| Japanese |
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| Title | 頭頸部のradioisotopic lymphographyの基礎的検討 |
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| Subtitle | 原著 |
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| Authors | 仙田宏平*, 金子昌生**, 佐々木常雄* |
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| Organization | *名古屋大学医学部放射線医学教室, **浜松医科大学医学部放射線医学教室 |
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| Journal | 核医学 |
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| Volume | 18 |
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| Number | 9 |
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| Page | 1199-1205 |
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| Year/Month | 1981/11 |
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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」 頭頸部のradioisotopic lymphographyの画質ならびにリンパ管および節の描出能に関して, シンチカメラと3種類の放射性コロイド, すなわち, 198Auコロイド, 99mTcフチン酸および99mTc-Reコロイドを用い, 検査術式面から基礎的検討を行った. その結果, 頭頂部頭皮への皮内注射はバックグラウンドとなる残留放射能の影響を少なくできた. また, 頭頂部の左右2か所への注射は耳下腺または耳介後リンパ節への輸入リンパ管とこれらリンパ節から鎖骨上窩リンパ節までを左右対称的に描画できた. 輸入リンパ管は注射後10分ごろ, またリンパ節は3 〜 6時間に最も明瞭に描画された. 注射放射能当たりのリンパ節への集積量比は198Auコロイドが最も高かったが, 個々のリンパ管および節を高い集積計数率で明瞭に描画するうえに99mTc-Reコロイドが最も適当であった. しかし, 99mTc標識コロイドでは, 注射放射能の数%以上が注射後早期に血中へ直接的に移行する欠点を認めた. |
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| Practice | 臨床医学：一般 |
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| Keywords | radioisotopic lymphography, cervical lymph-node, intracutaneous injection into the scalp, 99mTc-Re colloid. |
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| English |
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| Title | Fundamental Study on Radioisotopic Lymphography of the Head and Neck |
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| Subtitle | Original Articles |
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| Authors | Kouhei SENDA*, Masao KANEKO**, Tsuneo SASAKI* |
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| Authors(kana) | |
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| Organization | *Department of Radiology, School of Medicine, Nagoya University, **Department of Radiology, School of Medicine, Hamamatsu University |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 18 |
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| Number | 9 |
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| Page | 1199-1205 |
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| Year/Month | 1981/11 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Cervical lymph-node scintigraphy heretofore has been considered little useful clinically because of not only easy confidence in palpating the node but also poor quality of the image. It was the purpose of this study to evaluate and improve methodologically the quality of the image. The image was obtained by a scinticamera and three kinds of radiocolloid, 198Au colloid, 99mTc-phytate and 99mTc-Re colloid. Intracutaneous injection of radiocolloid into the parietal scalp was able to take the image of the cervical node under a little influence of radioactivity remaining in the injection site because the site was significantly distant from the node and easily covered by a lead plate. Injecting the same radioactivity bilaterally into the scalp demonstrated symmetrically bilateral parotide or retroauricular node and its afferent vessel at about ten minutes and then this node to bilateral supraclavicular node in one to six hours after injection in patients with no evident lesion of the node. And, difference of accumulated counts in the region of interest between both chains of these nodes was 12% on the average. Image of the node was obtained more clearly in three to six hours than at one though the time-activity curve of the neck revealed a peak in one hour after injection. Leakage of the agent out of the injection site was reduced to as lower as 3% of injected dose by means of skillful injection. Direct infusion of the agent into blood flow was recognized, so that image of the liver was demonstrated by either kind of radiocolloid, especially 99mTc-phytate, immediately after injection. A simultaneous injection of hyaluronidase, a tissue diffusing factor, enhanced slightly uptake of the agent in the lymph-node but it was not significant statistically (p < 0.05). Using reasonable dose, 99mTc-Re colloid obtained high accumulated count in the region of the node and showed the best quality of image in demonstrating the vessel and node separately and widely. |
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| Practice | Clinical medicine |
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| Keywords | radioisotopic lymphography, cervical lymph-node, intracutaneous injection into the scalp, 99mTc-Re colloid. |
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