Shear-Wave Elastography of Segmental Infarction of the Testis

Kantarcı, Fatih; Olgun, Deniz Çebi; Mihmanlı, İsmail

doi:10.3348/kjr.2012.13.6.820

Cited by 36 publications

(32 citation statements)

References 11 publications

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“…US elastography needs to be evaluated more in testicular focal lesions, so as to assess its benefits. In our experience and in some cases reported, US elastography may reveal a high degree of stiffness of Leydig cell tumors, 29 germ cell tumors, 30 testicular infarct, 31 adrenal rests, 32 and other diseases. B-mode US, color Doppler US, SWE, and CEUS must be combined to help the characterization.…”

Section: Discussionsupporting

confidence: 55%

Burned-Out Testis Tumors in Asymptomatic Infertile Men: Multiparametric Sonography and MRI Findings

et al. 2016

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Multiparametric testicular ultrasound and magnetic resonance imaging (MRI) findings were analyzed in a series of 10 infertile asymptomatic men presenting with pathologically confirmed burned-out testicular tumors. Color/power Doppler ultrasound (CDUS), shear wave elastography (SWE), contrast-enhanced ultrasonography (CEUS), and MRI were performed on 10, 5, 6, and 7 patients, respectively. All lesions appeared as a hypoechoic and hypovascular nodular area at CDUS, SWE, CEUS CDUS, and CEUS (if performed). Shear wave elastography showed a stiffer nodular area compared with the surrounding/contralateral tissues (13 versus 2 kPa); MRI revealed a well-delineated nodular area in hypointense signal on T2, a high apparent diffusion coefficient value, and a lack of enhancement.

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Section: Discussionsupporting

confidence: 55%

Burned-Out Testis Tumors in Asymptomatic Infertile Men: Multiparametric Sonography and MRI Findings

et al. 2016

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“…45 With respect to testicular lesions, RTE has been studied in approximately 200 patients to date. 44,[49][50][51][52][53] Notably, this technology differentiates benign from malignant intratesticular lesions Blue colour denotes flow away from the probe. Note that colour coding is present within the tumour.…”

Section: Ultrasonography Of the Scrotummentioning

confidence: 99%

Contemporary diagnostic work-up of testicular germ cell tumours

Dieckmann

Frey

Lock³

2013

Nat Rev Urol

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Diagnostic work-up of testicular masses should begin with a complete patient history and palpation of the testes with both hands. First-line imaging of the scrotum should be performed using multiparametric ultrasonography, that is the sequential use of grey-scale ultrasonography, colour Doppler ultrasonography (CDUS), and, if available, contrast-enhanced ultrasonography (CEUS) and real-time elastography (RTE). Increased vascularization--a characteristic of malignancy and inflammation--is visualized on CDUS and CEUS. RTE provides additional information for distinguishing between benign and malignant tissue by measuring tissue elasticity of lesions. MRI is another powerful modality, typically used for second-line imaging of intrascrotal disorders. MRI can provide images with a broad field of view of the scrotal contents. Cancerous lesions are identified on MRI by their signal enhancement after injection of contrast agent. Testicular germ cell tumours require treatment by inguinal orchiectomy. Testis-sparing surgery is advocated for benign tumours and in solitary testicles provided the tumour is <3 cm and the preoperative serum testosterone level is normal. For intraoperative decision-making with regard to testis-sparing surgery, frozen section histological examination can be used, which has a false-negative rate of <10%.

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“…Recently, stiffness imaging techniques that measure the shear wave velocity in liver tissues, such as magnetic resonance elastography, US-based elastography techniques, such as acoustic radiation force impulse (ARFI) elastography and shear wave elastography, have been introduced and are currently being used in the liver (11), as well as in the other organs (12-15). The ARFI elastography technique provides information about the stiffness of target tissues by using high-intensity, short-duration acoustic pulses (push pulses) to propagate shear waves through the targeted tissues.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Radiation Force Impulse Elastography for Focal Hepatic Tumors: Usefulness for Differentiating Hemangiomas from Malignant Tumors

et al. 2013

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ObjectiveThe purpose of this study is to investigate whether acoustic radiation force impulse (ARFI) elastography with ARFI quantification and ARFI 2-dimensional (2D) imaging is useful for differentiating hepatic hemangiomas from malignant hepatic tumors.Materials and MethodsOne-hundred-and-one tumors in 74 patients were included in this study: 28 hemangiomas, 26 hepatocellular carcinomas (HCCs), three cholangiocarcinomas (CCCs), 20 colon cancer metastases and 24 other metastases. B-mode ultrasound, ARFI 2D imaging, and ARFI quantification were performed in all tumors. Shear wave velocities (SWVs) of the tumors and the adjacent liver and their SWV differences were compared among the tumor groups. The ARFI 2D images were compared with B-mode images regarding the stiffness, conspicuity and size of the tumors.ResultsThe mean SWV of the hemangiomas was significantly lower than the malignant hepatic tumor groups: hemangiomas, 1.80 ± 0.57 m/sec; HCCs, 2.66 ± 0.94 m/sec; CCCs, 3.27 ± 0.64 m/sec; colon cancer metastases, 3.70 ± 0.61 m/sec; and other metastases, 2.82 ± 0.96 m/sec (p < 0.05). The area under the receiver operating characteristics curve of SWV for differentiating hemangiomas from malignant tumors was 0.86, with a sensitivity of 96.4% and a specificity of 65.8% at a cut-off value of 2.73 m/sec (p < 0.05). In the ARFI 2D images, the malignant tumors except HCCs were stiffer and more conspicuous as compared with the hemangiomas (p < 0.05).ConclusionARFI elastography with ARFI quantification and ARFI 2D imaging may be useful for differentiating hepatic hemangiomas from malignant hepatic tumors.

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Shear-Wave Elastography of Segmental Infarction of the Testis

Cited by 36 publications

References 11 publications

Burned-Out Testis Tumors in Asymptomatic Infertile Men: Multiparametric Sonography and MRI Findings

Burned-Out Testis Tumors in Asymptomatic Infertile Men: Multiparametric Sonography and MRI Findings

Contemporary diagnostic work-up of testicular germ cell tumours

Acoustic Radiation Force Impulse Elastography for Focal Hepatic Tumors: Usefulness for Differentiating Hemangiomas from Malignant Tumors

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