| Japanese |
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| Title | 心筋SPECT像のステレオ・ビュウ表示と定量解析法 |
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| Subtitle | 原著 |
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| Authors | 外山比南子*,○, 松田宏史**, 村田啓**,□, 秋貞雅祥* |
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| Organization | *筑波大学臨床医学系放射線, ○虎の門病院顧問, **虎の門病院放射線科, □沖中記念成人病研究所 |
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| Journal | 核医学 |
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| Volume | 24 |
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| Number | 7 |
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| Page | 983-990 |
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| Year/Month | 1987/7 |
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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」Tl-201による心筋SPECT(Single Photon Emission CT)の3次元立体表示(STEREO-VIEW:STV)法を開発し, 心筋虚血の定量的評価および表示を試みた. 負荷直後(early:EX)および4時間後(delayed:DS)の短軸断層像を作成し, 心尖部から心基部までを10断面に分割した. 等計数法により各断面ごとに輪郭を求めファイル(SL)を作成した. 各断面を51等分して求めた各領域の平均計数, wash out rate(WR)を濃度分布ファイル(CL)に納めた. SLファイルを使ってwire frame表示し, その表面をCLファイルの値に応じ色づけし, STV表示とした. 正常者11例から各領域の平均計数, 平均WRおよびそれぞれの標準偏差(SD)を算出し, 正常下限値を設定した. 労作性狭心症例において, 各部位ごとに正常下限値と比較, その差をSTV表示した. 下限値以下の領域数およびその値の総和から虚血域の広がりと程度を算出した. |
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| Practice | 臨床医学：一般 |
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| Keywords | SPECT, 3-D display, 201-Tl myocardial imaging, Wash out rate, Effort angina pectoris. |
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| English |
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| Title | A Method for Quantitative Evaluation of Myocardial SPECT Images with Three Dimensional Display - STEREO-VIEW - |
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| Subtitle | Original Articles |
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| Authors | Hinako TOYAMA*, Hirofumi MATSUDA**, Hajime MURATA**, Masayoshi AKISADA* |
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| Organization | *Institute of Clinical Medicine, Tsukuba University, **Division of Nuclear Medicine, Toranomon Hospital |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 24 |
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| Number | 7 |
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| Page | 983-990 |
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| Year/Month | 1987/7 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] A method for quantitative three dimensional display-STEREO-VIEW (STV)- of myocardial images with single photon emission CT (SPECT) was developed and applied on the clinical study in cases of effort angina pectoris (AP). Contour lines for outer edge of myocardium were detected automatically from the slices of short axial images and recorded into the contour line file (SL) after smoothing. A slice was devided into 51 sectors. The mean counts of the sectors were calculated for the images of early and delayed studies and recorded into contents file (CL). Wash out rate was also recorded into CL file. STV display was done by painting the surface of the wire frame, depicted with SL file. Various colors were coded quantitatively according to the value in the CL file. In the case of effort AP, the differences of wash out rate from normal lower limited values in each sector, which were calculated from 11 normal control images, were depicted on STV. Sectors which have a negative difference value are considered to be abnormal for which the area and volume (sum of the value) are also calculated. In this method extent of stress induced ischemia can be visualized quantitatively on a real representation of heart. |
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| Practice | Clinical medicine |
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| Keywords | SPECT, 3-D display, 201-Tl myocardial imaging, Wash out rate, Effort angina pectoris. |
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