Only then general recommendations to screen individuals at risk of lung cancer with low-dose CT should be made. It can be hoped that international cooperation will succeed in providing results as early as possible.SDiederichandDWormannsand
While the real-time reverse-transcription polymerase chain reaction test (RT-PCR) is considered the gold standard for the diagnosis of COVD-19, additional low-dose chest computed tomography (LDCT) is often performed, as CT is nearly ubiquitously available for diagnostic of COVID-19 with a high...
however, take days to provide the diagnosis, and false negative rate is relatively high. Imaging, in particular chest computed tomography (CT), can assist with diagnosis and assessment of this disease. Nevertheless, it is shown that standard dose CT scan gives significant radiation...
European Radiology Experimental (2024) 8:63 https://doi.org/10.1186/s41747-024-00459-9 ORIGINAL ARTICLE Open Access Effect of emphysema on AI software and human reader performance in lung nodule detection from low‑dose chest CT Nikos Sourlos1, GertJan Pelgrim1,2, Hendrik...
[Keywords]ChestComputedTomography;Low-dose;BodyMassIndex 随着X-CT等影像设备在临床应用中的不断深化,世界范围内医疗 行为中的医源性放射剂量在不断增加 [4] ,从目前的文献报道中也证实 了患癌症的危险性同辐射剂量之间的线性非阈值关系,人们越来越关 注CT检查的射线剂量给人体可能造成的潜在危害和如何在保证图像...
Symptoms:While many people with stage 2 hypertension might still not experience symptoms, those who do might notice headaches, vision problems, chest pain, difficulty breathing, irregular heartbeat, and fatigue. Dangers:Stage 2 hypertension significantly elevates the risk of cardiovascular diseases like...
Evaluation of a low-dose computed tomography lung cancer screening program in Henan, China. JAMA Netw Open. 2020;3(11):e2019039. doi:10.1001/jamanetworkopen.2020.19039PubMedGoogle ScholarCrossref 17. Huo J, Shen C, Volk RJ, Shih YT. Use of CT and chest radiography for lung...
Subjective image quality was evaluated by two radiologists in a consensus reading (eight and four years of experience in chest CT) using a 5 point Likert scale as previously described13. Non-inferiority of the DE CTPA protocol was defined as a decrease in CNR of less than 5% of the ...
For a chest scan to be considered ‘low-dose’, it should be 2 millisieverts (mSv) or lower, compared to a ‘standard’ lung CT dose of approximately 8 mSv. Scans are considered ‘ultra-low-dose’ if they are <1 mSv; however, these definitions are the subject of debate.41 More ...
Therefore, currently beam filtering should not be used, with radiation dose minimization better achieved through lower tube current with fixed tube voltage at 120 kVp. However, recommendations may vary in different countries and can be optimised by using calibration phantoms for image quality assessment...