| Japanese |
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| Title | パーソナルコンピュータを用いたMR Angiographyと3次元脳血流像の合成画像の作成 |
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| Subtitle | 技術報告 |
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| Authors | 杉山仁作*, 滝鈴佳**, 棚田侯一* |
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| Organization | *市立砺波総合病院放射線技術部, **放射線科 |
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| Journal | 核医学 |
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| Volume | 31 |
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| Number | 11 |
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| Page | 1373-1377 |
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| Year/Month | 1994/11 |
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| Article | 報告 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」MR angiography (MRA) での血管狭窄部位と脳血流低下部位との関係を検討するため, パーソナルコンピュータ上で, MRAと3次元 (3D) 脳血流画像の合成像を作成した. 対象はMRAで頭蓋内の主要血管に閉塞が疑われ, 血管造影で閉塞または90%以上の狭窄が確認されており, MRI上梗塞が認められないか軽度のもの11例である. 局所脳血流の低下は全例に認められ, 前, 中, 後大脳動脈の支配領域の境界 (Watershed領域) に低下を示すものと, これら主要血管の支配領域に広範な低下を示すものとがあり, 3D脳血流画像とMRAの合成像により, 血管狭窄部位と血流低下部位との関係を, 同時に, 立体的に把握することが可能であった. また, パーソナルコンピュータを使用することにより, 高価な装置を必要とせず, 簡便に画像処理を行うことができた. |
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| Practice | 臨床医学：一般 |
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| Keywords | SPECT, Three-dimensional imaging, MR angiography, Superimpose, rCBF |
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| English |
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| Title | Superimposition of MR Angiography and Three Dimensional Radionuclide Brain Perfusion Image with Personal Computer |
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| Subtitle | |
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| Authors | Jinsaku SUGIYAMA*, Suzuka TAKI**, Kimikazu TANADA* |
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| Authors(kana) | |
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| Organization | *Department of Radiotechnology, **Department of Radiology, Tonami General Hospital |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 31 |
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| Number | 11 |
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| Page | 1373-1377 |
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| Year/Month | 1994/11 |
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| Article | Report |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] To investigate the correlation of arterial obstruction with brain perfusion, MR angiography (MRA) and three dimensional (3D) radionuclide brain perfusion image were superimposed. Eleven cases with intracranial artery obstructive patients were studied. Three dimensional brain perfusion images were generated based on the ray-tracing method. Superimposition of MRA on to 3D brain perfusion image was performed on a personal computer. Reconstructing time for 3D image was about 15 minutes for each patient, Superimposing time was about 5 minutes for each image. Correlation of arterial obstruction with decrease in brain perfusion was demonstrated clearly by superimposed image. With a personal computer, it was possible to produce clinically useful synthesized images with relatively short time and conveniently. |
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| Practice | Clinical medicine |
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| Keywords | SPECT, Three-dimensional imaging, MR angiography, Superimpose, rCBF |
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