Relationship between biomarkers and findings on low-dose computed tomography in hospitalised patients with acute exacerbation of COPD.

Background: Acute exacerbations of COPD (AECOPD) and community acquired pneumonia (CAP) often coexist. Although chest radiographs may differentiate between these diagnoses, chest radiography is known to underestimate the incidence of CAP in AECOPD. In this exploratory study, we prospectively investigated the incidence of infiltrative changes using low-dose computed tomography (LDCT).

Whole-body-MR imaging including DWIBS in the work-up of patients with head and neck squamous cell carcinoma: a feasibility study.

Objectives: To assess the feasibility of whole-body magnetic resonance imaging (WB-MRI) including diffusion-weighted whole-body imaging with background-body-signal-suppression (DWIBS) for the evaluation of distant malignancies in head and neck squamous cell carcinoma (HNSCC); and to compare WB-MRI findings with (18)F-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG-PET/CT) and chest-CT.

Methods: Thirty-three patients with high risk for metastatic spread (26 males; range 48-79 years, mean age 63 ± 7.9 years (mean ± standard deviation) years) were prospectively included with a follow-up of six months.

MR imaging of the posterior hypophysis in children with tuberculous meningitis.

The syndrome of inappropriate antidiuretic hormone secretion (SIADH) contributes to the morbidity and mortality in children with tuberculous meningitis (TBM). MRI assists in the early diagnosis of TBM and absence of the normal posterior pituitary bright spot (PPS) on T1-weighted MRI in TBM may indicate the functional integrity of the posterior hypophysis. The objective of this retrospective descriptive study of 22 children with TBM was to determine the prevalence of an absent PPS on T1-weighted MRI in children with TBM and its correlation with serum sodium levels (hyponatremia), severity of disease at presentation, and developmental outcome after 6 months.