| Japanese |
|---|
| Title | 心プールSPECTからの左室立体構成と3次元左室壁運動解析の試み |
|---|
| Subtitle | 《研究速報》 |
|---|
| Authors | 山下敬司*, 田中雅人**, 浅田尚紀*, 松下照雄**, 長谷川喜也**, 前田尚利*, 石井靖*, 石原浩***, 李鍾大**** |
|---|
| Authors(kana) | |
|---|
| Organization | *福井医科大学医学部放射線科, **放射線部, ***第二外科, ****第一内科 |
|---|
| Journal | 核医学 |
|---|
| Volume | 24 |
|---|
| Number | 5 |
|---|
| Page | 559-563 |
|---|
| Year/Month | 1987/5 |
|---|
| Article | 報告 |
|---|
| Publisher | 日本核医学会 |
|---|
| Abstract | 「I. はじめに」近年心臓核医学でも3次元解析が応用されている. 心電図同期心プールSPECT(GECT)は, 心臓の各分画の周期的な動きを立体的に保有しており, 左室をはじめとする心臓の各分画の3次元解析が可能である. また, 立体化することにより, 左室壁運動の基点をその立体的中心において解析を行うことが可能となる. われわれはGECTから左室を立体構成し, その拡張終期体積重心を基点とした左室3次元壁運動解析を行った. 「II. 対象」心筋梗塞例でGECTを施行された症例のうち左室造影も行われたものを対象とした. 「III. 方法」[1. データ収集]99mTc標識赤血球20mCi静注約20分後GECTを施行した. ガンマカメラ(東芝製GCA-90A)を9度ごとにLPOよりRAOまで180度回転させ計20方向のデータを収集した. 収集時間は1方向50秒で合計約20分であった. |
|---|
| Practice | 臨床医学：一般 |
|---|
| Keywords | Gated blood pool study, Three-dimensional analysis, Myocardial infarction. |
|---|
| English |
|---|
| Title | Left Ventricular Three-Dimensional Reconstruction and Three-Dimensional Wall Motion Analysis from Gated Blood Pool Emission Computed Tomography |
|---|
| Subtitle | Rapid Communication |
|---|
| Authors | Keiji YAMASHITA*, Masato TANAKA*, Naoki ASADA*, Teruo MATSUSHITA*, Yoshiya HASEGAWA*, Hisatoshi MAEDA*, Yasushi ISHII*, Hiroshi ISHIHARA**, Soundai RI*** |
|---|
| Authors(kana) | |
|---|
| Organization | *Department of Radiology, **Second Department of Surgery, ***First Department of Internal Medicine, Fukui Medical School |
|---|
| Journal | The Japanese Journal of nuclear medicine |
|---|
| Volume | 24 |
|---|
| Number | 5 |
|---|
| Page | 559-563 |
|---|
| Year/Month | 1987/5 |
|---|
| Article | Report |
|---|
| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
|---|
| Abstract | A new method of three-dimensional (3-D) wall motion analysis from gated blood pool emission computed tomography (GECT) has been developed and applied to estimation of left ventricular (LV) wall motion abnormalities in patients with myocardial infarction. Twenty projection GECT data were collected from LPO to RAO covering anterior 180 degree. Each cardiac cycle was divided into 16 frames. LV boundaries were detected by 70% threshold of LV maximal count and 3-D LV shape was reconstructed. Based on the length from LV boundaries to end-diastolic LV center of mass, 3-D percent shortening and phase of the first harmonic were calculated. These parameters were displayed on 3-D functional images. 3-D percent shortening image clearly demonstrate 3-D extent of dyskinesis as well as akinesis and hypokinesis. Phase of abnormal LV wall motion area was delayed more than volume phase. These methods are useful for 3-D understanding and quantitative analysis of LV wall motion abnormalities. |
|---|
| Practice | Clinical medicine |
|---|
| Keywords | Gated blood pool study, Three-dimensional analysis, Myocardial infarction. |
|---|