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Radiologia diagnostica最新文献

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[Extrafocal radiation of medical x-ray tubes with a rotating anode]. [带旋转阳极的医用x射线管的焦外辐射]。
Radiologia diagnostica Pub Date : 1990-01-01
R Juran, R Hinz
{"title":"[Extrafocal radiation of medical x-ray tubes with a rotating anode].","authors":"R Juran,&nbsp;R Hinz","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A method for measuring the fraction of extrafocal radiation in the x-ray output of x-ray tubes was developed and tested under clinical conditions. A fraction of 10% was found, that increases with tube voltage and field size, while tube current and focal spot size have no influence. As a measure for the influence of off-focus radiation on image quality the contrast transfer function was used. Off-focus radiation causes detectable geometric unsharpness. If screen-film-systems are used, the unsharpness is negligible compared with the screen unsharpness. Ways for reducing off-focus radiation from medical x-ray tubes are discussed.</p>","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13491723","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: 0
[Genuine diffuse phlebectasia]. [真性弥漫性静脉扩张]。
Radiologia diagnostica Pub Date : 1990-01-01
U Roy, N Christen, H Platzbecker
{"title":"[Genuine diffuse phlebectasia].","authors":"U Roy,&nbsp;N Christen,&nbsp;H Platzbecker","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13492363","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: 0
[Successes and failures of CT-guided percutaneous drainage of abdominal abscesses]. 【ct引导下经皮腹腔脓肿引流术的成败】。
Radiologia diagnostica Pub Date : 1990-01-01
A Bock, M Lüning, H Wolff
{"title":"[Successes and failures of CT-guided percutaneous drainage of abdominal abscesses].","authors":"A Bock,&nbsp;M Lüning,&nbsp;H Wolff","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13492364","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: 0
[The reduction of radiation burden in mammography using film-screen combination systems]. [使用膜-筛联合系统减少乳房x光检查的辐射负担]。
Radiologia diagnostica Pub Date : 1990-01-01
U Waegner, S Geissler, G Rosenkranz
{"title":"[The reduction of radiation burden in mammography using film-screen combination systems].","authors":"U Waegner,&nbsp;S Geissler,&nbsp;G Rosenkranz","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The comparison of mammographic image recording systems TF-13-nonscreen film and ORTHO-MA with MIN-R screens leads to the necessary conclusion, that mammography should be carried out only with screen film combinations and an anti-scatter grid. This means improved contrast and a reduction of radiation dose to 1/3 of the dose of TF 13. Since in the GDR the film XR 10 still is used as mammographic film the fourfold of the internationally possible dose is required. The urgent change of the situation can only be achieved with respective imports.</p>","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13430678","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: 0
[The results and tolerability of infusion cholegraphy using ioglycamide-85 (12.75 g meglumine salt in 75 ml) in comparison with the use of a hypotonic adipiodone solution (10 g meglumine salt in 100 ml)]. [输注碘甘酰胺-85 (12.75 g meglumine盐75 ml)与使用低渗己二碘酮溶液(10 g meglumine盐100 ml)的结果和耐受性比较]。
Radiologia diagnostica Pub Date : 1990-01-01
H P Ronneburg
{"title":"[The results and tolerability of infusion cholegraphy using ioglycamide-85 (12.75 g meglumine salt in 75 ml) in comparison with the use of a hypotonic adipiodone solution (10 g meglumine salt in 100 ml)].","authors":"H P Ronneburg","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The quality of 96 infusion cholegraphies with isotonic Ioglycamide-85 solution and of 2,080 infusion cholegraphies with hypotonic adipiodone-50 gave equal images in 97% of the cases. Ioglycamide-85 caused side-effects in 15.6%, Adipiodone only in 1.5% of the cases. For improved compatibility of Ioglycamide and of new contrast media as Iotroxamide and Idoxamide the use of hypotonic solutions is recommended for infusion. Their concentration should be osmotically tolerated by the erythrocytes. For the prevention of liver necrosis by contrast media the amount of contrast medium should be limited to 10 g meglumine salt.</p>","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13515642","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: 0
[Prostatic and bladder cancer--desiderata of the urologist as regards diagnostic imaging]. [前列腺癌和膀胱癌——泌尿科医生对诊断成像的期望]。
Radiologia diagnostica Pub Date : 1990-01-01
D Schnorr
{"title":"[Prostatic and bladder cancer--desiderata of the urologist as regards diagnostic imaging].","authors":"D Schnorr","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>On the background of a continuous increase of knowledge in urologic oncology, the need for actual information and for interdisciplinary cooperation we discuss the diagnostics of prostatic and cystic carcinoma from the standpoint of the required therapy. The threshold of diagnostic detectability of prostatic carcinoma today is approximately the size of a matches head. By transrectal sonography and MRT the anatomic zones of the prostate are imaged and a selective biopsy becomes possible. Morphometric studies of prostatic carcinoma with pathologic-anatomical descriptions of the tumour volume and capsular penetration are described. The requirements for medical imaging for sufficient information on tumour volume, seminal bladder infiltration, capsular infiltration and lymph node diagnostics are derived. For the diagnostics of bladder carcinoma the significance of the lamina propria as a separating membrane between superficial and infiltrating carcinoma is discussed. Possibilities and limitations for the T- and N-determination of infiltrating carcinoma with CT and MRT and new therapy concepts (neoadjuvant chemotherapy) for the muscle-infiltrating cystic carcinoma are discussed.</p>","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13517258","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: 0
[Possibilities and limitations of rapid radiologic detection of selected chemicals in acute poisoning of unknown origin]. [在不明原因急性中毒中对选定化学品进行快速放射检测的可能性和局限性]。
Radiologia diagnostica Pub Date : 1990-01-01
J Teichert, H Fischer, B Fischer, R Ludewig
{"title":"[Possibilities and limitations of rapid radiologic detection of selected chemicals in acute poisoning of unknown origin].","authors":"J Teichert,&nbsp;H Fischer,&nbsp;B Fischer,&nbsp;R Ludewig","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Knowledge of the radiopacity of bromine-containing hypnotics and of halogenated hydrocarbons has led to numerous recommendations and speculations. Supported by own investigations the sensible application of a rapid radiological determination in the practice of clinical toxicology is discussed. This should always be carried out, if solvent residues, gastric contents or gastric lavage fluid are available, a ingestion is suspected, and the result of chemical analysis is not promptly obtainable. However, a hint at the group of halogenated hydrocarbons is only possible, if additional information about miscibility with water is accessible. Revealing the presence of radiopaque material in tablet or liquid form by radiologic studies of the abdomen may be very helpful for the rapid evaluation of symptomatology and first therapeutic consequences, but it does not allow any chemical identification of the poison.</p>","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13491718","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: 0
[Medical and economic aspects of complex diagnostic imaging]. [复杂诊断成像的医学和经济方面]。
Radiologia diagnostica Pub Date : 1990-01-01
J H Göthlin
{"title":"[Medical and economic aspects of complex diagnostic imaging].","authors":"J H Göthlin","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13517256","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: 0
[Determination of the radiation imparted to patients in x-ray diagnosis--methods and results]. 【x射线诊断中给予患者的辐射的测定——方法和结果】。
Radiologia diagnostica Pub Date : 1990-01-01
D Gosch, S Gursky
{"title":"[Determination of the radiation imparted to patients in x-ray diagnosis--methods and results].","authors":"D Gosch,&nbsp;S Gursky","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The amount of radiation committed to the patient is best described by appropriate organ doses. Methods for determining such dose values are described. For x-ray investigations of the chest, thoracic and lumbar spine, pelvis and kidney (excretion urography) our own organ-dose values are compared with those from the literature.</p>","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13342676","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: 0
[A comparison of mammographic, sonographic and histologic parameters in breast cancer]. [乳腺癌乳腺x线、超声和组织学参数的比较]。
Radiologia diagnostica Pub Date : 1990-01-01
C Steffin
{"title":"[A comparison of mammographic, sonographic and histologic parameters in breast cancer].","authors":"C Steffin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Sonography provides a safety in dignity that is comparable to mammography while its overall sensitivity is higher. Mammography remains the method of choice. All mammographically unclear cases should be elucidated with sonography. For this reason an integration of a sonographic device and a mammography unit is advisable.</p>","PeriodicalId":20972,"journal":{"name":"Radiologia diagnostica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13348086","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: 0
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