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Interventional and digital radiology PowerPoint Presentation

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Description : Check out this medical presentation on Radiology and Imaging, which is titled "Interventional and digital radiology", to know about interventional and digital radiology.

Tags : Radiology, Imaging, Interventional, digital radiology

Published on : Aug 02, 2021 | Views : 2070 | Downloads : 7

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INTERVENTIONAL AND DIGITAL RADIOLOGY SAJID EJAZ
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INTRODUCTION This type of radiology provides minimally invasive image-guided diagnosis and treatment of diseases in every organ or system, using the least invasive techniques available. Compared to open surgery, these procedures produce less pain, reduce the risk of infection and have a shorter recovery and hospital stay time.
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Interventional radiology requires the introduction of a catheter – a long, thin, flexible tube – into the body, typically into an artery. The catheter combines the use of medical imaging with diagnostic and therapeutic procedures. These procedures are primarily used to unblock blood vessels – either coronary arteries to prevent heart attacks; carotid arteries to prevent cerebrovascular accidents; or renal arteries to cure secondary hypertension.
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HISTORY OF INTERVENTIONAL RADIOLOGY  Interventional radiology (IR) was only possible following the detection of x-rays by W.C. Röntgen. Also the development of equipments, contrast media, instruments and catheters was necessary. The historical steps since 1964 and some ideas that existed before are discussed, including special highlights in vascular interventional radiology.
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All the interventional radiological methods used in biliary diseases, urogenital problems and tumour therapy are shortly discussed. The paper gives a personal view of the history of IR, from its beginnings up to day, by a man actively working in this field.
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WHO INVENTED INTERVENTIONAL RADIOLOGY Charles Theodore Dotter (14 June 1920 – 15 February 1985) was a pioneering US vascular radiologist who is credited with developing interventional radiology. Dotter, together with his trainee Dr Melvin P. Judkins, described angioplasty in 1964.
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WHEN WAS INTERVENTIONAL RADIOLOGY INVENTED In 1973, Chinese radiologist first conducted the angiography test. Interventional radiology was introduced into China in the 1980s, it was readily developed through the sponsoring of training class (1981) and academic conferences (1986).
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INTERVENTIONAL RADIOLOGY IMAGING PROCEDURE Fluoroscopy, which uses differential X-rays absorption from different tissues to produce cine-like images; Digital subtraction angiography, which uses computer subtraction of background images to enhance arterial blood-flow;
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ultrasound, based on the same principle as fluoroscopy but taking advanced of using differential reflection of sound waves inside the body instead of X-rays; computed tomography , which uses X-rays to create cross-sectional images of the body; and magnetic resonance imaging,which provide the same results using magnetic field instead of radiation
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KIND OF DIAGNOSE CAN BE DONE Treatment of vascular problems angiogram; angioplasty +/- stenting Embolization (blockage) of arteries to stop bleeding or treat tumours,etc; Biopsies Drainage of fluid collections
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Abscesses, kidneys or bile ducts/gallbladder Insertion of feeding tubes Treatment of liver tumors, bone tumors,varicose veins, portal hypertension etc.
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PROCEDURE DONE IN INTERVENTIONAL RADIOLOGY Angiography. Arteriovenous Malformations (AVM). Balloon Angioplasty. Biliary Drainage and Stenting.
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Bleeding internally. Central Venous Access. Chemoembolization. Embolization etc.
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BALLOON DILATION OF THE STENOSED INTERNAL JUGULAR VEIN (Photo from x-ray angiograph monitor) While the pressure in the balloon is relatively low. stenosis prevents the balloon from inflating in the middle. Further increase in pressure will dilate the narrowing the and restore the full blood flow.
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DIAGNOSTIC Angiography: Imaging the blood vessels to look for abnormalities with the use of various contrast media, including iodinated contrast, gadolinium based agents, and CO2 gas.[8] Angiogram showing a transverse projection of the vertebrobasilar and poster ior cerebral circulation.
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Percutaneous transhepatic cholangiography Cholangiography : Imaging the bile ducts within the liver to look for areas of blockage.
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Biopsy: Taking of a tissue sample from the area of interest for pathological examination from a percutaneous or transvenous approach.[9] Brain biopsy
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DIAGRAM OF INTERVENTIONAL RADIOLOGY PROCEDURE
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THANK YOU