06 April 2026
: Case report 
Severely Calcified Proximal Superficial Femoral Artery Lesion Treated With Bamboo Spear Technique Under Complete Ultrasound Guidance: A Case Report
Unusual or unexpected effect of treatment
Yoshinori Sakamoto
E 1*, Atsuhiko Sugimoto E 1
DOI: 10.12659/AJCR.952222
Am J Case Rep 2026; 27:e952222
Figure 3 Intravascular ultrasound and angiographic findings after successful lesion dilatation. (A) Retrograde puncture distal to the calcification with advancement into the common femoral artery (CFA) lumen. (B, C) The guidewire was passed through the needle and retrieved via the guiding sheath. (D) External view of the wire system. (E) Predilation with a 3.0×40 mm balloon. (F) Intravascular ultrasound (IVUS) confirming central guidewire passage. (G, H) Dilatation with scoring and drug-coated balloons. (I) Adequate lumen confirmed on IVUS. (J) Final angiogram showing good flow restoration.