Blood flow is one of the most important functions of the body. It plays a vital role in supplying oxygen to brain and to other organs. Adequate amount of blood flow is very much important for every individual. Analysis of blood flow is essential in diagnosis of diseases. There are various methods used in the field of medicine to analyze blood flow but the cost is so high and poor people cannot make use of it.Our idea is to make it a cost efficient one. Zoom-FFT is a technique that can be implemented as it is simple and economical that could even detect blood clot. To monitor the flow of blood in our body, ultrasound is used. This implementation of ultrasound using Zoom FFT could be achieved with a VLSI chip where data encryption is quiet easier and analysis is done better.