Acta radiologica: diagnosis最新文献_第5页

Computed tomography of pleural lesions with special reference to the mediastinal pleura. 胸膜病变的计算机断层扫描，特别是纵隔胸膜。

Acta radiologica: diagnosis Pub Date : 1986-09-01 DOI: 10.1177/028418518602700507

O Salonen, L Kivisaari, C G Standertskjöld-Nordenstam, K Somer, K Mattson, L Tammilehto

{"title":"Computed tomography of pleural lesions with special reference to the mediastinal pleura.","authors":"O Salonen, L Kivisaari, C G Standertskjöld-Nordenstam, K Somer, K Mattson, L Tammilehto","doi":"10.1177/028418518602700507","DOIUrl":"https://doi.org/10.1177/028418518602700507","url":null,"abstract":"Computed tomography (CT) and conventional chest radiography were reviewed in retrospect in 84 patients in whom pleural pathology was suggested clinically. The importance of administration of contrast medium in distinguishing between malignant lesions and other pleural diseases was given special attention. CT was found to be of value in diagnosing and establishing the extent of pleural lesions, especially in the mediastinal region. All malignancies exhibited high contrast enhancement following intravenous bolus injection of contrast medium. There were no features specific for mesotheliomas distinguishing these from other pleural malignancies. Some benign infectious lesions also showed high contrast enhancement. High contrast enhancement thus indicated malignancy only if an infectious lesion could be excluded. If contrast enhancement was absent or slight, the lesion was likely to be benign. Clinical follow-up may be regarded as justified in such cases. Indirect signs were not helpful in distinguishing between malignant and benign lesions.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 5","pages":"527-31"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700507","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14917522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Radiologic evaluation of the oral stage of swallowing. 口腔吞咽阶段的放射学评价。

Acta radiologica: diagnosis Pub Date : 1986-09-01 DOI: 10.1177/028418518602700508

O Ekberg, B Hillarp

引用次数: 27

Mobile intraventricular cyst of the third ventricle treated with stereotactic puncture. Report of a case. 立体定向穿刺治疗第三脑室移动式囊肿。报告一个病例。

Acta radiologica: diagnosis Pub Date : 1986-09-01 DOI: 10.1177/028418518602700503

K Ericson, M Lindqvist, G Norén, S Håkansson

引用次数: 1

Computed tomography in early stages of testicular carcinoma. Size of normal retroperitoneal lymph nodes and lymph nodes in patients with metastases in stage II A. A SWENOTECA study: Swedish-Norwegian Testicular Cancer Project. 睾丸癌早期的计算机断层扫描。正常腹膜后淋巴结和II期转移患者的淋巴结大小。瑞典-挪威睾丸癌项目的SWENOTECA研究。

Acta radiologica: diagnosis Pub Date : 1986-09-01 DOI: 10.1177/028418518602700516

L Forsberg, L Dale, L Høiem, A Magnusson, P Mikulowski, A M Olsson, S Ous, A E Stenwig

{"title":"Computed tomography in early stages of testicular carcinoma. Size of normal retroperitoneal lymph nodes and lymph nodes in patients with metastases in stage II A. A SWENOTECA study: Swedish-Norwegian Testicular Cancer Project.","authors":"L Forsberg, L Dale, L Høiem, A Magnusson, P Mikulowski, A M Olsson, S Ous, A E Stenwig","doi":"10.1177/028418518602700516","DOIUrl":"https://doi.org/10.1177/028418518602700516","url":null,"abstract":"From the SWENOTECA Project, the CT findings in 156 patients treated by bilateral retroperitoneal lymphadenectomy were reviewed. Of these, 112 were in stage I (no metastases) and 44 in stage II A (metastases in normal-sized lymph nodes and in nodes with a maximum diameter in the transverse plane of less than or equal to 20 mm). The normal size of lymph nodes in young Scandinavian men was found to be less than 10 mm X 8 mm above the bifurcation, except in the area below the left renal vein to the left of the aortic midline where the normal size was found to be maximally 14 mm X 10 mm. The addition of a lymphangiographic contrast medium did not change the size of the lymph nodes significantly above the bifurcation, while changes of importance were noticed in the pelvic area. Normal size without contrast medium was found to be at the most 15 mm X 10 mm and after addition of contrast medium to the nodes 28 mm X 12 mm. The results of the CT findings in the stage II A group were not impressive but changed somewhat for the better using the new limits concerning size of retroperitoneal lymph nodes. The impact of using different limits is discussed and it is concluded that metastases in normal-sized or almost normal-sized lymph nodes will continue to be a diagnostic problem, at least when using CT.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 5","pages":"569-74"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700516","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14159184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Dimension of the pharyngo-esophageal segment in dysfunction of the cricopharyngeal muscle. 环咽肌功能障碍中咽-食管段的尺寸。

Acta radiologica: diagnosis Pub Date : 1986-09-01 DOI: 10.1177/028418518602700509

O Ekberg

引用次数: 3

Radiologic findings and weight loss following gastroplasty for morbid obesity. 病态肥胖胃成形术后的影像学表现和体重减轻。

Acta radiologica: diagnosis Pub Date : 1986-09-01 DOI: 10.1177/028418518602700512

J Miskowiak, P Fleckenstein, B Andersen

引用次数: 5

Positron emission tomography of cavernous haemangiomas of the brain. 脑海绵状血管瘤的正电子发射断层扫描。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700402

K Ericson, H von Holst, M Mosskin, M Bergström, M Lindqvist, G Norén, L Eriksson

引用次数: 13

Real-time ultrasonography of thyroid nodules. 甲状腺结节的实时超声检查。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700406

N Hayashi, N Tamaki, K Yamamoto, M Senda, Y Yonekura, T Misaki, Y Iida, K Kasagi, K Endo, J Konishi

引用次数: 41

Quantitative metacarpal bone measurements before and after renal transplantation. 肾移植前后掌骨的定量测量。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700414

J Andresen, H E Nielsen

{"title":"Quantitative metacarpal bone measurements before and after renal transplantation.","authors":"J Andresen, H E Nielsen","doi":"10.1177/028418518602700414","DOIUrl":"https://doi.org/10.1177/028418518602700414","url":null,"abstract":"The outer (D) and inner diameter (d) of the second metacarpal bone, the combined cortical thickness (D-d), cortical area (D2-d2) and bone mass [D2d2)/D2) were measured in 74 renal transplant (RT) recipients at the time of renal transplantation and in a prospective analysis of 60 recipients after transplantation. The RT patient group was made up of recipients who after renal transplantation developed osteonecrosis or spontaneous fractures (RT-ON/SF) and an age- and sex-matched renal control group of subjects who did not develop these complications (RT-C). At the time of renal transplantation, in renal transplant recipient men and women, significantly reduced values in D, D-d and D2-d2 was noticed. These findings could be explained by a higher ratio of bone resorption than formation at the periosteal surface. Following renal transplantation, significant increases in d were seen with significant decreases in D-d, D2-d2 and (D2-d2)/D2, probably due to endosteal bone resorption, whereas D was unchanged compared with normal control persons. In the total group and in RT-ON/SF women, D decreased significantly and in ON/SF, increased significantly with significant decrease in bone mass compared with normal women whereas no significant changes in the parameters were seen in RT-C women. These findings indicate that bone loss after transplantation continues at the periosteal surface in women. The bone loss was most markedly demonstrated in women, who subsequently develop osteonecrosis or spontaneous fractures, probably due to a combined periosteal and endosteal resorption of calcified bony tissue.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 4","pages":"437-42"},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14657099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Image quality in mammography with special reference to anti-scatter grids and the magnification technique. 乳房x线摄影的图像质量，特别涉及到抗散射网格和放大技术。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700420

B Nielsen, G Fagerberg

{"title":"Image quality in mammography with special reference to anti-scatter grids and the magnification technique.","authors":"B Nielsen, G Fagerberg","doi":"10.1177/028418518602700420","DOIUrl":"https://doi.org/10.1177/028418518602700420","url":null,"abstract":"Some of the parameters determining image quality in mammography are analyzed: the effects of primary photon spectra, focal spot size and screen-film systems on spatial resolution are discussed as are scattered radiation, development temperature and absorbed dose. The parameters limiting spatial resolution and contrast are evaluated for the standard and magnification techniques. Methods of reducing scattered radiation to improve contrast are evaluated. Scatter to primary ratios for different scatter reducing methods are compared, using the physical quantity energy imparted. For the standard technique the spatial resolution has been found to be limited by the fluorescent screen. With magnification technique the focal spot is the weakest link for the spatial resolution. The contrast is mainly set by the amount of scatter using the standard technique considering the use of a low tube potential (approximately 25 kVp). Using the magnification technique the amount of scatter is so small, that the tube potential is the limiting factor. We have found the optimized standard mammographic technique to be achieved under the following conditions: 25 kVp, 0.3 to 0.6 mm focal spot, film-focus distance 500 mm, anti-scatter grid, developing temperature 36 to 38 degrees C and 4 minutes total processing time with the screen-film system we have used. In magnification technique an air gap of at least 20 mm is desired. With an FFD of about 500 mm this will give a magnification ratio of 1.8 to 2.0 and a 0.1 mm X 0.1 mm focus spot is mandatory. With this technique, it is necessary to use a faster screen-film system than that used in standard mammography.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 4","pages":"467-79"},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14894936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26