Computed Tomography for Pulmonary Embolism Philip A Araoz
In the late 80s and early 90s two scanners became available
which were fast enough to allow reliable contrast opacifica-
tion of the great vessels. One was the electron beam
CT (EBCT) scanner, which was expensive and not widely
available. The other was the single detector helical scanner.
As a result, in 1992, a European group published a prospec-