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This paper introduces current watermarking techniques available from the literatures. Requirements for medical watermarking will be discussed. We then propose a watermarking scheme that can recover the original image from the watermarked one. The purpose is to verify the integrity and authenticity of DICOM images. We used ultrasound (US) images in our(More)
We propose a watermarking scheme that can recover the original image from the watermarked one. The purpose is to verify the integrity and authenticity of DICOM images. We used 800x600x8 bits ultrasound (US) images in our experiment. SHA-256 of the whole image is embedded in the least significant bits of the RONI (Region of Non-Interest). If the image has(More)
Despite its charismatic appeal to both scientists and the general public, remarkably little is known about the giant squid Architeuthis, one of the largest of the invertebrates. Although specimens of Architeuthis are becoming more readily available owing to the advancement of deep-sea fishing techniques, considerable controversy exists with regard to topics(More)
We have investigated the use of telemonitoring in three long-term conditions: chronic heart failure (CHF), type 2 diabetes and essential hypertension. Participants were provided with a home telemonitoring unit for a 12-week period and entered physiological data each day. The data were sent automatically via the participant's telephone line to a server and(More)
BACKGROUND Introduction of telehealth into the healthcare setting has been recognised as a service that might be experienced as disruptive. This paper explores how this disruption is experienced. METHODS In a longitudinal qualitative study, we conducted focus group discussions prior to and semi structured interviews post introduction of a telehealth(More)
In order to improve the diagnosis and subsequent care given to patients, health-care workers involved in the management of their care, as well as the treatment itself, are increasingly looking at the role that information and communication technologies (ICTs) can play in supporting the complex interactions between patient, doctor or nurse, consultant and(More)
We have implemented an 'evidence-based referral' for primary care patients in dermatology, cardiology and peripheral vascular disease. Telemedicine clinics bring together a district nurse, patient and vascular surgeon to discuss diagnosis, management and care. During a 30-month study, a total of 30 patients participated in telemedicine clinics. The mean(More)
The objective of this study was to investigate an e-health approach to managing patients presenting with vascular-type symptoms. A pilot study of a prospective cohort of patients referred from a single general practitioner practice of 5700 patients using electronic referral, assessment by a practice nurse, and teleconferencing facilities as an adjunct to(More)