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-