Singap Med J
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Cerebrovascular accident (CVA) is a leading cause of death and disability in many countries. Diffusion-weighted (DW) magnetic resonance (MR) imaging has been reported to be useful in the detection of acute strokes and as an investigative tool evaluating the therapeutic effects of neuroprotective and thrombolytic agents. The objectives of this study are to share our experience using the commercially available isotropic DW scan in imaging of acute stroke, assess its usefulness over conventional T2-weighted (T2W) scans in a busy clinical radiology unit and highlight it pitfalls. ⋯ However, there are potential pitfalls in the evaluation of small hyperacute posterior fossa strokes and venous infarcts. The major strength of this MR technique lies in its ability to diagnose hyperacute strokes and thence the potential for therapeutic thrombolysis, but unfortunately patients qualifying for the "therapeutic window" were a minority. More efforts need to be focused on public education in order for this powerful imaging modality to find its true value and contribute to viability of an effective thrombolytic programme.
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For centuries, physicians have been allowed to interfere and overrule patient's preferences with the aim of securing patient benefit or preventing harm. With the radical rise in emphasis on individual control and freedom, medical paternalism no longer receives unquestioned acceptance by society as the dominant mode for decision-making in health care. ⋯ This can be achieved through a model for shared decision making, acknowledging that though the final choices reside ultimately in patients, only through physician beneficence can the patient be empowered to make meaningful decisions that serve them best. For such a model to function effectively, the restoration of trust in doctor-patient relationship and the adoption of patient-centred communication are both crucial.