| Japanese |
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| Title | Pursed lip breathingのモデルによる肺局所換気効率の測定について - 133Xe washoutのfunctional imageによる法 - |
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| Subtitle | 原著 |
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| Authors | 駒谷昭夫*, 山口昂一*, 高橋和栄**, 池田英樹***, 高橋敬治*** |
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| Organization | *山形大学医学部放射線科, **付属病院放射線部, ***第一内科 |
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| Journal | 核医学 |
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| Volume | 19 |
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| Number | 10 |
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| Page | 1511-1518 |
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| Year/Month | 1982/12 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」 肺気腫患者が自発的に行うpursed lip breathing (PLB) を模擬する呼気抵抗負荷装置を作った. この装置を133Xeによるfunctional image法に用い, PLBによる局所換気効率の変化を検討した. 133Xeガス6〜7mCiを充てんした閉回路により3分間吸入し, 引き続き7分間の洗い出しを行った. 背面にシンチカメラを設置し, そのデータはコンピュータ (DEC PDP-11/34) に収録した. 局所洗い出し曲線における放射能濃度が半減するまでの時間 (T 1/2), および半減するのに要する呼吸数 (B 1/2) よりfunctional image を作成した. さらに局所換気効率分布をヒストグラムに示し, PLBによる変化を評価した. 呼気抵抗負荷により, 肺気腫患者ではT1/2, B1/2が著明に短縮され, 肺局所換気効率不均等分布が改善された. しかし, 喘息合併肺気腫など, 他の肺疾患例では, T1/2, B1/2は逆に延長する傾向が認められた. 本法は慢性閉塞性疾患などの病態解析やリハビリテーションにおけるPLBの有効性を個々の患者ごとに検討する上できわめて有用な方法と考えられた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Pursed lip breathing, PLB-Model, 133Xe washout functional image, Regional ventilation |
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| English |
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| Title | Measurement of Regional Ventilation under the Condition of "Pursed Lip Breathing" (PLB) with Newly Designed PLB-Model |
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| Subtitle | Original Articles |
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| Authors | Akio KOMATANI*, Koichi YAMAGUCHI*, Kazuei TAKAHASHI**, Hideki IKEDA***, Keiji TAKAHASHI** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, **The 1st Department of Internal Medicine, Yamagata University School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 19 |
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| Number | 10 |
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| Page | 1511-1518 |
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| Year/Month | 1982/12 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] A new device was designed to control the expiratory positive pressure from 0 to 100 mmH2O as a simulation of the "pursed lip breathing" (PLB). Using this device, the effects of PLB to regional ventilation were evaluated. Each patient was examined twice, first in ordinary breathing and second, after 10 to 15 minutes break, in the condition of PLB with the PLB-model. The washin and washout curves of 133Xe gas were recorded by an Anger camera interfaced to the computer system (DEC PDP-11/34 GAMMA-11). Functional images of T1/2 and B1/2 (breath number) on the 133Xe washout curves were adopted as the indices of relative function of the regional ventilation. Histograms of the B1/2 distribution were also adopted to estimate the ventilation about the whole lung. Under the condition of PLB, the regional ventilation was improved in most cases of chronic pulmonary emphysema (CPE) and had a tendency to deteriorate in the case of CPE with asthma and the other lung diseases. This examination with the PLB-model might be available to evaluate the regional ventilation during PLB and follow-up of chronic obstructive lung disease. |
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| Practice | Clinical medicine |
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| Keywords | Pursed lip breathing, PLB-Model, 133Xe washout functional image, Regional ventilation |
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