Value of Multi-slice Helical CT Virtual Endoscopy in Diagnosing Central Bronchogenic Carcinoma
Objective:To discuss the clinical value of multi-slice helical CT virtual endoscopy(VE) in diagnosing central bronchogenic carcinoma.Methods: Multi-Slice helical CT VE was performed in 48 patients with central bronchogenic carcinoma,of which 23 cases with fibrobronchoscope(FBS) as contrast.Results: VE findings included bronchial obstruction(n=33),eccentric stenosis of bronchus or trachea(n=15).The consistency of findings between VE and FBS was up to 93.3%.Conclusion: Multi-slice helical CT virtual endoscopy is helpful for identifying the location and degree of bronchial stenosis in central bronchogenic carcinoma.
Summary In the pilot study, a new geomodeling technology is presented for developing 3D heterogonous geomodels for Athabasca McMurray (MCMR) oil sands. The geomodels were used to simulate SAGD thermal recovery. Both conventional SAGD completions and SAGD with ICD completions were tested. The simulation results show that for a heterogeneous Athabasca McMurray oil sand reservoir, the ICD completion technology enhances oil production and reduces steam consumption. As a result, the economics of SAGD recovery from the heterogeneous sands is improved.