Use of 4-Fr versus 6-Fr Nasobiliary Catheter for Biliary Drainage: A Prospective, Multicenter, Randomized, Controlled Study

<div>Comparison of 4-Fr and 6-Fr nasobiliary drainage catheters. (a) Left, 4-Fr; right, 6-Fr. Both have the same looped configuration. (b) Cross-sectional view. Left, 4-Fr; right, 6-Fr.</div>

Diagnostic and Therapeutic Endoscopy

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Figure 1

Figure 1: Use of 4-Fr versus 6-Fr Nasobiliary Catheter for Biliary Drainage: A Prospective, Multicenter, Randomized, Controlled Study 