BRAGA (Bedside Radiography Automatic Grid Alignment) is a means of easily and automatically
aligning the x-ray tube and grid in bedside radiography. BRAGA permits the use of high ratio (12:1
or 15:1) grids and produces portable radiographs with markedly improved image quality compared
to conventional techniques, with no increase in patient dose. BRAGA's design and operational
principles are described. Virtually perfect focal spot grid alignment is achieved in less than ten
seconds with little additional effort on the part of the technologist. Presented are comparison
conventional (non grid) and BRAGA (15:1 grid) chest portable radiographs obtained employing the
same kVp, mAs and patient dose. The BRAGA X-ray has markedly better image quality than the
conventional portable X-ray.
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