X-Ray KUB, Preparation, Procedure, and the Requirements

28 Oct 2022

X-Ray KUB, Preparation, Procedure, and the Requirements

A significant majority of the plain-film examinations performed on the abdomen are comprised of radiographs of the abdominal region that were obtained. At the same time, the patient’s body was in the supine position.


This View is Useful in Assessing:

* Neoplastic changes

* Calcification

* Bowel obstruction

* Bowel fluid level

* Abdominal pathology

* Renal colic

* Distended abdomen

* Abdominal pain

* Review of Post op. cases

* Abdominal trauma

* Abdominal aortic stent

Patient Preparation

* No preparation is needed. You should wear loose-fitting clothing.

* Notify x-ray technologist about your pregnancy. If you are pregnant or think you may be pregnant at the time of procedure.

* If we are going for the scout of abdominal supine x-ray, then used laxative and purgative and take a soft diet for bowel preparation.

Patient Positioning

* The patient is supine  lying on his or her back on the x-ray table.

* Patients need to change into a hospital gown, with radiopaque items  such as belts, zippers, buttons removed

* The patient must be free from rotation; both shoulders and hips half way from the table

* The x-ray is taken with full inspiration

  • This causes the diaphragm to contract, hence compressing the abdominal organs, allowing all abdominal contents to be visualized on a single image

Technical Factors

  • AP projection
  • Cantering point

* The mid-sagittal plane, equidistant from each anterior superior iliac spine (ASIS) at the level of the iliac crest

  • Collimation

* laterally to the lateral abdominal wall

* superior to the diaphragm

* inferior to the inferior pubic rami

  • Orientation

* portrait

  • Detector size

* 35 cm x 43 cm

  • Exposure

* Vp

* 30-120 mAs; AEC should be used if available

  • SID
  • 100 cm
  • Grid
  • Yes


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