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Factors affecting the ability of abdominal ultrasonography to detect focal pancreatic lesions identified using endoscopic ultrasonography

Ultrasonography 2020년 39권 3호 p.247 ~ 256
최서연, 김정훈, 은효원, 류화성,
소속 상세정보
최서연 ( Choi Seo-Youn ) - Soonchunhyang University Bucheon Hospital Department of Radiology
김정훈 ( Kim Jung-Hoon ) - Seoul National University Hospital Department of Radiology
은효원 ( Eun Hyo-Won ) - Samsung Medical Center Department of Radiology
류화성 ( Ryu Hwa-Seong ) - Pusan National University Yangsan Hospital Department of Radiology

Abstract


Purpose: This study was conducted to determine which factors influence the ability of abdominal ultrasonography (US) to detect focal pancreatic lesions identified using endoscopic ultrasonography (EUS).

Methods: In this study, 338 consecutive patients with focal pancreatic lesions (cyst, n=253; adenocarcinoma, n=54; pancreatic neuroendocrine tumor, n=24; solid pseudopapillary neoplasm, n=4; intrapancreatic accessory spleen, n=1; metastasis, n=1; and lymphoma, n=1) detected by EUS who underwent US were enrolled. We reviewed their radiologic reports and assessed the presence or absence of a focal lesion, the multiplicity of the lesions, and their size and location on US. We evaluated how these parameters differed depending on whether the lesion was solid or cystic. Univariate and multivariate logistic regression analysis were performed.

Results: The overall detection rate of focal pancreatic lesions by US was 61.5% (208 of 338). Using US, the detection rate of cystic lesions was 58.5% (148 of 253), while that of solid lesions was 70.6% (60 of 85). In the univariate analysis, location in the neck or body, solid characteristics, and a relatively large size (15.50±10.08 mm vs. 23.09±12.93 mm) were associated with a significantly higher detection rate (P<0.001, P=0.047, and P<0.001, respectively). In the multivariate analysis, location in the neck or body (odds ratio [OR], 3.238; 95% confidence interval [CI], 1.926 to 5.443; P<0.001) and size (OR, 1.070; 95% CI, 1.044 to 1.096; P<0.001) were proven to be significant predictors of detectability (P<0.001).

Conclusion: US is useful for detecting focal pancreatic lesions, especially when they are located in the neck or body and are relatively large.

키워드

Pancreas; Ultrasonography; Neoplasms; Cysts; Endoscopy

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