Superb microvascular imaging for the detection of parenchymal perfusion in normal and undescended testes in young children

Lee, Yong Seung; Kim, Myung Joon; Han, Sang Won; Lee, Hye Sun; Im, Young Jae; Shin, Hyun Joo; Lee, Mi Jung

doi:10.1016/j.ejrad.2015.12.023

Cited by 52 publications

(60 citation statements)

References 16 publications

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“…Since initial reports in March 2016 [14], SMI has been mainly used in oncologic conditions (especially breast lesions) [22–26], infectious diseases [16, 27, 28], gastrointestinal disorders [29–32], obstetric ultrasound [33, 34], musculoskeletal [35], vascular [36], and endocrine disorders [14]. In paediatric imaging, SMI has been used to detect direction of urinary flow in patients with vesico-urethral reflux without the use of contrast [16] and to demonstrate differences in vascular flow grades between normal and undescended testes, which were invisible by Power Doppler [17, 18]. Our paper is not the first reporting the use of SMI in cerebral imaging, but it is the first with a dedicated neuropediatric imaging approach.…”

Section: Discussionmentioning

confidence: 99%

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Microvessel ultrasound of neonatal brain parenchyma: feasibility, reproducibility, and normal imaging features by superb microvascular imaging (SMI)

et al. 2018

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ObjectivesTo evaluate the feasibility and reproducibility of superb microvascular imaging (SMI) of the neonatal brain and to describe normal imaging features.MethodsWe performed transcranial ultrasound with SMI in 19 healthy term-born neonates. SMI was done according to a structured examination protocol, using two linear 18 MHz and 14 MHz transducers. Superficial and deep scans were acquired in the coronal and sagittal planes, using the left and right superior frontal gyri as anatomical landmarks. All SMI views were imaged by monochrome and colour SMI and evaluated with respect to visibility of extrastriatal (i.e. cortical and medullary) and striatal microvessels.ResultsWe have described normal morphologic features of intraparenchymal brain microvasculature as “short parallel” cortical vessels, “smoothly curved” medullary vessels, and deep striatal vessels. In general, SMI performance was better on coronal views than on sagittal views. On superficial coronal scans, cortical microvessels were identifiable in 90–100%, medullary microvessels in 95–100%. On deep scans, cortical and medullary microvessels were visible in all cases, while striatal microvessels were identifiable in 71% of cases.ConclusionsCerebral SMI ultrasound is feasible and well-reproducible and provides a novel non-invasive imaging tool for the assessment of intraparenchymal brain microvasculature (extrastriatal and striatal microvessels) in neonates without the use of contrast.Key Points• Superb microvascular imaging (SMI) of the neonatal brain is feasible and reproducible. • SMI depicts extrastriatal and striatal microvessels. • SMI detects two types of extrastriatal microvessels: cortical and medullary.Electronic supplementary materialThe online version of this article (10.1007/s00330-018-5743-1) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

“…Regarding paediatric applications, SMI has been shown helpful in the assessment of vesico-urethral reflux [16] as well as in undescended testes [17, 18]. …”

Section: Introductionmentioning

confidence: 99%

Microvessel ultrasound of neonatal brain parenchyma: feasibility, reproducibility, and normal imaging features by superb microvascular imaging (SMI)

et al. 2018

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“…Conventional Doppler sonographic techniques use a wall filter to remove clutter, causing loss of subtle low‐flow components. However, SMI can differentiate flow signals from underlying clutter by using an adaptive algorithm …”

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confidence: 99%

“…However, SMI can differentiate flow signals from underlying clutter by using an adaptive algorithm. 8 Strain elastography is another imaging technique based on sonography, providing information on the mechanical traits of tissues and reflecting their condition. Strain elastography is based on the principle that tissue compression produces strain within the tissue, and the strain is less in hard tissues than in soft ones.…”

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confidence: 99%

Diagnostic Performance of Superb Microvascular Imaging and Other Sonographic Modalities in the Assessment of Lateral Epicondylosis

Arslan

Karahan

Öncü

et al. 2017

J of Ultrasound Medicine

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“…2C, D). Knowledge of these changes is important because testicular flow is frequently not detectable even in a normal testis in neonates [35]. In this setting, elastography also may be useful to visualize the hardening of a necrotic testicle [27].…”

Section: Testicular Torsionmentioning

confidence: 99%

Ultrasonography of pediatric urogenital emergencies: review of classic and new techniques

Kitami

2017

Ultrasonography

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Urogenital emergencies are fairly common in the pediatric population, and a timely and correct diagnosis is necessary to avoid possible future infertility. In this field, ultrasonography is essential, as it has the advantages of being radiation-free and readily accessible. In particular, a high-frequency transducer allows precise evaluation of the morphology and vascularity of the scrotum, which is on the surface of the body. Beyond conventional techniques, new advanced imaging techniques have been developed, including elastography and contrast-enhanced ultrasonography. However, several pitfalls remain in the diagnosis of urogenital diseases using ultrasonography. Thus, accurate knowledge and sufficient experience with the technique are essential for making a correct diagnosis. This review provides an overview of pediatric urogenital emergency pathologies and recent ultrasonography techniques.

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Superb microvascular imaging for the detection of parenchymal perfusion in normal and undescended testes in young children

Cited by 52 publications

References 16 publications

Microvessel ultrasound of neonatal brain parenchyma: feasibility, reproducibility, and normal imaging features by superb microvascular imaging (SMI)

Microvessel ultrasound of neonatal brain parenchyma: feasibility, reproducibility, and normal imaging features by superb microvascular imaging (SMI)

Diagnostic Performance of Superb Microvascular Imaging and Other Sonographic Modalities in the Assessment of Lateral Epicondylosis

Ultrasonography of pediatric urogenital emergencies: review of classic and new techniques

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