  In medical field, intravascular ultrasound (IVUS) is a tomographic imaging
modality, which can identify the boundaries of different layers of blood
vessels. IVUS can detect myocardial infarction (heart attack) that remains
ignored and unattended when only angioplasty is done. During the past decade,
it became easier for some individuals or groups to copy and transmits digital
information without the permission of the owner. For increasing authentication
and security of copyrights, digital watermarking, an information hiding
technique, was introduced. Achieving watermarking technique with lesser amount
of distortion in biomedical data is a challenging task. Watermark can be
embedded into an image or in a video. As video data is a huge amount of
information, therefore a large storage area is needed which is not feasible. In
this case motion vector based video compression is done to reduce size. In this
present paper, an Electronic Patient Record (EPR) is embedded as watermark
within an IVUS video and then motion vector is calculated. This proposed method
proves robustness as the extracted watermark has good PSNR value and less MSE.
