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Effective techniques for reduction of radiation dosage to patients undergoing invasive cardiac procedures

¹ Department of Cardiology, Klinik Fraenkische Schweiz, Feuersteinstr. 2, D-91320 Ebermannstadt and ² Department of Cardiology, Ernst Moritz Arndt University, Friedrich-Loeffler Str. 23, D-17487 Greifswald, Germany

View larger version (19K): [in a new window]   Figure 1. Current published reports (references [1–10] black bars) and the authors' own results (white bars) on patient radiation exposure from coronary angiography (CA) and angioplasty (PTCA), percutaneous combined interventions (PCI), high-frequency rotational atherectomy (HFRA) and excimer-laser angioplasty (ELCA).

View larger version (24K): [in a new window]   Figure 2. Straight-line regression of overall dose–area product (DAP) to (a) body mass index (BMI) and (b) body surface area (BSA).

View larger version (41K): [in a new window]   Figure 3. Graph demonstrating the influence of angulation on cinegraphic radiation intensity during left ventriculography (LV) and angiography for left (LCA) and right (RCA) coronary artery. DAP, dose–area product; PA, posteroanterior view; LAO, left anterior oblique view; RAO, right anterior oblique view.

View larger version (66K): [in a new window]   Figure 4. Left main stem bifurcation in (a) caudal posteroanterior (PA 0°/30°-) and (b) caudal left anterior oblique spider view (LAO 60°/20°-).