Acta radiologica: diagnosis最新文献

Acta radiologica: diagnosis Pub Date : 2009-07-09 DOI: 10.3109/02841856709138605

J. Visfeldt

引用次数: 1

Importance Du Volume Irradié Et Notion De Dose Dans Le Traitement Post-Opératoire Des Tumeurs Cérébrales 脑肿瘤术后治疗中照射量和剂量概念的重要性

Acta radiologica: diagnosis Pub Date : 2009-07-09 DOI: 10.3109/02841856609139541

Par J Legré, M. D. Et, J. Paillas

引用次数: 3

RADIATION LOAD TO THE GONADS IN DIAGNOSTIC AND THERAPEUTIC PROCEDURES 诊断和治疗过程中对性腺的辐射负荷

Acta radiologica: diagnosis Pub Date : 2009-07-09 DOI: 10.3109/02841856709138600

K. Koren, S. Maudal, J. Flatby, L. Berteig

引用次数: 4

Cesium 137 Burdens in the Canadian North 加拿大北部的铯137负担

Acta radiologica: diagnosis Pub Date : 2009-07-09 DOI: 10.3109/02841856709138610

V. Mohindra

引用次数: 3

Effect of Cyclophosphamide on Pain in Advanced Carcinoma of the Cervix 环磷酰胺对晚期宫颈癌疼痛的影响

Acta radiologica: diagnosis Pub Date : 2009-07-09 DOI: 10.3109/02841856709138604

N. Einhorn†

引用次数: 2

Ultrasonographic investigation of respiratory influence on diameters of portal vessels in normal subjects. 正常人呼吸对门静脉直径影响的超声研究。

Acta radiologica: diagnosis Pub Date : 1986-11-01 DOI: 10.1177/028418518602700609

M Kurol, L Forsberg

引用次数: 30

Cardiovascular responses to the intracarotid injections of ionic contrast media and iohexol in the dog. 狗颈动脉内注射离子造影剂和碘己醇后的心血管反应。

Acta radiologica: diagnosis Pub Date : 1986-11-01 DOI: 10.1177/028418518602700620

K Hayakawa, T W Morris, R W Katzberg, H W Fischer

{"title":"Cardiovascular responses to the intracarotid injections of ionic contrast media and iohexol in the dog.","authors":"K Hayakawa, T W Morris, R W Katzberg, H W Fischer","doi":"10.1177/028418518602700620","DOIUrl":"https://doi.org/10.1177/028418518602700620","url":null,"abstract":"Hypotension and bradycardia are the most significant cardiovascular responses resulting from intracarotid injections of hypertonic contrast media (CM). We have assessed both local and systemic vascular responses to the selective intracarotid injections of ionic and non-ionic CM in twelve pentobarbital anesthetized dogs. Alterations in blood pressure, heart rate, and femoral, renal and carotid blood flows were monitored following right common carotid artery injections of ionic contrast media (282-288 mg I/ml), isotonic saline, and iohexol (300 mg I/ml). Ionic CM led to early (0 to 10 s) decreases in blood pressure, heart rate and femoral vascular resistance. Isotonic saline induced no significant early changes in these same parameters while iohexol caused a decrease in heart rate. Our observations suggest that the early (0 to 10 s) decreases in femoral vascular resistance, heart rate and pressure that occur with the intracarotid injection of hypertonic CM are mediated via the autonomic nervous system and initiated from a site in the carotid circulation. During the 15 to 40 s period when the CM has reached the systemic circulation, iohexol produced smaller effects on systemic blood pressure and peripheral vascular resistances than did the ionic CM. During this 15 to 40 s period there were decreased vascular resistances in the carotid and renal vascular beds that probably result from local effects of the CM, however, the femoral resistance was actually increased. This later increase in femoral resistance probably represents the results of increased sympathetic nervous system activity working to offset the decrease in renal and carotid resistances and thus maintain pressure at baseline values.(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 6","pages":"729-33"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700620","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14927959","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: 4

Space orientation of total hip prosthesis. A method for three-dimensional determination. 全髋关节假体的空间定位。三维测定方法。

Acta radiologica: diagnosis Pub Date : 1986-11-01 DOI: 10.1177/028418518602700602

K Herrlin, G Selvik, H Pettersson

引用次数: 31

Tumours of the central nervous system. Proton magnetic resonance relaxation times T1 and T2 and histopathologic correlates. 中枢神经系统的肿瘤质子磁共振弛豫时间T1和T2与组织病理学相关。

Acta radiologica: diagnosis Pub Date : 1986-11-01 DOI: 10.1177/028418518602700606

E Englund, A Brun, E M Larsson, Z Györffy-Wagner, B Persson

{"title":"Tumours of the central nervous system. Proton magnetic resonance relaxation times T1 and T2 and histopathologic correlates.","authors":"E Englund, A Brun, E M Larsson, Z Györffy-Wagner, B Persson","doi":"10.1177/028418518602700606","DOIUrl":"https://doi.org/10.1177/028418518602700606","url":null,"abstract":"Proton MR relaxation times T1 and T2 were determined in vitro in 136 small specimens of astrocytomas grades I-IV, of oligodendrogliomas, metastases of adenocarcinomas, meningiomas and acoustic neuromas. In addition, 7 samples of peritumoural white matter were analysed. The analysed specimens were studied microscopically in their entirety regarding tumour type and occurrence of necrosis and non-tumour tissue admixture, such as fibrosis and haemorrhage. Most of the gliomas had longer relaxation times than normal white matter and T2 was significantly longer than in the other three tumour groups. The metastases had longer T1 than normal white matter, while T2 varied. The astrocytomas tended to show shorter relaxation times with increasing degree of malignancy, and shortening of T1 and T2 correlating with the proportion of tissue necrosis. Similarly, the metastases with tissue necrosis had shorter T1 and T2 than non-necrotic samples. The meningiomas had T1 values comparable with normal cortex, while the T2 values varied. Tumours containing a large proportion of fibrous tissue had shorter relaxation times than the others. Acoustic neuromas had only slightly longer T1 than normal white matter, while T2 was not prolonged. Both T1 and T2 were significantly shorter than in all other tumours studied. Peritumoural white matter had prolonged relaxation times compared with normal white matter, correlating to increased water content. These in vitro differences regarding relaxation times in various types of tumours of the central nervous system, dependent on various types of tissue alterations, should be of interest for the interpretation of in vivo images.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 6","pages":"653-9"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700606","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14161269","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: 175

Computed tomography of temporal bone specimens. A test of the resolution capability. 颞骨标本的计算机断层扫描。对分辨率的测试。

Acta radiologica: diagnosis Pub Date : 1986-11-01 DOI: 10.1177/028418518602700605

C Muren, C Ytterbergh

引用次数: 5