Technique of qualitative and semiquantitative EUS elastography in pancreatic examination

Costache, Mădălin Ionuţ; Dumitrescu, Daniela; Săftoiu, Adrian

doi:10.4103/eus.eus_75_17

Cited by 16 publications

(24 citation statements)

References 23 publications

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“…The ability to differentiate between softer and harder tissues may help in refining the differential diagnosis of pancreatic lesions and lymph nodes (LNs). [ 4 ]…”

Section: Introduction and Review Of The Literaturementioning

confidence: 99%

Do we need elastography for EUS?

Dietrich¹,

Burmeister

Hollerbach

et al. 2020

Endosc Ultrasound

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We recently introduced a series of papers “What should be known prior to performing EUS exams.” In Part I, the authors discussed which clinical information and whether other imaging modalities are needed before embarking EUS examinations. In Part II, technical controversies on how EUS is performed were discussed from different points of view. In this article, important practical issues regarding EUS elastography will be raised and controversially discussed from very different points of view.

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“…The ability to differentiate between softer and harder tissues may help in refining the differential diagnosis of pancreatic lesions and lymph nodes (LNs). [ 4 ]…”

Section: Introduction and Review Of The Literaturementioning

confidence: 99%

Do we need elastography for EUS?

Dietrich¹,

Burmeister

Hollerbach

et al. 2020

Endosc Ultrasound

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“…Elastography is an emerging set of imaging modalities used to reproduce tissue elasticity. Described for the first time in 2005, EUS elastography is a very important technique for the assessment of the pancreatic stiffness, [19] being a useful tool for the differential diagnosis of pancreatic masses. [20] Currently, there are two types of EUS elastography: qualitative and semi-quantitative.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, the technique can be used as a complementary EUS method for the differential diagnosis between malignant and benign pancreatic masses. [19] Furthermore, both semi-quantitative EUS elastography and contrast-enhanced EUS might be used for the follow-up of patients with malignant focal pancreatic masses during neoadjuvant chemoradiotherapy and/or antiangiogenic treatments.…”

Section: Discussionmentioning

confidence: 99%

Clinical impact of strain histogram EUS elastography and contrast-enhanced EUS for the differential diagnosis of focal pancreatic masses: A prospective multicentric study

et al. 2020

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Background: Recent advances in EUS techniques (real-time EUS elastography and contrast-enhanced EUS) have allowed a better characterization of focal pancreatic masses. Mean strain histograms (SHs) are considered a good parameter for the semi-quantitative evaluation of focal pancreatic masses, alongside complementary contrast-enhanced EUS parameters which can be quantified during both the early arterial and late venous phase. Materials and Methods: The study design was prospective, blinded, and multicentric, assessing real-time EUS elastography and contrast-enhanced EUS results for the characterization of focal pancreatic masses using parametric measurements, in comparison with pathology which is the gold standard. SHs were performed based on the embedded software of the ultrasound system, with the values being reversed as opposed to our initially published data on hue histograms. Consequently, a cutoff of 80 was derived from previous multicentric trials. Contrast-enhanced EUS also allowed the focal masses to be classified as hyper-, iso-, or hypoenhanced in comparison with the normal pancreatic parenchyma. EUS-FNA was then performed for all patients, with a positive cytological diagnosis taken as a final proof of malignancy for the pancreatic masses. The diagnoses obtained by EUS-FNA were verified further either by surgery or during a clinical follow-up of at least 6 months. Results: A total number of 97 consecutive patients with focal pancreatic masses were included in the study. Based on previously defined cutoffs of 80, the values of sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of the mean SHs for the diagnosis of pancreatic cancer were 100%, 29.63%, 78.65%, 100%, and 80.41%, respectively. Corresponding values for contrast-enhanced EUS (taking into consideration hypoenhencement as a

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“…EUS elastography and contrast-enhanced EUS can provide more information. [27][28][29][30][31] In addition, endoscopic ultrasound guided fine needle aspiration (EUS-FNA) can help in diagnosis. [32][33][34] Although glomus tumor is a vascular lesion, it is safe to perform EUS-FNA.…”

Section: Disscussionmentioning

confidence: 99%

The role of endoscopic ultrasound and endoscopic resection for gastric glomus: A case series and literature review

Guo

Wang

et al. 2019

Journal of Translational Internal Medicine

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Background and Objectives Preoperative diagnosis of gastric glomus tumor is very difficult, and there are few reports regarding the endoscopic treatment of glomus tumor of the stomach. Our aim is to provide a retrospective assessment of the imaging features of endoscopic ultrasound (EUS) and treatment of choice of gastric glomus tumor. Methods A database of all patients with gastric glomus tumor who was treated at Shengjing Hospital of China Medical University between March 2011 and March 2017 was retrospectively analyzed. The EUS characteristics and patients’ clinical data as well as their treatment were reviewed. At the same time, we compared EUS characteristics of gastric glomus tumor with that of gastrointestinal stromal tumor (GISTs), leiomyomas, schwannomas, and ectopic pancreas. Results Eleven patients (3 male and 8 female patients) were included in the present study. The patients’ age ranged from 37 to 62 years (mean age, 50.1 years). Ten patients received EUS examination. Eight lesions were presented with mild-hyperechoic round or oval mass; one lesion was mild-hyperechoic oval mass with hypoechoic spots; one lesion was hypoechoic oval mass. One patient received endoscopic full-thickness resection; 3 patients were treated by endoscopic submucosal dissection; and laparoscopic resection was performed for 7 patients. Conclusions Gastric glomus has typical EUS features to differentiate from other submucosal tumors. Compared with surgery, endoscopic resection is also a safe and effective treatment of choice for gastric glomus tumor.

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Technique of qualitative and semiquantitative EUS elastography in pancreatic examination

Cited by 16 publications

References 23 publications

Do we need elastography for EUS?

Do we need elastography for EUS?

Clinical impact of strain histogram EUS elastography and contrast-enhanced EUS for the differential diagnosis of focal pancreatic masses: A prospective multicentric study

The role of endoscopic ultrasound and endoscopic resection for gastric glomus: A case series and literature review

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