A Novel, Modified Reverse Controlled Antegrade and Retrograde Subintimal Tracking Technique for Bypassing the Calcified Proximal Cap of Coronary Total Occlusions

<div>Intravascular ultrasound (IVUS) examination. IVUS was performed after guidewire externalization. Serial IVUS images of right coronary artery (RCA) show the ostial RCA (a), the guidewire entering into the true lumen from the false lumen at the proximal RCA (b), and the guidewire passing the chronic total occlusion (CTO) segment through the subintimal space, avoiding the severely calcified plaque at the proximal segment of CTO ((c)–(e)). Images are viewed in a proximal (a) to distal (e) direction.</div>

Case Reports in Cardiology

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Figure 5

Figure 5: A Novel, Modified Reverse Controlled Antegrade and Retrograde Subintimal Tracking Technique for Bypassing the Calcified Proximal Cap of Coronary Total Occlusions 

Figure 5 | A Novel, Modified Reverse Controlled Antegrade and Retrograde Subintimal Tracking Technique for Bypassing the Calcified Proximal Cap of Coronary Total Occlusions 