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18F-FDG PET/MR Refines Evaluation in Newly Diagnosed Metastatic Urethral Adenocarcinoma
Riccardo Laudicella,Guido Davidzon,Shreyas Vasanawala,Sergio Baldari,Andrei Iagaru 대한핵의학회 2019 핵의학 분자영상 Vol.53 No.4
We described the clinical impact of 18F-FDG PET/MR in refining the evaluation of a 39-year-old female with newly diagnosed metastatic urethral adenocarcinoma.We detailed the diagnostic imaging workup focusing our attention on the CT, MR, and 18FFDG PET/MR different findings. In this case, 18F-FDG PET/MR imaging evaluation resulted not only effective but also altered staging and spared additional invasive procedures in the assessment of a metastatic urethral adenocarcinoma. Combining a highly sensitive PET with the increase tissue resolution of MR (PET/MR) may improve abdominal and pelvic lesion detection outperforming PET/CT for this indication.
Malavasi, N.,Arnouts, S.,Vibert, D.,de la Torre, S.,Moutard, T.,Pichon, C.,Davidzon, I.,Kraljic, K.,Bolzonella, M.,Guzzo, L.,Garilli, B.,Scodeggio, M.,Granett, B. R.,Abbas, U.,Adami, C.,Bottini, D.,Ca Oxford University Press 2017 MONTHLY NOTICES- ROYAL ASTRONOMICAL SOCIETY Vol.465 No.4
<P>We present the first quantitative detection of large-scale filamentary structure at z similar or equal to 0.7 in the large cosmological volume probed by the VIMOS Public Extragalactic Redshift Survey (VIPERS). We use simulations to show the capability of VIPERS to recover robust topological features in the galaxy distribution, in particular the filamentary network. We then investigate how galaxies with different stellar masses and stellar activities are distributed around the filaments, and find a significant segregation, with the most massive or quiescent galaxies being closer to the filament axis than less massive or active galaxies. The signal persists even after downweighting the contribution of peak regions. Our results suggest that massive and quiescent galaxies assemble their stellar mass through successive mergers during their migration along filaments towards the nodes of the cosmic web. On the other hand, low-mass star-forming galaxies prefer the outer edge of filaments, a vorticity-rich region dominated by smooth accretion, as predicted by the recent spin alignment theory. This emphasizes the role of large-scale cosmic flows in shaping galaxy properties.</P>