Access to Imaging Technology in Global Health

Abstract

Diagnostic imaging technologies have changed the way physicians both diagnose and treat human illness. While diagnostic imaging technologies are increasingly available throughout the world, there is great inequality in access to these important medical technologies. According to the World Health Organization (WHO), almost two-thirds of the world population, primarily in low- and middle-income countries (LMICs), lack access to basic imaging technology. This alarming statistic poses the important question, “How does one define ‘access’?” This chapter begins by exploring diagnostic imaging technologies essential to LMICs and the process through which the WHO measures availability of imaging technology. Then, the various aspects that make up the modern concept of “access” to healthcare will be discussed. This chapter will shed light on the modern theory of measuring access as it relates to modern definitions with emphasis on challenges that remain to determine the overall gap in adequate access to diagnostic imaging technology. By understanding what has been done and what remains to be done, one can construct a better picture of how to close the gap in access to imaging technology around the word. Initiatives aimed toward addressing inequality in access will be discussed.