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Fluoroscopic angiography is an advanced imaging technique that utilizes fluoroscopy and contrast agents to visualize the vascular system in real time. It plays a crucial role in diagnosing and managing a range of vascular conditions, including arterial blockages, aneurysms, and vascular malformations. The assessment process involves carefully selecting patients, preparing them, and adhering to safety protocols to minimize radiation exposure and contrast-related risks. Standardized protocols ensure high-quality imaging and accurate anatomical visualization, which are essential for guiding interventions. Interpretation of angiographic images requires a detailed understanding of vascular anatomy, pathology, and hemodynamics to support timely and effective clinical decision-making. This educational activity enhances clinician competence in performing fluoroscopic angiography by reviewing patient preparation, imaging protocols, radiation safety, and diagnostic interpretation. Participants gain a clearer understanding of how to tailor angiographic procedures to individual patient needs while ensuring optimal image quality and safety. The course also emphasizes the importance of interprofessional collaboration among radiologists, technologists, nurses, and referring physicians in coordinating patient care. This collaborative approach enhances procedural efficiency, improves diagnostic accuracy, and promotes safer outcomes, ultimately contributing to better patient care and informed treatment planning. Objectives: Identify the common indications for angiography. Outline how different 2-dimensional fluoroscopy views can be used to determine the 3-dimensional anatomical orientations. Review fluoroscopy techniques to minimize radiation exposure while obtaining diagnostic image quality. Summarize how interprofessional communication and coordination can improve diagnostic results for patients who need fluoroscopic angiography assessment. Access free multiple choice questions on this topic.

Fluoroscopy-guided catheter angiography is an interventional procedure that uses percutaneous access of arteries with needles and catheters to inject contrast for vessel opacification.[1] This procedure may be diagnostic or therapeutic. While some providers use the term "angiography" as a general term to encompass the visualization of arteries, veins, or lymphatics, this topic specifically refers to the term "angiography" to denote the visualization of arteries, also known as arteriography. The terms venography and lymphangiography refer to the imaging of veins and lymphatic vessels, respectively. Nevertheless, the principles behind angiography are widely applicable to other vessel types. Sven Ivar Seldinger’s discovery in 1953 of a technique that involved substituting a needle or trocar with a percutaneous catheter, now known as the Seldinger technique, paved the way for catheter angiography and the emergence of Interventional Radiology as a specialty.[2] The following decades gave rise to several non-invasive angiographic advancements, including computed tomography and magnetic resonance angiography.[1] Catheter angiography remains the gold standard for a wide variety of pathologies. Today, catheter angiography is used to interrogate arteries in nearly every part of the human body, including the brain, neck, heart, chest, abdomen, pelvis, and extremities. Applications of catheter angiography are immense and include the identification of arteriovenous malformations, aneurysms, atherosclerosis, embolisms, dissections, congenital abnormalities, stenosis, hemorrhage, and other arterial pathologies. Angiography may help guide the implantation of stents and grafts or provide assessment before surgery, chemoembolization, or internal radiation therapy. Fluoroscopy is undoubtedly the most important tool for an interventionalist. Herein, the general principles of fluoroscopy-guided catheter angiography are described, with a focus on the appropriate use of fluoroscopy guidance for diagnosing arterial pathology.

Fluoroscopy-guided catheter angiography complications are uncommon and can be divided into 4 groups: percutaneous access-site, catheter-related, systemic, and radiation-related. Access-site hematoma is an uncommon but potentially serious complication that may occur in up to 10% of patients.[8] Major hematoma requiring further intervention occurs in approximately 1.7% of axillary punctures and 0.5% of femoral punctures.[8] Dissection or thrombus may occlude the access site.[1] Pseudoaneurysm and arteriovenous fistula also occur infrequently. Ultrasound-guided arterial access has decreased the frequency of these access-related complications. Antibiotic prophylaxis is generally not required for catheter angiography, given the rarity of puncture site infection.[1] Catheter-related complications include subintimal dissection of guidewires or catheters, as well as embolization. These complications occur in less than 0.5% of cases.[1] Systemic complications are seen in less than 1% of angiographic cases.[1] Nausea, vomiting, and vasovagal reactions are most frequent. A vasovagal reaction should not be mistaken for an allergic reaction to contrast material. Allergic reactions occur in approximately 4% of angiographic procedures, including urticaria, edema, and wheezing.[1] True allergic reactions occur more frequently with higher-osmolar contrast agents. Contrast-induced nephropathy (CIN) is characterized by a 50% increase or a greater than 0.3 mg/dL increase in serum creatinine that occurs within 48 hours after contrast administration. The incidence of CIN ranges from 0.3% to 2.3% in angiography.[1] CIN has a higher incidence in patients with renal insufficiency, diabetes, and dehydration.[9] Reports of fluoroscopy-related skin injuries began to increase in the early 1990s, coinciding with the increased utilization of fluoroscopy-guided interventions.[10] Skin reactions may range from mild to severe. Radiation dose, size of the irradiated skin surface, and the interval between irradiations affect the degree of dermal damage.[10] Interventionalists must reduce both patient and operator radiation exposure whenever possible.

Angiography requires an interventional suite with the appropriate staffing. Staff training and an interventional physician are critical to the standards of practice. The 2016 Consensus Statement on Staffing Guidelines for Interventional Suites states that all interventional radiology staff members must work together as a cohesive unit. Each member is not interchangeable with nurses from other departments or other areas of radiology.[12] Interventional procedures are a team-based effort; thus, the enhancement of healthcare outcomes depends on effective communication and appropriate staffing.[12]