Physical and dosimetric characterisation of different Contrast-Enhanced digital mammographic systems: A multicentric study.

Purpose: Contrast-enhanced digital mammography (CEDM) is a relatively new imaging technique recombining low- and high-energy mammograms to emphasise iodine contrast. This work aims to perform a multicentric physical and dosimetric characterisation of four state-of-the-art CEDM systems.

Methods: We evaluated tube output, half-value-layer (HVL) for low- and high-energy and average glandular dose (AGD) in a wide range of equivalent breast thicknesses.

Lung dual energy CT: Impact of different technological solutions on quantitative analysis.

Purpose: To evaluated the accuracy of spectral parameters quantification of four different CT scanners in dual energy examinations of the lung using a dedicated phantom.

Method: Measurements were made with different technologies of the same vendor: one dual source CT scanner (DSCT), one TwinBeam (i.e.