This projection of the ribs below the diaphragm demonstrates an AP projection of the posterior ribs below the diaphragm, approximately 10-12. You may use a 14 x17 either lengthwise or crosswise in the Bucky. Patient placed in true AP position, recumbent if condition allows. Hands resting under head with elbows relaxed against table. CR is perpendicular directed to the midpoint of the film.
Respiration is suspended at the end of full exhalation to elevate the diaphragm.
Patient may be examined erect or recumbent - again recumbent is recommended for the ribs below the diaphragm. Use a 14x17 cassette lengthwise in the Bucky. From the AP position, rotate the patient about 45 degrees toward the affected side. The side closest to the film is the anatomy of interest. Center a plane midway between MSP and the lateral surface of the body to the midline of the table.