final Flashcards
(344 cards)
As a contrast material, barium is described as
being positive, suspension, radiopaque.
For the RAO position of the stomach the midsagittal plane is
rotated approximately 40-70 degrees.
For the PA projection of the colon the central ray is
directed to the level of iliac crest.
For all views of the esophagus the top of the image receptor should be placed
at the level of the patient’s mouth.
The routine KVP for imaging the alimentary canal with barium is
approximately 100 to 110 KVP
Contents from the small bowel enter into the large bowel through
the ileocecal valve
The most proximal portion of the large intestine is
the cecum.
For the AP esophagus position the central ray should
be directed to the level of T5-T6.
For the lateral rectum the CR is directed
to a point that is the level of the ASIS, midcoronal plane.
The body habitus that would present a very long, very slim stomach reaching into the pelvis would be
asthenic
For the LAO position of the esophagus the patient’s left arm is
extended along the left side of body.
The position that best demonstrates the small bowel loops “spread out” and with minimal OID is
prone.
For the RPO oblique of the colon the midsagittal plane is
rotated 35-45 degrees.
For the AP stomach position perpendicular to the IR is
the midsagittal plane.
For the PA axial projection of the colon the central ray is
directed through the level of the ASIS.
For the lateral esophagus position perpendicular to the IR is
the midcoronal plane.
For the right lateral portion of the stomach the midsagittal plane is
rotated from the IR approximately 90 degrees.
For the lateral esophagus projection the central ray should be
directed to the level of T5-T6.
The barium enema position that best demonstrates the elongated recto-sigmoid is
the PA axial.
The “S-shaped” portion of the colon is known as
the sigmoid.
For the RAO position of the stomach the patient’s left arm is
flexed at the elbow, with hand near head.
The position that best demonstrates the splenic flexure in profile is the
LAO
For the LPO position of the stomach the midsagittal plane is
rotated approximately 30 to 60 degrees.
With the patient in the recumbent RAO stomach position, air will be found in the
fundus.