The results confirm that, with the hybrid SPECT-CT system, quantitative analysis of SPECT (90)Y-Bremsstrahlung images and the generation of three-dimensional dose distributions are feasible. The improved analysis of Bremsstrahlung images could have a notable clinical impact, allowing to address the dosimetric verification to patients during the course of therapy.

The petals of 24 different rose varieties were extracted with a pentane/dichloromethane mixture, and the extracts obtained were analyzed by gas chromatography/mass spectrometry. Approximately 30 compounds were identified, distributed in different combinations in the various species or cultivars. The main component was phenylethanol, but some roses showed unusually high levels of benzyl alcohol. In some cases nerol and geraniol were also present in considerable concentrations. 4-Vinylphenol was detected in two samples of Rosa gallica. A sensorial test was performed by some flavorists to evaluate the most interesting extracts. Keywords: Roses; volatiles; GC/MS; essential oil

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The evaluation of radiation burden in vivo is crucial in modern radiology as stated also in the European Directive 2013/59/Euratom—Basic Safety Standard. Although radiation dose monitoring can impact the justification and optimization of radiological procedure, as well as effective patient communication, standardization of radiation monitoring software is far to be achieved. Toward this goal, the Italian Association of Medical Physics (AIFM) published a report describing the state of the art and standard guidelines in radiation dose monitoring system quality assurance. This article reports the AIFM statement about radiation dose monitoring systems (RDMSs) summarizing the different critical points of the systems related to Medical Physicist Expert (MPE) activities before, during, and after their clinical implementation. In particular, the article describes the general aspects of radiation dose data management, radiation dose monitoring systems, data integrity, and data responsibilities. Furthermore, the acceptance tests that need to be implemented and the most relevant dosimetric data for each radiological modalities are reported under the MPE responsibility.

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