巻号一覧
32 巻, 2 号
選択された号の論文の7件中1～7を表示しています
- |<
- <
- 1
- >
- >|
-
高瀬 裕志, 外山 三智雄, 江口 徹, 前多 一雄1992 年 32 巻 2 号 p. 55-60
発行日: 1992/07/15
公開日: 2011/09/05
ジャーナル フリーComputed tomography (CT) has been widely used in the investigation of salivary disease. The purpose of this article is to discuss the differential diagnosis of masses in the salivary gland using CT.
Seventeen patients with a palpable mass in parotid or submandibular gland were studied. The lesions included eleven pleomorphic adenomas, one Warthin's tumor, one oncocytoma, one lymphadenitis and three cases of adenocarcinomas.
CT scans were performed in the axial projection with contiguous 5-mm-thick slices. An initial 50-ml bolus of iohexol (Omnipaque 300) was administered to the patient intravenously followed by a continuous contrast medium drip infusion.
Enhancement ratio (E. R.) and Standard deviation ratio (S. D. R.) were defined. E. R. ranged from 0.5 to 2.0 in parotid masses and 0.8 to 1.9 in submandibular ones. S. D. R. varied from 0.2 to 5.2 and 0.1 to 6.3 respectively. Either E. R. or S. D. R. exhibited high value in each malignant tumor. E. R. and S. D. R. may be useful parameters in detecting the malignancy of a salivary gland mass.抄録全体を表示PDF形式でダウンロード (2615K) -
西山 秀昌, 速水 昭宗, 徳岡 修, 渕端 孟1992 年 32 巻 2 号 p. 61-66
発行日: 1992/07/15
公開日: 2011/09/05
ジャーナル フリーThe purpose of this study is to visualize a mathematical human phantom with internal organs and absorbed dose distribution in the phantom as three-dimensional computer graphics (CG).
Each organs of modified GSF* mathematical phantom were displayed as a set of three-dimensional transparent color objects by the ray-tracing method.
Three-dimensional dose distribution data were calculated using Monte Carlo Method. After gray scale modification, the data were displayed with brightness for themselves or superimposed on the phantom image.
By our ray-tracing program, it took about three hours to obtain the image of the phantom head and its organs. It only took a few minutes, however, to re-display the image data on the hard disk. It was suggested that this display system was effective for education and checking algorithms of the Monte Carlo simulation.
*Gesellschaft für Strahlen and Umweltforschung抄録全体を表示PDF形式でダウンロード (2369K) -
小松 久高, 若狭 亨, 吉原 史郎, 上村 勝人, 杉原 良枝, 秋田 和俊, 岸 幹二1992 年 32 巻 2 号 p. 67-73
発行日: 1992/07/15
公開日: 2011/09/05
ジャーナル フリーThe radiographic examination of 8526 patients revealed the presence of 92 cases of calcifications in the soft tissue of the head and neck. The examinations were made from April 1982 to June 1986 at Okayama University Hospital attached to Dental School. The purpose of this study wass retrospectively to evaluate the clinical radiographic features of these calcified lesions.
The results are as follows;
1. The most frequent calcifications in the submandibular region were sialoliths and phleboliths were found most frequently in the cheek areas.
2. In the cases of sialoliths, two-thirds had only one calcified body per person. More than two calcified bodies were mostly found in the cases with phleboliths or calcifications of lymph nodes.
3. Layer or eyeball-like patterns were mostly found in the cases of phleboliths with the size more than 2mm in a short diameter. Homogeneous, mottled or small nuclear patterns predominated in the cases of sialoliths.
4. Calcifications of lymph nodes with more than 2mm in a short diameter showed irregular shape and border as compared with sialoliths and phleboliths.抄録全体を表示PDF形式でダウンロード (4003K) -
中村 太保, 足利谷 美砂, 佐藤 正治, 林 孝文, 中山 均, 佐々木 富貴子, 伊藤 寿介1992 年 32 巻 2 号 p. 74-81
発行日: 1992/07/15
公開日: 2011/09/05
ジャーナル フリーIn the radiotherapy of tongue cancer interstitial radiotherapy is the most common as the first choice of treatment of early lesions because of the superiority in its treatment results and conservation of function.
However, in the locally advanced cases with/without neck node metastases the ways of treatment were controversy.
In the present report two cases of tongue cancer with neck metastases at the first visit were treated by interstitial radiotherapy. The lesions were well controlled on the primary site of the tongue by interstitial radiotherapy in both cases.
In the first case the patient had a fixed neck node metastasis and was done the interstitial radiotherapy and then the radical neck dissection followed by external radiotherapy of 60.5 Gy.
In the second case the patient had multiple neck node metastasis and was done the interstitial radiotherapy and then the radical neck dissection followed by external radiotherapy of 50.4 Gy. The patient of the first case was surviving more than 4 years after interstitial radiotherapy. The patient of the second case was died 1 year 5 months later after interstitial radiotherapy because of the contralateral neck node metastasis.
These results suggested a course of interstitial radiotherapy and radical neck dissection followed by postoperative radiotherapy were effective for the treatment of advanced tongue cancers but the effect of some factors of total dose, field size and so on need further to be determined for maximum control of the tumors with a minimum of complications.抄録全体を表示PDF形式でダウンロード (7739K) -
1992 年 32 巻 2 号 p. 82-83
発行日: 1992/07/15
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (207K) -
1992 年 32 巻 2 号 p. 84-98
発行日: 1992/07/15
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (2356K) -
1992 年 32 巻 2 号 p. 99-114
発行日: 1992/07/15
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (2285K)
- |<
- <
- 1
- >
- >|