What is the primary reason for considering the use of a PA projection of the abdomen in place of an AP?

What is the primary reason for considering the use of a PA projection of the abdomen in place of an AP?

Indications. This view is useful in visualizing bowel obstruction, neoplasms, calcifications, ascites and as scout images in contrast medium studies of the abdomen (i.e. intravenous urography).

When is an abdominal erect image necessary?

The Royal College of Radiologists recommends that when a patient presents with an acute abdomen, a single supine abdominal radiograph is performed. If there is the clinical suspicion of an associated intra-abdominal perforation, then an erect chest radiograph should also be performed.

What is the most commonly performed radiograph of the abdomen?

Radiography of the abdomen may include one or more radiographic projections. The most commonly performed projection is the supine AP projection, often called a KUB because it includes the kidneys, ureters, and bladder.

What is erect view?

The erect anteroposterior chest view is performed with the x-ray tube anteriorly, firing photons through the patient to form the image on a detector positioned behind the patient. A detector can be positioned behind a relatively immobile patient.

Why is a lateral decubitus image of the abdomen ordered?

The lateral decubitus abdominal radiograph is used to identify free intraperitoneal gas (pneumoperitoneum). It can be performed when the patient is unable to be transferred to, or other imaging modalities (e.g. CT) are not available.

Which area of the large intestine is best demonstrated with the PA axial projection?

which area of the large intestine is best demonstrated with the PA axial projection? Both colic flexures should be seen with the Pa axial projection. for the PA oblique projection, RAO position, the patient should be rotated 35 to 45 degrees from the prone postion.

Why we do abdomen erect?

Indications. This view is valuable in visualizing gas-fluid levels and free gas in the abdominal cavity as it allows the assessment of ascites, perforation, intra-abdominal masses, ileus, or postoperative complications.

What is AP supine?

The anteroposterior (AP) radiograph taken with the patient in a supine position is the basis of the majority of plain-film examinations of the abdomen. The abdominal film obtained with the patient in an erect position is ordered routinely, but rarely adds significant diagnostic information.

What is abdominal radiography?

X-ray (Radiography) – Abdomen. Abdominal x-ray uses a very small dose of ionizing radiation to produce pictures of the inside of the abdominal cavity. It is used to evaluate the stomach, liver, intestines and spleen and may be used to help diagnose unexplained pain, nausea or vomiting.

Where is gas normally seen on an erect abdominal radiograph?

Intraluminal gas AXR, the gastric gas bubble in the left upper quadrant of the film is a normal find- ing. Gas is also normally seen within the large bowel, most notably the transverse colon and rectum (fig 2).

What is PA and AP view?

Key points. Posterior-Anterior (PA) is the standard projection. PA projection is not always possible. Both PA and AP views are viewed as if looking at the patient from the front. PA views are of higher quality and more accurately assess heart size than AP images.

What does pa View mean?

In a posteroanterior (PA) view, the x-ray source is positioned so that the x-ray beam enters through the posterior (back) aspect of the chest and exits out of the anterior (front) aspect, where the beam is detected.

When to use an AP or pA x-ray?

In Chest, we prefer the PA view over AP view. But if the patient is very ill and not able to maintain his position then AP view can be done for chest. From exam point of view, any x-ray you see in general is AP, or Lateral (can be interpreted quite logically), any chest x-ray is PA view mostly.

When to use the Pa erect view in radiology?

This view is valuable in visualizing gas-fluid levels and free gas in the abdominal cavity as it allows the assessment of ascites, perforation, intra-abdominal masses, ileus, or postoperative complications. should include the entire transverse width of the patient (if possible; if not, two radiographs may be obtained)

How to do AP and PA radiography in abdomen?

Abdomen Radiography – KUB : AP or PA Projection 1 Supine Position Abdomen. Legs are extended and place support under knees to relieve strain. 2 Upright Position Abdomen. Let patient stand straight erect and its body weight is distributed equally… 3 Radiographic Criteria: AP & PA Projection : Upright and Supine Position.

What is the difference between an AP and a PA view of an X?

PA or AP refers to the dir croon that the X-rays are entering your body and exiting in a PA view, the patient would be standing facing the image receptor. The.