The aim of this retrospective study was to evaluate the correlation between D-dimer levels in positive thromboembolic thoracic computed tomography (CT) with the diameter of the pulmonary trunk and to study the relation between the D-dimer and the uni-or bilateralism of the lesions and the presence of pulmonal trunk involvement. We also analysed gender-specific differences in patients with and without dilatation of the pulmonal trunk. Material and methods: A total of 100 acute care patients (50 men and 50 women) with positive thromboembolic multiple detector computed tomography of the thorax, performed on two modern CT scanners, were retrospectively studied. All thoracic CTs were evaluated by two expert radiologists, with attention paid to the diameter of the pulmonary trunk and the correlation of D-dimer level with the uni-or bilateralism of the lesions. We also analysed sex-specific correlations. All patients underwent multislice computed tomography-examination after applying 70 ml iodinated non-ionic contrast media. Graphpad Prism 8.1.1 software was used for statistical data. Results: The "strongest" weak correlation resulted between D-dimer levels and the axial diameter of the pulmonal trunk. Considering the correlation between the axial diameter of the pulmonal trunk and gender-related distributions, we found that female patients had higher axial diameters than men. Another weak relationship, almost zero, was found between the D-dimer level and gender. Regarding the correlation between the uni-or bilateralism of thromboembolism and the D-dimer levels, we also found a weak correlation. Conclusions: This retrospective study showed that D-dimer levels, the diameter of the pulmonal trunk, the location, and gender-related distributions have almost no correlation and are not significantly predictive in imaging.

Ein Fall aus der Höhenmedizin AnamneseEin 15-jähriger Junge (Tourist), in gutem Gesundheitszustand, zeigte eine schleichende, innerhalb von 2-3 h auftretende und fortschreitende Dyspnoe am Anfang des Urlaubs beim Skifahren auf einem Gletscher im Schnalstal (über 2000 m ü. d. Meeresspiegel). Klinischer BefundDer Patient wurde wegen akut aufgetretenen Fiebers, Husten, starken Kopfschmerzen mit Atemnot und auffälligen weißen, schaumigem Auswurfs von der Skipiste per Hubschrauber in die Notaufnahme gebracht. Noch im Hubschrauber Abb. 1 8 Bilaterale multiple, vorwiegend perihiläre, vaskuläre und interstitielle Konsolidierungen, deutlicher auf der linken Seite ausgeprägt (weiße Pfeile). Normaler Herzschatten Abb. 2 8 Lungenparenchym-Fenster axial mit bilateralen multiplen, vorwiegend perihilären, vaskulär-interstitiellen Konsolidierungen (oranger Pfeil)

Purpose: To compare gross tumour volume (GTV) in oropharynx carcinomas using different intelligent imaging software and to evaluate which method is more reliable for tumour volume definition in comparison with 3D ProSoma software. Material and methods: We retrospectively studied 32 patients with histopathologically confirmed oropharynx carcinomas on dual-source computed tomography (CT) (all patients underwent multislice CT examination after applying 75 ml iodinated non-ionic contrast media). One radiologist calculated the tumour volume-manually measuring tumour length (L), width (W), and height (H)-and then calculated the tumour volume using the formula 0.5236 × L × W × H. The other radiologist used the syngo.CT-Liver-Analysis software to calculate the tumour volumes. Both volume measuring methods were compared with the 3D ProSoma software, which is used by radiotherapists to calculate tumour volumes. Graphpad Prism software was used for statistical data. Results: syngo.CT-Liver-Analysis software for gross tumour volume determination has greater reliability than the standard manual method with Syngo Plaza in comparison with the 3D ProSoma software. Conclusions: syngo.CT-Liver-Analysis software is a reliable tool for GTV calculation, with a high correlation score, like that of radiotherapeutic 3D ProSoma software.

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