Figure 1.

Adrenal vein sampling (AVS) data.

Adrenal vein catheterization was considered successful when selectivity index (SI) was ≥2 before and ≥5 after cosyntropin administration.

Unilateral PA was diagnosed if lateralized index (LI) was ≥2 before and ≥4 after cosyntropin administration. B/L, bilateral.

^*, Classification based on post-cosyntropin data. Uni, unilateral; Bi, bilateral; Failed, failure of adrenal vein catheterization.

⁺, In this patient, AVS data suggested clear lateralization and contralateral suppression prior to cosyntropin stimulation, but bilateral PA after cosyntropin.