"Radiology is the division of medical science involving medical imaging. It might use x-ray machines or other such radiation devices. It also uses techniques that do not involve radiation, such as MRI and ultrasound. As a medical specialty, radiology can refer to two sub-fields, diagnostic radiology and therapeutic radiology. Diagnostic radiology is concerned with the use of various imaging modalities to aid in the diagnosis of disease. Diagnostic radiology can be further divided into multiple sub-specialty areas. Interventional radiology, one of these sub-specialty areas, uses the imaging modalities of diagnostic radiology to guide minimally invasive surgical procedures. Therapeutic radiology—or, as it is now called, radiation oncology uses radiation to treat diseases such as cancer using a form of treatment called radiation therapy. Articles published under PrimeOA Publications Banner are freely available throughout the world, ensuring the authors presence through his/her contribution worldwide. Since PrimeOA Publications International is under the terms of Creative Commons Attribution License, it enables the redistribution and re-use of the original work, as we deposit them in reputed indexes like PubMed Central on behalf of author.