Japanese
Title肥大型心筋症の形態診断における心電図同期201Tl心筋single photon emission computed tomographyの有用性の検討
Subtitle原著
Authors二神康夫*, 浜田正行*, 市川毅彦*, 小西得司*, 中野赳*, 竹沢英郎*, 竹田寛**, 前田寿登**
Authors(kana)
Organization*三重大学医学部第一内科, **放射線科
Journal核医学
Volume20
Number5
Page633-640
Year/Month1983/6
Article原著
Publisher日本核医学会
Abstract「要旨」肥大型心筋症を非観血的に形態診断するため, 心電図同期201Tl心筋single photon emission computed tomography (gated SPECT) を施行し, 心エコー図, 左室造影と比較して, 本法の有用性を検討した. 対象は肥大型心筋症23 (12) 例, 健常者8 (2) 例で, ( ) 内はgated SPECT施行例である. Gated SPECTデータの収集は, 201Tl 3.0 mCi静注後, 回転対向型γカメラを用い, RR間隔を6〜10分割するMUGA法で, 360°方向からのデータを, 収集時間45〜60分で, 64×64 matrixに行った. 次に体軸横断々層像を再構成し, この像を基に各方向の断層像を作成し形態診断に用い, また壁厚測定には, 真の左室長軸に直交する短軸断層像を用いた. 壁肥厚の部位と拡がりは, non-gated SPECTでも十分把握できたが, gated SPECTでより鮮明に描出でき, 左室内腔形態は左室造影所見と近似していた. またgated SPECTより求めた中隔, 自由壁厚値は, 心エコー図より求めた値とよい相関が認められた.
Practice臨床医学:一般
KeywordsHypertrophic cardiomyopathy, ECG-gated 201Tl myocardial SPECT, Oblique angle correction
English
TitleECG-gated Single Photon Emission Computed Tomography for Thallium-201 Myocardial Imaging in Patients with Hypertrophic Cardiomyophathy
Subtitle
AuthorsYasuo FUTAGAMI*, Masayuki HAMADA*, Takehiko ICHIKAWA*, Tokuji KONISHI*, Takeshi NAKANO*, Hideo TAKEZAWA*, Kan TAKEDA**, Hisato MAEDA**
Authors(kana)
Organization*First Department of Internal Medicine and **Department of Radiology, Mie University School of Medicine
JournalThe Japanese Journal of nuclear medicine
Volume20
Number5
Page633-640
Year/Month1983/6
ArticleOriginal article
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
Abstract[Summary] The purpose of this study is to evaluate the clinical usefulness of ECG-gated single photon emission computed tomography for Tl-201 myocardial imaging (SPECT) in the diagnosis of hypertrophic cardiomyopathies. Using a rotating dual-gamma camera system (TOSHIBA GCA-70-A-S), SPECT was performed in 23 HCM and 8 normal cases, including 12 and 2 cases with ECG-gated acquisition, respectively. After i.v. injection of 3.0 mCi of Tl-201, non-gated SPECT data were collected for 6 minutes, and thereafter gated SPECT data were collected for total sampling time of 45 to 60 minutes by MUGA method for 6-10 frames/cardiac cycle. Transaxial tomographic image was reconstructed and the oblique angle tomographic imaging along the LV long axis was also done according to Borrello's method. Location and extent of localized LV wall thickening were clearly visible, especially by gated SPECT. LV cavity form in gated SPECT image was highly coincident with that of LVG. LV wall thickness measured by oblique angle tomographic image of gated SPECT was well correlated with that by UCG. (r=0.812, p<0.001) In summary, despite rather long acquisition time (45 to 60 minutes), our gated SPECT method was available for clinical use to diagnose hypertrophic cardiomyopathy.
PracticeClinical medicine
KeywordsHypertrophic cardiomyopathy, ECG-gated 201Tl myocardial SPECT, Oblique angle correction

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