Affiliation:
1. School of Engineering, Cochin University of Science & Technology, Kochi, Kerala, India
Abstract
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 a 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:
The performance of the proposed method is also tested by various analysis metrics. The robustness
of the method against different noises and attacks is analyzed.
Conclusion:
The results show that the method is efficient and well suitable for medical images.
Publisher
Bentham Science Publishers Ltd.
Subject
Radiology Nuclear Medicine and imaging