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Dynamic plain abdominal radiography

Dynamic plain abdominal radiography refers to a series of X-ray images taken of the abdomen over time, often with the patient in different positions or at different stages of a physiological process. This technique is used to assess the movement and function of various structures within the abdomen, such as the gastrointestinal tract.

Purpose and Uses

- Intestinal Obstruction: It helps in diagnosing conditions like intestinal obstruction by showing air-fluid levels, dilated bowel loops, or absence of gas in certain areas.

- Perforation: It can detect free air under the diaphragm, indicating perforation of a hollow organ.

- Ileus: To differentiate between mechanical obstruction and ileus (a condition where the intestine fails to propel its contents).

- Postoperative Evaluation: Monitoring the postoperative abdomen, especially after bowel surgery.

- Gastrointestinal Motility: Evaluating the movement of contrast material through the intestines.

### Procedure 1. Initial Image: A standard plain abdominal X-ray is taken, often in the supine position. 2. Dynamic Imaging:

  1. Upright or Decubitus Views: Additional images are taken with the patient in an upright or lateral decubitus position to evaluate the distribution of air and fluid.
  2. Multiple Time Points: Images may be taken at various time intervals to observe the progression of intestinal contents or the appearance of air-fluid levels.

### Interpretation Radiologists interpret the images by looking for: - Air-Fluid Levels: Indicate potential bowel obstruction. - Dilated Bowel Loops: Suggests a blockage or decreased motility. - Free Air: Indicates a perforation. - Gas Patterns: Evaluating patterns of gas distribution to assess bowel function.

Dynamic abdominal radiography provides valuable information in acute and chronic abdominal conditions, helping guide further management or surgical intervention if necessary.

Delayed shunt insufficiency

Delayed shunt insufficiency