Preoperative XXXX : comparison of miniprobe ultrasonography, spiral CT and MRI.

@entity1 @entity5 @entity957 @entity418 @entity420
AIM: To evaluate the value of miniprobe sonography (MPS), spiral CT and MR imaging (MRI) in the @entity5 and regional lymph node staging of @entity418 . METHODS: Eight-six @entity1 (56 @entity1 and 30 @entity1 ; age range of 39-73 years, mean 62 years) with @entity418 were staged preoperatively with imaging modalities. Of them, 81 (94 %) had @entity957 , 4(5 %) @entity420 , and 1(1 %) adenoacanthoma. Eleven @entity1 (12 %) had @entity5 of the upper one third, 41 (48 %) of the mid-esophagus and 34 (40 %) of the distal one third. Forty-one were examined by spiral CT in whom 13 were co-examined by MPS, and forty-five by MRI in whom 18 were also co-examined by MPS. These imaging results were compared with the findings of the histopathologic examination for resected specimens. RESULTS: In staging the depth of @entity5 growth, MPS was significantly more accurate (84 %) than spiral CT and MRI (68 % and 60 %, respectively, P<0.05). The specificity and sensitivity were 82 % and 85 % for MPS; 60 % and 69 % for spiral CT; and 40 % and 63 % for MRI, respectively. In staging regional lymph nodes, spiral CT was more accurate (78 %) than MPS and MRI (71 % and 64 %, respectively), but the difference was not statistically significant. The specificity and sensitivity were 79 % and 77 % for spiral CT; 75 % and 68 % for MPS; and 68 % and 62 % for MRI, respectively. CONCLUSION: MPS is superior to spiral CT or MRI for T staging, especially in early @entity418 . However, the three modalities have the similar accuracy in N staging. Spiral CT or MRI is helpful for the detection of far-distance metastasis in @entity418 .
