Pulmonary nodules: optimal slice thickness of CT in revealing bronchial imageology  

显示肺结节累及支气管理想CT层厚的初步探讨(英文)

作　　者：Shenjiang Li Changcheng Li Xing Wang Debin Liu Wenjie Liang Feng Zhu Yan Zhu Xuefeng Cui Fangang Hu Yuanyuan Wang 

机构地区：[1]Department of Imageology, The Eighty-eighth Military Hospital, Tai＇an 271000, China

出　　处：《The Chinese-German Journal of Clinical Oncology》2011年第11期626-631,共6页中德临床肿瘤学杂志（英文版）

摘　　要：Objective： The aim of our study was to determine an optimal slice thickness that was efficient in revealing bronchial imageology of pulmonary nodules （PNs） on multi-slice spiral computed tomography （MSCT） images preliminarily. Methods： Fifty-four patients with 62 PNs （diameter 〈 3 cm） underwent multidetector-row computed tomography of the chest in a single-breath-hold technique. The raw data were acquired with a collimation of 0.625 mm. Three sets of contiguous im- ages were reconstructed with 1-, 2-, and 5-mm slice thickness, respectively. Bronchial imageology of SPNs on the CT images presented in 1-, 2-, and 5-mm slice thickness was compared. Using the 1-mm sections as the gold standard, an optimal slice thickness in revealing bronchial imageology of PNs was determined. Results： Bronchial imageology of PNs on the CT images presented in 1 mm slice thickness involved 85 bronchi （35 second-fourth generation bronchi; 50 fifth-eighth generation bronchi）. Bronchial imageology on 2-mm-thick sections was as same as that on I-mm-thick sections in 34 second- fourth generation bronchi. No statistically significant difference in number of second- fourth generation bronchi with same bronchial imageology was found between that on 2-mm-thick images and I-mm-thick images （P = 0.836 〉 0.05）. Bronchial imageology on 5-mm-thick sections was as same as that on 1-mm-thick sections in 24 second-fourth generation bronchi. There was statistically significant difference in number of second-fourth generation bronchi with same bronchial imageology between that on 5-mm-thick images and 1-mm-thick images （P = 0.026 〈 0.05）. Bronchial imageology on 2-mm-thick sections was as same as that on 1-mm-thick sections in 38 fifth-eighth generation bronchi. There was statistically significant difference in number of fifth-eighth generation bronchi with same bronchial imageology between that on 2-mm-thick images and 1-mm- thick images （P = 0.029 〈 0.05）. Bronchial imageology on 5-mm-thick images was as same a

关 键 词：tomography  X-ray computed Coin lesion  pulmonary BRONCHI 

分 类 号：S858.291.5[农业科学—临床兽医学] TH774[农业科学—兽医学]