The Value of Colour Duplex Sonography in the Assessment of Surgical Resectability of @entity788 . AIM: The aim of this study was to evaluate the assessment by modern @entity2996 ( @entity2996 ) concerning the relation between @entity5 and vessels including haemodynamic parameters in the main abdominal arteries and the portal system, and to evaluate the influence of these results on surgical decision making. METHOD: From January 1997 to October 1998, 146 @entity1 with a @entity5 of the pancreas were included in a prospective study. Tumour contact to vessels and to the retroperitoneum, data on the flow in the main abdominal arteries and the portal circulation (regional topography) as well as the detection of liver metastases, enlarged lymph nodes and peritoneal @entity189 were defined as representing criteria of resectability. The results were compared with the intraoperative situation and with the definite histological findings. RESULTS: In 57 resectable @entity5 , the portal system was found to be infiltrated by the @entity5 up to a length of 1.5 cm. The flow velocity reached between 4 and 53 cm/s (mean flow) and 9 to 105 cm/s (maximum flow). Out of 146 @entity5 , 89 were found as being non-resectable. In these cases, the measured parameters differed depending on the degree of @entity5 infiltration in to the portal circulation. We measured values from 0 to 96 cm/s (mean flow) and from 0 to 201 cm/s (maximum flow) with loss of breath-dependent modulation. The contact area between @entity5 and portal vessel was longer than 2 cm. Pathological flow in the main abdominal arteries was only found in 2 of 13 cases. The local situation was assessed correctly in 140 out of 146 cases by @entity2996 (sensitivity of 93.0 %, specificity of 97.8 %, positive predictive value of 96.4 %, negative predictive value of 95.6 %). Regarding the complete oncological status (local situation, metastases, lymph node @entity6378 ), a sensitivity of 82.5 % and a specificity of 92.1 % (positive predictive value of 87.0 %, negative predictive value of 89.1 %) was found. CONCLUSION: Modern @entity2996 can reliably assess the resectability of @entity5 by the evaluation of morphological and haemodynamic parameters. There are still difficulties in the assessment of lymph node involvement as well as in the detection of small liver metastases and of peritoneal @entity189 without @entity843 .

[The value of colour duplex sonography in the assessment of surgical resectability of XXXX ].

@entity1 :: ('9606', 'Species') :: ['patients'] @entity788 :: ('MESH:D010190', 'Disease') :: ['Pancreatic Tumors'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'tumours', 'pancreatic tumours', 'tumour'] @entity843 :: ('MESH:D001201', 'Disease') :: ['ascites'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinomatosis'] @entity6378 :: ('MESH:D010532', 'Disease') :: ['involvement and peritoneal carcinomatosis'] @entity2996 :: ('MESH:C564543', 'Disease') :: ['colour duplex imaging', 'CDI']
@entity788 :: (MESH:D010190,Disease) :: ['pancreatic tumors']
