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  • 1
    Electronic Resource
    Electronic Resource
    Hyperintense benign liver lesions on spin-echo T1-weighted MR images: pathologic correlations (1997)
    Springer
    Abdominal imaging 22 (1997), S. 410 -417 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Magnetic resonance (MR), fat suppression—Liver, MR—Liver neoplasms.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: To determine the incidence of hyperintensity on T1-weighted spin echo (SE) images in benign liver lesions, value of fat-suppressed magnetic resonance (MR) imaging for the detection of fat within these lesions, and the causes of hyperintensity by correlation to pathologic examinations. Methods: Five hundred forty-nine patients with 805 benign liver lesions including 585 hemangiomas, 188 focal nodular hyperplasias (FNHs), 14 hepatic adenomas (HAs), 14 focal fatty infiltrations (FFIs), two biliary cystadenomas, and two hemorrhagic cysts were examined by T2-weighted and T1-weighted SE MR imaging. For hyperintense lesions on T1-weighted SE images, fat-suppressed images were obtained by selective presaturation of fat. Results: Thirty-two lesions (four FNHs, 10 HAs, 14 FFIs, two biliary cystadenomas, and two hemorrhagic cysts) appeared hyperintense on T1-weighted SE images; 21 of these became hypointense on the fat-suppressed T1 weighted SE images (one FNH, six HAs, and 14 FFIs) and contained fat at pathological examination. The other 11 lesions remained hyperintense on fat-suppressed T1-weighted SE images and had no fat deposition. Causes of hyperintensity in these cases were sinusoidal dilatation, copper deposition, hemorrhage, and high protein content. Conclusion: Among benign liver lesions, hyperintensity on T1-weighted SE images is rare (3.9%). Causes of this hyperintensity are fat deposition, copper accumulation, sinusoidal dilatation, hemorrhage, and high protein content. Fat-suppressed imaging can distinguish fat deposition from other causes of hyperintensity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900222
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Intrapleural administration of streptokinase in complicated purulent pleural effusion: A CT-guided strategy (1996)
    Springer
    Intensive care medicine 22 (1996), S. 1351-1353 
    Details
    ISSN: 1432-1238
    Keywords: Empyema ; Pleural ; Computed tomography scan ; Fibrinolytics ; Streptokinase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective To determine the usefulness and the results of a strategy using intrapleural streptokinase (SK) instillation guided by repeated computed tomography (CT) scan examinations in pleural empyemas unresponsive to chest tube drainage. Design A retrospective chart review. Setting The medical Intensive Care Unit and Department of Radiology, in a university hospital. Patients Sixteen patients with empyema who had a persistent pleural effusion despite drainage, among 37 patients with infectious pleural effusion. Interventions In the 16 patients, CT examination was performed before and at least once after SK. Intrapleural SK was instilled, either through the chest tube or via a needle puncture, according to the CT scan, results. Results The first CT scan confirmed a persistent effusion in all, showing a multiloculated effusion in 13 patients, and an ectopic loculus in one. The first SK instillation resulted in a dramatic increase of fluid drained per day (from 68±28 ml to 567±262 ml;p〈0.001), leading to complete resolution in 11 patients, while the others required a second CT scanguided procedure. In one, the chest tube was misplaced, while in two, transparietal injection was needed. Finally, a complete resolution was observed in 14 (87.5%) of the patients. Two patients had a poor initial response to SK and were eventually scheduled for video-thoracoscopy. A single episode of chills and fever was observed among 32 SK instillations. Conclusion CT-guided SK instillation in pleural empyema appears to be safe, and allowed complete resolution in 87.5% of our patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01709550
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Computed tomography and post-laparotomy intra-abdominal abscesses (1982)
    Springer
    Intensive care medicine 8 (1982), S. 193-196 
    Details
    ISSN: 1432-1238
    Keywords: Intra abdominal abscess ; Abdominal surgery ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Thirty-one patients were prospectively studied and had abdominal computed tomography for post laparotomy sepsis. Computed tomography is of particular interest in seriously ill post-operative patients, 15 of our patients were on ventilators, and it enabled diagnosis and localization of abscesses in 15 patients. Drainage could therefore be achieved via a limited surgical approach, and extensive laparotomy was avoided. Of 16 patients without abscess, the abdominal computed tomogram was negative in 14 cases and there were two false positives. The overall accuracy was 0.94 with a sensitivity of 1 and a specificity of 0.88. The ability to screen the whole abdomen and exactly localize the lesion are the advantages of this non-invasive method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01725737
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Evaluation of Doppler examination for diagnosis of catheter-related deep vein thrombosis (1989)
    Springer
    Intensive care medicine 15 (1989), S. 238-240 
    Details
    ISSN: 1432-1238
    Keywords: Doppler equipment ; Central venous catheters ; Complications ; Venous thrombosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The accuracy of Doppler examination was evaluated for the diagnosis of catheter-related venous thrombosis in 40 postoperative patients. Deep vein thrombosis was detected by venography in 15 patients and confirmed by the Doppler technique in a double blind study. Only one false-positive and one false-negative result were obtained with the Doppler technique. This technique appears to be valuable for the early diagnosis of catheter-related vein thrombosis, even in asymptomatic patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00271058
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Intrapleural administration of streptokinase in complicated purulent pleural effusion: a CT-guided strategy (1996)
    Springer
    Intensive care medicine 22 (1996), S. 1351-1353 
    Details
    ISSN: 1432-1238
    Keywords: Key words Empyema ; Pleural ; Computed tomography scan ; Fibrinolytics ; Streptokinase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To determine the usefulness and the results of a strategy using intrapleural streptokinase (SK) instillation guided by repeated computed tomography (CT) scan examinations in pleural empyemas unresponsive to chest tube drainage. Design: A retrospective chart review. Setting: The medical Intensive Care Unit and Department of Radiology, in a university hospital. Patients: Sixteen patients with empyema who had a persistent pleural effusion despite drainage, among 37 patients with infectious pleural effusion. Interventions: In the 16 patients, CT examination was performed before and at least once after SK. Intrapleural SK was instilled, either through the chest tube or via a needle puncture, according to the CT scan results. Results: The first CT scan confirmed a persistent effusion in all, showing a multiloculated effusion in 13 patients, and an ectopic loculus in one. The first SK instillation resulted in a dramatic increase of fluid drained per day (from 68±28 ml to 567±262 ml; p〈0.001), leading to complete resolution in 11 patients, while the others required a second CT scan-guided procedure. In one, the chest tube was misplaced, while in two, transparietal injection was needed. Finally, a complete resolution was observed in 14 (87.5%) of the patients. Two patients had a poor initial response to SK and were eventually scheduled for video-thoracoscopy. A single episode of chills and fever was observed among 32 SK instillations. Conclusion: CT-guided SK instillation in pleural empyema appears to be safe, and allowed complete resolution in 87.5% of our patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01709550
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Benign and malignant hepatocellular tumors: evaluation of tumoral enhancement after mangafodipir trisodium injection on MR imaging (1999)
    Springer
    European radiology 9 (1999), S. 444-449 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Contrast media ; Manganese compounds ; Liver ; MR imaging ; Contrast enhancement ; Tumors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this work was to study the ability of mangafodipir trisodium (Mn-DPDP)-enhanced MR imaging in differentiating malignant from benign hepatocellular tumors. Eleven patients with pathologically proved hepatocellular carcinomas, six with focal nodular hyperplasias, and one with a single hepatocellular adenoma were examined by spin-echo and gradient-echo T1-weighted sequences before, 1 h after, and 24 h after intravenous injection of Mn-DPDP (5 μmol/kg). Quantitative analysis including enhancement and lesion-to-liver contrast-to-noise ratio, and qualitative analysis including the presence of a central area and a capsule were done on pre- and post-Mn-DPDP-enhanced images. Enhancement was observed in all the tumors with significant improvement (p 〈 0.05) in contrast-to-noise ratio 1 h after, and 24 h after intravenous injection of Mn-DPDP. There were no significant differences in the mean enhancement and the mean contrast-to-noise ratio (CNR) between benign and malignant tumors. No enhancement was seen within internal areas observed in 7 hepatocellular carcinomas, and in 5 focal nodular hyperplasias, and within capsules which were observed in 9 hepatocellular carcinomas. In our study, Mn-DPDP increased CNR of both benign and malignant tumors but did not enable differentiation between benign and malignant tumors of hepatocellular nature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050689
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of D-dimer testing on the diagnostic strategy of suspected pulmonary embolism: an observational study of practice patterns and costs (2000)
    Springer
    European radiology 10 (2000), S. S433 
    Details
    ISSN: 1432-1084
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014119
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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