Aktuelle Radiologie最新文献

[Spiral CT. Better resolution by increased pitch?]. (螺旋CT。提高音高能提高分辨率?

Aktuelle Radiologie Pub Date : 1998-11-01

G Rockstroh

引用次数: 0

[MRI diagnosis of a female urethral diverticulum]. 【女性尿道憩室的MRI诊断】。

Aktuelle Radiologie Pub Date : 1998-11-01

T Göttsche, R Maas, E Bücheler

引用次数: 0

[CT-guided punctures: fine-needle biopsy vs. automated co-axial cutting biopsy]. [ct引导穿刺:细针活检与自动同轴切割活检]。

Aktuelle Radiologie Pub Date : 1998-11-01

H J Skamel, A Hanusch, K Mathias

{"title":"[CT-guided punctures: fine-needle biopsy vs. automated co-axial cutting biopsy].","authors":"H J Skamel, A Hanusch, K Mathias","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: Comparison between fine needle aspiration (FNAB) and automated coaxial core biopsy (ACCB) of CT-guided thoracal and abdominal biopsies.Method: 98 patients had CT-guided biopsies of the liver (n = 26), lung (n = 36), pancreas (n = 8), presacral space (n = 16), retroperitoneum (n = 8), groin (n = 1) and mediastinum (n = 3). In 50 patients fine needle aspiration, in 48 patients ACCB was performed. Nine physicians, two of them with advanced experience, performed the procedure.Results: Histologically satisfying material was achieved in 76% of the biopsies with FNAB, in 100% with ACCB. The sensitivity within the FNAB group was 59.6%, within ACCB group 97.5%. Sensitivity for the whole group was 76.7%. In pulmonary lesions the sensitivity was increased to 100% by using the ACCB method in comparison to FNAB (58%), in liver lesions from 75% (FNAB) to 92% (ACCB). 19 of 20 false negative specimens were obtained with FNAB. The less experienced physicians had a false negative rate of 43% with FNA biopsies, but only 2.2% with ACCB.Conclusion: In pulmonary and abdominal lesions ACCB is a procedure with rare complications and low invasivity, which is not dependent on the performing person. ACCB has a high diagnostic accuracy and should replace FNAB.","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 6","pages":"273-7"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20802042","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

[Sensitivity differences of different emulsion numbers for different UV/blue-sensitive films]. 【不同乳剂数对不同UV/蓝感光膜的感光度差异】。

Aktuelle Radiologie Pub Date : 1998-11-01

C Blendl, K Goergens

{"title":"[Sensitivity differences of different emulsion numbers for different UV/blue-sensitive films].","authors":"C Blendl, K Goergens","doi":"","DOIUrl":"","url":null,"abstract":"The German standard series DIN 6868 does not include a separate requirement for deviations in the sensitivity of different emulsion numbers or, respectively, the relative contribution of the film to sensitivity S of a screen film system (SFS) whose sensitivity is determined according to DIN 6867-1 [1]. The inclusion and interpretation of these contributions in the test body exposure according to DIN 6868-3 [2] has not proved to be of value since an unambiguous error recognition is only possible with considerable experimental experience (additional exposure of a sensitometer strip and interpretation of the resulting consequences). The investigations reported here demonstrate that the correlation of sensitometric parameters obtained from sensitometer strips generated with sensiometer exposure and X-ray exposure is so large that differences in sensitivity of different emulsion numbers of a screenfilm larger than delta log H > or = 0.015 or delta H > or = 4% can be surely detected on exact observance of the experimental limiting conditions. Thus, the statements by the manufacturers in \"ZVEI information Nr. 7 of the X-ray Regulation\" [3] with regard to the claimed scattering width of screenfilms can be tested and evaluated at least tendencially when the systemic fluctuations and measurement uncertainties, see in particular DIN 6868-55 Appendix E of Sept. 1996 (4), are correctly taken into consideration. In general a deviation in the sensitivity exceeding the manufacturers claimed maximal scattering range of delta log H = 0.06, i.e. delta H = 15% can be detected with certainty.","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 6","pages":"288-92"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20802045","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

[Angiodysplasia in a jejunal diverticulum as an unusual cause of lower gastrointestinal bleeding]. [空肠憩室血管发育不全是下消化道出血的罕见病因]。

Aktuelle Radiologie Pub Date : 1998-11-01

C Elste, H E Adamek, W Weber, J C Arnold, J F Riemann

引用次数: 0

[Non-aortic extracranial arterial aneurysm]. [非主动脉外动脉瘤]。

Aktuelle Radiologie Pub Date : 1998-11-01

N Hortling, J Textor, H H Schild

引用次数: 0

[Benign solid and papillary epithelial tumors of the pancreas]. [胰腺良性实体瘤和乳头状上皮瘤]。

Aktuelle Radiologie Pub Date : 1998-11-01

H J Klemm, R Schillert

引用次数: 0

[Value of MRI, CT and findings in staging of gynecologic malignancies]. [MRI、CT及其表现在妇科恶性肿瘤分期中的价值]。

Aktuelle Radiologie Pub Date : 1998-11-01

M Lorenzen, J Braun, A Gehrckens, V Nicolas

引用次数: 0

[The stepchild of intestinal diagnosis. Evaluation of radiologic methods in the diagnosis of leiomyoma of the small intestine]. 肠道诊断的继子。小肠平滑肌瘤的影像学诊断价值[j]。

Aktuelle Radiologie Pub Date : 1998-11-01

M Keberle, G Wittenberg, M Jenett, J G Müller, D Hahn

{"title":"[The stepchild of intestinal diagnosis. Evaluation of radiologic methods in the diagnosis of leiomyoma of the small intestine].","authors":"M Keberle, G Wittenberg, M Jenett, J G Müller, D Hahn","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: Various radiological methods to diagnose small bowel neoplasms and problems of differential diagnosis specially considering leiomyomas are discussed.Patients and methods: Two patients with leiomyoma of the ileum underwent enteroclysis, computed tomography of the abdomen, intra-arterial DSA and colour Doppler sonography. Another patient with leiomyosarcoma just underwent CT of the abdomen with CT-guided biopsy.Results: Due to the homogenous density and the smooth surface of the tumors in computed tomography and respectively enteroclysis and the presentation of the tumor vascularisation in the angiography and Colour Doppler sonography in both patients a leiomyoma of the small bowel was diagnosed. Postoperatively this diagnosis was histologically confirmed. The CT-findings of the patient with leiomyosarcoma were not suspicious of a malignant tumor.Conclusion: Radiologically it is not possible to determine the dignity of smooth muscle cell tumors safely. That is the reason why the diagnosis has to be achieved operatively. But the histopathological diagnosis based on the mitotic rate may be difficult. Therefore the after care has to be carried out thoroughly.","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 6","pages":"253-9"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20802039","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

[Clinical relevance of thoracic CT in intensive care and emergency medicine]. [胸部CT在重症监护和急诊医学中的临床意义]。

Aktuelle Radiologie Pub Date : 1998-11-01

M Gartenschläger, F Schweden, C Düber, L S Weilemann, S Ott, T Westermeier, M Thelen

{"title":"[Clinical relevance of thoracic CT in intensive care and emergency medicine].","authors":"M Gartenschläger, F Schweden, C Düber, L S Weilemann, S Ott, T Westermeier, M Thelen","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: Evaluation of the impact, indications, and therapeutic efficiency of chest CT in intensive-care and emergency patients.Materials and methods: Retrospective assessment of 741 consecutive chest CT, or which 74% were acquired in the spiral technique, in intensive-care and emergency patients. Chest CT scans and respective clinical data were compared.Results: 16% of all examinations were indicated to resolve questions arising from the chest radiogram, 10% to confirm or exclude pulmonary embolisms and 10% to confirm or exclude aortic dissection. In 10% a focus of infection was sought. 57% of all CT examinations had an impact on therapy, in 7% further diagnostic tests were prompted. Among a total of 588 clinical decisions based upon chest CT, the most frequent therapeutic conclusions consisted in: minimally invasive CT guided interventions in 17%. A new drug was administered in 13%, surgical intervention was performed in 13%, bed-side interventions such as insertion of a drainage tube in 13%, and a given pharmacological therapy was continued in 11%.Conclusion: Chest CT has a strong impact on patient management in emergency and critical-care medicine. CT guided interventions are frequently used in critically-ill patients. The introduction of the spiral technique has led to important new CT indications in the field of non-invasive vascular diagnosis, namely the assessment of pulmonary embolism and aortic dissection.","PeriodicalId":76986,"journal":{"name":"Aktuelle Radiologie","volume":"8 6","pages":"260-5"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20802040","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