Diagnostic accuracy of point shear wave elastography in the detection of portal hypertension in pediatric patients

Özkan, Mehmet Burak; Bilgici, Meltem Ceyhan; Eren, Esra; Çaltepe, Gönül

doi:10.1016/j.diii.2017.10.009

Cited by 15 publications

(30 citation statements)

References 24 publications

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“…From these models, ADC value was 1.2 x 10 -3 mm 2 /s, D* value was 19.6 x 10 -3 mm 2 /s, f value was 0.2, D was 0.9 x 10 -3 mm 2 /s, distributed diffusion coefficient was 1.1 x 10 -3 mm 2 /s, and α value was 0. kjronline.org hypertension in children (Fig. 4) (67). The cutoff value of splenic point SWE for portal hypertension was 3.14 m/s, with a specificity of 98.6% and a sensitivity of 68.2%, even though the diagnostic performance was lower than that for the liver.…”

Section: Fig 3 2-month-old Girl With Biliary Atresiamentioning

confidence: 89%

“…As an alternative, additional spleen SWE measurements could be helpful in differentiating portal hypertension in children (Fig. 4) (67). The cutoff value of splenic point SWE for portal hypertension was 3.14 m/s, with a specificity of 98.6% and a sensitivity of 68.2%, even though the diagnostic performance was lower than that for the liver.…”

Section: Clinical Applications Of Quantitative Hepatobiliary Imagingmentioning

confidence: 99%

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Quantitative Imaging in Pediatric Hepatobiliary Disease

et al. 2019

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Pediatric hepatobiliary imaging is important for evaluation of not only congenital or structural disease but also metabolic or diffuse parenchymal disease and tumors. A variety of ultrasonography and magnetic resonance imaging (MRI) techniques can be used for these assessments. In ultrasonography, conventional ultrasound imaging as well as vascular imaging, elastography, and contrast-enhanced ultrasonography can be used, while in MRI, fat quantification, T2/T2 * mapping, diffusion-weighted imaging, magnetic resonance elastography, and dynamic contrast-enhanced MRI can be performed. These techniques may be helpful for evaluation of biliary atresia, hepatic fibrosis, nonalcoholic fatty liver disease, sinusoidal obstruction syndrome, and hepatic masses in children. In this review, we discuss each tool in the context of management of hepatobiliary disease in children, and cover various imaging techniques in the context of the relevant physics and their clinical applications for patient care.

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Section: Fig 3 2-month-old Girl With Biliary Atresiamentioning

confidence: 89%

Section: Clinical Applications Of Quantitative Hepatobiliary Imagingmentioning

confidence: 99%

Quantitative Imaging in Pediatric Hepatobiliary Disease

et al. 2019

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Section: Methodsmentioning

confidence: 99%

“…Normal testicular tissue of the undescended patients was not included in the study because of the principle that histopathologic sections might have been affected in various stages of embryological development. 4,11 Pathologic changes in undescended testes occur with age. Microscopic changes in testicle parenchyma begin in undescended testes at six to nine months of age.…”

Section: Patient Selectionmentioning

confidence: 99%

Diagnostic Accuracy of Virtual Touch Quantification and Virtual Touch Imaging Quantification Sonoelastography Techniques in Pediatric Undescended Testes Patients

Özkan

Bilgic

Bıçakçı

et al. 2018

Journal of Diagnostic Medical Sonography

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Sonoelastography-based imaging techniques have received substantial attention in recent years for noninvasive assessment of tissue mechanical properties. These techniques take advantage of changed soft tissue elasticity in various pathologies to yield qualitative and quantitative information that can be used for diagnostic purposes. Measurements are acquired in specialized imaging modes that can detect tissue stiffness in response to an applied mechanical force (compression or shear wave). As a 2D shear-wave speed (SWS) measurement in which the SWS value is also expressed in meters/second. Virtual touch quantification (VTQ) and virtual touch imaging quantification (VTIQ) techniques can display color-coded images and measure localized SWS from 0.5 to 10 meters/second, using up to 256 spatial distributions of acoustic radiation force impulse (ARFI) push and pulse beams. 1,2 Sonoelastography has been used extensively in pediatric imaging, especially in the assessment of pediatric liver diseases. 3,4 There are only a few research studies in the literature regarding the usage of sonoelastography on testicular tissue, 3-10 none of which compare the techniques of VTQ and VTIQ on undescended testicular tissue. Both techniques can be performed with a 9L4 linear probe, which can provide additional information about testicular stiffness. The preferred imaging method to evaluate the undescended testes is sonography. But within sonoelastography imaging, it is easy to distinguish between the undescended tests and lymph nodes. However, the use of VTQ and VTIQ techniques could calculate more appropriate tissue stiffness results in selected areas.

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“…Nine of the 11 included studies [10][11][12][13][14][15][16][17]19 compared the stiffness scores of the portal hypertension group with those of a control group, and we obtained the raw data for these measurements from the authors of the other 2 studies 18,20 and then evaluated the differences between the groups (Table 3). Among the 11 selected studies that evaluated liver stiffness, the representative value of the portal hypertension group ranged from 14.1 to 37.72 kPa in the 7 TE studies and 1.62 to 2.89 m/s in the 3 point SWE studies and was measured at 21.1 kPa in the real-time SWE study.…”

Section: Comparison Between the Portal Hypertension And Control Groupsmentioning

confidence: 99%

Diagnostic Performance of Ultrasound Elastography for Evaluating Portal Hypertension in Children: A Systematic Review and Meta‐analysis

Kim¹,

Yoon

Jung

et al. 2018

J of Ultrasound Medicine

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Diagnostic accuracy of point shear wave elastography in the detection of portal hypertension in pediatric patients

Cited by 15 publications

References 24 publications

Quantitative Imaging in Pediatric Hepatobiliary Disease

Quantitative Imaging in Pediatric Hepatobiliary Disease

Diagnostic Accuracy of Virtual Touch Quantification and Virtual Touch Imaging Quantification Sonoelastography Techniques in Pediatric Undescended Testes Patients

Diagnostic Performance of Ultrasound Elastography for Evaluating Portal Hypertension in Children: A Systematic Review and Meta‐analysis

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