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  2. Contrast CT - Wikipedia

    en.wikipedia.org/wiki/Contrast_CT

    A CT pulmonary angiogram, in this case showing pulmonary embolism of saddle-type, which becomes more radiolucent than the radiocontrast filled blood surrounding it (but it may be indistinguishable without radiocontrast). Contrast CT, or contrast-enhanced computed tomography (CECT), is X-ray computed tomography (CT) using radiocontrast.

  3. CT pulmonary angiogram - Wikipedia

    en.wikipedia.org/wiki/CT_pulmonary_angiogram

    State of the art modern CT scanners with a scan rate of up to 320 mm/s can acquire all the images within a 1-second X-ray exposure, avoiding the problems of respiratory motion, cardiac motion and contrast draining from the pulmonary circulation during the study. Even though the actual scan may be completed in 1 second or less, considerable ...

  4. CT scan - Wikipedia

    en.wikipedia.org/wiki/CT_scan

    A computed tomography scan (CT scan), formerly called computed axial tomography scan (CAT scan), is a medical imaging technique used to obtain detailed internal images of the body. [2] The personnel that perform CT scans are called radiographers or radiology technologists.

  5. Barium sulfate suspension - Wikipedia

    en.wikipedia.org/wiki/Barium_sulfate_suspension

    Other side effects may include a feeling of weakness, pale skin, ringing in the ears, constipation, and vomiting. [10] Patients may be strongly encouraged to avoid vomiting, as expelling a substantial quantity of the suspension may void its effect on the CT scan and produce unusable results, requiring a retest.

  6. Computed tomography angiography - Wikipedia

    en.wikipedia.org/wiki/Computed_tomography...

    Volume rendered CT scan of abdominal and pelvic blood vessels. CT angiography is a contrast CT where images are taken with a certain delay after injection of radiocontrast material. The contrast material is radiodense causing it to light up brightly within the blood vessels of interest. In order for the CT scanner to be able to scan the correct ...

  7. Computed tomography of the head - Wikipedia

    en.wikipedia.org/wiki/Computed_tomography_of_the...

    However, coronal images require the person to hyperextend their neck, which must be avoided if any possibility of neck injury exists. [8] CT scans of the head increase the risk of brain cancer, especially for children. As of 2018, it appeared that there was a risk of one excess cancer per 3,000–10,000 head CT exams in children under the age ...

  8. Computed tomography of the chest - Wikipedia

    en.wikipedia.org/wiki/Computed_tomography_of_the...

    Contrast agents are sometimes used in CT scans of the chest to accentuate or enhance the differences in radiopacity between vascularized and less vascularized structures, but a standard chest CT scan is usually non-contrasted (i.e. "plain") and relies on different algorithms to produce various series of digitalized images known as view or "window".

  9. Radiography - Wikipedia

    en.wikipedia.org/wiki/Radiography

    Images generated from computed tomography, including a 3D rendered image at upper left. Computed tomography or CT scan (previously known as CAT scan, the "A" standing for "axial") uses ionizing radiation (x-ray radiation) in conjunction with a computer to create images of both soft and hard tissues. These images look as though the patient was ...