岡山医学会Acta Medica Okayama0030-155810111-121989Beautiful Bone Scanを呈した胃癌骨転移の1例10751079ENMasahiroKurodaAkioTanakaYoshioYamamotoMitsuharuSimizuNobuoSatoIkuoJojaKeijiHashimotoYoshioHirakiHiroyukiNakadaMasayoshiKibataA 46-year-old female presented with lumbago. A plain X-ray examination did not indicate any distinctive changes, however a bone scintigram showed beautiful bone scan. A bone marrow biopsy certified metastatic adenocarcinoma and a primary gastric carcinoma was discovered subsequently. Beautiful bone scan can be seen in malignant metastasis, several bone metabolic diseases and other rare cases. A rare case of a gastric cancer exhibiting a beautiful bone scan, is described.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-15581009-101988岡山大学放射線科入院患者における肺癌の放射線治療成績の検討951957ENToshiakiNoriyasuYoshioHirakiYoshihiroTakedaHidehumiMimuraMasahikoMitaniMasakoNagayamaShinKimotoMitsumasaKajiKeijiHashimotoKanameAonoThe results of radiotherapy were investigated in 49 patients with lung cancer admitted to the Department of Radiology, Okayama University Hospital. Of the 26 patients not undergoing surgery, the one-year survival rate was 100% in the stage I patients, 55% in the stage Ⅲ patients and 56% in the stage Ⅳ patients, and the two-year survival rate was 50% in the stage I patients, 0% in the stage Ⅲ patients and 9% in the stage Ⅳ patients. A significant difference in survival between patients irradiated with over 60 Gy and patients irradiated with less than 60 Gy was recognized among those not undergoing surgery. However, with respect to the frequency of local recurrence and distant metastases, a correlation with the irradiated dose was not demonstrated. Local recurrence and distant metastases were not observed in 5 of 6 patients who received preventive irradiation after curative surgery was conducted. Concerning 11 patients after non-curative surgery, local recurrence and distant metastases were recognized in 3 of them, and 7 of them showed a favourable outcome brought about by the irradiation after surgery as expected. In 6 patients with local recurrence after surgery, the survival period after radiotherapy was less than 13 months.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558997-81987転移性骨腫瘍の臨床症状10131016ENNobuoSatohHiroyukiUedaTetsuyaNakamuraMasahiroKurodaNorikoKanzakiAkihumiMizutaKiminoriMurakamiIkuoJojaKeijiHashimotoYoshioHirakiKanameAonoThe study included 40 cases of bone metastasis experienced from January 1982 to August 1986 at the Department of Radiology, Okayama University Hospital. The rate of pain Remission was 89.6% in 29 patients given radiotherapy. Increases in serum ALP and LDH were found in a few patients and a quarter of these patients improved after radiotherapy. Serum Ca increased in 5 patients with multiple bone metastases.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558991-21987肺癌脳転移の放射線治療1523ENHidehiroHayashiYoshioHirakiIkuoJojaNaokoKashitaniMasayoshiMiyakeYoshioYamamotoNorikoKanzakiNobuhiroInoueToshiakiNoriyasuKeijiHashimotoYoshihiroTakedaAkihumiMizutaKatsuhikoSugitaKanameAonoWe studied the results of radiotherapy in 65 patients with brain metastases of lung cancer. In the 34 patients whose treatment consisted of radiotherapy alone, the median survival time was 164 days and the mean survival time was 210 days. Remission was achieved in 29 (85%) of these patients, indicating that radiotherapy was effective. A minimum radiation dose of 30 Gy was necessary to decrease neurological symptoms, and 40 Gy or more was considered to be desirable. Survival after radiotherapy appeared to be dependent largely on factors other than brain metastases such as the effectiveness of management of the primary lesion, the presence or the extent of metastases to other organs, and the patient's general condition. Our study suggests that greater efforts must be made for early detection and early treatment to achieve prolongation of as well as qualitative improvements in the survival time.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558987-81986血管芽細胞腫(中川)の放射線治療687695ENYoshioHirakiSetsuoMorimotoNobuoSatohYoshioYamamotoToshiakiShirakamiIkuoJojaShinKimotoKeijiHashimotoKanameAonoYoshitadaNakagiriKenzoArakawaPercent depth dose curves of Lineac electron beam and Dermopan soft X-ray, which are used for radiation therapy of surface tumors, were studied in 2 patients with angioblastoma (Nakagawa) who had been followed up for a long time after radiation therapy. The results are discussed with a review of the literature. Lineac electron beam therapy at low doses that do not cause remote complications appeared to be useful in the treatment of surface tumors selected after careful consideration of the indications.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558983-41986椎骨動脈の石灰化 CT像と臨床症状との対比323330ENKeijiHashimotoShinKimotoToshiakiShirakamiIkuoJojaHidehiroHayashiYoshihiroTakedaIzumiTogamiHarutakaNiiyaHiroyukiUedaMitsuharuShimizuKatsuhikoSugitaYoshioHirakiKanameAonoMitsumasaKajiWe analyzed calcifications in 557 computed tomography films of the head. Adnormal findings of calcification of vertebral arteroes were obrained in 36 of the 577 cases. In the 36 cases, vertigo was observed in 24 cases (66.7%), and brain atrophy in 10 cases (27.2%). The calcification of vertebral arteries (arteriosclerosis) correlated significantly with vertigo. Patients with vertigo should be examined by computed tomography for calcification of vertebral arteries at the level of the foramen magnum.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558981-21986大動脈瘤のMRI4148ENMitumasaKajiIkuoJojaMituharuShimizuTetsuyaNakamuraHiroyukiUedaYoshioYamamotoToshiakiShirakamiShinKomotoKeijiHashimotoSetsuoMorimotoKatsuhikoSugitaYoshioHirakiKanameAonoHatsuzouUtidaShigeruTeramotoAt Okayama University Medical School, the clinical application of magnetic resonance imaging (MRI) started in August 1984, and 16 patients with aortic aneurysm have been imaged by short spin echo (TR400msec, TE40msec) with a Toshiba MRT-15A (resistive type of magnet with a strength of 0.15T).MRI demonstrated the intimal flap and enabled the differentiatian between true and false lumens from the signal intensity. Thrombi were shown with high intensity and were differentiated from fast blood flow, but in some cases clots could not be distinguished from slow flow.MRI in which multiple planes are imaged directly without contrast medium, is a very useful imaging modality for the evaluation of aortic aneurysm.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558979-101985放射線治療を施行した原発性肺癌患者における血清フェリチン値の臨床的評価 ―血清CEA値と比較して―823831ENIzumiTogamiYoshioHirakiShinKimotoToshiakiShirakamiHiroyukiUedaNobuoSatohTetsuyaNakamuraHiromichiYamamotoIkuoJojaKeijiHashimotoSetsuoMorimotoKanameAonoYoshihiroTakedaSerum ferritin and serum carcinogenic embryonic antigen (CEA) levels in 153 patients (male: 112, female: 41) with primary lung cancer were simultaneously measured and compared with the histological type, clinical stage and clinical course. No correlation between serum ferritin and CEA levels was found. A higher percentage of positive test results for both serum ferritin and CEA was associated with advanced stages and metastasis in other organs. From the point of view of histological classification, high ferritin levels were mainly found in the patients with small-cell types of cancer. In contrast, high CEA levels were found in patients with adenocarcinoma. Therefore, the measurement of serum ferritin was not efficient as a screening test for lung cancer. Serum ferritin levels were, however, correlated with the efficacy of therapy and the clinical course.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558975-61985左側下大静脈の一例475480ENKeijiHashimotoShinKimotoIkuoJoujaYoshioYamamotoHiroyukiUedaMitsumasaKajiToshiakiShirakamiYoshioHirakiKanameAonoKatsuhikoSugitaWe found a case of left-sided inferior vena cava(ivc) by chance upon upper abdominal CT examination. Left-sided ivc rarely presents clinical symptoms, but it is necessary to distinguish ivc from abnormal masses such as retroperitoneal tumors or lymphnodal swelling. We discussed left-sided ivc and the literature about it.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558971-21985骨転移放射線治療において骨シンチグラムで病巣範囲決定に問題があった2症例の検討9199ENHiroyukiUedaKeijiHashimotoIkuoJyojaShinKimotoYoshihiroTakedaMitsumasaKajiNobuoSatoTetsuyaNakamuraHiroyukiHinoNaokiKoyamaYoshioHirakiKanameAonoRadiation therapy for bone metastasis of malignant tumors is useful for reducing pain and is often used. Bone scintigraphy is useful for the early detection of bone metastasis and for staging, and is important in making plans for the irradiation of metastatic bone lesions. However, the images of metastatic bone lesions vary, so the irradiation field must be decided by comparison with plain films, computed tomography, and so on.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558971-21985NMR-CTの初期臨床経験101112ENIkuoJojaNobuoSatoMamoruFujishimaMitsumasaKajiIzumiTogamiHarutakaNiiyaToshiakiShirakamiHiromichiYamamotoYoshihiroTakedaShinKimotoKeijiHashimotoSetsuoMorimotoKatsuhikoSugitaYoshioHirakiKanameAonoWe have used an NMR-CT scanner clinically since August 1 1984. We report herein the operating pulse sepuences, and present 5 cases of 226 cases that we have examined. From our clinical experience during the past four months, we describe the advantages and disadvantages of NMR-CT. The advantages are that: 1) it is possible to recognize blood vessels without contrast materials and to evaluate the blood flow 2) there are neither bone nor air artifacts, and 3) it is possible to get the tomogram in any direction. The disadvantages are that: 1) the examination time is very long, 2) there are artifacts from ferromagnetic substances placed in the body, 3) when palse sequence is changed, images are different from each other, and 4) because of respiratory motion artifacts, the images of the chest and abdomen are inferior to those of other parts of the body.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558971-21985各種疾患における血清フェリチン値の臨床的評価5563ENYoshihiroTakedaYoshioHirakiSetsuoMorimotoIzumiTogamiToshiakiShirakamiNoriyukiShiraishiShinKimotoIkuoJojaKeijiHashimotoKanameAonoSerum ferritin levels were determined in 75 hematologic, 1205 malignant, and 538 benign diseases. In hematologic diseases the serum ferritin level was generally low in iron deficiency anemia, but high in hemochromatosis, aplastic anemia, and leukemia. In malignant diseases the serum ferritin concentration was increased remarkably in lung, liver, biliary, and urogential diseases and in malignant lymphoma. Among benign diseases hepatitis cases showed a tendency for high serum ferritin levels. Serum ferritin levels are influenced by various factors, and their careful evaluation may be essential for understanding of the underlining disease process.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-15589611-121984大脳基底核石灰化CT像と臨床症状との対比10531061ENKeijiHashimotoShinKimotoToshiakiShirakamiHarutakaNiiyaMitsumasaKajiIzumiTogamiNaokiKoyamaHiroyukiHinoHiromichiYamamotoYoshioHirakiKanameAonoKishioMatsushimaKatsuhikoSugitaMinoruIrisawaWe investigated the relationship between the frequency of basal ganglia calcification appearing in CT scans and clinical symptoms in 3,599 patients. Basal ganglia were calcified in eleven patients (0.3%), of whom seven had calcification of the bilateral G. Pallidus, but no clinical symptoms. A relationship between calcification and clinical symptoms was shown in two patients under ten years old, a three-year-old with young brain atrophy and a six-year-old with a gonadotropin-producing brain tumor. Especially in patients over forty years old, a direct relationship between G.P. calcification and clinical symptoms was not shown, and calcification was considered to be pyhsilogical.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-15589611-121984電子線振子照射法の検討10631071ENKishioMatsushimaNobuhiroOguriHiroyukiWakasaYoshitadaNakagiriYasutakaMikamiYoshioHirakiShinKimotoKeijiHashimotoKanameAonoWataruFujimotoHajimeKodamaElectron beam therapy of lesions such as cutaneous metastatic carcinoma and reticulum cell sarcoma is performed via multiple portals for a wide irradiation field. However, the dose distribution in border areas is generally uneven, resulting in hot and cold dose areas depending on the intervals of the portals. We performed electron irradiation by the pendulum technique, especially on curved areas, and evaluated the technique in various respects. Pendulum electron beam irradiation is indicated when the length of the cone must be reduced in order to deliver the target volume near the skin surface as well as to avoid the occurrence of hot spots deep in the body. We prepared a 15cm rotating cone by cutting a 30cm fixed irradiation cone. The modification posed no disadvantages in terms of extent and flatness of the beam, or stability during rotation. After determining the relationship between the rotation speed and the dose, the technique was successfully applied to a patient with adult T-cell lymphoma, at a total of 3000cGy.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-15589611-121984電子線moving strip法の試み11751182ENKishoMatsushimaHiroyukiWakasaNobuhiroOguriTakuichiKitayamaYoshitadaNakagiriYasutakaMikamiKeijiHashimotoYoshioHirakiKanameAonoThe fieldsize in electron beam therapy is determined by the cone size. In cases of skin metastasis of a malignant tumor and so on, which need a large field size and whose area is much larger than the size of the cone, a large field size is usually produced by dividing the portals. However, the dose distribution at the border of the field becomes unequal, and hot and cold dose areas are produced according to the distance between portals. We tried the strip field technique in a large field along the long axis of the body in order to flatten the dose of the border employing the moving strip used for whole abdominal irradiation in ovarian cancer. We set the film in Mix-DP and used the strip field technique with 2.5cm steps. We discussed the relationship between the interval (distance between portals) and the flattening of the dose within the field. Skin movement due to breathing and influences on the flattening of the dose were considered. The proper flatness was obtained at depths of 0,1,2, and 3cm by setting the interval at 0.5cm. When skin movement was produced by breathing in ±1.5mm, the proper flaness was obtained also at a 0.5-cm interval. It seems that smoothing is increased by breathing. An "electron beam moving strip" with a 2.5-cm step and 0.5-cm interval was clinically effective in the treatment of patients with skin metastasis of colon cancer.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558937-81981十二指腸球部多発陰影欠損について701708ENYasuoMorinoYoshihiroTakedaSetsuoMorimotoMasayoshiMiyakeHidehiroHayashiHiroshiEzoeShinKimotoIkuoJojaKeijiHashimotoKanameAonoKyoichiHayashiKazukoTakaokaYukikoOshimaMultiple polypoid filling defects of the duodenal bulb are infrequently encountered. Two cases of multiple filling defects of the duodenal bulb are reported in this paper. Case 1. A 42 year old female complained of abdominal fullness and epigastralgia. On examination, generalized peripheral lymphadenopathy and marked hepatosplenomegaly were noted. Cervical lymphnode biopsy revealed a diffuse, poorly-differanciated lymphocytic lymphoma. X-ray examination of the gastrointestinal tract showed multiple filling defects localized at the duodenal bulb. Endoscopy disclosed multiple well-defined protrusions with small mucosal ulceration over the the whole circumference of the duodenal wall. Case 2. A 36 year old female had no subjective symptoms. At gastric mass screening, numerous polypoid elevations of the duodenal bulb were pointed out. Detailed gastrointestinal x-ray examination showed numerous, tiny, round polypoid nodules localized at the duodenal bulb. These nodules were 2-3mm in size with no mucosal ulceration. The endoscopic biopsy specimen revealed lymphoid hyperplasia of the duodenal bulb.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558931-21981膵疾患におけるCT診断6378ENKanameAonoYasuoMorinoToyosatoTamaiHisaoWakabayashiSetsuoMorimotoKeijiHashimotoKatashiSatoIkuoJojaShinKimotoHiroshiEzoeYoshihiroTakedaMasayoshiMiyakeHidehiroHayashiThe diagnosis of pancreatic diseases is difficult and examination techniques such as hypo tonic duodenography, ERSP, and PTC have been used to facilitate this. Computerized tomography (CT) has recently been introduced for the diagnosis of abdominal organs, and grea hopes were held for its application in pancreatic disease. However, according to reports bases on numerous clinical experiments, it is concluded that its value is not so high as expected Therefore, under present conditions, we are obliged to depend on other diagnostic technique which require great skill and cause pain to patients. This report deals with investigation o the image in cases we have experienced.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558929-101980脂質過酸化反応によるミトコンドリァ機能の変化とビスコクラウリン型アルカロイドによる阻害作用10151024ENKanameAonoSetsuoMorimotoKeijiHashimotoKatashiSatoIkuoJojaShinKimotoHiroshiEzoeYoshihiroTakedaMasayoshiMiyakeHidehiroHayashiHisaoWakabayashiToyosatoTamaiYasuoMorinoNoriyukiShiraishiDuring investigation of the changes in mitochondrial function accompanying lipid peroxidation, it was found that a biscoclaurine alkaroid protected their functional changes. The results obtained were as follows: 1) Fe(2+) induces lipid peroxidation of isolated mitochondria, resulting in deterioration of oxidative phosphorylation. 2) This deterioration relates to alteration in ion compartmentation of the mitochondrial membrane and an increase in latent ATPase activity. 3) This deterioration by Fe(2+) in ion compartmentation of mitochondrial membrane is strongly protected by a biscoclaurine alkaloid, cepharanthine. 4) Cepharanthine also inhibits the mitochondrial. lipid peroxidation induced by Fe(2+). 5) The protective effect of cepharanthine against deterioration in mitochondrial functions caused by Fe(2+) depends on its inhibitive action on lipid peroxidation as well as on its membrane stabilizing action. 6) Cepharanthine inhibits the lipid peroxidation of soybean lecithine liposomes by (60)Co-irradiation. 7) The action of cepharanthine described above is common to head to head type of biscoclaurin alkaloids which have diether bonds.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-15589111-121979小児潰瘍性大腸炎の1例14991505ENKazuhikoEharaIkuoJojaKatashiSatoKeijiHashimotoSetsuoMorimotoToyosatoTamaiYasuoMorinoKatsuhikoSugitaYoshioHirakiKanameAonoMasatadaTanabeMichioYamamotoUlcerative colitis in childhood is a rare disease in Japan. A 10-year-old male child was admitted to Okayama University Hospital with a chief complaint of mucous and bloody diarrhea. He had been treated conservatively in another hospital, but the symptoms had not improved. Barium enema examination revealed, from the sigmoid to the transverse colon, abnormal barium coating, numerous small niches, disappearance of the network pattern, and faint spiculations along the margins. Endoscopy demonstrated slight edema, hyperemia, easy bleeding and some purulent secretion. Biopsy specimens showed infiltration of lymphocytes, plasma cells and eosinophilic leucocytes in the mucosa. We made a diagnosis of ulcerative colitis. The patient responded poorly to Salazopyrin and Penicillin, but improved considerably with corticosteroids.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558915-61979肋骨軟骨肉腫の1例555560ENYasuoMorinoSetsuoMorimotoKatashiSatoKeijiHashimotoIkuoJojaToyosatoTamaiKanameAonoMasatadaTanabeHatsuzoUchidaNobuyoshiShimizuA 64 year old male was admitted to the Okayama University Medical School Hospital in June 1976. Although the patient had no subjective symptoms, the chest X-ray film revealed a tumor shadow in the left upper lung field. The tumor shadow was 8×9 cm, well demarcated, and homogenous. In 1969, at the time of an episode of pneumonia, the tumor shadow was 3×3 cm. At operation, the tumor was a chondrosarcoma of rib origin. The chest roentgenograms are described in this report.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558913-41979診断困難であった肺結核と気管支性肺嚢胞の合併症例525531ENYasuoMorinoShinKimotoKatashiSatoKeijiHashimotoKiichiroMizukawaSetsuoMorimotoToyosatoTamaiKanameAonoMasatadaTanabeFumioItagakiNobuyoshiSimizuA 53 year old male was admitted to the Okayama University Medical School Hospital in June 1975 with a history of chronic cough and sputum. The patient had previously undergone treatment for pulmonary tuberculosis for 18 months at another hospital. Roentgenologic examination showed a lobulated mass and fibrotic density in the left upper lung field. Left upper lobectomy was performed. The histopathologic diagnosis was pulmonary bronchogenic cyst with pulmonary tuberculosis in the same segment. In this report, the roentgenological findings and differential diagnosis of pulmonary bronchogenic cyst are described.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558909-101978RI angio-cordiographyによる心疾患の診断 第2編 僧帽弁疾患症例を中心として11451149ENMasatadaTanabeToyosatoTamaiEtsuoKawaseHisaoTakakiKiichiroMizukawaSetsuoMorimotoKeijiHashimotoKatashiSatoKanameAono心疾患を有する患者では,その循環動態は種々の因子により容易に変化するものであり,一回の検査のみで決して正確にその患者の動態を表わしているとはいいがたい.この点コンピューターを用いたRI angio-cardiography(以下RCGと略す)は被曝線量も少く,生理的状態を損うことなく繰返し検査を行うことが出来る非観血的方法であり,心疾患者の術前術後の変化,治療経過観察に極めて有用である.従って,僧帽弁疾患におけるRCGによる右室,左室peak to peak time C(2)/C(1)比の解折は,上述の点後於て重要な臨床情報を提供すると考えられる.今回は僧帽弁疾患を中心としてこれらの点について若干の検討を試みた.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558909-101978RI Angiocardiographyによる心疾患の診断 第3編 左-右シャント症例について11571163ENMasatadaTanabeToyosatoTamaiEtsuoKawaseHisaoTakakiKiichiroMizukawaSetsuoMorimotoKeijiHashimotoKatashiSatoYoshioHirakiCount ratio (C(2)/C(1)) technique for detection of left to right shunts by radionuclide was performed. Count ratio technique of ASD cases accurately detected shunts and could reliably separate from normals, but there were a few false positive in patients with ventricle septal defect. There was no correlation between C(2)/C(1) ratio and oximetry. Postoperatively, C(2)/C(1) ratios of ASD cases were resumed to normal or close to normal but some cases of VSD were not returned to normal.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558907-81978RI angio-cardiographyによる心疾患の診断 第一編 正常例の検討993998ENMasatadaTanabeToyosatoTamaiEtsuoKawaseHisaoTakakiKiichiroMizukawaSetsuoMorimotoKeijiHashimotoKatashiSatoKanameAonoThis study is to show applicability of RCG and to determine criteria for its use of normals. Instrumentation for data processing was DAP 500-2(Toshiba, Ltd, Tokyo Japan) RI dilution curves recorded an the right ventricle, the left lung, the left ventricle of 12 normal subjects were analyzed to obtain following parameters, namely interventricular peak to peak time and C(2)/C(1) ratio. 1) intraventricular peak to peak time average: 6.40 ± 1.18 seconds (4.80~8.64) 2) C(2)/C(1) ratio of right ventricle average: 0.45 ± 0.08 seconds (0.30~0.59) 3) C(2)/C(1) ratio of left ventricle average: 0.38 ± 0.09 seconds (0.22 ± 0.51) 4) C(2)/C(1) ratio of left lung average: 0.45 ± 0.08 seconds (0.30~0.55)No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558905-61978ACTAスキャナー0100型の使用経験 第2報 CT装置の使用に対する考察545550ENKanameAonoKeijiHashimotoKatashiSatoYasuoMorinoEtuoKawaseYoshioHirakiMasatadaTanabeMichioYamamotoWe have previously reported an outline of the ACTA scanner and its usefulness. In this report, we intend to present some aspects of the apparatus itself needing improvement and also offer our opinion on some points to be borne in mind on the actual use of the scanner.No potential conflict of interest relevant to this article was reported.岡山医学会Acta Medica Okayama0030-1558905-61978ACTAスキャナー0100型の使用経験 第1報 CT装置に対する考察537543ENKanameAonoKeijiHashimotoKatashiSatoYasuoMorinoKatsuhikoSugitaMasatadaTanabeMichioYamamotoIt is only a little over two odd years since computer tomography (CT) has come to be used in Japan. However, during this short period of time great interest in the CT apparatus has been aroused. As we have had the opportunity to use the ACTA scanner (type 0100) set in June, 1976 at the hospital affiliated to Okayama University, we describe here our experiences with it and introduce an outline of the CT apparatus as well as its usefulness.No potential conflict of interest relevant to this article was reported.