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©The Author(s) 2004.
World J Gastroenterol. Dec 1, 2004; 10(23): 3399-3404
Published online Dec 1, 2004. doi: 10.3748/wjg.v10.i23.3399
Published online Dec 1, 2004. doi: 10.3748/wjg.v10.i23.3399
Table 1 Accuracy of transabdominal US in assessing the depth of tumor invasion in 125 patients
| Stage | n | Staged by operative and pathological findings | |||
| T1 | T2 | T3 | T4 | ||
| T1 | 7 | 5 | 0 | 0 | 0 |
| T2 | 34 | 3 | 12 | 7 | 2 |
| T3 | 80 | 1 | 4 | 48 | 11 |
| T4 | 38 | 0 | 0 | 0 | 32 |
| Accuracy (%) | 55.6 (5/9) | 75.0 (12/16) | 87.3 (48/55) | 71.1 (32/45) | |
Table 2 Detection rate of tumor invasion with transabdominal US
| Involved organs | n | Cases detected with transabdominal US | Detection rate (%) |
| Pancreas | 31 | 24 | 77.4 |
| Liver | 7 | 5 | 71.4 |
| Spleen and hilum of spleen | 3 | 1 | 33.3 |
| Transverse colon | 3 | 1 | 33.3 |
| Diaphragm | 2 | 0 | 0 |
| Duodenum | 9 | 4 | 44.4 |
Table 3 Accuracy of transabdominal US in assessing lymph node metastasis in 106 patients
| Diagnosis with transabdominal US | Pathological findings (n) | |
| N+ | N0 | |
| N+ | 52 | 14 |
| N0 | 15 | 25 |
Table 4 Sonographic features of 46 benign and 48 malignant lymph nodes
| Sonographic feature | Pathologic findings | P | |
| Benign lymph nodes (%) | Malignant lymph nodes (%) | ||
| Length (cm) | 0.000 | ||
| < 0.5 | 0 | 0 | |
| 0.5-1.0 | 26 (56.5) | 9(18.8) | |
| 1.1-1.5 | 9 (19.6) | 16 (33.3) | |
| 1.6-2.0 | 9 (19.6) | 8 (16.7) | |
| ≥ 2.1 | 2 (4.3) | 15 (31.2) | |
| Length (cm) | 0.000 | ||
| < 0.5 | 0 | 0 | |
| 0.5-1.0 | 26 (56.5) | 9 (18.8) | |
| 1.1-1.5 | 9 (19.6) | 16 (33.3) | |
| 1.6-2.0 | 9 (19.6) | 8 (16.7) | |
| ≥ 2.1 | 2 (4.3) | 15 (31.2) | |
| Width (cm) | 0.005 | ||
| <0.5 | 5 (10.9) | 2 (4.2) | |
| 0.5-1.0 | 34 (73.9) | 22 (45.8) | |
| 1.1-1.5 | 4 (8.7) | 10 (20.8) | |
| 1.6-2.0 | 3 (6.5) | 11 (22.9) | |
| ≥ 2.1 | 0 (0) | 3 (6.3) | |
| Shape | |||
| Spindle | 9 (19.6) | 5 (10.4) | |
| Ovoid | 15 (32.6) | 10 (20.8) | |
| Round | 20 (43.5) | 17 (35.4) | |
| Irregular | 2 (4.3) | 8 (16.7) | 0.045 |
| Fusional | 0 (0) | 8 (16.7) | 0.006 |
| Border | |||
| Distinct | 34 (73.9) | 29 (60.4) | |
| Indistinct | 12 (26.1) | 13 (27.1) | |
| Infiltrative signs | 0 (0) | 6 (12.5) | 0.027 |
| Echogenicity | |||
| Hypoechoic | 40 (87.0) | 38 (79.1) | |
| Slightly hyperechoic | 6 (13.0) | 2 (4.2) | |
| Slightly hyperechoic | 0 | 8 (16.6) | 0.006 |
Table 5 Diagnostic results of 46 benign and 48 malignant lymph nodes
| Criterion | Sensitivity (%) | Specificity (%) |
| Length ≥ 1.1cm | 81.3 (39/48) | 56.5 (26/46) |
| ≥1.6 cm | 47.9 (23/48) | 76.1 (35/46) |
| ≥2.1 cm | 33.3 (15/48) | 95.7 (44/46) |
| Width ≥ 1.1 cm | 50.0 (24/48) | 84.8 (39/46) |
| ≥ 1.6 cm | 29.2 (14/48) | 93.5 (43/46) |
| Irregular | 16.7 (8/48) | 95.7 (44/46) |
| Fusional | 16.7 (8/48) | 100 (46/46) |
| Infiltrative signs | 12.5 (6/48) | 100 (46/46) |
| Inhomogenous | 16.7 (8/48) | 100 (46/46) |
- Citation: Liao SR, Dai Y, Huo L, Yan K, Zhang L, Zhang H, Gao W, Chen MH. Transabdominal ultrasonography in preoperative staging of gastric cancer. World J Gastroenterol 2004; 10(23): 3399-3404
- URL: https://www.wjgnet.com/1007-9327/full/v10/i23/3399.htm
- DOI: https://dx.doi.org/10.3748/wjg.v10.i23.3399