Real time endoscopic ultrasound elastography and strain ratio in the diagnosis of solid pancreatic lesions

Objective: To investigate the effect of endoscopic ultrasound real-time tissue elastography in differential diagnosis of benign and malignant digestive system tumors. Methods: Forty-two patients with solid tumors of digestive system who were admitted to our hospital between October 2017 and October 2018 were selected. All patients were diagnosed by endoscopic ultrasound real-time tissue elastography. Elastography score was used. The strain ratios (SR) of the lesion and the surrounding control tissues were measured and compared. Results: Lesions with elastography score no more than two points were evaluated as benign, while lesions with elastography score no less than three points were evaluated as malignant. The difference of the elastography score between the benign lesion group and malignant lesion group was statistically significant (P<0.05). The sensitivity, specificity and accuracy of endoscopic ultrasound elastography in the diagnosis of malignant tumors of digestive system were 91.4%, 88.9% and 87.5%, respectively. The SR of the benign lesions ranged from 0.01 to 7.34, with a median SR of 7.33; the SR of the malignant lesions ranged from 1.01 to 47.66, with a median SR of 20.07. The SR of the benign lesions was significantly lower than that of the malignant lesions (P<0.05). Conclusion: Elastography of benign and malignant tissues of digestive tract tumors has different image characteristics. Endoscopic ultrasound real-time tissue elastography is effective in differential diagnosis of digestive tract tumors as it can effectively determine whether a tumor is benign or malignant and improve diagnostic accuracy. doi: https://doi.org/10.12669/pjms.35.5.1075 How to cite this:Lv H, Zhu G, Zhou L. Diagnostic value of endoscopic ultrasound elastography for benign and malignant digestive system tumors. Pak J Med Sci. 2019;35(5):---------. doi: https://doi.org/10.12669/pjms.35.5.1075 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Usefulness of Endoscopic Ultrasound Elastography Combined With the Strain Ratio in the Estimation of Treatment Effect in Autoimmune Pancreatitis

Pancreas ◽

10.1097/mpa.0000000000001481 ◽

2020 ◽

Vol 49 (2) ◽

pp. e21-e22

Author(s):

Takuya Ishikawa ◽

Hiroki Kawashima ◽

Eizaburo Ohno ◽

Hiroyuki Tanaka ◽

Keiko Maeda ◽

...

Keyword(s):

Endoscopic Ultrasound ◽

Treatment Effect ◽

Autoimmune Pancreatitis ◽

Strain Ratio ◽

Ultrasound Elastography

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Assessment of Carotid Arterial Wall Elasticity in Type 2 Diabetes Mellitus Patients with Microalbuminuria by Real-Time Ultrasound Elastography

International Journal of Endocrinology ◽

10.1155/2012/340974 ◽

2012 ◽

Vol 2012 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Yu-Hong Zhang ◽

Yuan Gao ◽

Ben-Li Su

Keyword(s):

Diabetes Mellitus ◽

Type 2 Diabetes ◽

Type 2 Diabetes Mellitus ◽

Real Time ◽

Arterial Wall ◽

Strain Ratio ◽

Ultrasound Elastography ◽

The Mean ◽

Carotid Arterial

The aim of this study was to evaluate carotid arterial wall elasticity in type 2 diabetes mellitus (T2DM) with microalbuminuria by real-time ultrasound elastography. Two hundred and ten T2DM patients were divided into two groups according to levels of urinary albumin excretion (UAE): T2DM without microalbuminuria (T2DM1 group, 120) and T2DM with microalbuminuria (T2DM2 group, 90). The right common carotid arteries were examined by real-time ultrasound elastography. The strain ratio (SR, blood to arterial wall strain ratio) was calculated by dividing the strain value of the blood by that of the carotid arterial wall. The correlation between SR and general data was analyzed. The mean SR value ± SD of T2DM2 group was significantly higher than that of T2DM1 group (P<0.05). SR was positively and significantly correlated with UAE, HbA1c, and systolic blood pressure (r=0.456,0.435,0.235,P<0.05for all). The mean value ± SD of UAE, HbA1c, 2hPG, BMI, and TC of T2DM2 group was significantly higher than that of T2DM1 group (P<0.05for all). In conclusion, there is an association between microalbuminuria and carotid arterial wall elasticity in T2DM patients.

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