why dtpa scan is done?
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This test provides information on the blood supply, function and flow of urine from the kidneys. A DTPA or MAG3 scan can help your doctor assess individually how each of your kidneys is working and to look for a cause of high blood pressure or other abnormal test result.
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An NT scan is a safe, noninvasive test that doesn't cause any harm to you or your baby. Keep in mind that this first trimester screening is recommended, but it's optional. Some women skip this particular test because they don't want to know their risk.
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You aren't exposed to ionizing radiation, so the procedure is safer than X-rays and CT scans. In fact, there are no known harmful effects when it's used as directed. Ultrasound captures images of soft tissues that don't show up well on X-rays.
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DTC tests are very accurate at detecting genetic markers that increase disease risk. But being at increased risk for a disease doesn't mean you will definitely get the disease.
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Arterial duplex scan is a painless exam that uses high-frequency sound waves (ultrasound) to capture internal images of the major arteries in the arms, legs and neck. A special jelly is placed on the area being examined while a wand-like device called a transducer is passed lightly over the skin above the artery.
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The actual CT scan takes only about 5 minutes in total (with set up and scanning time). The scan itself only takes seconds.
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CT exams are generally painless, fast and easy. With multidetector CT, the amount of time that the patient needs to lie still is reduced. Though the scan is painless, you may have some discomfort from remaining still for several minutes or from placement of an IV.
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Overview. A hepatobiliary iminodiacetic acid (HIDA) scan is an imaging procedure used to diagnose problems of the liver, gallbladder and bile ducts. For a HIDA scan, also known as cholescintigraphy and hepatobiliary scintigraphy, a radioactive tracer is injected into a vein in your arm.
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The decision to order contrast-enhanced CT is based on the clinical question being asked. Contrast agents are used to differentiate between organs and improve lesion detection and characterization. The type of contrast agent and route of administration can increase the diagnostic yield of the study ordered.
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The doctor will do some simple quick checks to test your vision, muscle strength, and ability to think and speak. Diagnostic testing consists of either a computed tomogram (CT) or magnetic resonance imaging (MRI) scan of the brain and carotid arteries to determine the possible cause of the TIA.
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An MRI scan with contrast only occurs when your doctor orders and approves it. During the procedure, they'll inject the gadolinium-based dye into your arm intravenously. The contrast medium enhances the image quality and allows the radiologist more accuracy and confidence in their diagnosis.
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You will likely have a head CT scan or brain MRI. A stroke may show changes on these tests, but TIAs will not. You may have an angiogram, CT angiogram, or MR angiogram to see which blood vessel is blocked or bleeding. You may have an echocardiogram if your doctor thinks you may have a blood clot from the heart.
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CT scans are quick, painless and generally safe. But there's a small risk you could have an allergic reaction to the contrast dye used and you'll be exposed to X-ray radiation. The amount of radiation you're exposed to during a CT scan varies, depending on how much of your body is scanned.
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Positron Emissie Tomografie (PET-scan) Vervolgens wordt er een scan gemaakt. De radioactieve stof die u krijgt toegediend, is niet gevaarlijk en verdwijnt binnen enkele uren weer uit het lichaam. De radioactieve stof heeft geen bijwerkingen.
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A CT scan works similar to an x-ray. ... CT angiogram (CTA) can be used to view arteries and veins. Contrast dye injected into the bloodstream helps the computer "see" the vessels. CTA images can be 3-D reconstructed so that the cerebral vessels and accompanying pathology can be rotated and viewed from all angles.
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The takeaway. An NT scan is a safe, noninvasive test that doesn't cause any harm to you or your baby. Keep in mind that this first trimester screening is recommended, but it's optional. Some women skip this particular test because they don't want to know their risk.
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Why is this test done? An MRA of the head is done to look at the blood vessels leading to the brain to check for a bulge (aneurysm), a clot, or a narrowing (stenosis) because of plaque.