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Eur Radiol. 2003 Apr;13(4):695-9. Epub 2002 Sep 7.

Intraperitoneal distribution of ultrasound contrast medium imaged with B-mode ultrasound and colour-stimulated acoustic emission imaging.

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  • 1Institut für Radiologie, Campus Charité Mitte, Humboldt Universität, Schumannstrasse 20/21, 10098 Berlin, Germany.


Intraperitoneal port catheter systems for local delivery of cytotoxic drugs require imaging prior to chemotherapy to confirm homogenous distribution of an injected fluid in the entire peritoneal cavity. This study was performed to assess whether contrast-enhanced ultrasound (US) is a suitable imaging modality for this task. Twelve patients with peritoneal carcinosis and an implanted intraperitoneal port catheter system were studied before chemotherapy. Ultrasound examinations were performed after bolus injections of the microbubble contrast medium Levovist. Distribution of the contrast medium in the peritoneal cavity was imaged using B-mode US and colour-stimulated acoustic emission imaging (SAE). Contrast-enhanced CT imaging was used as term of reference for evaluating the US results. Distribution of the microbubbles in the peritoneal cavity was easily detected by both US methods. In 10 of 12 patients a free distribution in all abdominal quadrants was seen with both US techniques. In 2 of 12 patients, CT and US showed contrast medium limited to the perihepatic area. Therapy was stopped and surgical repositioning of the catheter was performed. Ultrasound after intraperitoneal injection of a microbubble contrast agent provides reliable information about the distribution of intraperitoneally injected fluid in the peritoneal cavity. This method is therefore well suited for imaging port catheter systems prior to chemotherapy.

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