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%.