Tuesday, March 11, 2014

Methods for performing angiography:-Classical methods (conventional), resume puncture or catheteriz


Angiography as part of the cardiovascular radiology that using contrast agents show heart, blood and lymph vessels. They are divided into:-angiography-venography-lymphography-View is done exclusively in hospitalized patients. -The flow of the contrast medium is recorded and displayed on monitor. -Radiologist and radiology engineer are constantly with the patient. -View the last 15 minure to 1 hour. -After reviewing the catheter is removed, resume and the puncture site is compressed.
Methods for performing angiography:-Classical methods (conventional), resume puncture or catheterization of blood water by Seldinger-in. -Digital techniques: DSA digital subtraction angiography TO (U.S.) ultrasound, ultrasound-CT computer tomography MRI magnetic resonance arteriography are angiographic methods that analyze the arteries with the use of contrast agents. -Using resume the Seldinger method of percutaneous catheterization of blood water. includes several stages: preparation-patient-is: blood coagulation, platelet count, finding sugar, urea and creatinine, and snapshot-lung anesthesia-puncture and catheter digital subtraction angiography (DSA) DSA is a radiological diagnostic contrast imaging methods of vascular structures in technique subtrakcije combination of computer and video technology. Method of work - the patient is placed in supinacijski položaj.Područje body to be tested is shown diascopically (canola). Signal from the TV camera on the image intensifier is deposited in the memory where the image is stored in digital form (mask). Automatic spray the cubital vein applied 40 cc of contrast medium speed 12-15 cc / s and make snimanje.Dobivena image is disposed in the secondary computer memoriju.Maska electronically subtrahira the assembly after the administration of contrast agents. -Possible evaluation of congenital anomalies, location, number, size and shape of blood lines, then inflammatory, degenerative, traumatic and neoplastic changes. CT angiography (CTA)-helical CT (helical) - has since 1989. was introduced to an entirely new concept that scanning has dramatically increased the efficiency of the CT scan. -Gaining thin sections and touch (densely stacked and spiral) Spiral CT can provide three-dimensional reconstructions (3D) very high-quality combined with iv bolus injections and subtraction techniques, CT angiograms can be reconstructed, giving the projection of three-dimensional resume images of the vascular tree. -Display resume 3D object can be made on paper, film, or X-ray film, and can be transferred to a floppy disk or CD. MAGNETIC angiography (MRA)-shows vascular magnetic resonance noninvasive diagnostic techniques. -Usually is called. time of flight (TOF) technique, a technique developed and display vessels using contrast agents (CE-technique). -Determined part of the body where they want to show the blood vessels and then use the transmitter coils emit radio frequency signals. resume -Figure shows the flow of blood through the vessels, which can be seen as a white image on a dark background.
2007 (13) November (13) X-ray radiation What is Radiology? Digitizing resume CT Editorial generally about MRI MRI devices recorded resume signals that derives from the core ... Ultrasound Angiography Management in Radiology Radiological Information System (RIS and PACS) Radiation resume protection Mammography resume


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