Table 1 Characteristics of the eight included US studies
From: Imaging in assessing hepatic and peritoneal metastases of gastric cancer: a systematic review
Study (year, reference) | County | No. of patients | Transducer frequency (MHz) | Interpreter(s) | Reference standard |
|---|---|---|---|---|---|
Kim 1997 [21] | South Korea | 95 | 3.5 or 5 | Two radiologists independently | Surgical and pathological findings |
Stell 1996 [22] | United Kingdom | 103 | 3.5 | Experienced personnel | Histological examination |
Asencio 1997 [23] | Germany | 71 | NCD | NCD | Surgical and histologic evaluation |
Possik 1986 [24] | United States | 82 | NCD | NCD | Surgical and histologic evaluation |
Derchi 1983 [25] | United States | 21 | 3.5 | Two authors of the study | Surgical and pathological examization. |
Liao 2004 [26] | China | 125 | 3.5 or 6.0 | NCD | Operative and pathological examination |
Ozmen 2003 [27] | United States | 48 | NCD | NCD | Histological examination |
Kayaalp 2002 [28] | United Kingdom | 118 | NCD | A consultant radiologist | Histopathological examinations |