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Physiologic Assessment of Jailed Side Branch Lesions Using Fractional Flow Reserve

Bon-Kwon Koo, MD, PhD^_*, Hyun-Jai Kang, MD, PhD^_*, Tae-Jin Youn, MD, PhD, In-Ho Chae, MD, PhD, Dong-Joo Choi, MD, PhD, Hyo-Soo Kim, MD, PhD^_*, Dae-Won Sohn, MD, PhD^_*, Byung-Hee Oh, MD, PhD, FACC^_*,_*, Myoung-Mook Lee, MD, PhD, FACC^_*, Young-Bae Park, MD, PhD^_*, Yun-Shik Choi, MD, PhD^_* and Seung-Jae Tahk, MD, PhD

^_* Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center and Cardiovascular Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
Cardiovascular Center, Bundang Seoul National University Hospital, Seongnam, Gyeonggi-do, Republic of Korea
Ajou University School of Medicine, Suwon, Republic of Korea

View larger version (19K): [in a new window]   Figure 1 Correlation between fractional flow reserve and percent stenosis.

View larger version (18K): [in a new window]   Figure 2 Receiver-operating characteristic curve using percent stenosis to predict functionally significant stenosis (fractional flow reserve <0.75) in jailed side branch lesions (area under the curve, 0.85; 95% confidence interval, 0.76 to 0.94)