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Doctor insights on: What Is A Renal Ultrasound

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Dr. Michael Gabor
2,286 doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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What exactly is a renal ultrasound study?

Using sound waves : Renal us uses sound waves to pass through the tissues to make black and white images of the kidney tissue and urinary bladder. It is painless and uses no dye. It takes about 20 minutes to perform and is interpretted by a licsenced doctor called a radiologist. ...Read more

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What is a renal ultrasound with doppler? What does it show?

What is a renal ultrasound with doppler? What does it show?

Blood flow to kidney: iUltrasound shows the picture of the kidney and Doppler shows the blood flow into the kidney ...Read more

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What is a renal ultrasound with doppler? What does it show?

What is a renal ultrasound with doppler? What does it show?

Ultrasound of kidney: This is an ultrasound of the kidneys. This will show the condition of the kidneys. The color flow will show what kind of blood flow to the kidneys exists. For example, infections of the kidneys will show an increase in the blood flow. And increased color. It depends on why this study is being performed. ...Read more

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What is a Doppler ultrasound?

What is a Doppler ultrasound?

A Doppler ultrasound is a noninvasive test that can be used to estimate your blood flow through blood vessels by bouncing high-frequency sound waves (ultrasound) off circulating red blood cells: A regular ultrasound uses sound waves to produce images, but can't show blood flow. A Doppler ultrasound may help diagnose many conditions, including: Blood clots, Poorly functioning valves in your leg veins, which can cause blood or other fluids to pool in your legs (venous insufficiency), Heart valve defects and congenital heart disease, A blocked artery (arterial occlusion), Decreased blood circulation into your legs (peripheral artery disease), Bulging arteries (aneurysms), Narrowing of an artery, such as in your neck (carotid artery stenosis). A Doppler ultrasound can estimate how fast blood flows by measuring the rate of change in its pitch (frequency). During a Doppler ultrasound, a technician trained in ultrasound imaging (sonographer) presses a small hand-held device (transducer), about the size of a bar of soap, against your skin over the area of your body being examined, moving from one area to another as necessary. This test may be done as an alternative to more invasive procedures, such as arteriography and venography, which involve injecting dye into the blood vessels so that they show up clearly on X-ray images. A Doppler ultrasound test may also help your doctor check for injuries to your arteries or to monitor certain treatments to your veins and arteries. ...Read more

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What is a renal scan for?

What is a renal scan for?

Functional scan..: Renal scan is usually ordered to evaluate arterial flow to the kidneys as well as cortical concentration and excretion of tracer. Lasix (furosemide) renal scan is used to rule out obstruction. Dmsa renal scan can be used to evaluate for pyelonephritis / scarring. ...Read more

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What exactly is a renal cyst?

What exactly is a renal cyst?

Fluid filled cavity: Kidney cysts are formed by blockage of a minute kidney tubule called a nephron. We have about a million nephrons in each normal kidney. Simple kidney cysts are very common and present in about one third of people and are benign. Polycystic kidneys have cysts throughout the organ, are usually present on both sides and are an inherited congenital condition. Rare complex cysts can be cancerous. ...Read more

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What is a renal infarction?

What is a renal infarction?

Kidney death: If the blood supply to the kidney is blocked or damaged (by clot or trauma), kidney tissue dies. Renal infarction can involve some or all of 1 or both kidneys. Since the kidneys are a vital organ and they don't regenerate if dead (they can recover from acute tubular necrosis, a separate condition) this is potentially very serious and warrants specialty evaluation/care. ...Read more

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What is a ctg scan? What is an afi?

What is a ctg scan? What is an afi?

Fetal health: CTG is cardiotocography , a device monitoring fetal heart rate and contractions during pregnancy. Also called electronic fetal monitor (EFM). Amniotic fluid index (AFI) is a measure of amount of amniotic fluid in cm. determined by ultrasonography and is measure of fetal health. AFI normal values 8-18. ...Read more

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What exactly is a doppler ultrasound?

What exactly is a doppler ultrasound?

Doppler ultrasound: A doppler ultrasound uses sound waves to measure flow through vessels. When blood goes through a vessel it changes the sound waves in a way that will give us an idea if there is any obstruction or reduction in flow. This is very noninvasive and very helpful. ...Read more

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What is a transvaginal ultrasound?

What is a transvaginal ultrasound?

Sono in vagina: It is an ultrasound done by placing the probe into the vagina to allow a more accurate view of the pelvic anatomy. ...Read more

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What will a renal ultrasound show?

What will a renal ultrasound show?

Anatomy: The ultrasound will confirm you have 2 kidneys, that they are normal size, that there are no cysts, tumors, or stones, and that they are not obstructed. A renal doppler is used to confirm that the renal artery blood flow isn't restricted. ...Read more

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In what way is a renal agenesis diagnosed?

In what way is a renal agenesis diagnosed?

Often by accident: The availability of ultrasound has increased the likelihood that an abdominal study done for an unrelated issue will pick up renal agenesis or other malformation. I suggest the study for first degree relatives of a person with such renal defects as their risk increases to 1/50 from the 1/500 of the general population.It might also be found when evaluating a kidney issue, like recurrent uti's. ...Read more

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What is a renogram?

What is a renogram?

Kidney scan: A renogram measures the function of the kidneys. It is commonly used to make sure they are draining well to the bladder vs finding an obstruction (such as may happen with a kidney stone). ...Read more

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What is a pelvic ultrasound like? What is the procedure?

What is a pelvic ultrasound like? What is the procedure?

Ultrasound : Ultrasound of the pelvic structure. This can be performed across the lower abdomen with the bladder full or using the vagina as a window to the uterus and ovaries. With the bladder full it may be uncomfortable but doesn't hurt ...Read more

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What is it like to have a renal scan?

What is it like to have a renal scan?

Very reasonable test: The patient is positioned on table with nuclear camera usually positioned underneath. Via a vein the radiotracer usually Technetium 99m MAG3 is injected in a bolus while continuous imaging is being performed of the kidneys and bladder Sometimes lasix (furosemide) a diuretic is injected following the first phase of study to see if kidney might be obstructed. It generally is very easy low radiation test. ...Read more

Rishi Kumar Dr. Kumar
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What exactly is a renal diet?

Rishi Kumar Dr. Kumar
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What exactly is a renal diet?

Protein/Fluid Limits: The kidney is responsible for excreting waste and maintaining an electrolyte balance. Patients with kidney disease can have a decreased capacity to do the aforementioned, so "renal diets" are focused on limiting proteins (which are metabolized into kidney-excreted wastes like urea), fluids, and electrolyte fluctuations. This is analogous to "diabetic diets" controlling blood glucose fluctuations. ...Read more

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Dr. Brad Goldenberg
67 doctors shared insights

Ultrasound Of Kidneys (Definition)

When babies have had a urinary tract infection, it is often wise to use imaging studies to look for causes and to evaluate the health of the kidneys. The ultrasound of the kidneys will identify if there is a ...Read more