Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren最新文献

Pneumothorax remains one of the most common complications of computed tomography (CT)-guided lung biopsy, highlighting the importance of investigating contributing factors. This study assessed the interplay between the needle-pleura angle and the biopsy needle traversal duration (NTD) through the lung parenchyma during CT-guided lung biopsies that resulted in pneumothorax.In this retrospective study, 96 patients underwent CT-guided lung biopsies. The minimum delta (δmin) was calculated as the absolute value of the difference between a 90° angle and the measured angles of the needle with respect to the pleura, and correlations with the occurrence of pneumothorax were analyzed. The NTD was recorded from the moment of needle puncture through the pleura until needle retraction. Patients with pneumothorax were grouped on the basis of NTD: < or > 6 minutes. A multivariate analysis was conducted, comparing four patient groups with and without pneumothorax.6 out of 96 patients undergoing CT-guided lung biopsies were excluded because of predefined exclusion criteria. 22 patients experienced postprocedural pneumothorax-6/22 patients had δmin > 10° with NTD > 6 minutes, 5/22 had δmin < 10° with NTD < 6 minutes, 2/22 had δmin > 10° with NTD < 6 minutes, and 9/22 had δmin < 10° with NTD > 6 minutes. Overall, 14.7% of patients with δmin < 10° and NTD < 6 minutes experienced pneumothorax compared with 33.3% of patients with δmin > 10° with NTD > 6 minutes.Optimizing the needle-pleura angle and NTD during a CT-guided lung biopsy can reduce the risk of pneumothorax. · Pneumothorax is the most common complication of lung biopsies.. · Needle angle und needle-traversal duration can affect the incidence of pneumothorax.. · Needle-pleura angle and the needle-traversal duration can reduce the risk of pneumothorax.. · Maalouf N, Abou Mrad M, Benayed R et al. The Interplay of Time and Angle with the Incidence of Pneumothorax in Computed Tomography-Guided Lung Biopsy. Rofo 2025; DOI 10.1055/a-2594-7226.

Coronary calcification, as defined by computed tomography (CT), can be quantified with a score (CAC score). It is an established prognostic and predictive imaging marker of the cardiovascular risk profile. The prognostic relevance of the CAC score has been demonstrated for acute diseases, including the coronavirus disease 2019 (COVID-19) in preliminary studies. The aim of the present study was to prove the prognostic relevance of the CAC score in patients with coronavirus disease 2019.The present study used a nationwide radiological research platform to conduct a multicenter retrospective study. The study included a total of 541 patients, 176 of whom were female (32.5%). The mean age of the patients was 61.2 years ± 15.6 years. The coronavirus (SARS-COV-2) disease was confirmed in all patients by PCR testing. The CAC score was calculated using the Weston score, which is a semiquantitative method. The primary outcome of the study was 30-day mortality.The overall mortality rate within the 30-day period was 21.2%, with 115 patients dying. The mean Weston score was 3.0 ± 3.6. 128 patients (23.7%) exhibited no evidence of coronary calcifications, as indicated by a Weston Score of 0. In the univariable regression analysis, the presence of calcifications was found to be associated with mortality, with an odds ratio of 1.68 (95% confidence interval 1.08-2.59, p=0.01). However, this result did not remain statistically significant in the multivariable analysis (p=0.49). The Weston score was found to be associated with mortality in the univariable analysis, with an odds ratio (OR) of 1.10 (95% CI 1.04-1.14, p < 0.001), and in the multivariable analysis, with an OR of 1.06 (95% CI 1.005-1.138, p = 0.036).The imaging marker CAC score has been demonstrated to have a significant prognostic impact on 30-day mortality in patients diagnosed with coronavirus disease 2019 (COVID-19). It is incumbent upon the radiologist to acknowledge the sole presence of coronary calcifications as a relevant prognostic factor. The prognostic relevance of the calcifications was found to be greater in cases where more extensive calcification was present. · Coronary calcifications assessed by CT are prognostic markers for 30-day COVID-19 mortality.. · Calcification extent has greater prognostic value than the mere presence of calcifications.. · The study highlights the need to integrate coronary calcifications into clinical risk scores.. · Bucher AM, Frodl E, Ehrengut C et al. Prognostic value of CT-defined coronary sclerosis in COVID-19: results of a multicenter study based on the Weston score. Rofo 2025; DOI 10.1055/a-2583-0235.