Coronary Angiography
Coronary Angiography - Related Videos
06:25
Coronary Angiography During Ex-Situ Heart Perfusion in a Porcine Model
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2024
Screening for coronary artery disease could increase the procurement of donor hearts with extended criteria. A protocol for performing reproducible coronary angiography during ex-situ heart perfusion is described herein in a porcine model.
13:10
Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
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Cited by 7 •
2017
Surgical correction of ALCAPA is highly recommended, regardless of age or the degree of intercoronary collateralization. This protocol presents a technique for the direct re-implantation of adult-type ALCAPA into the aorta to re-establish the dual-coronary perfusion. Whenever feasible, direct re-implantation is preferred to other surgical correction techniques.
06:39
Intracoronary Acetylcholine Provocation Testing for Assessment of Coronary Vasomotor Disorders
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Cited by 36 •
2016
Intracoronary acetylcholine testing has been established for the assessment of epicardial coronary spasm more than 30 years ago. Recently, the focus has shifted towards the microcirculation and it has been shown that microvascular spasm can be detected using ACH-testing. This article describes the ACH-test and its implementation in daily routine.
06:39
Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice
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Cited by 20 •
2015
Coronary flow reserve (CFR) is useful for assessment of myocardial oxygen demand and evaluation of cardiovascular risk. This study establishes a step-by-step transthoracic Doppler echocardiographic (TTDE) method for longitudinal monitoring of the changes in CFR, as measured from coronary artery in mice, under the experimental pressure overload of aortic banding.
01:17
Time-of-Flight Magnetic Resonance Angiography to Visualize Blood Vasculature
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2025
Position the patient's head inside the radiofrequency, or RF, coil of a magnetic resonance imaging, or MRI, machine.Initiate the time-of-flight magnetic resonance angiography or TOF MRA, a non-invasive technique for visualizing blood vessels.Select a tissue slice for imaging to visualize arteries and veins.Apply an RF pulse to excite the protons within the selected imaging slice. These protons release energy, which is detected as an MR signal.Repeated application of RF pulses saturates the MR...
FAQs
The iodine-based contrast agent makes the coronary vessels visible during X-ray imaging. As it moves through the arteries, clinicians observe how circulation follows the vessel pathway and whether the contrast passes through areas with altered caliber. These visual patterns help identify where blood flow may be affected and support assessment of coronary artery disease.
A change in vessel caliber can indicate narrowing within a coronary artery. Its location and apparent severity help clinicians determine which segment is obstructed and how substantially the vessel is affected. This information adds anatomical detail to the circulation assessment, allowing the findings to guide treatment decisions rather than simply indicating that an abnormality exists.
The catheter provides a route for delivering the iodine-based contrast agent into the coronary vessels. The contrast creates visibility within the arteries, while X-ray imaging records its movement through the circulation. Together, these components connect the delivery of the imaging agent with the recorded appearance of the vessels, enabling focused evaluation of coronary artery abnormalities.
During the examination, a catheter delivers iodine-based contrast into the coronary vessels while X-ray images record the contrast as it moves through the arteries. Clinicians then examine the vessel caliber and circulation shown by the images. The resulting visualization identifies the location and severity of arterial obstruction relevant to further cardiovascular care.
Clinicians can use coronary angiography when evaluating suspected coronary artery disease. The findings show whether arterial narrowing or blockage is present and describe its location and severity. That information supports decisions about subsequent management, including whether treatment planning should consider procedures such as angioplasty or stent placement.
The images provide anatomical information about the affected coronary vessels, including the position and severity of obstruction. Clinicians can use these findings to evaluate treatment options such as angioplasty and stent placement and to shape individualized cardiovascular care. In this way, the examination links visualization of disease with a more targeted clinical plan.