| Japanese |
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| Title | エルゴノビン負荷による冠動脈び漫性収縮の意義 - 過呼吸負荷心筋シンチグラムを用いた検討 - |
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| Subtitle | 原著 |
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| Authors | 片村真紀*, 松室明義*, 玉垣栄*, 的場聖明*, 辻光*, 北村誠*, 宮尾賢爾*, 村田稔** |
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| Authors(kana) | |
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| Organization | *京都第二赤十字病院内科, **放射線部 |
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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 | 479-486 |
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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」過呼吸負荷201Tl心筋シンチグラフィを用い, エルゴノビン負荷冠動脈造影法におけるび漫性冠動脈収縮症例の虚血の有無を検討した. spasm陽性14例中13例(92.9%)に陰影欠損を認め11例に再分布を示した. 50%以上のび漫性収縮例では14例中9例(64.3%)に陰影欠損を認め, 全例で再分布を示したが, spasm陰性例では陰影欠損の出現は1例(10.0%)にすぎなかった. さらにSPECT短軸像から左室心筋を9分割し, 各分画のminimum washout rate(WOR) meanを求め, Planar像における肺心筋タリウム摂取比の負荷時と再分布時の変化率(ΔL/H%)と共に対比検討した. び漫性収縮症例におけるminimum WOR meanとΔL/H%はいずれもspasm陰性例に比し有意に低値を示し(p<0.001), spasm陽性例に近い値を示した. び漫性収縮症例における心筋灌流低下の可能性が示唆され, 加療の対象となり得ると思われた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Diffuse coronary vasoconstriction, Hyperventilation thallium-201 image, Ergonovine. |
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| English |
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| Title | Clinical Significance of Diffuse Vasoconstriction of Coronary Arteries - A Study Using Hyperventilation Thallium-201 Myocardial Imaging - |
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| Subtitle | Original Articles |
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| Authors | Maki KATAMURA*, Akiyoshi MATSUMURO*, Sakae TAMAGAKI*, Satoaki MATOBA*, Hikari TSUJI*, Makoto KITAMURA*, Kenji MIYAO*, Minoru MURATA** |
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| Authors(kana) | |
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| Organization | *Department of Medicine, **Department of Radiology, Kyoto Second Red Cross Hospital |
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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 | 479-486 |
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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 | Hyperventilation Thallium-201 imaging was evaluated for the examination of the existence of ischemia in the cases of diffuse vasoconstriction under the ergonovine maleate provocative test for coronary artery. Transient myocardial perfusion defect (PD) was demonstrated in 14 patients with ergonovine induced vasospasm (group S), and 13 of these patients also demonstrated redistribution (RD)(92.4%). In 14 patients with diffuse vasoconstriction (group D), nine demonstrated PD, and all of them revealed RD. On the other hand, only one of ten (10%) patients demonstrated PD and RD in a group of patients without spasm or diffuse vasoconstriction (group N). In addition, the left ventricular myocardium was divided into nine segments on a SPECT image, and the mean minimum washout rate (WOR) of each segment was evaluated. These values were compared with the percent change of the lung/heart ratio between early and delayed images (ΔL/H%). Both the mean minimum WOR mean and ΔL/H% of group D were significantly smaller than that of group N(p<0.001), and only approximated to group S. Thus, the possibility of myocardial ischemia of diffuse vasoconstrictive coronary artery is implicated and such patients are supposed to be treated medically as vasospastic angina. |
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| Practice | Clinical medicine |
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| Keywords | Diffuse coronary vasoconstriction, Hyperventilation thallium-201 image, Ergonovine. |
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