Surgery was done through simultaneous dorsal and plantar longitudinal incisions in the center of the foot with the removal of the extra skin and the resection of 3 central rays
. The remaining adjacent metatarsals were approximated using a No.
The technologist who is unaware of the Cieszynski rule would likely choose to place the central ray
perpendicular to the body part or IR.
The Lawrence Method calls for the arm to be abducted (not recommended for trauma) and the central ray
to be medially angled towards the midline.
For a maxillary anterior projection, the central ray
is angled 65[degrees] positively (caudally) and enters just above the tip of the nose, using the bisecting angle technique.
The central ray
was angled 15[degrees] cephalic, directed toward an 8 x 10-inch image receptor centered at C4-5.
The central ray
is directed from the superior medial to the inferior lateral aspect of the breast, approximately at the level of the nipple.
Cephalic angulation of the patient or central ray
was demonstrated by a decrease in the visible amount of lung apex above the clavicles and the manubrium imaged superior to T4.
By adjusting the central ray
angulation to 20 [degrees] cephalad, rather than perpendicular, visualization of the fracture was improved.
A review of the more commonly used positioning textbooks revealed only approximately a half-dozen methods employing the ASIS for central ray
(CR) localization in the abdominopelvic region.[1,2]
To simulate an exam with lateral distance projections using a 14x17-inch film, I then measured the proportional difference between grid absorption and compared these measurements with measurements made in the center of the grid as well as at 7 inches off-center from the central ray