Direct Abdominal X-rays
• In intestinal obstruction, enlargement and air-fluid levels are seen in intestinal segments.
• Air can be seen under the right diaphragm in patients with perforation.
• The first examination in the diagnosis of free air in the abdomen is direct radiographs.
• The most sensitive type of direct radiography in the diagnosis of free air in the abdomen is standing chest radiography. Standing chest X-ray is more sensitive than standing direct abdominal X-ray.
Barium Reviews
• It is a conventional digestive system imaging method.
• In studies performed with only barium administration, more passage opening is evaluated, while in double contrast studies, it is aimed to examine the mucosa.
• Esophagus, stomach and intestinal loops can be evaluated with barium radiographs.
Colon radiographs
• Double contrast is always shot. Barium and air are given through the rectum.
Computed Tomography
• It is the most sensitive radiological imaging method for free air in the abdomen.
CT Colonoscopy
• It is used as an alternative to colonoscopy in colorectal carcinoma screening.
Ultrasonography
• It is the first examination to be performed due to its superiority and ease in imaging soft tissues.
• Gas is the most important obstacle in ultrasonographic examination of the intestines.
MRI
The use of MRI in the gastrointestinal tract is limited.
