Angiography.pptx

Welcome to the world of Angiography.
Angiography is a crucial diagnostic tool within Radiology.
It allows us to visualize blood vessels, aiding in the diagnosis and treatment of various medical conditions.

1. Angiography Presenter: Dr. Dheeraj Kumar MRIT, Ph.D. (Radiology and Imaging) Assistant Professor Medical Radiology and Imaging Technology School of Health Sciences, CSJM University, Kanpur Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 1

2. Introduction Welcome to the world of Angiography. Angiography is a crucial diagnostic tool within Radiology. It allows us to visualize blood vessels, aiding in the diagnosis and treatment of various medical conditions. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 2

3. Definition Angiography: What is it? Angiography is a medical imaging technique used to visualize the blood vessels in the body. This procedure is both diagnostic and interventional, helping us see and treat vascular conditions. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 3

4. Historical Milestones Step back in time to discover the roots of Angiography. Important moments in the history of Angiography include: 1896: Wilhelm Roentgen's discovery of X-rays - The foundation of medical imaging. 1927: Egas Moniz performs the first cerebral angiography - A groundbreaking application of X-ray technology. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 4

5. Pioneering Scientists Visionaries who shaped the field of Angiography include: Wilhelm Roentgen: Discovered X-rays in 1896, leading to the foundation of medical imaging techniques. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 5

6. Egas Moniz Performed the first cerebral angiography in 1927, pioneering the use of X-rays to visualize blood vessels. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 6

7. Sven-Ivar Seldinger Introduced the Seldinger technique in 1953, a minimally invasive method for accessing blood vessels, revolutionizing angiography procedures. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 7

8. Early Beginnings The birth of Angiography: Wilhelm Roentgen's discovery of X-rays in 1896 laid the foundation for the development of Angiography. The ability to see inside the body without surgery was a revolutionary breakthrough. Egas Moniz's 1927 cerebral angiography marked the first practical application of X-rays to visualize blood vessels in a patient's brain. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 8

9. Advancements in Angiography The journey of Angiography through time: 1953: Sven-Ivar Seldinger introduced the Seldinger technique. This technique involved a guide wire and catheter, allowing for a safer and more controlled approach to vascular access. 1960s: Development of digital subtraction angiography (DSA). DSA was a significant leap forward, providing real-time imaging with contrast subtraction, leading to improved visualization of vascular structures. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 9

10. Digital Subtraction Angiography (DSA) DSA - A game-changer in Angiography: DSA is a technique that combines X-ray technology with computer processing to provide real-time subtraction of images. It involves taking an initial image with contrast, then a subsequent image without contrast. The software subtracts the two images, leaving only the blood vessels. DSA greatly improved the quality and accuracy of angiographic imaging, enabling better diagnosis and treatment planning. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 10

11. In image A, Digital subtraction angiography (DSA) shows a ruptured wide-necked left internal carotid artery (ICA) aneurysm in a 69-year-old woman with subarachnoid hemorrhage. A pseudoaneurysm is noted at the ruptured aneurysm's fundus. Image B displays the same patient after the deployment of a 4 ϫ 15-mm Neuroform2 stent in the ICA, with the aneurysm embolized and no contrast material inside it. In Image C, an unsubtracted angiography view shows the stent in the ICA and the coils in the aneurysm. Image D is another unsubtracted view, displaying the markers of the stent and the coils. Images E and F represent a 17-month follow-up DSA, showing the left ICA with the aneurysm no longer visible and all branches patent. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 11

12. Catheter Angiography Advancements in catheter technology: Catheter angiography involves inserting a catheter into a blood vessel, often through the Seldinger technique. This allows for minimally invasive and highly precise angiographic procedures. Catheter angiography plays a crucial role in both diagnosis and treatment of vascular conditions, including angioplasty, stent placement, and embolization procedures. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 12

13.  1. Initial catheter coronary angiogram image. (A) Diffuse dilatation of the left main coronary artery (5 mm) with a giant aneurysm (9.2 mm) at the proximal left anterior descending segment (red arrows). (B) Right coronary artery with an aneurysm (5 mm) at the proximal segment with subtotal occlusion of the mid and distal segments (red arrows). Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 13

14. Magnetic Resonance Angiography (MRA) A non-invasive alternative: Magnetic Resonance Angiography (MRA) is a non-invasive imaging technique that uses magnetic fields and radio waves. MRA provides high-resolution images of blood vessels without ionizing radiation, making it a safer option for some patients. It's particularly useful for visualizing vascular structures in the brain, neck, and other parts of the body. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 14

15. Computed Tomography Angiography (CTA) The power of CT scanning: Computed Tomography Angiography (CTA) is an advanced imaging technique that combines CT scanning with contrast injection. It produces high-resolution 3D images of blood vessels, allowing for the detection and characterization of vascular diseases. CTA is known for its speed and accuracy in diagnosing conditions in various body parts, including the heart and the extremities. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 15

16. Interventional Angiography Beyond diagnosis: Angiography isn't limited to diagnosis; it also plays a pivotal role in minimally invasive treatments. Interventional angiography involves procedures like angioplasty, stent placement, and embolization, which can treat conditions such as arterial blockages, aneurysms, and abnormal blood vessel growth. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 16

17. Angiography Applications Where Angiography plays a vital role: Cardiac Angiography: Used to diagnose and treat heart conditions, including coronary artery disease and valvular issues. Cerebral Angiography: Vital for examining the blood vessels in the brain, often used in cases of stroke or aneurysms. Peripheral Angiography: Focuses on the blood vessels in the extremities, useful for diagnosing peripheral artery disease (PAD) and other vascular issues. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 17

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19. Risks and Safety Understanding the potential risks: While angiography is a valuable tool, it's not without risks. It exposes patients to ionizing radiation, and contrast dye can have side effects. Radiology professionals are trained to minimize radiation exposure to the patient while obtaining high-quality images. Medical teams take precautions to address contrast dye allergies and renal issues. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 19

20. Future Trends The future of Angiography: Advancements in imaging technology, such as improved detectors and imaging algorithms, will continue to enhance the accuracy and speed of angiography. Personalized medicine is an emerging trend, tailoring angiographic approaches to individual patients. Precision interventions will become increasingly common, thanks to improved imaging and minimally invasive techniques. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 20

21. Conclusion Angiography's historical journey: We've seen how angiography has evolved from the discovery of X-rays to the development of advanced techniques like MRA and CTA. Its role in both diagnosis and treatment is crucial to modern medicine. The field of angiography is dynamic, with ongoing advancements and expanding applications. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 21

22. References Roentgen, W. C. (1896). A New Kind of Rays: A Preliminary Communication. Nature, 53(1369), 274-276. Moniz, E. (1927). L’Encéphalographie Arterielle : Son Importance dans les Tumeurs Cérébrales . Revue de Neurologie , 33, 1106-1108. Seldinger, S. I. (1953). Catheter Replacement of the Needle in Percutaneous Arteriography: A New Technique. Acta Radiologica , 39(5), 368-376. Prince, M. R., & Brown, M. A. (1991). Magnetic Resonance Angiography: Current Status and Future Directions. Journal of Magnetic Resonance Imaging, 1(1), 97-104. Huda, W., & Scalzetti , E. M. (2006). Doses to Patients Undergoing Angiographic and Interventional Radiology Procedures: The Impact of New Technologies. Radiology, 240(3), 625-630. Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 22

23. Any Questions ? Open the floor for questions and discussions: Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 23

24. Thank You Thank the dear students for their attention Friday, 13 October 2023 Angiography By- Dr. Dheeraj Kumar 24