Endovascular Coiling Using Target Tetra® Coils for Small Intracranial Aneurysm

Who can take part

• Adults aged 19 to 80 years
• Patients with intracranial aneurysms suitable for endovascular embolization therapy with a maximum diameter of 5mm or less
• Including both ruptured and unruptured intracranial aneurysms
• Patients for whom the use of Target Tetra® coil is expected in endovascular coil embolization therapy
• Patients who have undergone balloon-assisted coiling or adjunctive stent placement during coil embolization
• Subjects who have received an explanation of the clinical study and provided written consent to participate in the study

Who cannot take part

• Patients who have undergone surgical or endovascular treatment for the target intracranial aneurysm
• Patients in whom vascular access to the target intracranial aneurysm is not possible due to conditions such as moyamoya disease, dural arteriovenous malformation, significant atherosclerotic stenosis, or severe vessel tortuosity
• Patients with hypersensitivity reactions to the materials used in the coils, such as platinum, tungsten, nickel, or stainless steel
• Patients with significant renal dysfunction or uncorrected coagulation disorders
• Age below 18 or above 81 years
• Infectious, dissecting, traumatic, or mycotic aneurysms
• Patients with ruptured intracranial aneurysms classified as Hunt and Hess grade 5 (deep coma)
• Patients with serious adverse reactions to contrast agents
• Patients who are unable to complete planned follow-up observations due to expected short-term survival or comorbidities
• Female patients who are pregnant (positive pregnancy test) or planning pregnancy within 12 months after coil placement, or breastfeeding