For any software system upon which lives depend, the most important question one can ask about it is, ‘How do we know the system is safe?’ Despite the critical importance of this question, no widely accepted, generally applicable answer exists. Instead, debate continues to rage over the question, with theorists and practitioners quarrelling with each other and amongst themselves. This paper sug...

Extra-cranial arterial dissection accounts for 10% of strokes in young people. Information on safety of thrombolytic administration in this group is limited. The literature, however, does not favor use of thrombolytics for myocardial ischemia when peripheral arterial dissection coexists. Based on the clinical and radiological features, two patients who presented with acute stroke secondary to a...

OBJECTIVE To assess the safety of confining histological examination to gall bladders with radiological and macroscopic features suggestive of cancer. DESIGN Retrospective study. Setting Department of Histopathology, National Hospital of Sri Lanka. METHOD Analysis of all cholecystectomies performed at a tertiary care hospital during a one year period. Computerised histopathological reports ...

Medical information systems and standards are increasingly based on principled models of at least three distinct sorts of information – patient data, concepts (terminology), and guidelines (decision support). Well defined interfaces are required between the three types of model to allow development to proceed independently. Two of the major issues to be dealt with in the defining of such interf...

We explore the safety, and therapeutic benefit of intrathecal injection of ex-vivo expanded autologous bone marrow derived mesenchymal stem cells (BM-MSCs) in 10 patients with advanced multiple sclerosis (MS). Patients were assessed at 3, 6 and 12 months. Assessment at 3-6 months revealed Expanded Disability Scale Score (EDSS) improvement in 5/7, stabilization in 1/7, and worsening in 1/7 patie...

As part of its functions, the IAEA periodically reviews the status and continued relevance of the safety standards to the needs of its Member States. Recent work is described on the development of standards for the radioactive discharge control including the development of practical guidance for setting discharge limits, the elaboration of a methodology for the radiation protection of non-human...

The International Atomic Energy Agency (IAEA) safety requirements: 'General Safety Requirements Part 3--Radiation protection and safety of radiation sources: International Basic Safety Standards' (BSS) was approved by the IAEA Board of Governors at its meeting in September 2011, and was issued as General Safety Requirements Part 3 in July 2014. The equivalent dose limit for the lens of the eye ...

With more minimally invasive surgery, the C-arm has become a regular resident in the OR. Surgeons rely on imaging during cases to guide implant placement and other critical aspects of surgery. How much radiation are OR teams being exposed to, and what safety measures should they be taking? Safety pointers were offered by 2 radiology managers: Jeff Palmucci, CRA, director of radiology services a...

background: health hazards associated with exposure due to the natural radioactivity which is a part of our physical environment are of great concern. in order to assess the risks associated with exposure due to the natural radioactivity in soil and building materials, extensive studies have been carried out all over the world. the most commonly encountered radionuclide’s are 238u, 232th, their...