Teng, T.H.

embolism patient perfusion diagnosis strategy perfusion lung scan implementation anticoagulant perfusion scan ventilation lung scan study van beek ejr april angiography consensus march anticoagulant therapy ultrasonography result consensus strategy treatment perfusion lung scans ventilation period embolism diagnosis leg veins consensus-based strategy approach therapy management consensus-based physician proportion deep-vein thrombosis analysis chest defect characteristic buller hr hospital venou anticoagulant treatment venous thromboembolism phase outcome berghout table number medicine increase intern thrombosis department process 618 patients netherland compression 10 patients angiogram patient characteristics compression ultrasonography truncal artery 250 patients lower-limb veins rotterdam improvement cate jw ventilation /perfusion scan physicians 2000 336 december 1997 association subsegmental cases <48 h cost effectiveness analysis observation buller ventilationperfusion lung scanning chart perfusion-ventilation lung scintigraphy thromboembolism lung segment chart