Advertisement
Mayo Clinic Proceedings Home

Introduction

      The changes that have occurred in diagnostic radiology during the 2 decades that I have been a practicing radiologist are remarkable. Twenty years ago, angiography with rapid film changes and high-speed injectors of contrast material was the pinnacle of our technology. Tomographic techniques were available, but they simply involved film technology; computers had not had an appreciable influence on the imaging field. Most of our day-to-day activity included plain film work, gastrointestinal imaging with barium, and urinary tract studies with water-soluble contrast media. We were beginning to puncture the liver with needles for percutaneous transhepatic cholangiography. Ultrasonography was in its infancy and thus was used only minimally.
      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to Mayo Clinic Proceedings
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      REFERENCES

        • Merhige ME
        • Garza D
        Positron emission tomography of the heart: mapping flow and metabolism in vivo.
        Mayo Clin Proc. 1989; 64: 716-719
        • Forstrom LA
        Positron emission tomography—the promise of metabolic imaging.
        Mayo Clin Proc. 1989; 64: 720-724
        • Graham MM
        • Lewellen TK
        Positron emission tomography and its role in metabolic imaging.
        Mayo Clin Proc. 1989; 64: 725-727