Machine learning is a type of artificial intelligence that is geared towards technological advancement of humans through the use of computers.  Machine learning equips computers with the ability to learn without them being programmed. Computer programs are designed in such a way that they teach themselves to grow and react differently when exposed to new data. This advancement in computing is achieved through continuous exposure to new scenarios, tests and information. The computer is then able pick a pattern or detects a trend from the given data. Through this, the computers then learn how to perform tasks by generalizing from previous examples. In other words the computer is able to solve a problem using prior experience or examples from past data. In modern medicine, medical imaging is an indispensible tool. Machine learning is essential in the medical imaging field through applications that assist in medical image analysis, image fusion, image guided therapy and computer aided diagnosis. Machine learning can also be used to predict response of different patients to treatment through analysis of data.