Virtual bronchoscopy: segmentation method for real-time display.
Computed tomography (CT) data sets obtained in 14 patients were used in a segmentation method for virtual bronchoscopy (VB). The method constrained the distance of propagation of a region-growing algorithm. The resulting three-dimensional bronchial model was a faithful representation of the source CT data and could be manipulated in real time at frame rates of one to two frames per second. Preliminary data showed that 90% of bronchi (up to third order) measureable on multiplanar CT reformations were also measurable at VB. The bronchial diameters measured at VB were within 1 mm of those measured on multi-planar reconstructions of the CT data.
Summers
R M
RM
Department of Diagnostic Radiology, Henry M. Jackson Foundation, Warren Grant Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA.
Feng
D H
DH
Holland
S M
SM
Sneller
M C
MC
Shelhamer
J H
JH
D000328:Adult; D000368:Aged; D000465:Algorithms; D001982:Bronchial Diseases / Q000000981:diagnostic imaging; D001995:Bronchography / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D001999:Bronchoscopy / Q000379:methods* / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data