Table 2.
The basic information of the included studies
| Author | Year | Country | PL (C/E) | Design(R/P) | Blind | Number | Gender(F/M) | Average age ±SD (years) | TNM edition | Agents | Machine | Scheme(D/O) | ≤T1 VS ≥T2 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TP | FP | FN | TN | |||||||||||||
| Cheng-long Wang | 2009 | China | C | R | DB | 59 | 24/38 | 56.0 ± 11.4 | UICC 6th | Contrast medium | Acuson Sequoia 512 | O | 2 | 1 | 1 | 55 |
| D | 2 | 0 | 1 | 56 | ||||||||||||
| Jian Cui | 2010 | China | C | R | DB | 59 | N | N | UICC 6th | water | Acuson Sequoia 512 | O | 2 | 15 | 1 | 41 |
| D | 2 | 6 | 1 | 50 | ||||||||||||
| Kengo Satoa | 2017 | Japan | E | R | DB | N | N | N | The Japanese versionc | Water | APLIO XG/SSA-790A, APLIO 500 TUS一A500 | O | 89 | 13 | 11 | 79 |
| Shuxiang Zhang | 2018 | China | E | R | DB | 72 | 27/45 | 46.9±11.3 | UICC 8th | Contrast medium | GE Voluson730 | O | 14 | 2 | 6 | 50 |
| Ping He | 2019 | China | E | R | DB | 54 | 18/36 | 61±9.70 | AJCC 8th | water | Philips iU22 | D | 7 | 0 | 1 | 46 |
| Q.Z. Gai | 2021 | China | E | R | DB | 109 | 41/68 | 51.37±11.45 | AJCC 8th | Contrast medium | Philips iU22 | O | 20 | 2 | 5 | 82 |
| Zhixiang Gao | 2022 | China | E | R | DB | 46 | N | N | N | Water | Philips iU22 | O | 3 | 3 | 0 | 40 |
| LING-LING Wu | 2023 | China | E | P | DB | 108 | 29/79 | 61.7±11.2 | AJCC 8th | Contrast medium | GE LOGIQ E9 | O | 16 | 3 | 3 | 86 |
| Liang Wang | 2019 | China | E | R | DB | 158 | 52/106 | 59.5±10.6 | N | Contrast medium | Acuson Sequoia 512 | D | 20 | 3 | 12 | 123 |
| Junling Wang | 2021 | China | E | R | DB | 206 | 95/111 | 59.7±11.3 | AJCC 8th | Contrast medium | Acuson Sequoia 512 | D | 10 | 3 | 1 | 192 |
| Tao Yu | 2015 | China | E | R | DB | 40 | 13/27 | 49(25~73)b | AJCC 7th | Contrast medium | GE Logiq E9 | O | 5 | 1 | 0 | 34 |
| Zhijun Liu | 2015 | China | E | P | DB | 264 | N | N | N | Contrast medium | Toshiba Aplio 400 | O | 32 | 4 | 4 | 224 |
| Sheng-Ri Liao | 2004 | China | E | R | DB | 125 | 47/78 | N | AJCC 6th | Water | Toshiba 6000, Aloka 2000, DU-6 | O | 5 | 2 | 4 | 114 |
| Sainan Wang | 2022 | China | E | R | DB | 50 | 28/22 | 25.5±25 | N | Contrast medium | MINDRAY Resona 7T | O | 8 | 0 | 4 | 38 |
aThis study included 190 patients with a total of 200 lesions, of which 8 lesions were unclear
bMedian age (range)
cThe TNM criteria of the Japanese Classification of Gastric Carcinoma
PL publication language, SD Standard deviation, C Chinese, E English, P Prospective study, R Retrospective study, DB Double blind design, N Not unclear, TP True positive, FP False positive, FN False negative, TN True negative, UICC Union for International Cancer Control, AJCC American Joint Committee on Cancer, D Double contrast enhanced gastric ultrasonograp, O Oral contrast-enhanced gastric ultrasonography