[Diagnostic and application value of 64-slice spiral CT scanning in preoperative staging of esophageal cancer].

Objective: To investigate the diagnostic and application value of pre-operative 64-slice spiral CT evaluation in operation selection for esophagus cancer.

Methods: Multi-slice computed tomography (MSCT) was conducted in 50 patients with esophageal cancer before operation, using the work station for after-treatment to get CT virtual endoscopy (CTVE), multiplanar reconstruction (MRP), shaded surface display (SSD) and Raysum images, and combined with the transect images to record the preoperative MSCT staging and to predict the operation scheme, and compared with the postoperative pathological staging and the actual operational plan.

Results: The diagnostic sensitivity of MSCT for preoperative T staging was 100.

[Biological relativity of imaging of CT perfusion for pancreases to pancreatic cancer].

Objective: To explore the relationships between perfusion values of pancreatic cancers and the microvessel density of tumors (MVD) and vessel endothelial growth factor (VEGF), and the clinical value of multiple-slice spiral CT perfusion imaging in diagnosing pancreatic cancers.

Methods: Forty-two people with normal pancreas and eighteen patients with pancreatic cancers underwent multiple-slice spiral CT perfusion examinations. The time-density curve (TDC) of the region of interest (ROI) was drawn with the software equipped in the spiral CT.