| Japanese |
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| Title | 肺気腫患者における99mTc-Technegas SPECTシンチグラフィと高分解能CTとの比較検討 |
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| Subtitle | 原著 |
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| Authors | 佐藤功*, 田邉正忠*, 中野覚*, 西山佳宏*, 高橋一枝*, 小林琢哉*, 川瀬良郎*, 三谷昌弘*, 大川元臣*, 藤田次郎**, 山地康文**, 岡田宏基** |
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| Authors(kana) | |
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| Organization | *香川医科大学放射線科, **第一内科 |
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| Journal | 核医学 |
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| Volume | 32 |
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| Number | 5 |
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| Page | 487-494 |
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| Year/Month | 1995/5 |
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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」近年, 高分解能CTの利用が普及し, 気腫性病変が低濃度領域の認識として, 容易に非侵襲的に把握できるようになった. また最近, 使用可能となった99mTc-Technegasは時間的制限が少なく, 核医学検査の特徴の一つである局所肺機能の把握が可能とされている. 今回われわれは肺気腫患者12症例に対し, テクネガスによるSPECTシンチグラフィ横断像と高分解能CTとの比較検討を行った. テクネガスと高分解能CTの病変描出能, 障害程度は, 4症例で同等, 8症例でテクネガスが高分解能CTより強く描出された. テクネガスは肺気腫での換気障害を, 高分解能CTでの形態的変化より早期に描出させ得ることが推察された. これはテクネガスが末梢肺野領域に加えて, 従来のエロゾルシンチグラフィと同様, 気道の異常をも検出できたためと思われた. |
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| Practice | 臨床医学：一般 |
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| Keywords | 99mTc-technegas, High resolution CT, pulmonary emphysema. |
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| English |
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| Title | Comparison of 99mTc-Technegas Scintigraphy and High Resolution CT in Pulmonary Emphysema |
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| Subtitle | Original Articles |
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| Authors | Katashi SATOH*, Masatada TANABE*, Satoru NAKANO*, Yoshihiro NISHIYAMA*, Kazue TAKAHASHI*, Takuya KOBAYASHI*, Yoshirou KAWASE*, Masahiro MITANI*, Motoomi OHKAWA*, Jiro FUJITA**, Yasufumi YAMAJI**, Hiroki OKADA** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, Kagawa Medical School, **First Department of Internal Medicine, Kagawa Medical School |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 32 |
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| Number | 5 |
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| Page | 487-494 |
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| Year/Month | 1995/5 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | This study was undertaken to assess the usefulness of technetium-99m technegas scintigraphy axial images (technegas) compared with high resolution CT (HRCT) in 12 patients with pulmonary emphysema. All patients were male adult and heavy smokers and their mean age was 65. All patients inhaled 505 MBq technegas in several tidal volume breaths in the supine position without breath holding. SPECT imaging was performed by a Picker model Prism 2000. HRCT was performed after technegas. The technegas images showed different degree of changes from areas of heterogeneity to hot spots or defects. In emphysema, HRCT images showed low attenuation areas varying in size and number. In 4 of 12 patients, the degree of abnormal findings on technegas increased according to the degree of abnormal findings on HRCT. In the remaining 8 patients, however, more detailed findings were shown by technegas than by HRCT. There was no patients in which HRCT showed a greater changes than on technegas. HRCT can demonstrate low attenuation areas, even less than 5 mm in diameter. Moreover previous reports showed that aerosol inhalation would also demonstrate the airway disease. Assessment of the degree of involvement revealed by both methods indicated the superiority of technegas over HRCT. We conclude that technegas can represent the ventilation involvement easily more than HRCT in pulmonary emphysema. |
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| Practice | Clinical medicine |
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| Keywords | 99mTc-technegas, High resolution CT, pulmonary emphysema. |
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