Japanese
Title心室興奮伝播異常例における断層Phase Imageの有用性
Subtitle原著
Authors桜井充*, 渡辺佳彦*, 近藤武*, 金子堅三*, 加藤善久*, 桐山卓三*, 黒川洋*, 菱田仁*, 水野康*, 江尻和隆**, 竹内昭**, 古賀佑彦**
Authors(kana)
Organization*藤田学園保健衛生大学内科, **放射線科
Journal核医学
Volume22
Number11
Page1661-1670
Year/Month1985/11
Article原著
Publisher日本核医学会
Abstract「要旨」 心室興奮伝播異常例の位相を三次元的に評価することを目的として心断層phase imageを作製し, その有用性を検討した. 正常7例, 心室ペーシング12例, 脚ブロック21例, WPW症候群12例を対象とし, 平衡時心電図同期法にて左前斜位と右前斜位のplanar像と7ピンホールコリメータを用いた短軸断層像のphase imageを作製し, 両者を対比した. ペーシング例で同定した電極挿入部は, planar像では8例, 断層像では11例でX線所見と一致した. 左軸偏位を伴う完全右脚ブロック例では, planar像から検出困難であった左室前壁の位相の遅れを断層像では6例中5例で検出できた. WPW症候群では左前斜位のplanar像では8例, 断層像では心基部断面に10例で副伝導路を同定できた. また, 断層像により各症例の長軸方向の位相の推移を判定できた. 断層phase imageはplanar phase imageからは得られない情報を提供し, 興奮伝播異常例の検討に有用であった.
Practice臨床医学：一般
KeywordsTomographic phase image, Sevenpinhole collimator, Ventricular conduction abnormalities
English
TitleUsefulness of Tomographic Phase Image in Ventricular Conduction Abnormalities
Subtitle
AuthorsMitsuru SAKURAI*, Yoshihiko WATANABE*, Takeshi KONDO*, Kenzo KANEKO*, Yoshihisa KATO*, Takuzo KIRIYAMA*, Hiroshi KUROKAWA*, Hitoshi HISHIDA*, Yasushi MIZUNO*, Kazutaka EJIRI**, Akira TAKEUCHI**, Sukehiko KOGA**
Authors(kana)
Organization*Department of Internal Medicine, **Department of Radiology, Fujita-Gakuen Health University School of Medicine
JournalThe Japanese Journal of nuclear medicine
Volume22
Number11
Page1661-1670
Year/Month1985/11
ArticleOriginal article
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
Abstract[Summary] In order to evaluate three-dimensional phase changes in ventricular conduction abnormalities, tomographic phase images were constructed in 7 normal subjects, 12 patients with ventricular pacing, 21 patients with bundle branch block and 12 patients with Wolff-Parkinson-White syndrome. Eight to 12 slices of the short-axis ventricular tomographic phase image (TPI) were derived using a 7-pinhole collimator, and compared with planar phase images (PPIs) in left anterior oblique (LAO) and right anterior oblique (RAO) projections. TPIs were excellent for observing biventricular phase changes in the long-axis direction. In 6 cases of complete right bundle branch block with left axis deviation (beyond -30°) , the phase delay in the left ventricular anterior wall was recognized in 5 cases by TPI, although it was difficult to be detected by PPIs. The site of the pacing electrode was identified by TPI in 11 out of 12 cases, compared to 8 cases by PPIs in LAO and RAO projections. The site of the accessory pathway in Wolff-Parkinson-White syndrome was detected in the basal slice of TPIs in 10 out of 12 cases, compared to 8 cases by PPI in the LAO projection. Therefore, it is obvious that TPIs offer more valid information than PPIs. In conclusion, TPI is useful for investigation of ventricular conduction abnormalities.
PracticeClinical medicine
KeywordsTomographic phase image, Sevenpinhole collimator, Ventricular conduction abnormalities

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