Pediatric applications of abdominal vascular Doppler imaging: Part I

Coley, Brian D.

doi:10.1007/s00247-004-1228-2

Cited by 10 publications

(11 citation statements)

References 79 publications

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“…The mean portal venous flow velocity in a fasting adult is approximately 18 cm/sec (range, 13-23 cm/sec) (19). The volume and velocity of portal venous flow normally increase after meals (25,26), reflecting the increased flow in the superior mesenteric artery (25). The splenic vein and the superior mesenteric vein show Doppler flow patterns similar to that of the portal vein (27).…”

Section: Ovarian Vesselsmentioning

confidence: 99%

Normal Doppler Spectral Waveforms of Major Pediatric Vessels: Specific Patterns

Chavhan¹,

Parra²,

Mann³

et al. 2008

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Every major vessel in the human body has a characteristic flow pattern that is visible in spectral waveforms obtained in that vessel with Doppler ultrasonography (US). Spectral waveforms reflect the physiologic status of the organ supplied by the vessel, as well as the anatomic location of the vessel in relation to the heart. In addition, the waveforms may be affected by age- and development-related hemodynamic differences. For example, adults tend to have higher flow velocities, whereas neonates, particularly those born prematurely, have higher resistance to flow, especially in the cerebral and renal vascular beds. As Doppler US is performed with increasing frequency for vascular evaluation in children, the recognition of normal flow patterns has become imperative. Familiarity with the waveforms characteristic of specific veins and arteries in children is important. In addition, an understanding of the hemodynamic factors involved provides a useful basis for interpreting waveform abnormalities.

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Section: Ovarian Vesselsmentioning

confidence: 99%

Normal Doppler Spectral Waveforms of Major Pediatric Vessels: Specific Patterns

Chavhan¹,

Parra²,

Mann³

et al. 2008

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“…Relative to other modalities, exams can be performed without sedation and are efficient, inexpensive, portable, and uniquely tailored to the clinical question at hand. 1,2 Grayscale imaging and Doppler interrogation of the vasculature provide both anatomical and real-time physiologic information.…”

Section: Noninvasive Imaging Modalities Ultrasoundmentioning

confidence: 99%

Pediatric Mesenteric Vasculature: Noninvasive Imaging and Catheter Arteriography

Braswell

2019

Dig Dis Interv

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The imaging of the mesenteric vasculature of infants and children can be effectively accomplished using a variety of noninvasive and invasive techniques. As with adult imaging, the choice of modality will depend on the specific clinical scenario. Unique considerations and challenges are related to pediatric body size, pathology, the patient's developmental ability to tolerate the exam, and practical radiation concerns. Pediatric angiography can provide both diagnostic information and a pathway to definitive treatment of vascular abnormalities. Utilizing the right modality in the appropriate situation allows for accurate and timely diagnosis so that treatment is most effective.

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“…Color Doppler US also helps differentiate vessels from dilated bile ducts. The portal vein in newborns has a diameter of 3-5 mm, with hepatopetal flow that is minimally phasic (7). The hepatic artery shows continuous anterograde flow through diastole with a normal resistive index of 0.6-0.7 in children; normal resistive index ranges have not been separately established for neonates (7).…”

Section: Online Sa-cmementioning

confidence: 99%

“…The portal vein in newborns has a diameter of 3-5 mm, with hepatopetal flow that is minimally phasic (7). The hepatic artery shows continuous anterograde flow through diastole with a normal resistive index of 0.6-0.7 in children; normal resistive index ranges have not been separately established for neonates (7). Hepatic vein waveforms in neonates are often monophasic rather than triphasic (7).…”

Section: Online Sa-cmementioning

confidence: 99%

“…There are numerous causes of portal venous air; however, in the neonatal period the most important etiologies to consider are necrotizing enterocolitis and UVC placement. In necrotizing may be patent up to 3 weeks in term neonates and up to 1 month or more in premature neonates (7,83,84). While US of intrahepatic PSS is usually diagnostic, contrast-enhanced imaging can be used to demonstrate the involved vasculature.…”

Section: Portal Venous Airmentioning

confidence: 99%

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Hepatic Imaging in Neonates and Young Infants: State of the Art

et al. 2017

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Neonatal liver disease is an important source of morbidity in the pediatric population. The manifestation of liver disease in young infants may be different than in older patients, and there are a number of diagnoses that are unique to this age group. Familiarity with these entities is important as imaging plays a key role in the diagnostic workup, and prompt diagnosis is necessary to prevent complications. This article reviews the spectrum of liver pathologies that can manifest in the first 6 months of life and is intended to educate the general radiologist who may be faced with interpretation of neonatal liver imaging. Categories of disease that will be reviewed include cholestatic diseases, tumors, vascular anomalies, and acquired diseases. The authors will also review optimization of ultrasonography (US) and magnetic resonance imaging of the liver and present a systematic method for interpretation of neonatal liver US findings in the context of clinical and laboratory findings. RSNA, 2017.

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Pediatric applications of abdominal vascular Doppler imaging: Part I

Cited by 10 publications

References 79 publications

Normal Doppler Spectral Waveforms of Major Pediatric Vessels: Specific Patterns

Normal Doppler Spectral Waveforms of Major Pediatric Vessels: Specific Patterns

Pediatric Mesenteric Vasculature: Noninvasive Imaging and Catheter Arteriography

Hepatic Imaging in Neonates and Young Infants: State of the Art

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