Bildgebung = Imaging最新文献_第6页

[The value of 3D video endoscopy for surgical procedures]. 【3D视频内窥镜在外科手术中的应用价值】。

Bildgebung = Imaging Pub Date : 1995-09-01

E Matouschek, H Becker

引用次数: 0

[Reliability of ultrasound ileus diagnosis]. 超声诊断肠梗阻的可靠性。

Bildgebung = Imaging Pub Date : 1995-09-01

H P Heistermann, U Joosten, K D Rupp, A Holzgreve, R Horstmann

引用次数: 0

Endosonographically guided transduodenal and transgastral fine-needle aspiration puncture of focal pancreatic lesions. 超声引导下经十二指肠和经胃细针穿刺局灶性胰腺病变。

Bildgebung = Imaging Pub Date : 1995-06-01

M Wegener, B Pfaffenbach, R J Adamek

{"title":"Endosonographically guided transduodenal and transgastral fine-needle aspiration puncture of focal pancreatic lesions.","authors":"M Wegener, B Pfaffenbach, R J Adamek","doi":"","DOIUrl":"","url":null,"abstract":"Mass lesions of the pancreas can be clearly visualized by endoscopic ultrasonography. For the differentiation of benign from malignant mass lesions, however, cytological examination is still recommended. As transcutaneous fine-needle biopsies have a limited diagnostic value, we have evaluated the efficiency of transmural (trangastral, transduodenal) endosonographically guided fine-needle aspiration (EUS-guided FNA) puncture for cytological confirmation of such pancreatic mass lesions. EUS-guided FNA puncture was performed in 11 patients with focal pancreatic solid lesions. In 4 patients a malignant mass lesion and in 2 patients a benign lesion were correctly identified by EUS-guided FNA puncture, while in 4 patients a false benign diagnosis was established and in 1 patient with a malignant mass lesion a sufficient cytological sample could not be obtained. Histological confirmation or rejection of the cytological diagnosis gained by EUS-guided FNA puncture was obtained in all patients by surgical biopsy or resection. It is concluded that transmural EUS-guided FNA puncture-with the application of a curved-array EUS transducer scanning parallel to the axis of the endoscope-is a new approach to the cytological diagnosis of pancreatic mass lesions. However, the of flexible puncture needles with a short needle tip-destined for multiple use-results in a considerable amount of false-negative diagnoses, as the needle tip frequently can only be advanced into the margin of the lesion. New prototypes of aspiration needles with an extending steel are presently under study for improved transmural EUS-guided FNA puncture.","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 2","pages":"110-5"},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18667764","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

[Ultrasound assessment of extranodal abdominal lymphoma involvement: an overview]. 【结外腹腔淋巴瘤累及的超声评估:综述】。

Bildgebung = Imaging Pub Date : 1995-06-01

C Görg, R Weide, W B Schwerk

引用次数: 0

[Color-coded duplex ultrasound and laser Doppler flowmetry of finger tips of healthy probands]. [健康先证者指尖彩色编码双工超声及激光多普勒血流测量]。

Bildgebung = Imaging Pub Date : 1995-06-01

M E Mück-Weymann, R Leppek, H P Albrecht, O P Hornstein, K J Klose, R D Bauer

{"title":"[Color-coded duplex ultrasound and laser Doppler flowmetry of finger tips of healthy probands].","authors":"M E Mück-Weymann, R Leppek, H P Albrecht, O P Hornstein, K J Klose, R D Bauer","doi":"","DOIUrl":"","url":null,"abstract":"In the study presented, color-coded duplex sonography (CCDS) and laser Doppler flux (LDF) signals from finger tips of 7 healthy individuals were recorded simultaneously. The aim of the study was to examine whether or not the results of a functional test ('deep inspiration') could also be observed with an ultrasonic Doppler. In the literature this test is known to provoke notable blood flow characteristics of the LDF ('inspiratory gasp'), a phenomenon which is caused by a sympathetically mediated vasoconstriction of acral vessels. With regard to the penetration depth of the LDF in skin it was of further interest to determine the distance between the surface of the skin and the vessels found near the surface. We found for CCDS parameters (color pixels/image; time-averaged flow velocity [TAV]; resistance index [RI]) as well as for LDF (flux [taLDF]) significant changes before versus after 'deep inspiration'. CCDS is a new diagnostic tool to visualize also very small vessels down to 0.2 mm, e.g. in finger tips. It should be evaluated which role this method may play in combination with functional tests in diagnostic handling, e.g. of patients with polyneuropathies or collagenoses.","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 2","pages":"132-7"},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18667767","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

Postoperative liver allograft dysfunction: the use of quantitative duplex Doppler signal analysis in adult liver transplant patients. 同种异体肝移植术后功能障碍:定量双多普勒信号分析在成人肝移植患者中的应用。

Bildgebung = Imaging Pub Date : 1995-06-01

J Harms, B Ringe, R Pichlmayr

{"title":"Postoperative liver allograft dysfunction: the use of quantitative duplex Doppler signal analysis in adult liver transplant patients.","authors":"J Harms, B Ringe, R Pichlmayr","doi":"","DOIUrl":"","url":null,"abstract":"40 patients after orthotopic liver transplantation were prospectively analysed by serial quantitative duplex Doppler signal analysis (DDSA) to quantify the abnormalities of Doppler waveform of the hepatic artery (HA), the portal vein (PV) and the hepatic vein (HV) under various conditions of graft dysfunction. Quantitative analysis of the HA, PV and HV was obtained before, during and after allograft dysfunction by different Doppler angle independent parameters. The results obtained later on were correlated with clinical and laboratory data, cytological and histological findings of liver core biopsy and quantitative DDSA data of healthy transplanted volunteers. The increase of the resistive index of Pourcelot calculated for the hepatic artery (HA-RI) was found to be significant in early graft reperfusion reaction (p < 0.01). No correlation was found between the HA-RI and acute allograft rejection. Different patterns of damping quantified by the damping index (DI = minimum velocity shift/maximum velocity shift) for the portal vein (PV-DI) and the hepatic vein (HV-DI) Doppler signal were observed under various conditions of allograft dysfunction. Acute rejection was identified by premature decrease of PV-DI and increase of HV-DI (p < 0.01) with a sensitivity of 75%, a specificity of 91%, a positive predictive value (ppv) of 75% and a negative predictive value (npv) of 91%. Chronic allograft rejection was not associated with an increase of HV-DI but only with a significant decrease of PV-DI (p < 0.01), with a sensitivity of 80%, a specificity of 95%, ppv of 95%, npv of 98%.(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 2","pages":"124-31"},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18667766","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 value of color-coded duplex ultrasound in the immediate postoperative phase of carotid artery reconstruction]. 彩色编码双工超声在颈动脉重建术后即刻期的价值。

Bildgebung = Imaging Pub Date : 1995-06-01

U Krünes, K Bürger, H Scholz

{"title":"[The value of color-coded duplex ultrasound in the immediate postoperative phase of carotid artery reconstruction].","authors":"U Krünes, K Bürger, H Scholz","doi":"","DOIUrl":"","url":null,"abstract":"Diagnostic value of color-coded duplex sonography within the first hours following carotid artery reconstruction was investigated. We examined 15 out of 290 patients who developed neurologic symptoms after carotid endarterectomy. During the early postoperative period color-coded duplex sonography was associated with some problems. The investigation at this time was characterized by poor quality of B mode and color Doppler. It may be caused by deposition of air or bleeding. Differentiation of internal and external carotid arteries was difficult. When Doppler sonography of the reconstructed carotid artery was additionally performed, more accurate information was obtained. A normal reconstructed internal carotid artery was found in 8 patients, whereas 5 patients showed pathologic results (3 stenoses, 1 total occlusion, 1 embolisation). In patients with pathologic changes reoperation was immediately performed. Results of ultrasound investigations were proved by intraoperative findings. In 2 patients examination of the reconstructed internal carotid artery was impossible even by the combination of duplex and Doppler sonography. We conclude that color-coded duplex sonography in combination with Doppler sonography is a valuable method for investigations in the early postoperative period following carotid artery reconstruction.","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 2","pages":"117-23"},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18667765","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 development of human gallbladder stones shown in X-ray pictures and its importance for the therapy. 人胆结石的x线影像发展及其对治疗的重要性。

Bildgebung = Imaging Pub Date : 1995-06-01

C Wolpers

{"title":"The development of human gallbladder stones shown in X-ray pictures and its importance for the therapy.","authors":"C Wolpers","doi":"","DOIUrl":"","url":null,"abstract":"Prophylactic treatment of patients with gallbladder stones today is obsolete. After secured diagnosis the patients and their physicians are waiting for the development of painful symptoms, mostly for years. Follow-up studies of gallbladder stones over decades show that there is no stability: especially the cholesterol stones change their size, shape, composition, and number during the waiting period for surgery. With a litholytical treatment of the cholesterol stones one has the chance to interrupt such changing processes by dissolution, with or without perfectionism. One can stop the development of painful symptoms and reduce the burden of the stones. To prevent an improper use of this treatment, only young, correctly floating cholesterol stones and the 2nd generation of cholesterol stones should be treated prophylactically. The diagnosis of the floating stones is possible with ultrasound or X-rays. We show the dissolution of the 2nd generation of cholesterol stones in two polymorbid, old patients with high risk for surgical treatment. The changing of the composition of gallbladder stones is demonstrated by different surface calcifications of multiple and solitary cholesterol stones, flat for multiple and periodically ordered for solitary stones.","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 2","pages":"94-101"},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18667770","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

[Imaging methods in diagnosis of chronic inflammatory bowel diseases]. 慢性炎症性肠病的影像学诊断

Bildgebung = Imaging Pub Date : 1995-06-01

H J Brambs, G Adler

引用次数: 0

Duplex Doppler ultrasonography allows a multiorgan noninvasive approach to splanchnic pharmacodynamics in patients with cirrhosis. 双多普勒超声允许多器官无创方法对肝硬化患者的内脏药效学进行检测。

Bildgebung = Imaging Pub Date : 1995-06-01

M Bolognesi, D Sacerdoti, C Merkel, L Caregaro, S Bellon, A Gatta

{"title":"Duplex Doppler ultrasonography allows a multiorgan noninvasive approach to splanchnic pharmacodynamics in patients with cirrhosis.","authors":"M Bolognesi, D Sacerdoti, C Merkel, L Caregaro, S Bellon, A Gatta","doi":"","DOIUrl":"","url":null,"abstract":"Unlabelled: Duplex Doppler ultrasonography (DDU) is a suitable method to evaluate acute splanchnic hemodynamic effects of vasoactive drugs. It allows the contemporary evaluation of arterial and venous splanchnic parameters. Forty-six cirrhotic patients with esophageal varices were investigated by DDU. Portal blood flow mean velocity (PBV) (cm/s), portal blood flow volume (PBF) (ml/min), pulsatility index (PI) [(maximum-minimum)/mean velocity] in the superior mesenteric artery, in intrahepatic arteries (main branches), in an instrasplenic artery, and in interlobar arteries of the kidneys were measured before and 120-180 min after the administration of nadolol (80 mg p.o.) in 24 patients, and before and 120 min after placebo administration in 9 patients. In 13 patients who were chronically treated with nadolol, DDU parameters were evaluated before and 90 min after the administration of isosorbide-5-mononitrate (20 mg p.o.).Results: placebo caused no hemodynamic change. After nadolol, heart rate decreased (-22 +/- 8%), and so did PBV and PBF (8.8 +/- 3.4 vs. 10.9 +/- 3.2, -20 +/- 17%, p < 0.0001; 660 +/- 347 vs. 852 +/- 371, -24 +/- 18%, p < 0.0001). Mesenteric PI increased (2.72 +/- 0.67 vs. 2.28 +/- 0.56, +21 +/- 25%, p = 0.005). Hepatic, splenic, and renal PIs showed slight, not significant changes (1.42 +/- 0.41 vs. 1.38 +/- 0.32, p = NS; 1.05 +/- 0.23 vs. 0.99 +/- 0.21, p = NS; 1.24 +/- 0.26 vs. 1.19 +/- 0.20, p = NS, respectively). After the administration of isosorbide-5-mononitrate, PBV decreased (8.2 +/- 2.0 vs. 9.4 +/- 2.3, -12 +/- 13%, p = 0.006), while PBF did not modify (648 +/- 189 vs. 711 +/- 209, p = NS).(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 2","pages":"138-43"},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18667768","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