الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The liver is the most common site of metastatic disease. Metastatic liver disease is common in most gastrointestinal malignancies, with patient survival being highly dependent on control of metastatic disease mandating accurate mapping of the hepatic deposits.
IOUS has proven accuracy for the detection of liver metastases, with reported sensitivity of 93.8%, specificity of 94.4%, positive predictive value of 92.0% and negative predictive value of 95.7%. Intraoperative ultrasound (IOUS) provides dynamic real-time imaging with an immediate impact on the surgical approach. Improved disease staging can be made with a view to resection and/or ablation, at the same sitting. IOUS identifies undetected preoperative liver lesions measuring 1 cm or less in diameter (5-15% more lesions than preoperative imaging).
The aim of this work was to evaluate the role of intra-operative ultrasound in the detection of hepatic deposits in intra-abdominal malignancies with special emphasis on its accuracy, sensitivity, specificity and cost effectiveness.
This study was carried out on thirty patients who were admitted to the Gastrointestinal Surgery Unit, Main Alexandria University Hospital with intra-abdominal malignancies for whom elective open surgical intervention was recommended in the period from 1st of September 2014 till the 31th of March 2016.
The current study has proved that IOUS demonstrates superior lesion detection over the various non-invasive preoperative imaging modalities causing significant impact on change of the planned surgical strategy.