Transcript Interventional Radiology Treatments

UMass Memorial
INTERVENTIONAL RADIOLOGY TREATMENTS:
Tumor Ablation
Intra-arterial Therapies
• Tumor ablation is a technique that makes
use of a “heating” probe to destroy
metastasis within the liver.
• The metastasis is completely destroyed
by heating the tumor with an alternating
radiofrequency electrical current or
microwave.
• Targeted tumors are usually up to 3 cm in
size, though treatment for larger tumors
is evolving.
• Tumor ablation can be performed
percutaneously (through the skin) using
CT Scan to guide the probe.
• Intra-arterial therapies are administered
by threading a catheter from an artery in
your groin directly up into your liver.
• The Interventional Radiologist places the
catheter directly into the blood vessel
that is “feeding” the metastasis.
• Intra-arterial treatment delivers the
treatment directly to the metastasis
without subjecting your whole body to
the potential adverse side effects of the
treatment.
Liver metastasis
Probe in metastasis
After ablation
A probe is positioned into the liver
metastasis to deliver heat.
Arteriogram of the liver, performed by
injecting contrast in a catheter, showing the
blood feeding the metastasis. The drug will
be selectively delivered.