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Evaluation of the Feasibility and Efficacy of Forward-Viewing Endoscopic Ultrasound.

Lee S, Seo DW, Choi JH, Park do H, Lee SS, Lee SK, Kim MH - Gut Liver (2015)

Bottom Line: In subepithelial lesions of the stomach and duodenum, the visualization time (98.8±62.2 seconds vs 139.0±66.6 seconds, p=0.008) and image quality (4.1±1.3 vs 3.3±1.7, p=0.02) of FV-EUS were significantly superior to OV-EUS.FV-EUS may increase the ease of access to gastrointestinal subepithelial lesions compared to conventional OV-EUS.The performance of FV-EUS for evaluating pancreatobiliary diseases and performing interventions was comparable to conventional OV-EUS.

View Article: PubMed Central - PubMed

Affiliation: Division of Gastroenterology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

ABSTRACT

Background/aims: We aimed to evaluate the feasibility and efficacy of a forward-viewing linear endoscopic ultrasound (FV-EUS) in diagnostic EUS procedures compared to standard oblique-viewing EUS (OV-EUS).

Methods: This study was a prospective, randomized study that permitted cross-over. Fifty-one patients with subepithelial pancreatobiliary and upper gastrointestinal lesions underwent FV-EUS and OV-EUS sequentially, in random order. The EUS visualization was performed by a novice endosonographer, and the image quality of specific lesions was scored by an expert endosonographer. If fine-needle aspiration (FNA) was indicated, it was performed using both echoendoscopes by an expert endosonographer.

Results: Both of the EUS procedures had similar visualization times and image quality. In general, the visualization time was inversely related to the diameter of the specific lesions. In subepithelial lesions of the stomach and duodenum, the visualization time (98.8±62.2 seconds vs 139.0±66.6 seconds, p=0.008) and image quality (4.1±1.3 vs 3.3±1.7, p=0.02) of FV-EUS were significantly superior to OV-EUS. FV-EUS-guided FNA of pancreatic masses was successful in seven patients (87.5%).

Conclusions: FV-EUS may increase the ease of access to gastrointestinal subepithelial lesions compared to conventional OV-EUS. The performance of FV-EUS for evaluating pancreatobiliary diseases and performing interventions was comparable to conventional OV-EUS.

No MeSH data available.


Related in: MedlinePlus

Flow chart of the study design.
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f1-gnl-09-679: Flow chart of the study design.

Mentions: Between December 2012 and March 2013, patients referred for evaluation of pancreaticobiliary diseases and GI subepithelial lesions were prospectively enrolled in the study (Fig. 1). The exclusion criteria were as follows: pregnancy, bleeding tendency (prothrombin time INR >1.5 or platelet <80,000/μL), and critically ill patients. In the study period, 62 patients were enrolled and 11 patients refused participation. Study approval was provided by the Ethics Committees of the Asan Medical Center, University of Ulsan College of Medicine. Written informed consent for participation was obtained from all enrolled patients.


Evaluation of the Feasibility and Efficacy of Forward-Viewing Endoscopic Ultrasound.

Lee S, Seo DW, Choi JH, Park do H, Lee SS, Lee SK, Kim MH - Gut Liver (2015)

Flow chart of the study design.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4562787&req=5

f1-gnl-09-679: Flow chart of the study design.
Mentions: Between December 2012 and March 2013, patients referred for evaluation of pancreaticobiliary diseases and GI subepithelial lesions were prospectively enrolled in the study (Fig. 1). The exclusion criteria were as follows: pregnancy, bleeding tendency (prothrombin time INR >1.5 or platelet <80,000/μL), and critically ill patients. In the study period, 62 patients were enrolled and 11 patients refused participation. Study approval was provided by the Ethics Committees of the Asan Medical Center, University of Ulsan College of Medicine. Written informed consent for participation was obtained from all enrolled patients.

Bottom Line: In subepithelial lesions of the stomach and duodenum, the visualization time (98.8±62.2 seconds vs 139.0±66.6 seconds, p=0.008) and image quality (4.1±1.3 vs 3.3±1.7, p=0.02) of FV-EUS were significantly superior to OV-EUS.FV-EUS may increase the ease of access to gastrointestinal subepithelial lesions compared to conventional OV-EUS.The performance of FV-EUS for evaluating pancreatobiliary diseases and performing interventions was comparable to conventional OV-EUS.

View Article: PubMed Central - PubMed

Affiliation: Division of Gastroenterology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

ABSTRACT

Background/aims: We aimed to evaluate the feasibility and efficacy of a forward-viewing linear endoscopic ultrasound (FV-EUS) in diagnostic EUS procedures compared to standard oblique-viewing EUS (OV-EUS).

Methods: This study was a prospective, randomized study that permitted cross-over. Fifty-one patients with subepithelial pancreatobiliary and upper gastrointestinal lesions underwent FV-EUS and OV-EUS sequentially, in random order. The EUS visualization was performed by a novice endosonographer, and the image quality of specific lesions was scored by an expert endosonographer. If fine-needle aspiration (FNA) was indicated, it was performed using both echoendoscopes by an expert endosonographer.

Results: Both of the EUS procedures had similar visualization times and image quality. In general, the visualization time was inversely related to the diameter of the specific lesions. In subepithelial lesions of the stomach and duodenum, the visualization time (98.8±62.2 seconds vs 139.0±66.6 seconds, p=0.008) and image quality (4.1±1.3 vs 3.3±1.7, p=0.02) of FV-EUS were significantly superior to OV-EUS. FV-EUS-guided FNA of pancreatic masses was successful in seven patients (87.5%).

Conclusions: FV-EUS may increase the ease of access to gastrointestinal subepithelial lesions compared to conventional OV-EUS. The performance of FV-EUS for evaluating pancreatobiliary diseases and performing interventions was comparable to conventional OV-EUS.

No MeSH data available.


Related in: MedlinePlus