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Abdominal Imaging

, Volume 39, Issue 2, pp 424–431 | Cite as

Evaluation of transabdominal ultrasound after oral administration of an echoic cellulose-based gastric ultrasound contrast agent for demonstrating small gastric subepithelial masses

  • Zhijun Liu
  • Jintao Guo
  • Siyu Sun
  • Weidong RenEmail author
  • Shaoshan Tang
  • Limei Xie
  • Liping Huang
Article

Abstract

Purpose

To assess the role of transabdominal ultrasound after oral administration of an echoic cellulose-based gastric contrast agent (TUS-OCCA) for detection and characterization of small gastric subepithelial masses (≤3 cm) by comparison with endosonography (EUS).

Methods

Ninety-five patients with small gastric subepithelial masses detected by gastroscopy examination were enrolled. For each patient, TUS-OCCA was performed prior to EUS by a skilled examiner. TUS-OCCA diagnoses were compared with those of EUS.

Results

TUS-OCCA had a detection rate of 94% (89 of 95) in visualizing small gastric subepithelial masses previously detected by gastroscopy. The sizes of 6 undetected masses ranged from 7 to 12 mm (4 located at the fundus, 2 at the cardia). All of six patients whose lesions were undetected by TUS-OCCA were obese. The findings of gastric subepithelial masses demonstrated by TUS-OCCA were similar to that shown on EUS.

Conclusions

TUS-OCCA can provide useful information about small gastric subepithelial masses, especially for the patients who are not obese. It can be used to follow gastric submucosal tumors that are not excised.

Keywords

Stomach Subepithelial masses Cellulose Gastric ultrasound contrast agent Gastrointestinal stromal tumor 

Notes

Disclosures

The authors declare no conflicts of interest.

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Zhijun Liu
    • 1
  • Jintao Guo
    • 2
  • Siyu Sun
    • 2
  • Weidong Ren
    • 1
    Email author
  • Shaoshan Tang
    • 1
  • Limei Xie
    • 1
  • Liping Huang
    • 1
  1. 1.Ultrasound Department, Shengjing HospitalChina Medical UniversityShenyangChina
  2. 2.Endoscopy Center, Shengjing HospitalChina Medical UniversityShenyangChina

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