big data in healthcare: a to z

Background & aim: today, with the advent of technology, due to the growing data in the field of health care, it is difficult to manage and analyze this type of data known as the big data. this analysis has many capabilities to improve the quality of care, reduce errors and reduce costs in care services. methods: this study is based on search of databases (pubmed, google scholar, science direct, and scopus). this investigation has done with the websites and the specialized books with standard key words. after a careful study, 50 sources were in the final article.results: since the big data analysis in the field of health has been growing and also considered in recent years, this survey identified the necessity of these analyses, the definition of the big data, the benefits, resources, architecture, applications, analysis, platforms, examples and challenges in the field of health care. conclusion: familiarity with the big data concepts in the field of healthcare can help researchers in conducting applied research and thus improve the quality of health care services and reduce costs.