IR Size: 10 x 12 in ( 24 x 30 cm ) lengthwisePosition of patient:- the position often called is “ swimmer’s lateral “ is achieved by placing the patient in lateral position, either seated or standing, before vertical grid.- have the patient sit or stand straight and adjust the height of the cassette so that the the film is centered to the level of the 2nd thoracic vertebrae.Position of part:-