The use of Positron emission tomography/computerised tomography (PET/CT) is well established in the staging and assessment of treatment response of lymphoma. Recent studies have suggested that whole body diffusion-weighted imaging -magnetic resonance imaging (WB-DW-MRI) may be an alternative to PET/CT in both staging and assessment of treatment response. A systematic review was performed to assess the ability of DW-MRI in the assessment of treatment response in lymphoma. Pubmed, Medline, Web of Science and Embase databases were queried for studies examining whole body DW-MRI compared to PET/CT in adult patients using a protocol of search terms. We carried out an extensive assessment of titles, abstracts and full texts of relevant paper as well as quality assessment with the Quality Assessment of Diagnostic Accuracy (QUADAS-2) tool. Eight studies were found to meet the criteria and were included in our review and analysis. Overall, the quality of studies was found to be moderate, with good inter-rater agreement (K = 0.74). Data analysis showed that lesion-based assessment in 5 studies with pooled results had a sensitivity and specificity of 94.7% and 99.3%. Assessment with Cohen's Kappa coefficient showed agreement to be excellent (K = 0.88). Three studies were included for qualitative analysis, two of which showed good equivalence between PET/CT and DW-MRI. WB-DWI-MRI can be considered a sensitive and specific method for assessing treatment response in Lymphoma without the use of ionising radiation or administration of F-18 Flurodeoxyglucose. Further studies are needed to evaluate the optimum b-values in assessing treatment response.

Sexual offenses evoke strong emotional responses and frequently elicit demands from society that offenders be indefinitely incarcerated or treated until they are deemed safe, which may impact the provision of therapeutic treatment for offenders. However, in recent years, there has been a proposal to move toward a positive, strengths-based treatment approach, namely the Good Lives Model (GLM). The present study used semi-structured interviews and a constructivist grounded theory approach to examine the experience of 13 men who were voluntarily engaging in or had completed a GLM community-based treatment program. A conceptual model emerged which outlines the process the men underwent, the factors they identified as crucial for change, and the perceived gains. The model extends previous work by exploring the process from the clients’ perspective. Implications for future research, prevention, and treatment are discussed.