Lateral Cervicothoracic (Swimmers/Twinning)
SID 180cm. Done in conjunction with laterals to see C7-T3.
Pt erect, midcoronal parallel to cassette. Arm close to IR raised, shoulder posterior. Arm away is lowered, anterior. No rotation of spine.
CR - perp. to C7 - T1. or 3-5 caudad if shoulders not well depressed.