Contrast-Enhanced Carotid Color-Coded Duplex Sonography for Carotid Stenting Follow-Up Assessment

Article Figures & Data

TABLE 1:

Summary of CS procedures, follow-up findings, and depiction of the stented lumen at CCCD and CE-CCCD sonography

Patient	Side	Location and Type of Stent^*	Patency on DSA	CCCD	CE-CCCD
1	R	C2, overlapped (Smart)	No stenosis	Partial	Complete^‡
2	R	C2–C3, single (Smart)	No stenosis	Partial	Complete^‡
3	R	C2–C3, single (Palmaz)	No stenosis	Partial	Complete^‡
4	R	C2–C4, single (Smart)	Intimal hyperplasia^§	Partial	Partial
5	R	C2–C4, single (Palmaz)	No stenosis	Partial	Complete^‡
6	L	C3, single (Palmaz)	Not evaluated	Partial	Complete^‡
7	L	C3–C4, single (Palmaz)	No stenosis	Complete	Complete
8	L	C3–C4, single (Smart)	No stenosis	Complete	Complete
9	R	C3–C4, single (Palmaz)	No stenosis	Complete	Complete
10	R	C3–C4, single (Palmaz)	No stenosis	Complete	Complete
11	R	C3–C4, single (Palmaz)	No stenosis	Complete	Complete
12	R	C3–C5, single (Palmaz)	No stenosis	Complete	Complete
13	R	C4–C5, single (Smart)	No stenosis	Complete	Complete
14	L	C4–C5, overlapped (Palmaz, Wiktor)	No stenosis	Partial	Complete^‡
15	L	C6–T1, single (Smart)	No stenosis	Complete	Complete

* C indicates cervical vertebra; T, thoracic vertebra. Smart, Smart stent; Palmaz, Palmaz stent; Wiktor, Wiktor stent.
† SA indicates digital subtraction angiography.
‡ In six patients who had overlapped stents or a high cervical lesion, CE-CCCD was helpful for visualization of the entire stented lumen. The location of the stent was confirmed on cervical radiograph, lateral views.
§ Asymptomatic intimal hyperplasia with luminal narrowing of approximately 50%.