Japanese
Titleタリウム心筋エミッションCTの定量評価 (第2報) 虚血病変の大きさの計測
Subtitle原著
Authors玉木長良*, 児玉秋生*, 米倉義晴*, 千田道雄*, 藤田透*, 向井孝夫*, 田巻俊一**, 鈴木幸園**, 野原隆司**, 神原啓文**, 河合忠一**, 鳥塚莞爾*
Authors(kana)
Organization*京都大学医学部放射線核医学科, **第三内科
Journal核医学
Volume21
Number7
Page823-830
Year/Month1984/7
Article原著
Publisher日本核医学会
Abstract「要旨」運動負荷タリウムエミッションCT(ECT)を心筋梗塞の既往のない虚血性心疾患33例に施行し, 虚血病変の大きさを計測した. ECTの左室短軸の3断面および左室長軸の中央の一断面を評価の対象とし, circumferential profile curveから正常下限を下まわる欠損の心筋全周に占める割合(%defect), およびprofile curve上で正常下限を下まわる面積(defect score)を虚血病変の大きさとした. 1枝病変例の%defect(14.7±103%)およびdefect score(98±114)は, 2枝病変例[32.4±11.3%(P<0.005), 239±149(p<0.05)]や3枝病変例[39.7±20.2%(p<0.005), 362±254(p<0.01)]よりも有意に小さかった. 冠動脈を8本に細分した際の冠動脈病変本数と%defectとの間にはr=0.56, defect scoreとの間にはr=0.46の正相関がみられた. また冠動脈病変本数と狭窄の程度を加えたCAG scoreとの間にはおのおのr=0.76, r=0.66の強い正相関が認められた. ECTは虚血病変の大きさを容易に定量評価でき, 冠動脈病変の重症度を判定しうると考えられた.
Practice臨床医学：一般
Keywordsemission computed tomography, thallium-201, ischemic heart disease, quantitative analysis, circumferential profile curve, ischemic size.
English
TitleQuantitative Analysis of Thallium Myocardial Emission CT (2) Evaluation of Ischemic Size
SubtitleOriginal Articles
AuthorsNagara TAMAKI*, Shusei KODAMA*, Yoshiharu YONEKURA*, Michio SENDA*, Toru FUJITA, Takao MUKAI*, Shunichi TAMAKI**, Yukisono SUZUKI**, Ryuji NOHARA**, Hirofumi KAMBARA**, Chuichi KAWAI**, Kanji TORIZUKA*
Authors(kana)
Organization*Department of Radiology and Nuclear Medicine, **Department of Internal Medicine, Kyoto University Medical School
JournalThe Japanese Journal of nuclear medicine
Volume21
Number7
Page823-830
Year/Month1984/7
ArticleOriginal article
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
Abstract[Summary]Stress thallium emission computed tomography (ECT) was performed for quantitative evaluation of ischemic size in 33 cases with ischemic hear disease without prior myocardial infarction. Circumferential maximal-count profile curves were created in three central short-axis sections and one most central long-axis section of the ECT images. Percent defect size was calculated from the ratio of low thallium distribution area, while defect score was calculated as abnormal areas between the patient profiles and the lower limit profiles. Percent defect and defect score were smaller in one-vessel disease (14.7 +- 10.3%; 98 +- 114) than those in two-vessel disease (32.4 +- 11.3% (p<0.005); 239 +- 149 (p<0.05)) and in three-vessel disease (39.7 +- 20.2% (p<0.005); 362 +- 254 (p<0.01)). Percent defect and defect score were correlated with number of vessels involvement (r=0.56 and 0.46, respectively. Furthermore, they were highly correlated with CAG score (r=0.76 and 0.66, respectively). We conclude that stress ECT permits calculation of ischemic size and the parameters of ischemic size may predict severity of coronary artery involvement in ischemic heart disease.
PracticeClinical medicine
Keywordsemission computed tomography, thallium-201, ischemic heart disease, quantitative analysis, circumferential profile curve, ischemic size.

【全文PDF】