Which statement is NOT true about tangential sesamoid radiography?

Which statement is NOT true about tangential sesamoid radiography?

• A. The SID is 40 inches (102 cm).
• B. The central ray angle is 0 degrees.
• C. The projection is used to visualize the calcaneus.
• D. The toes are dorsiflexed using tape.

Answer: (C)

Tangential sesamoid radiography focuses on bringing the sesamoid bones beneath the first metatarsophalangeal joint into profile by viewing the area tangentially to the plantar surface. To achieve this, a 40-inch SID is commonly used, the central ray is directed parallel to the sole with no angle, and the toes are dorsiflexed with tape to lift the forefoot and place the sesamoids in clear view. This projection is not meant to visualize the calcaneus, which is a different part of the foot and requires a separate view. So the statement about visualizing the calcaneus is not true for this tangential sesamoid view.

Tangential sesamoid radiography focuses on bringing the sesamoid bones beneath the first metatarsophalangeal joint into profile by viewing the area tangentially to the plantar surface. To achieve this, a 40-inch SID is commonly used, the central ray is directed parallel to the sole with no angle, and the toes are dorsiflexed with tape to lift the forefoot and place the sesamoids in clear view. This projection is not meant to visualize the calcaneus, which is a different part of the foot and requires a separate view. So the statement about visualizing the calcaneus is not true for this tangential sesamoid view.