CTC with air insufflation diagnosed T1/T2 stage cancer in 13 of the 38 cases, T3 in 19, and T4 in six;nodal involvement was N0 in 18 cases, N1 in 11, and N2 in nine, Memio said.

• CT结肠镜成像结合空气注入技术在38例患者中发现处于T1/T2期患者13例，T3期的19例，T4期的6例，有淋巴结转移的患者中处于N0期的18例，N1期的11例，N2期的有9例。