Published by Misasa Medical Center, Okayama University Medical School
Published by Misasa Medical Center, Okayama University Medical School

<Formerly known as>
岡大三朝分院研究報告 (63号-72号) 環境病態研報告 (57号-62号)
岡山大学温泉研究所報告 (5号-56号) 放射能泉研究所報告 (1号-4号)

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Correlation between low attenuation area (LAA) of the lungs in high-resolution computed tomography (HRCT) and mean CT number in bronchial asthma

光延 文裕 岡山大学医学部附属病院三朝分院内科 Kaken ID publons researchmap
芦田 耕三 岡山大学医学部附属病院三朝分院内科 Kaken ID researchmap
御舩 尚志 岡山大学医学部附属病院三朝分院内科
保崎 泰弘 岡山大学医学部附属病院三朝分院内科
柘野 浩史 岡山大学医学部附属病院三朝分院内科
岡本 誠 岡山大学医学部附属病院三朝分院内科
岩垣 尚志 岡山大学医学部附属病院三朝分院内科
山本 和彦 岡山大学医学部附属病院三朝分院内科
谷崎 勝朗 岡山大学医学部附属病院三朝分院内科
中井 睦郎 岡山大学医学部附属病院三朝分院放射線室
穐山 恒雄 岡山大学医学部附属病院三朝分院放射線室
長谷川 晴巳 鳥取市民病院内科
抄録
The maximal percent low attenuation area < -950 HU (% LAA) among three anatomic lung levels on high resolution computed tomography (HRCT) was examined in patients with asthma, classified by the degree of % LAA, in relation to the mean CT number, % FVC of the predicted value, and FEV 1/FVC (FEV1%). 1 . The mean CT number was closely related to the degree of % LAA of the lungs. The mean CT number was significantly lower in patients with high % LAA (mean CT number-915.3HU, % LAA 37.6%) than in those with low % LAA (-852.9HU, 4.7%). 2. The FEV1% value was significantly lower in patients with high % LAA (47.8%) than in those with low % LAA (62.2%)(p<0.05). The % FVC value was also significantly lower in patients with high % LAA (77.1%) compared to the value in those with low % LAA (101.2%). The results suggest that a large volume of LAA<-950HU of the lungs can be observed in patients with asthma, and the % LAA is closely correlated with mean CT number and the values of FEV1% and % FVC.
キーワード
bronchial asthma
% LAA
mean CT number
FEV1
FVC
ISSN
0918-7839
NCID
AN10430852
NAID