title: [Radiological evaluation of complications of implantable venous access port systems].
abstract: OBJECTIVE
  Clinical signs and symptoms sometimes throw suspicion on functional complications and venous thrombosis due to implantable venous access ports. Objective was to determine frequency of these problems using radiologic imaging.
  
  
  METHODS
  61 patients were examined by means of fluoroscopy. If indication was given we injected radiopaque (contrast) medium. In the case of suspected vascular thrombosis the radiological finding was verified by sonography, phlebography or by venous magnetic resonance imaging angiography.
  
  
  RESULTS
  Altogether 46 complications were documented in 37 out of 61 examined patients (61%). Occlusions of port-catheter were proved in 24 cases. It was the radiologically most frequently recorded complication (52%;) and found coincident with other problems in 9 patients (37%;). Pain frequently indicates break of catheters. Implantation of catheters into jugular and axillary veins predisposes to break of catheters just as port-catheters lateral implanted into subclavian veins ("pinch-off-sign").
  
  
  CONCLUSIONS
  Functional tests of venous access systems using fluoroscopy and phlebography give information that helps to decide if clinically problematic port-systems should be used furthermore. Directions of catheter which are predestined to complications should be avoided.
authors.affiliation: Klinik für Diagnostische Radiologie, Martin-Luther-Universität Halle-Wittenberg. andreas.schlueter@medizin.uni-halle.de
authors.forename: A
authors.initials: A
authors.lastname: Schlüter
authors.forename: K
authors.initials: K
authors.lastname: Stock
authors.forename: A
authors.initials: A
authors.lastname: von Poblozki
authors.forename: C
authors.initials: C
authors.lastname: Behrmann
authors.forename: A
authors.initials: A
authors.lastname: Jassoy
authors.forename: R P
authors.initials: RP
authors.lastname: Spielmann
mesh_terms: D002408:Catheters, Indwelling / Q000009:adverse effects*; D005069:Evaluation Studies as Topic; D005471:Fluoroscopy; D006801:Humans; D018810:Magnetic Resonance Angiography; D010690:Phlebography; D014463:Ultrasonography; D020246:Venous Thrombosis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology
vernacular_title: Radiologische Dokumentation von Komplikationen implantierbarer venöser Portsysteme.