Clinical Information

Interventional Radiology (IVR)

Our section offers minimally invasive non-surgical procedures known as interventional radiology (IVR). A wide variety of diseases of patients of varied ages are treated using angiographic catheters or needles under radiological image guidance by angiography, ultrasound, or computed tomography (CT). Interventional procedures, as they are minimally invasive, have become an essential option in the diagnostic and therapeutic process of current clinical practice. Therefore, we cooperate with the relevant departments in various fields in a multi-disciplinary manner including oncology, vascular medicine, gastroenterology, respiratory medicine, trauma and acute critical care, pediatric care, and organ transplant. We also offer outpatient consultation and inpatient services as well as 24-hour on-call duty to respond to requests for emergency procedures. The IVR center was established in 2004 at Osaka University Hospital, and we have organized a dedicated team of physicians, radiology technologists and nurses to provide the latest interventional techniques as listed below:

Vascular interventions:
• Tumor embolization
- Chemoembolization of liver cancers
- Uterine fibroid embolization (UFE)
- Renal tumors, head and neck tumors, bone and soft tissue tumors
• Embolization for vascular lesions
- Visceral aneurysms, arteriovenous malformations (AVMs), aortic aneurysm endoleaks, gastrointestinal varices, varicoceles
• Angioplasty
- Peripheral arterial diseases, renovascular hypertension, hemodialysis shunt failure, vascular stenosis after liver transplantation
• Venous interventions
- Sclerotherapy of venous malformations, IVC-filter placement, central venous catheter/port placement, adrenal venous sampling
• Hemostasis
- Traumatic and iatrogenic bleeding, gastrointestinal bleeding, hemoptysis, postpartum hemorrhage, epistaxis

Non-vascular interventions:
CT-guided tumor biopsy
• CT-guided tumor ablation
- Radiofrequency ablation for liver cancer, cryoablation for renal cancer
- Biliary drainage and stenting
- Abscess and cyst drainage

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