Lung cancer : journal of the International Association for the Study of Lung Cancer
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The Department of Medical Imaging at the University Health Network in Toronto is performing a lung cancer screening study, utilizing low-dose computed tomography (LDCT) as the modality. Baseline and annual repeat results are reported on the first 3352 participants, enrolled between June 2003 and May 2007. ⋯ Data indicate that LDCT can identify small lung cancers in an at-risk population. The diagnostic algorithm results in few false-positive invasive procedures. Most cancers are detected at an early stage, where the cancer is resectable with a greater potential for cure. Long-term follow up of lung cancer cases will be carried out to determine survival.
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Due to state-of-art analytical techniques, non-invasive exhaled volatile organic compounds (VOCs) analysis has become a potential method for early diagnosis of lung cancer. We collected breath samples from 43 patients with non-small cell lung cancer (NSCLC) and 41 normal controls using Tedlar gas bags. The VOCs were extracted with solid phase micro-extraction (SPME) and analyzed by gas chromatography (GC)/mass spectrometry (MS). ⋯ VOCs levels were not significantly different between early stage lung cancer patients and late stage lung cancer patients. Lung adenocarcinoma was significantly related to higher VOCs concentrations in the breath. Our data showed that 1-butanol and 3-hydroxy-2-butanone in breath could possibly be taken as useful breath biomarkers for discerning potential lung cancer patients and VOCs analysis could be used as a complementary test for the diagnosis of lung cancer.