20-MHz ultrasonic probe to identify early gastric cancer suitable for endoscopic mucosal resection

B. S. Sheu, P. N. Cheng, Y. C. Chang, C. H. Chein, X. Z. Lin

研究成果: Article

摘要

Background: Early gastric cancers (EGCs) are defined as those with malignant growths in the mucosa (T1m) and submucosa (T1sm). T1m can be treated by endoscopic mucosal resection (EMR), thus avoiding gastrectomy. The aim here was to determine whether the use of a 20-MHz endoscopic ultrasonic probe (EUSP) could aid in the differentiation of T1m EGC for EMR, and T1sm for gastrectomy. Materials and Methods: From September 1997 to February 1998, five cases of EGC were enrolled to receive tumor staging by endoscopic ultrasonography using an EUSP inserted via the biopsy channel of an endoscope. Based on the tumor size and stage, determined by use of the EUSP and categorized as T1m or T1sm, EMR was carried out for suitable T1m cancers using a two-channel method. In those cases unsuitable for EMR, open surgery was performed. The resected specimens from both EMR and open surgery were submitted for histopathologic confirmatory staging. Results: Three of the five EGC cases, including two correctly staged as T1m and one equivocally overstaged as T1sm using the EUSP, underwent EMR. All three cases were confirmed as being T1m by pathology and curatively resected by EMR. The remaining two cases, including one understaged on endoscopy, were both correctly staged as T1sm using the EUSP. Conclusion: The 20-MHz EUSP is an effective aid in endoscopic staging for the depth of tumor invasion in EGC and in the selection of mucosal EGC for EMR and submucosal EGC for gastrectomy. Whenever equivocal staging is encountered using an EUSP, EMR is advised for both the diagnostic and therapeutic benefits.

原文English
頁(從 - 到)169-174
頁數6
期刊Journal of Medical Ultrasound
6
發行號4
出版狀態Published - 1998 一月 1

指紋

Ultrasonics
Stomach Neoplasms
Gastrectomy
Neoplasm Staging
Endoscopic Mucosal Resection
Endosonography
Endoscopes
Endoscopy
Neoplasms
Mucous Membrane
Pathology
Biopsy
Growth

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

引用此文

@article{6b263d3bf60f4faa845ec4a5a9f160c7,
title = "20-MHz ultrasonic probe to identify early gastric cancer suitable for endoscopic mucosal resection",
abstract = "Background: Early gastric cancers (EGCs) are defined as those with malignant growths in the mucosa (T1m) and submucosa (T1sm). T1m can be treated by endoscopic mucosal resection (EMR), thus avoiding gastrectomy. The aim here was to determine whether the use of a 20-MHz endoscopic ultrasonic probe (EUSP) could aid in the differentiation of T1m EGC for EMR, and T1sm for gastrectomy. Materials and Methods: From September 1997 to February 1998, five cases of EGC were enrolled to receive tumor staging by endoscopic ultrasonography using an EUSP inserted via the biopsy channel of an endoscope. Based on the tumor size and stage, determined by use of the EUSP and categorized as T1m or T1sm, EMR was carried out for suitable T1m cancers using a two-channel method. In those cases unsuitable for EMR, open surgery was performed. The resected specimens from both EMR and open surgery were submitted for histopathologic confirmatory staging. Results: Three of the five EGC cases, including two correctly staged as T1m and one equivocally overstaged as T1sm using the EUSP, underwent EMR. All three cases were confirmed as being T1m by pathology and curatively resected by EMR. The remaining two cases, including one understaged on endoscopy, were both correctly staged as T1sm using the EUSP. Conclusion: The 20-MHz EUSP is an effective aid in endoscopic staging for the depth of tumor invasion in EGC and in the selection of mucosal EGC for EMR and submucosal EGC for gastrectomy. Whenever equivocal staging is encountered using an EUSP, EMR is advised for both the diagnostic and therapeutic benefits.",
author = "Sheu, {B. S.} and Cheng, {P. N.} and Chang, {Y. C.} and Chein, {C. H.} and Lin, {X. Z.}",
year = "1998",
month = "1",
day = "1",
language = "English",
volume = "6",
pages = "169--174",
journal = "Journal of Medical Ultrasound",
issn = "0929-6441",
publisher = "Elsevier (Singapore) Pte Ltd",
number = "4",

}

TY - JOUR

T1 - 20-MHz ultrasonic probe to identify early gastric cancer suitable for endoscopic mucosal resection

AU - Sheu, B. S.

AU - Cheng, P. N.

AU - Chang, Y. C.

AU - Chein, C. H.

AU - Lin, X. Z.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - Background: Early gastric cancers (EGCs) are defined as those with malignant growths in the mucosa (T1m) and submucosa (T1sm). T1m can be treated by endoscopic mucosal resection (EMR), thus avoiding gastrectomy. The aim here was to determine whether the use of a 20-MHz endoscopic ultrasonic probe (EUSP) could aid in the differentiation of T1m EGC for EMR, and T1sm for gastrectomy. Materials and Methods: From September 1997 to February 1998, five cases of EGC were enrolled to receive tumor staging by endoscopic ultrasonography using an EUSP inserted via the biopsy channel of an endoscope. Based on the tumor size and stage, determined by use of the EUSP and categorized as T1m or T1sm, EMR was carried out for suitable T1m cancers using a two-channel method. In those cases unsuitable for EMR, open surgery was performed. The resected specimens from both EMR and open surgery were submitted for histopathologic confirmatory staging. Results: Three of the five EGC cases, including two correctly staged as T1m and one equivocally overstaged as T1sm using the EUSP, underwent EMR. All three cases were confirmed as being T1m by pathology and curatively resected by EMR. The remaining two cases, including one understaged on endoscopy, were both correctly staged as T1sm using the EUSP. Conclusion: The 20-MHz EUSP is an effective aid in endoscopic staging for the depth of tumor invasion in EGC and in the selection of mucosal EGC for EMR and submucosal EGC for gastrectomy. Whenever equivocal staging is encountered using an EUSP, EMR is advised for both the diagnostic and therapeutic benefits.

AB - Background: Early gastric cancers (EGCs) are defined as those with malignant growths in the mucosa (T1m) and submucosa (T1sm). T1m can be treated by endoscopic mucosal resection (EMR), thus avoiding gastrectomy. The aim here was to determine whether the use of a 20-MHz endoscopic ultrasonic probe (EUSP) could aid in the differentiation of T1m EGC for EMR, and T1sm for gastrectomy. Materials and Methods: From September 1997 to February 1998, five cases of EGC were enrolled to receive tumor staging by endoscopic ultrasonography using an EUSP inserted via the biopsy channel of an endoscope. Based on the tumor size and stage, determined by use of the EUSP and categorized as T1m or T1sm, EMR was carried out for suitable T1m cancers using a two-channel method. In those cases unsuitable for EMR, open surgery was performed. The resected specimens from both EMR and open surgery were submitted for histopathologic confirmatory staging. Results: Three of the five EGC cases, including two correctly staged as T1m and one equivocally overstaged as T1sm using the EUSP, underwent EMR. All three cases were confirmed as being T1m by pathology and curatively resected by EMR. The remaining two cases, including one understaged on endoscopy, were both correctly staged as T1sm using the EUSP. Conclusion: The 20-MHz EUSP is an effective aid in endoscopic staging for the depth of tumor invasion in EGC and in the selection of mucosal EGC for EMR and submucosal EGC for gastrectomy. Whenever equivocal staging is encountered using an EUSP, EMR is advised for both the diagnostic and therapeutic benefits.

UR - http://www.scopus.com/inward/record.url?scp=0032433994&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032433994&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032433994

VL - 6

SP - 169

EP - 174

JO - Journal of Medical Ultrasound

JF - Journal of Medical Ultrasound

SN - 0929-6441

IS - 4

ER -