When billing fluoroscopy for PQRI, is 6045F billed for each fluoroscopy CPT, such as when doing cerebral, cervical and vertebral angiograms or once per session?

Based on our understanding of the following (from AMA CPT Changes, An Insider's View 2009) it should be coded once per session.

"Code 6045F is used to identify documentation of radiation exposure or exposure time in the final report for procedures using fluoroscopy as part of the Exposure Time Reported for Procedures Using Fluoroscopy5 measure. Neither procedure allows for exclusions as part of the measure."