RT Journal Article SR Electronic T1 Increased diagnosis rates using ultrathin bronchoscopy and thin bronchoscopy with the EBUS-guide sheath method with virtual bronchoscopic navigation assistance JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P2315 VO 42 IS Suppl 57 A1 Masaki Anzai A1 Yukihiro Umeda A1 Miwa Morikawa A1 Chisato Honjo A1 Yasuyuki Sumida A1 Maiko Kadowaki A1 Shingo Ameshima A1 Takeshi Ishizaki A1 Tamotsu Ishizuka YR 2013 UL http://erj.ersjournals.com/content/42/Suppl_57/P2315.abstract AB BackgroundAt our institution, we generally conduct an ultrathin (UT) (diameter 2.8 mm) bronchoscopy examination followed by a thin (diameter 4.0 mm) bronchoscopy examination using the EBUS-GS method, both with the assistance of virtual bronchoscopic navigation (VBN).MethodsFrom May 1, 2011, to December 31, 2012, we examined 53 cases with an abnormal lung shadow less than 30 mm in diameter with UT bronchoscopy using VBN, followed by thin bronchoscopy with the EBUS-GS method and VBN.ResultsWith assistance from VBN, we diagnosed 33 cases (62.3%) using UT bronchoscopy and 33 cases (62.3%) by thin bronchoscopy with EBUS-GS. Cases with a positive diagnosis were increased to 37 (69.8%) by the use of both. When limited to cancer cases, 32 (72.7%) were found positive using UT bronchoscopy and 32 (72.7%) were positive using thin bronchoscopy with EBUS-GS. The diagnosis rate was elevated to 81.8% (n=36) by use of both methods.ConclusionWith the assistance of VBN, the diagnosis rates of UT bronchoscopy and thin bronchoscopy with EBUS-GS were not largely different. However, when both were utilized, the rate increased by 9.1% for cancer and 7.5% for all cases.