Doppler Renal Assessment, Protocols, and Interpretation
2023年6月5日 · Summarize the common indications for a renal Doppler ultrasound examination for native as well as transplant kidneys. Describe classic imaging findings associated with renal artery stenosis, renal artery thrombosis, renal vein thrombosis, and pseudoaneurysms/arteriovenous fistulas.
Duplex Ultrasound of Native Renal Vasculature - Radiology Key
2020年1月2日 · Doppler ultrasound evaluation of the renal arteries is one of the more challenging examinations to perform, given the small size of the renal vessels, their depth, and variable anatomy. The examiner is required to have an understanding of the renal anatomy, normal waveform physiology, and image optimization techniques.
The Renal Vasculature: What the Radiologist Needs to Know
2021年7月30日 · Complete renal vascular Doppler assessment involves determining the patency and waveform of the main renal artery and vein; the waveform of the arcuate and interlobar arteries in the upper, interpolar, and lower pole regions; and their associated resistive index (RI).
The Kidneys - Radiology Key
2016年3月5日 · VENOUS ANATOMY. The renal venous anatomy parallels the arterial anatomy. Normal venous flow on spectral Doppler has a relatively low velocity. Its waveform is driven by right atrial activity. Accessory left renal veins are less frequent than accessory renal arteries; however, accessory right renal veins are quite common.
Sonography of the Renal Vessels - Radiology Key
2015年12月26日 · Successful sonography of renal vessels requires the use of gray-scale sonography, tissue harmonics, color flow imaging, power Doppler, and spectral Doppler wave analysis. Additionally, ultrasound contrast agents can …
Doppler Renal Assessment, Protocols, and Interpretation
2023年6月5日 · Doppler ultrasound (US) is a well-established and useful technique for evaluating the renovascular system and associated pathologic conditions. As with other US examinations, advantages include its noninvasive nature, relatively low-costs, and generally well-tolerated. However, the technique is high …
2023年1月4日 · The kidneys are highly vascularized organs receiving 20%–25% of the cardiac output or roughly 1.0–1.2 L/min (1,2). Functionally, the kidneys play pivotal roles in plasma filtration to maintain fluid and electrolyte balance as well as regulate blood pressure. Renal vascular pathologic conditions may lead to disruption of normal renal func-
Renal Artery Doppler - Sonographic Tendencies
2016年11月21日 · Renal artery doppler is a powerful tool for the diagnosis of Renal Artery Stenosis (RAS). One of the more involved exams in the sonographers arsenal, learning the proper anatomy and techniques can make the process a challenging yet pleasurable one. Indications. Hypertension; Abdominal bruit; Known renal artery stenosis follow up; Elevated BUN ...
Ultrasonography of the Kidney: A Pictorial Review - PMC
Ultrasonography of the kidneys is essential in the diagnosis and management of kidney-related diseases. The kidneys are easily examined, and most pathological changes in the kidneys are distinguishable with ultrasound. In this pictorial review, the most common findings in renal ultrasound are highlighted.
Renal Imaging: Core Curriculum 2019 - American Journal of Kidney …
2019年2月15日 · Doppler signal allows for very sensitive and dynamic evaluation of blood flow in arteries and veins and is useful for evaluating the renal arteries in native and transplant kidneys, as well as surveying the renal parenchyma vasculature. An example of both a grayscale and Doppler evaluation of the kidney can be seen in Figure 2. Spectral Doppler ...