Transcatheter Arterial Embolization
Transcatheter Arterial Embolization - Related Videos
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Induction of Cerebral Arterial Gas Embolism in Rat
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2024
This protocol provides a detailed description of inducing cerebral air emboli in rats. It compares direct injection into the common carotid artery and introduction through the external carotid artery. It provides a technical description of the air bubble generator, the effect of different air volumes, and procedural challenges.
08:29
Microvascular Embolism Mouse Model for In Vivo Two-photon Microscopy Using Fluorescent Polystyrene Microspheres
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This protocol contains a thorough description of a step-by-step approach for a chronic cranial window and microvascular embolism mouse model optimized for in vivo two-photon microscopy imaging using fluorescent polystyrene microspheres.
03:06
Combination of High Ligation and Intraoperative Embolization Using Polidocanol for Treatment of Varicoceles
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2023
To reduce the postoperative recurrence rate of varicocelectomy, we combined high ligation of varicocele with intraoperative embolization. We injected polidocanol from the spermatic vein during surgery to embolize the branches of the spermatic vein and collateral veins. This is an alternative surgical method for the treatment of varicocele.
09:11
Embolic Middle Cerebral Artery Occlusion (MCAO) for Ischemic Stroke with Homologous Blood Clots in Rats
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Cited by 25 •
2014
In this paper, we demonstrate a standard method for producing an embolic middle cerebral artery occlusion with homologous blood clots (fibrin-rich) in adult rat. This model closely mimics human ischemic stroke and is suitable for preclinical study of thrombolytic therapy for ischemic stroke.
01:29
Pulmonary Embolism I: Introduction
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2025
Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
FAQs
Embolic agent selection shapes how the target vessel is occluded. TAE may use particles, coils, or liquid materials, allowing the interventional radiologist to deliver an agent through a catheter at the vessel requiring treatment. This component-based approach supports different clinical goals, including stopping hemorrhage or reducing blood supply to abnormal tissue.
Angiographic imaging helps guide the catheter to the artery that supplies the relevant tissue or bleeding site. This visual guidance enables selective treatment rather than nonspecific vascular blockage. By focusing delivery at a targeted vessel, the procedure can limit effects on surrounding tissue and contribute to organ-sparing treatment when clinically appropriate.
TAE offers a less invasive alternative to open surgery for several vascular and bleeding conditions. Instead of exposing the affected area surgically, the procedure uses catheter-based delivery within the vascular system. Its selective approach may reduce blood loss and preserve surrounding tissue, making it relevant when targeted vascular control is preferred.
A typical workflow begins with angiographic imaging to identify the artery involved in bleeding or supplying abnormal tissue. An interventional radiologist then advances a catheter through the vascular system toward that vessel. The selected embolic material is delivered at the target, where it blocks blood flow to support hemorrhage control or reduce tissue perfusion.
Clinical uses include traumatic hemorrhage, gastrointestinal hemorrhage, uterine fibroids, vascular malformations, and selected tumors. The underlying purpose differs by condition: embolization can control active bleeding, reduce blood supply to abnormal tissue, or support treatment of a defined vascular lesion. These applications illustrate why the technique is used across multiple areas of medicine.
By limiting blood flow at a selected artery, TAE can help control hemorrhage or reduce perfusion to abnormal tissue. Its minimally invasive, targeted character may reduce blood loss and preserve nearby tissue compared with more extensive intervention. In appropriate cases, these features support organ-sparing treatment and provide an alternative to open surgery.