergic reactions to contrast material are rare, they can occur, ranging from mild reactions to, in very rare cases, severe reactions. Patients with kidney failure may have additional risk related to contrast medium, as it may affect kidney function.


Clinical Applications of CT

  • Rapid and Accurate Diagnosis: Essential in emergency situations, CT can quickly diagnose internal injuries, bleeding and other critical conditions.

  • Detection of Diseases and Conditions: Widely used to detect cancer, heart disease, vascular disorders, infections, and more.

  • Surgical and Radiotherapy Planning: Helps doctors plan surgical procedures and radiotherapy treatments accurately.

  • Monitoring and Evaluation: Allows doctors to monitor the effectiveness of certain treatments, such as cancer.


Ionizing radiation

The main concern with CT is its use of ionizing radiation. Although the amount of radiation used in a CT scan is generally low, there is long-term concern about cumulative radiation exposure, especially in patients requiring multiple scans. However, the risk of developing cancer from radiation from a CT scan is generally very low.



  • Pregnant women should generally avoid CT, especially in the abdomen and pelvis, due to the potential risk to the fetus from radiation exposure. If a CT scan is necessary, special precautions should be taken to minimize radiation exposure to the fetus.

Summary: CT safety is carefully managed through the ALARA ("As Low As Reasonably Achievable") principle, which seeks to minimize radiation exposure. The benefits of obtaining an accurate and timely diagnosis often outweigh the risks associated with radiation. However, it is always important to discuss the specific risks and benefits with a healthcare professional before undergoing a CT scan.

I went for a CT scan today. Excellent welcome. Everyone was friendly and very professional. I recommend it 100%

- Michael Tememe

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