OBJECTIVE Sub-standard quality in X-ray image acquisition and interpretation is common in low-resource countries, and can ultimately result in higher patient morbidity and mortality. This study aimed at evaluating; 1) feasibility of implementing a digital X-ray device in a second level hospital in Angola; 2) quality of digital X-ray images, when digital radiology was in the hands of local techn...

Now a day’s number of medical images are generated in scan center. These are emerging tool to diagnose diseases. The storage of an image is an economical problem of scan center. Hence digital image compression is necessary in order to solve the problem. Normally during compression, loss of data is not acceptable. Hence the scan images have required high resolution and without any loss of data i...

Recently, great concerns have been raised regarding the issue of medical image protection due to the increasing demand for telemedicine services, especially the teleradiology service. To meet this challenge, a novel chaos-based approach is suggested in this paper. To address the security and efficiency problems encountered by many existing permutation-diffusion type image ciphers, the new schem...

James H. Thrall, MD Teleradiology—the ability to obtain images in one location, transmit them over a distance, and view them remotely for diagnostic or consultative purposes—has been explored for nearly 50 years and is part of the more encompassing concept of “telemedicine”—the delivery of health care services over a distance. Major advances in telecommunications and computer systems and advanc...

Handheld personal digital assistants (PDAs) have undergone continuous and substantial improvements in hardware and graphics capabilities, making them a compelling platform for novel developments in teleradiology. The latest PDAs have processor speeds of up to 400 MHz and storage capacities of up to 80 Gbytes with memory expansion methods. A Digital Imaging and Communications in Medicine (DICOM)...

Future B-ISDN networks will support a wide range of new multimedia services, whose characteristics are still mostly unknown. Among them the area of multimedia communications in medicine will result one of the most critical. This class of problems is furthermore complicated if we consider the requirements of teleradiology applications that involve the transmission of large amounts of data genera...

In this paper, I explore the healthcare-information technology context as a backdrop for viewing legal issues that accompany telemedicine and teleradiology. In this age of managed care, healthcare informatics has become a burgeoning field. Computer-based technologies help automate processes such as patient data-collection. As patient records become increasingly digitized, they are more easily t...

T he vision of telesurgery comprises a multitude of new communicative elements influencing the way surgeons will treat their patients in the future. The first prerequisite for effective telecommunication is to digitize surgical data. Many medical imaging modalities provide primarily digital data sets, and digital image communication is already entering clinical practice under the labels of tele...