title: The impact of intraoperative ultrasonography of the liver on the surgical strategy of patients with gastrointestinal malignancies and hepatic metastases.
abstract: Intraoperative ultrasonography (IOUS) of the liver is a very useful tool during surgery for gastrointestinal tumors or hepatic tumors. In a prospective study of 82 elective operations for 57 gastrointestinal tumors and 25 hepatic tumors or metastases, we compared IOUS with preoperative ultrasonography, CT-scanning and MRI. IOUS supplied additional information in 38% of the operations. In 22% of the cases, this had a major impact on the intraoperative strategy with an alteration of the procedure. IOUS has a higher detection rate of intrahepatic lesions, discriminates better between solid or cystic nature of the tumor and offers the possibility of performing a safe and radical hepatic resection by its ability to localize lesions in relation to vascular structures. IOUS is a safe and simple technique which will be more cost-effective than extensive preoperative evaluation of the liver. It provides a more complete clinical staging of patients for whom adjuvant therapy is considered after resection of a colorectal carcinoma.
authors.affiliation: Department of Surgery, Free University Hospital, Amsterdam, The Netherlands.
authors.forename: H
authors.initials: H
authors.lastname: Boutkan
authors.forename: W
authors.initials: W
authors.lastname: Luth
authors.forename: S
authors.initials: S
authors.lastname: Meyer
authors.forename: M
authors.initials: M
authors.lastname: Cuesta
authors.forename: E
authors.initials: E
authors.lastname: van Heuzen
authors.forename: W
authors.initials: W
authors.lastname: Prevoo
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004067:Digestive System Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D008099:Liver / Q000000981:diagnostic imaging* / Q000473:pathology; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography