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English: A 50 year old woman undergoing contrast CT because of suspected pulmonary embolism, which it excluded. The contrast delivery unit is seen at top left. The contrast delivery unit is seen at top left.
Abdominal imaging is associated with many potential uses for the different phases of contrast CT.The majority of abdominal and pelvic CT's can be performed using a single-phase, but the evaluation of some tumor types (hepatic/pancreatic/renal), the urinary collecting system, and trauma patients among others, may be best performed with multiple phases.
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.
Using contrast material can also help to obtain functional information about tissues. Often, images are taken both with and without radiocontrast. CT images are called precontrast or native-phase images before any radiocontrast has been administered, and postcontrast after radiocontrast administration. [2]
Computed tomography of the abdomen and pelvis, performed as a contrast CT, here presented in the sagittal, en:Coronal planecoronal and axial plane, with 3 mm slice thickness. It shows normal anatomy, with no injuries. The subject is a 21 year old male who had blunt trauma to the upper abdomen during motocross.
This is an important factor when for example determining whether a ventilation/perfusion scan (V/Q scan) or a CT pulmonary angiogram (CTPA) is the optimal investigation in pregnant women with suspected pulmonary embolism. A V/Q scan confers a higher radiation dose to the fetus, while a CTPA confers a much higher radiation dose to the mother's ...
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Using pre-existing images, including CT colonography exams, [14] QCT allows for bone density screening without submitting the patient to any additional radiation exposure. The feasibility of using routine abdominal contrast-enhanced CT scans for the evaluation of bone density by QCT has also been demonstrated. [15]