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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 CT scan demonstrating acute appendicitis (note the appendix has a diameter of 17.1 mm and there is surrounding fat stranding) A fecalith marked by the arrow that has resulted in acute appendicitis. Where it is readily available, computed tomography (CT) has become frequently used, especially in people whose diagnosis is not obvious on history ...
Computed tomography of the abdomen and pelvis, performed as a contrast CT, here presented as a volume rendering, specifying the scan range and field of view (FOV). 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.
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.
A CT scan or ultrasound of the abdomen and pelvis are the preferred imaging modalities in the evaluate of an acute abdomen. [8] The use of radiocontrast agents with CT scans improve diagnostic accuracy. [2] Some authors advocate for the use of CT angiography with contrast of the abdomen and pelvis as the preferred imaging modality. [2]
Guarding is a characteristic finding in the physical examination for an abruptly painful abdomen (an acute abdomen) with inflammation of the inner abdominal (peritoneal) surface due, for example, to appendicitis or diverticulitis. The tensed muscles of the abdominal wall automatically go into spasm to keep the tender underlying tissues from ...
Barium sulfate suspension, often simply called barium, is a contrast agent used during X-rays. [1] Specifically it is used to improve visualization of the gastrointestinal tract (esophagus, stomach, intestines) on plain X-ray or computed tomography. [2] It is taken by mouth or used rectally. [3]
It is also called appendicolith when it occurs in the appendix and is sometimes concurrent with appendicitis. [1] They can also obstruct diverticula. It can form secondary to fecal impaction. A fecaloma is a more severe form of fecal impaction, and a hardened fecaloma may be considered a giant fecalith. The term is from the Greek líthos=stone. [2]