Assessment of the usefulness of low-dose computed tomography for the diagnosis of pulmonary emphysema.

This work is a literature review based on articles about the topic addressed.It has been reviewed and described CT and their radiation doses in pulmonary emphysema, with works obtained through searching electronic databases. Studies that assess the rate of emphysema detection were included. pulmonary in patients with suspected disease, regardless of its publicationstatus, no restrictions on language, age, sex, severity, subtype, and duration of the disease. Searches for articles were conducted in the following databases: Cochrane Library (Wiley), National Library of Medicine (PUBMED), Elsevier (EMBASE),...

Ohno et al1 in a cross-sectional study using a 320-channel computed tomography device, evaluated 85 patients with pulmonary diseases, 29 of which were patients with pulmonary emphysema, initially using a dose of 13.5 mGy as the standard dose (usual dose), then then they reduced it to 2.7 mGy at 120 kVp. As a result, in the diagnosis of pulmonary emphysema, a high rate of sensitivity (100.0%), specificity (100.0%), and accuracy (100.0%) of standard-dose and low-dose CTs were obtained. in the evaluation by Harder et al2,...

In this study, the detection rate for the diagnosis of pulmonary emphysema using CT with low radiation dose compared with CT with standard radiation dose. We were able to observe that it is possible to obtain a low noise image and good quality, reducing radiation in half for the diagnosis of emphysema pulmonary. Which would provide less radiation absorption by the patient and by the professionals involved. In this way, you can reduce operating costs and possible radiation-induced complications such as neoplasms.

1. Ohno Y, Koyama H, Yoshikawa T, Seki S, Takenaka D, Yui M, et al. Pulmonary high-resolution ultrashort TE MR imaging: Comparison with thin-section standard- and low-dose computed tomography for the assessment of pulmonary parenchyma diseases. J Magn Reson Imaging. 2016 Feb;43(2):512–532. 2. Den Harder AM, de Boer E, Lagerweij SJ, Boomsma MF, Schilham AMR, Willemink MJ, et al. Emphysema quantification using chest CT: influence of radiation dose reduction and reconstruction technique. Eur Radiol Exp. 2018 Nov 7;2(1):30. 3. Kim C, Lee KY, Shin C,...

M. Oliveira da Silva: Nothing to disclose M. L. duarte: Nothing to disclose M. Boccatto: Nothing to disclose