In the medical world, radiology is defined as a special field of study that uses medical imaging to diagnose and treat any diseases and illnesses seen within the body of an individual or the patient. The variety of imaging techniques which are being used to diagnose and treat diseases includes ultrasound, CT or computed tomography scan, X-ray radiography, MRI or magnetic resonance imaging and nuclear medicine such as PET or positron emission tomography. The clinician or the primary health care professional is the one who requested the imaging procedure, which can either be routinely or for emergency purposes, and the one who carried out the acquisition of the medical images is a professional called as radiographer or radiologic technologist and the one who interprets or reads the images and files a report of their findings and diagnosis is the professional called as diagnostic radiologists or reporting radiographer. The picture archiving and communication systems or PACS for short, is basically, one of the medical imaging technology where the imaging exams are beings stored, and it can provide convenience of access and economical storage to the images gained from the imaging techniques and procedures made by the radiologists.
In this modern era, most of the hospitals and medical centers and clinics are making use of the different technologies invented by the scientist and inventors that can be provide them the convenience and lighter workload on their duties and responsibilities as professionals in the medical world, and one of the most popular technology, nowadays, is the radiology information system or RIS for short. RIS or radiology information system, is basically one of the products of modernization, and it became the core system for the electronic management of each and every imaging departments. Radiology information system is basically an electronic health record system that is specialized for radiology, and it is also considered as a computer database that can help in manipulating, tracking and distribute any imagery and data of their patients. This certain system works by merging and integrating multiple functions into a single comprehensive system, and with that it can avoid and eliminate any redundancies to happen thus, increase in accessibility and efficiency within the hospital or clinic takes place. The different kinds of features of radiology information system includes patient registration and scheduling, interface with modality through work-list, radiology department workflow management, request and document scanning, reporting and printout, result delivery such as faxing and e-mailing of medical or clinical reports, interactive documents, patient tracking, modality and material management, technical files creation, PACS workflow, appointment booking, custom report creation, rule engines, billing, patient list management and result entry. The benefits that the health care provider and the hospital or clinic may obtain upon using the RIS includes obtaining a more accurate diagnoses and better health outcomes, better coordination of patient care, higher quality of patient care, and higher cost of savings and efficiency.