Abstract:
BACKGROUND:Initial clinical applications have shown that US elastography might be able to distinguish tissues because of their specific consistency. OBJECTIVE:(1) To investigate the feasibility of EUS elastography of the pancreas and (2) to describe elastographic patterns of the normal pancreas and the pancreas affected by inflammatory or focal disease. DESIGN:Prospective single-center study. SETTING:Academic center of the University of Witten/Herdecke. PATIENTS:Twenty patients with normal pancreas, 20 patients with chronic pancreatitis, and 33 patients with focal pancreatic lesion, histologically later proven in 32 of these 33 cases. INTERVENTIONS:Commercially available US equipment was used. The elasticity of tissue was reconstructed in real time within a sample area and was translated into a color scale imaging relative tissue elasticity within this area. Representative loops of at least 20 seconds were recorded regarding each region of interest. RESULTS:Adequate elastographic recordings could be obtained in all 73 patients. Patients with hypoechoic and intermediately echogenic normal pancreas revealed a relatively homogeneous elastographic pattern. Thirty-one focal lesions, including 30 neoplasms and most of the chronically inflamed pancreata had a honeycomb pattern dominated by hard strands. This pattern showed analogies to the histologic structure of 10 resected tumors. Other patients with chronic pancreatitis and those with hyperechoic healthy pancreas had miscellaneous elastographic appearances. CONCLUSIONS:EUS elastography of the pancreas is feasible and produces plausible results. The examination of homogeneous tissue is impaired by the relative scale used. Chronic pancreatitis and hard tumors cannot be distinguished by elastography, probably because of their similar fibrous structure.
journal_name
Gastrointest Endoscjournal_title
Gastrointestinal endoscopyauthors
Janssen J,Schlörer E,Greiner Ldoi
10.1016/j.gie.2006.12.057subject
Has Abstractpub_date
2007-06-01 00:00:00pages
971-8issue
7eissn
0016-5107issn
1097-6779pii
S0016-5107(07)00006-5journal_volume
65pub_type
杂志文章abstract:BACKGROUND:Colon capsule endoscopy (CCE) represents a noninvasive technology that allows visualization of the colon without requiring sedation and air insufflation. A second-generation colon capsule endoscopy system (PillCam Colon 2) (CCE-2) was developed to increase sensitivity for colorectal polyp detection compared ...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,多中心研究
doi:10.1016/j.gie.2011.03.1125
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:Dysplasia and early cancer of the upper gastrointestinal (GI) tract often are undetected at white-light endoscopy. We describe oral administration of 5-aminolevulinic acid for the in vivo photodynamic diagnosis of premalignant and malignant lesions during endoscopy. METHODS:Four patients with known gastric ...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(99)70232-4
更新日期:1999-08-01 00:00:00
abstract:BACKGROUND:There is a significant interest in combination therapy using endoscopic epinephrine injection and thermal coagulation for nonvariceal hemostasis. The purpose of the study was to compare the relative effectiveness, ease of use, and safety of new Injection Gold Probes to other hemostasis techniques in three ra...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(98)70042-2
更新日期:1998-12-01 00:00:00
abstract:BACKGROUND:Eosinophilic esophagitis (EoE) is a chronic inflammatory condition that can be complicated by esophageal strictures requiring endoscopic dilation. Whereas recent data have advanced the notion that dilation can be done effectively with minimal morbidity, issues concerning safety and tolerability remain. OBJE...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2010.09.034
更新日期:2011-01-01 00:00:00
abstract::Endoscopic hemostatic therapies have become increasingly popular and appear capable of controlling hemorrhage from peptic ulcers and reducing the need for surgery, but many physicians are unsure that the efficacy justifies the cost. In order to study this clinically and economically important issue, we developed a mat...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(87)71598-3
更新日期:1987-08-01 00:00:00
abstract:BACKGROUND:Access to the papilla of Vater or enteral anastomoses to the biliary tract or pancreatic duct is difficult in patients with altered anatomy. The usual approach to the papilla of Vater with a side-viewing duodenoscope, designed for passage through the stomach, pyloric channel, and proximal duodenum, is not su...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2007.06.017
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:EUS-guided biliary drainage (BD) is an evolving alternative technique for patients with malignant biliary obstruction for which ERCP failed. OBJECTIVE:To compare the outcomes of 2 nonanatomic EUS-guided BD routes: hepaticogastrostomy (HPG) and choledochoduodenostomy (CD). DESIGN:Prospective, randomized tri...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gie.2014.09.047
更新日期:2015-04-01 00:00:00
abstract::Obstruction of the main pancreatic duct with secondary upstream ductal hypertension is one cause of pain in patients with pancreatic cancer. Pancreatic endoscopic stenting and decompression of the pancreatic duct have been effective in the treatment of pain secondary to chronic calcifying pancreatitis and in one case ...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(93)70263-1
更新日期:1993-11-01 00:00:00
abstract:BACKGROUND:Capsule endoscopy allows the direct visualization of the entire small bowel. There is limited data on the clinical significance of permanent capsule retention. OBJECTIVE:Our purpose was to document the frequency, findings, risk factors, management, and outcomes of permanent capsule retention. DESIGN:Retros...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2006.02.036
更新日期:2006-08-01 00:00:00
abstract:BACKGROUND:Endoscopic ultrasound (EUS) was used to evaluate cirrhotic patients with and without prior variceal hemorrhage. The findings were compared with those of EUS in noncirrhotic control subjects to determine EUS features indicative of cirrhosis and of a risk for variceal hemorrhage. METHODS:Patients with cirrhos...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1067/mge.2000.107297
更新日期:2000-10-01 00:00:00
abstract:BACKGROUND AND AIMS:No well-established treatment strategies exist for lateral margin positivity (LM+) alone after endoscopic resection (ER) of early gastric cancer (EGC). Thus, we aimed to clarify a treatment strategy for non-curative resection (non-CR) with LM+ alone after ER in EGC. METHODS:Among 2065 patients with...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2017.02.037
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:Barrett's epithelium is a risk factor for esophageal cancer. In this study we attempted to reverse Barrett's epithelium in an acid-reduced environment by using multipolar electrocoagulation. METHODS:All patients had specialized columnar epithelium of at least 2 cm in length. Patients with dysplasia on succe...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(99)70380-9
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND AND AIMS:Submucosal injection is currently used in GI endoscopy to reduce resection risks and to perform submucosal dissection; it is usually performed via an injection needle or a needleless device. The aim of the study was to compare 2 submucosal injection modalities (needle-assisted vs needleless) by usin...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2017.01.029
更新日期:2017-09-01 00:00:00
abstract:BACKGROUND:A recent American Society for Gastrointestinal Endoscopy Technology Status Evaluation Report recommended comparative studies of water-aided colonoscopy methods to refine the optimal insertion technique. OBJECTIVE:Air insufflation (AI), water immersion (WI), and water exchange (WE) were compared head-to-head...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.gie.2014.07.029
更新日期:2015-03-01 00:00:00
abstract:BACKGROUND:Endoscopic retrograde intracorporeal lithotripsy with a stone recognition laser system seems to be a promising alternative in patients with difficult bile duct stones. METHOD:Sixteen patients with bile duct stones not suitable for endoscopic standard procedures underwent intracorporeal laser lithotripsy dur...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(95)70042-0
更新日期:1995-11-01 00:00:00
abstract:BACKGROUND:Recent studies highlight the role of duodenal bulb biopsy in the diagnosis of celiac disease. OBJECTIVE:To determine whether a targeted duodenal bulb biopsy in addition to distal duodenal biopsies is the optimal strategy to identify villous atrophy. DESIGN:Prospective cohort study. SETTING:Tertiary-care r...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2012.02.025
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Endoscopic mucosal resection is an established treatment option for early stage gastric cancer. However, several problems with endoscopic mucosal resection remain to be solved, such as appropriate treatment for recurrence and incomplete tumor resection. The outcome for patients undergoing endoscopic aspirati...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1067/mge.2002.129085
更新日期:2002-11-01 00:00:00
abstract:BACKGROUND:Radiation proctitis is a complication of radiotherapy for malignant pelvic disease. Argon beam coagulation is a new and rapidly evolving technology that permits a "no-touch" electrocoagulation of diseased tissue. METHODS:We analyzed retrospectively the records of 7 patients with prostatic and endometrial ca...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(99)70054-4
更新日期:1999-04-01 00:00:00
abstract:BACKGROUND:Monopolar hot biopsy forceps (HBF), bipolar HBF, and cold biopsy forceps (CBF) followed by bipolar electrocoagulation are used clinically to simultaneously perform a biopsy and coagulate diminutive colon polyps and angiomata. Our purpose was to conduct a randomized, controlled study to evaluate the safety of...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(95)70013-7
更新日期:1995-12-01 00:00:00
abstract::Endoscopic ultrasonography was pre-operatively performed in 164 patients with colorectal cancer, and the resected specimens confirmed to be cancerous histologically. Normal colorectal wall was visualized by endoscopic ultrasonography as a five-layered structure. The first, third, and fifth layers were hyperechoic, and...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(93)70163-7
更新日期:1993-07-01 00:00:00
abstract:BACKGROUND AND AIMS:Electronic virtual chromoendoscopy (EVC) can demonstrate ongoing disease activity in ulcerative colitis (UC), even when Mayo subscores suggest healing. However, applicability of EVC technology outside the expert setting has yet to be determined. METHODS:Fifteen participants across 5 centers reviewe...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,多中心研究
doi:10.1016/j.gie.2018.02.044
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND:Endoscopic therapies for early neoplasia in Barrett's esophagus may be a viable alternative to esophagectomy. OBJECTIVE:Our purpose was to compare endoscopic therapy and esophagectomy. DESIGN:Retrospective review from a single institution. SETTING:A medium-sized tertiary referral center. PATIENTS AND INT...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2007.08.042
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:Direct peroral cholangioscopy (POC) by using an ultra-slim endoscope provides direct visualization of the bile duct and allows for therapeutic intervention. Holmium laser lithotripsy can be effective for retained bile duct stones, but it requires direct visualization during the procedure for safe and effecti...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2011.07.027
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:The scientific potential of animal models of carcinogenesis has not been fully realized because of our limited ability to monitor tumor growth in vivo. OBJECTIVE:To develop an endoscopy-based protocol for the accurate estimation of adenoma size in vivo from images obtained during colonoscopy. DESIGN:To com...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2008.09.054
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND AND AIMS:Although various procedures have been used to prevent serious adverse events after endoscopic resection of the duodenum, their effectiveness has not been determined. In this study, we conducted a systematic review and meta-analysis to determine whether endoscopic preventive procedures reduce delayed...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章,评审
doi:10.1016/j.gie.2020.08.017
更新日期:2021-02-01 00:00:00
abstract::The use of endoscopic ultrasonography (EUS) in the diagnosis of submucosal upper gastrointestinal tract lesions was examined in 308 patients. Two-hundred ten submucosal tumors, 89 cases of esophagogastric varices, and 9 cases of non-Hodgkin's lymphoma were found. EUS images were interpreted based upon a five-layer EUS...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(90)71010-3
更新日期:1990-03-01 00:00:00
abstract:BACKGROUND:EUS-guided biliary drainage (EUS-BD) has emerged as an alternative rescue method in patients with failed ERCP. Opportunities for teaching and training are limited because of a low case volume at most centers. OBJECTIVE:To evaluate a stereolithography/3-dimensional (3D) printing bile duct prototype for teach...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/j.gie.2014.09.011
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:The most important aspect of the surgical management of Zenker's diverticulum is probably the cricopharyngeal myotomy. Endoscopic diverticulotomy can be performed with a needle-knife papillotome, which allows simultaneous myotomy of the upper esophageal sphincter. METHODS:Since 1978, 47 patients (28 men and...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(99)70452-9
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Mechanical lithotripsy has become a well-accepted method of bile duct stone fragmentation and removal. The Olympus lithotripter (Olympus American, Melville, NY) is the standard reusable lithotripter at the institutions that participated in this study. A disposable device with a preassembled pistol grip may p...
journal_title:Gastrointestinal endoscopy
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0016-5107(99)70488-8
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:Use of an echocolonoscope to examine patients with inflammatory bowel disease is technically difficult. Catheter probe assisted endoluminal ultrasonography (US) may be a feasible alternative. METHODS:Determination of demographic information and clinical disease activity was followed by colonoscopy with biop...
journal_title:Gastrointestinal endoscopy
pub_type: 杂志文章
doi:10.1016/s0016-5107(99)70342-1
更新日期:1999-07-01 00:00:00