Variant	Radiologic examination	Appropriateness rating
Arthritis	Plain radiography; AP, lateral, and oblique	9
	Plain radiography; AP and lateral	2
	CT	2
	MRI	2
	Nuclear medicine imaging; bone scan	2
	Ultrasonography	2
Avascular necrosis of the metatarsal head (Freiberg's disease)	Plain radiography; AP and lateral with or without oblique	9
	CT	2
	MRI	2
	Nuclear medicine imaging; bone scan	2
	Ultrasonography	2
Morton's neuroma	Plain radiography; AP and lateral	9
	MRI	9
	Ultrasonography (can be used in place of MRI, with proper expertise)	9
	CT	2
	Nuclear medicine imaging; bone scan	2
Painful accessory bones	MRI	9
	Nuclear medicine imaging; bone scan	3
	CT	2
	Ultrasonography	2
Plantar fasciitis	Plain radiography; AP and lateral	9
	MRI	9
	Ultrasonography (can be used in place of MRI, with proper expertise)	8
	Nuclear medicine imaging; bone scan	2
	CT	2
Reflex sympathetic dystrophy	Plain radiography; AP, lateral, and oblique	9
	Nuclear medicine imaging; bone scan (if plain films are not diagnostic)	8
	Plain radiography; AP and lateral	2
	CT	2
	MRI	2
	Ultrasonography	2
Stress fracture	MRI	9
	CT (especially for follow-up of healing fractures)	6
	Nuclear medicine imaging; bone scan (if MRI cannot be performed)	2
	Ultrasonography	2
Tarsal coalition	Plain radiography; AP, lateral, oblique, and Harris-Beath view	9
	CT	9
	Plain radiography; AP and lateral	2
	MRI	2
	Nuclear medicine imaging; bone scan	2
	Ultrasonography	2
Tarsal tunnel syndrome	Plain radiography; AP, lateral, and oblique	9
	MRI	9
	Ultrasonography (can be used in place of MRI, with proper expertise)	8
	Nuclear medicine imaging; bone scan	2
	CT	2