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  • 1
    Electronic Resource
    Electronic Resource
    0.5 T MRI of small renal masses: value of T2-weighted and Gd-DOTA-enhanced images (1993)
    Springer
    European radiology 3 (1993), S. 447-452 
    Details
    ISSN: 1432-1084
    Keywords: Gadolinium ; Kidney, benign tumours ; Kidney, cysts ; Kidney, MRI studies ; Kidney, neoplasms ; MRI, contrast enhancement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We compared the value of T2-weighted and Gd-DOTA-enhanced T1-weighted images for the detection and characterisation of 33 small renal masses (14 clear cell carcinomas, 6 angiomyolipomas, 3 angiomyomas, 4 adenomas, 3 papillary carcinomas, 3 oncocytomas, 1 haemorrhagic cyst). Dynamic enhanced MRI was performed to study the tumoral vascular supply (19 cases). MRI depicted all the masses more than 1 cm in diameter, but missed all the lesions less than 1 cm (4 false-negative). The results of T2-weighted images and Gd-DOTA-enhanced images were similar as regards detection; however, Gd-DOTA-enhanced images depicted more clearly the tumours smaller than 2 cm (11 cases). MRI enabled the characterisation of only 3 masses (2 angiomyolipomas, 1 haemorrhagic cyst). New MRI features are described for oncocytomas (low signal intensity on T1-weighted images, high signal intensity on T2-weighted images, early and marked enhancement on dynamic enhanced MRI). Dynamic enhanced MRI did not contribute to the differentiation of benign from malignant tumours.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221422
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Vascular rupture complicating transluminal angioplasty applied on a failed dialysis vascular access in a patient under chronic steroid therapy (1997)
    Springer
    European radiology 7 (1997), S. 313-315 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Veins ; Transluminal angioplasty ; Dialysis ; Shunt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report a case of venous rupture complicating percutaneous transluminal angioplasty (PTA) applied on a failed dialysis vascular access (VA) in a patient on chronic steroid therapy. This complication resulted in a rapidly growing hematoma which was successfully controlled by a prolonged reinflation of the balloon catheter at the angioplasty site. The absence of oversizing of the balloon catheter and the low inflation pressure at which the perforation occurred suggest a vessel fragility which was probably induced by a long-standing steroid therapy. In dialysis patients in whom steroid therapy does not represent an infrequent therapeutic modality, this potential risk of vascular rupture should be carefully weighted while treating VA stenoses with the use of PTA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050156
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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