A fast tissue stiffness-dependent elastography for HIFU-induced lesions inspection

Zhang, Dachun; Zhang, Siyuan; Wan, Mingxi; Wang, Supin

doi:10.1016/j.ultras.2011.03.011

Cited by 19 publications

(12 citation statements)

References 43 publications

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“…Based on above simplification, the ultrasound echo for nondestructive testing can be expressed with the following equation [3] ) , , (…”

Section: Theorymentioning

confidence: 99%

“…To simplify the problem, and also consider the time efficiency, a linear elastic ultrasound scattering model [3] is introduced in this paper. The model can be described as follow.…”

Section: A． Ultrasound Scattering Funtionmentioning

confidence: 99%

“…The axial component is simulated as a Gaussian modulated cosine function, which is formulated as [3,6] ) cos( 2…”

Section: B．ultrasound Point Spread Functionmentioning

confidence: 99%

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Virtual Simulation on Ultrasound Non-destructive Testing of Solid Rocket Motor

Zhang¹,

Luo²,

Zhang³

2013

Proceedings of the International Conference on Computer, Networks and Communication Engineering (ICCNCE 2013)

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Conventionally, ultrasound-based non-destructive testing (UNDT) is employed to examine the solid rocket motor (SRM) during its surveillance and maintenance. To avoid training with real equipment, virtual UNDT training system has been developed. To enhancement training effect with high immersion, a novel scheme to generate ultrasound signal according to the preset detected material is proposed to visually demonstrate the process of UNDT approximately. In this scheme, the virtual ultrasound signal is obtained based on the linear scattering model and a material defect model. To corroborate the proposed method, signals from three kinds of typical regions were respectively simulated. It shows that the proposed scheme is able to distinguish the defect status of the regions as real UNDT both in quality and in quantity.Index Terms -Virtual ultrasound non-destructive testing (vUNDT); Virtual Reality (VR); Solid rocket motor (SRM)

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“…Based on above simplification, the ultrasound echo for nondestructive testing can be expressed with the following equation [3] ) , , (…”

Section: Theorymentioning

confidence: 99%

“…To simplify the problem, and also consider the time efficiency, a linear elastic ultrasound scattering model [3] is introduced in this paper. The model can be described as follow.…”

Section: A． Ultrasound Scattering Funtionmentioning

confidence: 99%

See 1 more Smart Citation

Virtual Simulation on Ultrasound Non-destructive Testing of Solid Rocket Motor

Zhang¹,

Luo²,

Zhang³

2013

Proceedings of the International Conference on Computer, Networks and Communication Engineering (ICCNCE 2013)

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“…B. der Mamma, Leber und Prostata erprobt. Diese Technik kann wertvolle Zusatzinformationenliefern, die z. T. mit der konventionellen BBild-Sonographie nicht zu gewinnen sind [33,34,35,36,37]. In ersten Studien am Tiermodell wurde die Elastographie zur Erfolgsbeurteilung der Ethanolinjektion bei Lebertumoren mit Erfolg eingesetzt [38,39].…”

Section: Elastographieunclassified

Präklinische Bildgebung im Tiermodell bei Strahlentherapie

et al. 2012

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“…This technique may have valuable additional information, which are unable to detect by conventional B-mode sonography [4,13,16,22,27]. In initial animal experimental studies the elastography has been used with success to assess the success of the ethanol injection of liver tumors [6,12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of multimodality imaging using image fusion with ultrasound tissue elasticity imaging in an experimental animal model

Paprottka

Zengel²,

Cyran

et al. 2014

Clinical Hemorheology and Microcirculation

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PURPOSE: To evaluate the ultrasound tissue elasticity imaging by comparison to multimodality imaging using image fusion with Magnetic Resonance Imaging (MRI) and conventional grey scale imaging with additional elasticity-ultrasound in an experimental small-animal-squamous-cell carcinoma-model for the assessment of tissue morphology. METHOD AND MATERIALS: Human hypopharynx carcinoma cells were subcutaneously injected into the left flank of 12 female athymic nude rats. After 10 days (SD ± 2) of subcutaneous tumor growth, sonographic grey scale including elasticity imaging and MRI measurements were performed using a high-end ultrasound system and a 3T MR. For image fusion the contrast-enhanced MRI DICOM data set was uploaded in the ultrasonic device which has a magnetic field generator, a linear array transducer (6-15 MHz) and a dedicated software package (GE Logic E9), that can detect transducers by means of a positioning system. Conventional grey scale and elasticity imaging were integrated in the image fusion examination. After successful registration and image fusion the registered MR-images were simultaneously shown with the respective ultrasound sectional plane. Data evaluation was performed using the digitally stored video sequence data sets by two experienced radiologist using a modified Tsukuba Elasticity score. The colors "red and green" are assigned for an area of soft tissue, "blue" indicates hard tissue. RESULTS: In all cases a successful image fusion and plan registration with MRI and ultrasound imaging including grey scale and elasticity imaging was possible. The mean tumor volume based on caliper measurements in 3 dimensions was ∼323 mm 3 . 4/12 rats were evaluated with Score I, 5/12 rates were evaluated with Score II, 3/12 rates were evaluated with Score III. There was a close correlation in the fused MRI with existing small necrosis in the tumor. None of the scored II or III lesions was visible by conventional grey scale. CONCLUSION: The comparison of ultrasound tissue elasticity imaging enables a secure differentiation between different tumor tissue areas in comparison to image fusion with MRI in our small study group. Therefore ultrasound tissue elasticity imaging might be used for fast detection of tumor response in the future whereas conventional grey scale imaging alone could not provide the additional information.By using standard, contrast-enhanced MRI images for reliable and reproducible slice positioning, the strongly user-dependent limitation of ultrasound tissue elasticity imaging may be overcome, especially for a comparison between baseline and follow-up measurements.

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A fast tissue stiffness-dependent elastography for HIFU-induced lesions inspection

Cited by 19 publications

References 43 publications

Virtual Simulation on Ultrasound Non-destructive Testing of Solid Rocket Motor

Virtual Simulation on Ultrasound Non-destructive Testing of Solid Rocket Motor

Präklinische Bildgebung im Tiermodell bei Strahlentherapie

Evaluation of multimodality imaging using image fusion with ultrasound tissue elasticity imaging in an experimental animal model

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