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Anders Herlitz Christian Munthe Marianne Törner Gun Forsander 《Health communication》2016,31(8):964-973
This article argues that standard models of person-centred care (PCC) and shared decision making (SDM) rely on simplistic, often unrealistic assumptions of patient capacities that entail that PCC/SDM might have detrimental effects in many applications. We suggest a complementary PCC/SDM approach to ensure that patients are able to execute rational decisions taken jointly with care professionals when performing self-care. Illustrated by concrete examples from a study of adolescent diabetes care, we suggest a combination of moral and psychological considerations to support the claim that standard PCC/SDM threatens to systematically undermine its own goals. This threat is due to a tension between the ethical requirements of SDM in ideal circumstances and more long-term needs actualized by the context of self-care handled by patients with limited capacities for taking responsibility and adhere to their own rational decisions. To improve this situation, we suggest a counseling, self-care, adherence approach to PCC/SDM, where more attention is given to how treatment goals are internalized by patients, how patients perceive choice situations, and what emotional feedback patients are given. This focus may involve less of a concentration on autonomous and rational clinical decision making otherwise stressed in standard PCC/SDM advocacy. 相似文献
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Increased brain perfusion contrast with T2‐prepared intravoxel incoherent motion (T2prep IVIM) MRI 下载免费PDF全文
The feasibility to measure brain perfusion using intravoxel incoherent motion (IVIM) MRI has been reported recently with currently clinically available technology. The method is intrinsically local and quantitative, but is contaminated by partial volume effects with cerebrospinal fluid (CSF). Signal from CSF can be suppressed by a 180° inversion recovery (180°‐IR) magnetization preparation, but this also leads to strong suppression of blood and brain tissue signal. Here, we take advantage of the different T2 relaxations of blood and brain relative to CSF, and implement a T2‐prepared IVIM (T2prep IVIM) inversion recovery acquisition, which permits a recovery of between 43% and 57% of arterial and venous blood magnetization at excitation time compared with the theoretical recovery of between 27% and 30% with a standard 180°‐IR. We acquired standard IVIM (IVIM), T2prep IVIM and dynamic susceptibility contrast (DSC) images at 3 T using a 32‐multichannel receiver head coil in eight patients with known large high‐grade brain tumors. We compared the contrast and contrast‐to‐noise ratio obtained in the corresponding cerebral blood volume images quantitatively, as well as subjectively by two neuroradiologists. Our findings suggest that quantitative cerebral blood volume contrast and contrast‐to‐noise ratio, as well as subjective lesion detection, contrast quality and diagnostic confidence, are increased with T2prep IVIM relative to IVIM and DSC. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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