Head and Neck Imaging
Diagnostic Value of Low Dose CT in BAC*
Author：ZHAO Bo, LIU Yong-li, LI Jing-jing
affiliation：Department of CT, the First Hospital of Qinhuangdao, Qinhuangdao 066000, Hebei Province, China
PDFAbstract
Objective To develop the diagnostic level of bronchioloalveolar carcinoma (BAC) by analyzing low dose CT presentations of BAC. Methods 31 cases of BAC confirmed by operation and pathology were retrospectively analyzed. Evaluated findings included the characteristics of lesions morphous, contours and density, lymphadenopathy were also assessed. Results All of the cases presented GGO nodules. 96.7％ of them showed well-defined margin. The rate of lobulated shape, spicule sign and gascontaining space were 93.5％, 57％, 54.8％, respectively and lymphadenopathy in none of these BAC. The image quality of low dose CT were acceptable in the clinical diagnosis. The average ED was (1.29±0.16)mSv. Conclusion BAC had CT features with characteristic. Low dose CT could maintain or improve image quality on chest CT while reducing radiation dose effectively, and had great value in diagnosis of BAC.
【Keyword】Adenocarcinoma, Bronchiolo-alveolar; Tomography, X-ray Computed; Radiation Dose
【Chart number】R734.2
【Document Identification Number】A
【DOI】10.3969/j.issn.1672- 5131.2017.01.019
Chinese journal of CT and MRI
th15Volume， th 1 Issue
2017Year01Month
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