Background:
Medical imaging encloses different imaging techniques and processes to image the human body for medical
diagnostic and treatment purposes. Hence it plays an important role to improve public health. The technological development in
biomedical imaging specifically in X-ray, Computed Tomography (CT), nuclear ultrasound including Positron Emission
Tomography (PET), optical and Magnetic Resonance Imaging (MRI) can provide valuable information unique to a person.
Objective:
In health care applications, the images are needed to be exchanged mostly over wireless medium. The diagnostic
images with confidential information of a patient need to be protected from unauthorized access during transmission. In this
paper, a novel encryption method is proposed to improve the security and integrity of medical images.
Methods:
Chaotic map along with DNA cryptography is used for encryption. The proposed method describes a two phase
encryption of medical images.
Results:
Performance of the proposed method is also tested by various analysis metrics. Robustness of the method against
different noises and attacks is analyzed.
Conclusion:
The results show that the method is efficient and well suitable to medical images.