Delayed Na(18)F PET/CT imaging does not improve quantification of vascular calcification metabolism. Although contrast resolution improves with time, arterial Na(18)F avidity is invariant to the time between Na(18)F administration and PET/CT acquisition. Therefore, the optimal PET/CT acquisition time-point to quantify vascular calcification metabolism is achieved as early as 45 minutes after Na(18)F administration.

The sentinel node detection rate is high in women with early-stage cervical cancer; 96.3% with 82.0% bilateral detection • Sentinel node mapping has a sensitivity of 96.3% and a negative predictive value of 98.7% in women with tumor size >20 mm • Adherence to the sentinel node mapping algorithm is crucial in maintaining high sensitivity in women with tumors >20 mm • FDG-PET/CT for nodal staging of women with early-stage cervical cancer seems limited if sentinel node mapping is performed

Research, University of Southern Denmark are acknowledged for help with the literature search.

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Background: The use of hybrid PET/MRI for clinical staging is growing in several cancer forms and, consequently, PET/MRI has also gained interest in the assessment of non-small cell lung cancer (NSCLC) and lung lesions. However, lung evaluation with PET/MRI is associated with challenges related to technical issues and diagnostic image quality.We, therefore, investigated the published literature on PET/MRI for clinical staging in NSCLC or lung nodule detection specifically addressing diagnostic accuracy and technical issues.